---
_id: '33816'
author:
- first_name: Tobias
  full_name: Gburrek, Tobias
  id: '44006'
  last_name: Gburrek
- first_name: Christoph
  full_name: Boeddeker, Christoph
  id: '40767'
  last_name: Boeddeker
- first_name: Thilo
  full_name: von Neumann, Thilo
  id: '49870'
  last_name: von Neumann
  orcid: https://orcid.org/0000-0002-7717-8670
- first_name: Tobias
  full_name: Cord-Landwehr, Tobias
  id: '44393'
  last_name: Cord-Landwehr
- first_name: Joerg
  full_name: Schmalenstroeer, Joerg
  id: '460'
  last_name: Schmalenstroeer
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: Gburrek T, Boeddeker C, von Neumann T, Cord-Landwehr T, Schmalenstroeer J,
    Haeb-Umbach R. <i>A Meeting Transcription System for an Ad-Hoc Acoustic Sensor
    Network</i>. arXiv; 2022. doi:<a href="https://doi.org/10.48550/ARXIV.2205.00944">10.48550/ARXIV.2205.00944</a>
  apa: Gburrek, T., Boeddeker, C., von Neumann, T., Cord-Landwehr, T., Schmalenstroeer,
    J., &#38; Haeb-Umbach, R. (2022). <i>A Meeting Transcription System for an Ad-Hoc
    Acoustic Sensor Network</i>. arXiv. <a href="https://doi.org/10.48550/ARXIV.2205.00944">https://doi.org/10.48550/ARXIV.2205.00944</a>
  bibtex: '@book{Gburrek_Boeddeker_von Neumann_Cord-Landwehr_Schmalenstroeer_Haeb-Umbach_2022,
    title={A Meeting Transcription System for an Ad-Hoc Acoustic Sensor Network},
    DOI={<a href="https://doi.org/10.48550/ARXIV.2205.00944">10.48550/ARXIV.2205.00944</a>},
    publisher={arXiv}, author={Gburrek, Tobias and Boeddeker, Christoph and von Neumann,
    Thilo and Cord-Landwehr, Tobias and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold},
    year={2022} }'
  chicago: Gburrek, Tobias, Christoph Boeddeker, Thilo von Neumann, Tobias Cord-Landwehr,
    Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. <i>A Meeting Transcription System
    for an Ad-Hoc Acoustic Sensor Network</i>. arXiv, 2022. <a href="https://doi.org/10.48550/ARXIV.2205.00944">https://doi.org/10.48550/ARXIV.2205.00944</a>.
  ieee: T. Gburrek, C. Boeddeker, T. von Neumann, T. Cord-Landwehr, J. Schmalenstroeer,
    and R. Haeb-Umbach, <i>A Meeting Transcription System for an Ad-Hoc Acoustic Sensor
    Network</i>. arXiv, 2022.
  mla: Gburrek, Tobias, et al. <i>A Meeting Transcription System for an Ad-Hoc Acoustic
    Sensor Network</i>. arXiv, 2022, doi:<a href="https://doi.org/10.48550/ARXIV.2205.00944">10.48550/ARXIV.2205.00944</a>.
  short: T. Gburrek, C. Boeddeker, T. von Neumann, T. Cord-Landwehr, J. Schmalenstroeer,
    R. Haeb-Umbach, A Meeting Transcription System for an Ad-Hoc Acoustic Sensor Network,
    arXiv, 2022.
date_created: 2022-10-18T11:10:58Z
date_updated: 2025-02-12T09:03:42Z
ddc:
- '004'
department:
- _id: '54'
doi: 10.48550/ARXIV.2205.00944
file:
- access_level: open_access
  content_type: application/pdf
  creator: tgburrek
  date_created: 2023-11-17T06:42:04Z
  date_updated: 2023-11-17T06:42:04Z
  file_id: '48992'
  file_name: meeting_transcription_22.pdf
  file_size: 199006
  relation: main_file
file_date_updated: 2023-11-17T06:42:04Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '508'
  grant_number: '448568305'
  name: Automatische Transkription von Gesprächssituationen
publisher: arXiv
status: public
title: A Meeting Transcription System for an Ad-Hoc Acoustic Sensor Network
type: misc
user_id: '40767'
year: '2022'
...
---
_id: '33954'
author:
- first_name: Christoph
  full_name: Boeddeker, Christoph
  id: '40767'
  last_name: Boeddeker
- first_name: Tobias
  full_name: Cord-Landwehr, Tobias
  id: '44393'
  last_name: Cord-Landwehr
- first_name: Thilo
  full_name: von Neumann, Thilo
  id: '49870'
  last_name: von Neumann
  orcid: https://orcid.org/0000-0002-7717-8670
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Boeddeker C, Cord-Landwehr T, von Neumann T, Haeb-Umbach R. An Initialization
    Scheme for Meeting Separation with Spatial Mixture Models. In: <i>Interspeech
    2022</i>. ISCA; 2022. doi:<a href="https://doi.org/10.21437/interspeech.2022-10929">10.21437/interspeech.2022-10929</a>'
  apa: Boeddeker, C., Cord-Landwehr, T., von Neumann, T., &#38; Haeb-Umbach, R. (2022).
    An Initialization Scheme for Meeting Separation with Spatial Mixture Models. <i>Interspeech
    2022</i>. <a href="https://doi.org/10.21437/interspeech.2022-10929">https://doi.org/10.21437/interspeech.2022-10929</a>
  bibtex: '@inproceedings{Boeddeker_Cord-Landwehr_von Neumann_Haeb-Umbach_2022, title={An
    Initialization Scheme for Meeting Separation with Spatial Mixture Models}, DOI={<a
    href="https://doi.org/10.21437/interspeech.2022-10929">10.21437/interspeech.2022-10929</a>},
    booktitle={Interspeech 2022}, publisher={ISCA}, author={Boeddeker, Christoph and
    Cord-Landwehr, Tobias and von Neumann, Thilo and Haeb-Umbach, Reinhold}, year={2022}
    }'
  chicago: Boeddeker, Christoph, Tobias Cord-Landwehr, Thilo von Neumann, and Reinhold
    Haeb-Umbach. “An Initialization Scheme for Meeting Separation with Spatial Mixture
    Models.” In <i>Interspeech 2022</i>. ISCA, 2022. <a href="https://doi.org/10.21437/interspeech.2022-10929">https://doi.org/10.21437/interspeech.2022-10929</a>.
  ieee: 'C. Boeddeker, T. Cord-Landwehr, T. von Neumann, and R. Haeb-Umbach, “An Initialization
    Scheme for Meeting Separation with Spatial Mixture Models,” 2022, doi: <a href="https://doi.org/10.21437/interspeech.2022-10929">10.21437/interspeech.2022-10929</a>.'
  mla: Boeddeker, Christoph, et al. “An Initialization Scheme for Meeting Separation
    with Spatial Mixture Models.” <i>Interspeech 2022</i>, ISCA, 2022, doi:<a href="https://doi.org/10.21437/interspeech.2022-10929">10.21437/interspeech.2022-10929</a>.
  short: 'C. Boeddeker, T. Cord-Landwehr, T. von Neumann, R. Haeb-Umbach, in: Interspeech
    2022, ISCA, 2022.'
date_created: 2022-10-28T10:53:56Z
date_updated: 2025-02-12T09:06:56Z
department:
- _id: '54'
doi: 10.21437/interspeech.2022-10929
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.isca-archive.org/interspeech_2022/boeddeker22_interspeech.pdf
oa: '1'
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '508'
  grant_number: '448568305'
  name: Automatische Transkription von Gesprächssituationen
publication: Interspeech 2022
publication_status: published
publisher: ISCA
status: public
title: An Initialization Scheme for Meeting Separation with Spatial Mixture Models
type: conference
user_id: '40767'
year: '2022'
...
---
_id: '33958'
abstract:
- lang: eng
  text: Recent speaker diarization studies showed that integration of end-to-end neural
    diarization (EEND) and clustering-based diarization is a promising approach for
    achieving state-of-the-art performance on various tasks. Such an approach first
    divides an observed signal into fixed-length segments, then performs {\it segment-level}
    local diarization based on an EEND module, and merges the segment-level results
    via clustering to form a final global diarization result. The segmentation is
    done to limit the number of speakers in each segment since the current EEND cannot
    handle a large number of speakers. In this paper, we argue that such an approach
    involving the segmentation has several issues; for example, it inevitably faces
    a dilemma that larger segment sizes increase both the context available for enhancing
    the performance and the number of speakers for the local EEND module to handle.
    To resolve such a problem, this paper proposes a novel framework that performs
    diarization without segmentation. However, it can still handle challenging data
    containing many speakers and a significant amount of overlapping speech. The proposed
    method can take an entire meeting for inference and perform {\it utterance-by-utterance}
    diarization that clusters utterance activities in terms of speakers. To this end,
    we leverage a neural network training scheme called Graph-PIT proposed recently
    for neural source separation. Experiments with simulated active-meeting-like data
    and CALLHOME data show the superiority of the proposed approach over the conventional
    methods.
author:
- first_name: Keisuke
  full_name: Kinoshita, Keisuke
  last_name: Kinoshita
- first_name: Thilo
  full_name: von Neumann, Thilo
  id: '49870'
  last_name: von Neumann
  orcid: https://orcid.org/0000-0002-7717-8670
- first_name: Marc
  full_name: Delcroix, Marc
  last_name: Delcroix
- first_name: Christoph
  full_name: Boeddeker, Christoph
  id: '40767'
  last_name: Boeddeker
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Kinoshita K, von Neumann T, Delcroix M, Boeddeker C, Haeb-Umbach R. Utterance-by-utterance
    overlap-aware neural diarization with Graph-PIT. In: <i>Proc. Interspeech 2022</i>.
    ISCA; 2022:1486-1490. doi:<a href="https://doi.org/10.21437/Interspeech.2022-11408">10.21437/Interspeech.2022-11408</a>'
  apa: Kinoshita, K., von Neumann, T., Delcroix, M., Boeddeker, C., &#38; Haeb-Umbach,
    R. (2022). Utterance-by-utterance overlap-aware neural diarization with Graph-PIT.
    <i>Proc. Interspeech 2022</i>, 1486–1490. <a href="https://doi.org/10.21437/Interspeech.2022-11408">https://doi.org/10.21437/Interspeech.2022-11408</a>
  bibtex: '@inproceedings{Kinoshita_von Neumann_Delcroix_Boeddeker_Haeb-Umbach_2022,
    title={Utterance-by-utterance overlap-aware neural diarization with Graph-PIT},
    DOI={<a href="https://doi.org/10.21437/Interspeech.2022-11408">10.21437/Interspeech.2022-11408</a>},
    booktitle={Proc. Interspeech 2022}, publisher={ISCA}, author={Kinoshita, Keisuke
    and von Neumann, Thilo and Delcroix, Marc and Boeddeker, Christoph and Haeb-Umbach,
    Reinhold}, year={2022}, pages={1486–1490} }'
  chicago: Kinoshita, Keisuke, Thilo von Neumann, Marc Delcroix, Christoph Boeddeker,
    and Reinhold Haeb-Umbach. “Utterance-by-Utterance Overlap-Aware Neural Diarization
    with Graph-PIT.” In <i>Proc. Interspeech 2022</i>, 1486–90. ISCA, 2022. <a href="https://doi.org/10.21437/Interspeech.2022-11408">https://doi.org/10.21437/Interspeech.2022-11408</a>.
  ieee: 'K. Kinoshita, T. von Neumann, M. Delcroix, C. Boeddeker, and R. Haeb-Umbach,
    “Utterance-by-utterance overlap-aware neural diarization with Graph-PIT,” in <i>Proc.
    Interspeech 2022</i>, 2022, pp. 1486–1490, doi: <a href="https://doi.org/10.21437/Interspeech.2022-11408">10.21437/Interspeech.2022-11408</a>.'
  mla: Kinoshita, Keisuke, et al. “Utterance-by-Utterance Overlap-Aware Neural Diarization
    with Graph-PIT.” <i>Proc. Interspeech 2022</i>, ISCA, 2022, pp. 1486–90, doi:<a
    href="https://doi.org/10.21437/Interspeech.2022-11408">10.21437/Interspeech.2022-11408</a>.
  short: 'K. Kinoshita, T. von Neumann, M. Delcroix, C. Boeddeker, R. Haeb-Umbach,
    in: Proc. Interspeech 2022, ISCA, 2022, pp. 1486–1490.'
conference:
  name: Interspeech 2022
date_created: 2022-10-28T12:07:57Z
date_updated: 2025-02-12T09:09:05Z
department:
- _id: '54'
doi: 10.21437/Interspeech.2022-11408
language:
- iso: eng
main_file_link:
- url: https://www.isca-archive.org/interspeech_2022/kinoshita22_interspeech.pdf
page: 1486-1490
publication: Proc. Interspeech 2022
publication_status: published
publisher: ISCA
quality_controlled: '1'
status: public
title: Utterance-by-utterance overlap-aware neural diarization with Graph-PIT
type: conference
user_id: '40767'
year: '2022'
...
---
_id: '32247'
author:
- first_name: Milad
  full_name: Alshomary, Milad
  id: '73059'
  last_name: Alshomary
- first_name: Jonas
  full_name: Rieskamp, Jonas
  id: '77643'
  last_name: Rieskamp
- first_name: Henning
  full_name: Wachsmuth, Henning
  id: '3900'
  last_name: Wachsmuth
citation:
  ama: 'Alshomary M, Rieskamp J, Wachsmuth H. Generating Contrastive Snippets for
    Argument Search. In: <i>Proceedings of the 9th International Conference on Computational
    Models of Argument</i>. ; 2022:21-31. doi:<a href="http://dx.doi.org/10.3233/FAIA220138">http://dx.doi.org/10.3233/FAIA220138</a>'
  apa: Alshomary, M., Rieskamp, J., &#38; Wachsmuth, H. (2022). Generating Contrastive
    Snippets for Argument Search. <i>Proceedings of the 9th International Conference
    on Computational Models of Argument</i>, 21–31. <a href="http://dx.doi.org/10.3233/FAIA220138">http://dx.doi.org/10.3233/FAIA220138</a>
  bibtex: '@inproceedings{Alshomary_Rieskamp_Wachsmuth_2022, title={Generating Contrastive
    Snippets for Argument Search}, DOI={<a href="http://dx.doi.org/10.3233/FAIA220138">http://dx.doi.org/10.3233/FAIA220138</a>},
    booktitle={Proceedings of the 9th International Conference on Computational Models
    of Argument}, author={Alshomary, Milad and Rieskamp, Jonas and Wachsmuth, Henning},
    year={2022}, pages={21–31} }'
  chicago: Alshomary, Milad, Jonas Rieskamp, and Henning Wachsmuth. “Generating Contrastive
    Snippets for Argument Search.” In <i>Proceedings of the 9th International Conference
    on Computational Models of Argument</i>, 21–31, 2022. <a href="http://dx.doi.org/10.3233/FAIA220138">http://dx.doi.org/10.3233/FAIA220138</a>.
  ieee: 'M. Alshomary, J. Rieskamp, and H. Wachsmuth, “Generating Contrastive Snippets
    for Argument Search,” in <i>Proceedings of the 9th International Conference on
    Computational Models of Argument</i>, 2022, pp. 21–31, doi: <a href="http://dx.doi.org/10.3233/FAIA220138">http://dx.doi.org/10.3233/FAIA220138</a>.'
  mla: Alshomary, Milad, et al. “Generating Contrastive Snippets for Argument Search.”
    <i>Proceedings of the 9th International Conference on Computational Models of
    Argument</i>, 2022, pp. 21–31, doi:<a href="http://dx.doi.org/10.3233/FAIA220138">http://dx.doi.org/10.3233/FAIA220138</a>.
  short: 'M. Alshomary, J. Rieskamp, H. Wachsmuth, in: Proceedings of the 9th International
    Conference on Computational Models of Argument, 2022, pp. 21–31.'
date_created: 2022-06-28T09:03:30Z
date_updated: 2025-02-20T08:22:16Z
department:
- _id: '600'
- _id: '660'
doi: http://dx.doi.org/10.3233/FAIA220138
language:
- iso: eng
page: 21 - 31
project:
- _id: '118'
  name: 'TRR 318 - INF: TRR 318 - Project Area INF'
publication: Proceedings of the 9th International Conference on Computational Models
  of Argument
status: public
title: Generating Contrastive Snippets for Argument Search
type: conference
user_id: '3900'
year: '2022'
...
---
_id: '30840'
author:
- first_name: Milad
  full_name: Alshomary, Milad
  id: '73059'
  last_name: Alshomary
- first_name: Roxanne
  full_name: El Baff, Roxanne
  last_name: El Baff
- first_name: Timon
  full_name: Gurcke, Timon
  id: '52174'
  last_name: Gurcke
- first_name: Henning
  full_name: Wachsmuth, Henning
  id: '3900'
  last_name: Wachsmuth
citation:
  ama: 'Alshomary M, El Baff R, Gurcke T, Wachsmuth H. The Moral Debater: A Study
    on the Computational Generation of Morally Framed Arguments. In: <i>Proceedings
    of the 60th Annual Meeting of the Association for Computational Linguistics</i>.
    ; 2022:8782-8797.'
  apa: 'Alshomary, M., El Baff, R., Gurcke, T., &#38; Wachsmuth, H. (2022). The Moral
    Debater: A Study on the Computational Generation of Morally Framed Arguments.
    <i>Proceedings of the 60th Annual Meeting of the Association for Computational
    Linguistics</i>, 8782–8797.'
  bibtex: '@inproceedings{Alshomary_El Baff_Gurcke_Wachsmuth_2022, title={The Moral
    Debater: A Study on the Computational Generation of Morally Framed Arguments},
    booktitle={Proceedings of the 60th Annual Meeting of the Association for Computational
    Linguistics}, author={Alshomary, Milad and El Baff, Roxanne and Gurcke, Timon
    and Wachsmuth, Henning}, year={2022}, pages={8782–8797} }'
  chicago: 'Alshomary, Milad, Roxanne El Baff, Timon Gurcke, and Henning Wachsmuth.
    “The Moral Debater: A Study on the Computational Generation of Morally Framed
    Arguments.” In <i>Proceedings of the 60th Annual Meeting of the Association for
    Computational Linguistics</i>, 8782–97, 2022.'
  ieee: 'M. Alshomary, R. El Baff, T. Gurcke, and H. Wachsmuth, “The Moral Debater:
    A Study on the Computational Generation of Morally Framed Arguments,” in <i>Proceedings
    of the 60th Annual Meeting of the Association for Computational Linguistics</i>,
    2022, pp. 8782–8797.'
  mla: 'Alshomary, Milad, et al. “The Moral Debater: A Study on the Computational
    Generation of Morally Framed Arguments.” <i>Proceedings of the 60th Annual Meeting
    of the Association for Computational Linguistics</i>, 2022, pp. 8782–97.'
  short: 'M. Alshomary, R. El Baff, T. Gurcke, H. Wachsmuth, in: Proceedings of the
    60th Annual Meeting of the Association for Computational Linguistics, 2022, pp.
    8782–8797.'
date_created: 2022-04-06T14:05:45Z
date_updated: 2025-02-20T08:22:46Z
department:
- _id: '600'
- _id: '660'
language:
- iso: eng
page: 8782 - 8797
project:
- _id: '118'
  name: 'TRR 318 - INF: TRR 318 - Project Area INF'
publication: Proceedings of the 60th Annual Meeting of the Association for Computational
  Linguistics
status: public
title: 'The Moral Debater: A Study on the Computational Generation of Morally Framed
  Arguments'
type: conference
user_id: '3900'
year: '2022'
...
---
_id: '31805'
author:
- first_name: Stephan
  full_name: Kruse, Stephan
  id: '38254'
  last_name: Kruse
- first_name: Meysam
  full_name: Bahmanian, Meysam
  id: '69233'
  last_name: Bahmanian
- first_name: Saeed
  full_name: Fard, Saeed
  id: '88494'
  last_name: Fard
- first_name: Marc-Michael
  full_name: Meinecke, Marc-Michael
  last_name: Meinecke
- first_name: Heiko G.
  full_name: Kurz, Heiko G.
  last_name: Kurz
- first_name: Christoph
  full_name: Scheytt, Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
citation:
  ama: 'Kruse S, Bahmanian M, Fard S, Meinecke M-M, Kurz HG, Scheytt C. A Low Phase
    Noise 77 GHz Frequency Synthesizer for Long Range Radar. In: <i>European Radar
    Conference (EuRAD)</i>. ; 2022. doi:<a href="https://doi.org/10.23919/EuRAD54643.2022.9924677">10.23919/EuRAD54643.2022.9924677</a>'
  apa: Kruse, S., Bahmanian, M., Fard, S., Meinecke, M.-M., Kurz, H. G., &#38; Scheytt,
    C. (2022). A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar.
    <i>European Radar Conference (EuRAD)</i>. <a href="https://doi.org/10.23919/EuRAD54643.2022.9924677">https://doi.org/10.23919/EuRAD54643.2022.9924677</a>
  bibtex: '@inproceedings{Kruse_Bahmanian_Fard_Meinecke_Kurz_Scheytt_2022, place={Milan,
    Italy}, title={A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar},
    DOI={<a href="https://doi.org/10.23919/EuRAD54643.2022.9924677">10.23919/EuRAD54643.2022.9924677</a>},
    booktitle={European Radar Conference (EuRAD)}, author={Kruse, Stephan and Bahmanian,
    Meysam and Fard, Saeed and Meinecke, Marc-Michael and Kurz, Heiko G. and Scheytt,
    Christoph}, year={2022} }'
  chicago: Kruse, Stephan, Meysam Bahmanian, Saeed Fard, Marc-Michael Meinecke, Heiko
    G. Kurz, and Christoph Scheytt. “A Low Phase Noise 77 GHz Frequency Synthesizer
    for Long Range Radar.” In <i>European Radar Conference (EuRAD)</i>. Milan, Italy,
    2022. <a href="https://doi.org/10.23919/EuRAD54643.2022.9924677">https://doi.org/10.23919/EuRAD54643.2022.9924677</a>.
  ieee: 'S. Kruse, M. Bahmanian, S. Fard, M.-M. Meinecke, H. G. Kurz, and C. Scheytt,
    “A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar,” 2022, doi:
    <a href="https://doi.org/10.23919/EuRAD54643.2022.9924677">10.23919/EuRAD54643.2022.9924677</a>.'
  mla: Kruse, Stephan, et al. “A Low Phase Noise 77 GHz Frequency Synthesizer for
    Long Range Radar.” <i>European Radar Conference (EuRAD)</i>, 2022, doi:<a href="https://doi.org/10.23919/EuRAD54643.2022.9924677">10.23919/EuRAD54643.2022.9924677</a>.
  short: 'S. Kruse, M. Bahmanian, S. Fard, M.-M. Meinecke, H.G. Kurz, C. Scheytt,
    in: European Radar Conference (EuRAD), Milan, Italy, 2022.'
conference:
  end_date: 2022.09.30
  start_date: 2022.09.28
date_created: 2022-06-08T08:35:46Z
date_updated: 2025-02-25T05:52:35Z
department:
- _id: '58'
doi: 10.23919/EuRAD54643.2022.9924677
language:
- iso: eng
place: Milan, Italy
publication: European Radar Conference (EuRAD)
status: public
title: A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar
type: conference
user_id: '38254'
year: '2022'
...
---
_id: '29770'
author:
- first_name: Saed
  full_name: Abughannam, Saed
  id: '37628'
  last_name: Abughannam
- first_name: Stephan
  full_name: Kruse, Stephan
  id: '38254'
  last_name: Kruse
- first_name: Mohammed
  full_name: Iftekhar, Mohammed
  id: '47944'
  last_name: Iftekhar
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Abughannam S, Kruse S, Iftekhar M, Scheytt JC. Design and Measurements of
    a Low-power Low-Date-rate Direct-detection Wireless Receiver with Improved Co-channel
    Interference Robustness. In: <i>German Microwave Conference 2022 (GeMiC 2022)</i>.
    ; 2022.'
  apa: Abughannam, S., Kruse, S., Iftekhar, M., &#38; Scheytt, J. C. (2022). Design
    and Measurements of a Low-power Low-Date-rate Direct-detection Wireless Receiver
    with Improved Co-channel Interference Robustness. <i>German Microwave Conference
    2022 (GeMiC 2022)</i>.
  bibtex: '@inproceedings{Abughannam_Kruse_Iftekhar_Scheytt_2022, place={Ulm, Germany},
    title={Design and Measurements of a Low-power Low-Date-rate Direct-detection Wireless
    Receiver with Improved Co-channel Interference Robustness}, booktitle={German
    Microwave Conference 2022 (GeMiC 2022)}, author={Abughannam, Saed and Kruse, Stephan
    and Iftekhar, Mohammed and Scheytt, J. Christoph}, year={2022} }'
  chicago: Abughannam, Saed, Stephan Kruse, Mohammed Iftekhar, and J. Christoph Scheytt.
    “Design and Measurements of a Low-Power Low-Date-Rate Direct-Detection Wireless
    Receiver with Improved Co-Channel Interference Robustness.” In <i>German Microwave
    Conference 2022 (GeMiC 2022)</i>. Ulm, Germany, 2022.
  ieee: S. Abughannam, S. Kruse, M. Iftekhar, and J. C. Scheytt, “Design and Measurements
    of a Low-power Low-Date-rate Direct-detection Wireless Receiver with Improved
    Co-channel Interference Robustness,” 2022.
  mla: Abughannam, Saed, et al. “Design and Measurements of a Low-Power Low-Date-Rate
    Direct-Detection Wireless Receiver with Improved Co-Channel Interference Robustness.”
    <i>German Microwave Conference 2022 (GeMiC 2022)</i>, 2022.
  short: 'S. Abughannam, S. Kruse, M. Iftekhar, J.C. Scheytt, in: German Microwave
    Conference 2022 (GeMiC 2022), Ulm, Germany, 2022.'
conference:
  end_date: 2022.05.18
  start_date: 2022.05.16
date_created: 2022-02-07T14:05:19Z
date_updated: 2025-02-25T06:02:05Z
department:
- _id: '58'
language:
- iso: eng
place: Ulm, Germany
publication: German Microwave Conference 2022 (GeMiC 2022)
related_material:
  link:
  - relation: research_paper
    url: https://ieeexplore.ieee.org/document/9783610
status: public
title: Design and Measurements of a Low-power Low-Date-rate Direct-detection Wireless
  Receiver with Improved Co-channel Interference Robustness
type: conference
user_id: '38254'
year: '2022'
...
---
_id: '34232'
abstract:
- lang: eng
  text: <jats:p>In this paper, the theory of phase-locking of a microwave oscillator
    on the interharmonics, i.e. non-integer harmonics, of the repetition rate of the
    optical pulse train of a mode-locked laser (MLL) is developed. A balanced optical
    microwave phase detector (BOMPD) is implemented using a balanced Mach-Zehnder
    modulator and is employed to discriminate the phase difference between the envelope
    of the optical pulses and the microwave oscillator. It is shown mathematically
    that the inherent nonlinear properties of BOMPD with respect to the microwave
    excitation amplitude can be used for interharmonic locking. The characteristic
    functions of the phase detector for interharmonic locking are derived analytically
    and are compared with the measurement results. An opto-electronic phase-locked
    loop (OEPLL) is demonstrated whose output frequency locks on interharmonics of
    the MLL repetition rate when an appropriate modulator bias and sufficient RF amplitude
    are applied. Thus, for the first time theory and experiment of reliable locking
    on interharmonics of the repetition rate of a MLL are presented.</jats:p>
article_number: '7763'
author:
- first_name: Meysam
  full_name: Bahmanian, Meysam
  id: '69233'
  last_name: Bahmanian
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
citation:
  ama: Bahmanian M, Kress C, Scheytt JC. Locking of microwave oscillators on the interharmonics
    of mode-locked laser signals. <i>Optics Express</i>. 2022;30(5). doi:<a href="https://doi.org/10.1364/oe.451894">10.1364/oe.451894</a>
  apa: Bahmanian, M., Kress, C., &#38; Scheytt, J. C. (2022). Locking of microwave
    oscillators on the interharmonics of mode-locked laser signals. <i>Optics Express</i>,
    <i>30</i>(5), Article 7763. <a href="https://doi.org/10.1364/oe.451894">https://doi.org/10.1364/oe.451894</a>
  bibtex: '@article{Bahmanian_Kress_Scheytt_2022, title={Locking of microwave oscillators
    on the interharmonics of mode-locked laser signals}, volume={30}, DOI={<a href="https://doi.org/10.1364/oe.451894">10.1364/oe.451894</a>},
    number={57763}, journal={Optics Express}, publisher={Optica Publishing Group},
    author={Bahmanian, Meysam and Kress, Christian and Scheytt, J. Christoph}, year={2022}
    }'
  chicago: Bahmanian, Meysam, Christian Kress, and J. Christoph Scheytt. “Locking
    of Microwave Oscillators on the Interharmonics of Mode-Locked Laser Signals.”
    <i>Optics Express</i> 30, no. 5 (2022). <a href="https://doi.org/10.1364/oe.451894">https://doi.org/10.1364/oe.451894</a>.
  ieee: 'M. Bahmanian, C. Kress, and J. C. Scheytt, “Locking of microwave oscillators
    on the interharmonics of mode-locked laser signals,” <i>Optics Express</i>, vol.
    30, no. 5, Art. no. 7763, 2022, doi: <a href="https://doi.org/10.1364/oe.451894">10.1364/oe.451894</a>.'
  mla: Bahmanian, Meysam, et al. “Locking of Microwave Oscillators on the Interharmonics
    of Mode-Locked Laser Signals.” <i>Optics Express</i>, vol. 30, no. 5, 7763, Optica
    Publishing Group, 2022, doi:<a href="https://doi.org/10.1364/oe.451894">10.1364/oe.451894</a>.
  short: M. Bahmanian, C. Kress, J.C. Scheytt, Optics Express 30 (2022).
date_created: 2022-12-06T10:30:21Z
date_updated: 2025-03-10T13:27:46Z
department:
- _id: '58'
doi: 10.1364/oe.451894
intvolume: '        30'
issue: '5'
language:
- iso: eng
publication: Optics Express
publication_identifier:
  issn:
  - 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Locking of microwave oscillators on the interharmonics of mode-locked laser
  signals
type: journal_article
user_id: '69233'
volume: 30
year: '2022'
...
---
_id: '34233'
author:
- first_name: Karanveer
  full_name: Singh, Karanveer
  last_name: Singh
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Younus
  full_name: Mandalawi, Younus
  last_name: Mandalawi
- first_name: Arijit
  full_name: Misra, Arijit
  last_name: Misra
- first_name: Stefan
  full_name: Preussler, Stefan
  last_name: Preussler
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
- first_name: Thomas
  full_name: Schneider, Thomas
  last_name: Schneider
citation:
  ama: 'Singh K, Kress C, Mandalawi Y, et al. Analysis of the effect of jitter and
    non-idealities on photonic digital-to-analog converters based on Nyquist pulses.
    In: Li G, Nakajima K, eds. <i>Next-Generation Optical Communication: Components,
    Sub-Systems, and Systems XI</i>. SPIE; 2022. doi:<a href="https://doi.org/10.1117/12.2609501">10.1117/12.2609501</a>'
  apa: 'Singh, K., Kress, C., Mandalawi, Y., Misra, A., Preussler, S., Scheytt, J.
    C., &#38; Schneider, T. (2022). Analysis of the effect of jitter and non-idealities
    on photonic digital-to-analog converters based on Nyquist pulses. In G. Li &#38;
    K. Nakajima (Eds.), <i>Next-Generation Optical Communication: Components, Sub-Systems,
    and Systems XI</i>. SPIE. <a href="https://doi.org/10.1117/12.2609501">https://doi.org/10.1117/12.2609501</a>'
  bibtex: '@inproceedings{Singh_Kress_Mandalawi_Misra_Preussler_Scheytt_Schneider_2022,
    title={Analysis of the effect of jitter and non-idealities on photonic digital-to-analog
    converters based on Nyquist pulses}, DOI={<a href="https://doi.org/10.1117/12.2609501">10.1117/12.2609501</a>},
    booktitle={Next-Generation Optical Communication: Components, Sub-Systems, and
    Systems XI}, publisher={SPIE}, author={Singh, Karanveer and Kress, Christian and
    Mandalawi, Younus and Misra, Arijit and Preussler, Stefan and Scheytt, J. Christoph
    and Schneider, Thomas}, editor={Li, Guifang and Nakajima, Kazuhide}, year={2022}
    }'
  chicago: 'Singh, Karanveer, Christian Kress, Younus Mandalawi, Arijit Misra, Stefan
    Preussler, J. Christoph Scheytt, and Thomas Schneider. “Analysis of the Effect
    of Jitter and Non-Idealities on Photonic Digital-to-Analog Converters Based on
    Nyquist Pulses.” In <i>Next-Generation Optical Communication: Components, Sub-Systems,
    and Systems XI</i>, edited by Guifang Li and Kazuhide Nakajima. SPIE, 2022. <a
    href="https://doi.org/10.1117/12.2609501">https://doi.org/10.1117/12.2609501</a>.'
  ieee: 'K. Singh <i>et al.</i>, “Analysis of the effect of jitter and non-idealities
    on photonic digital-to-analog converters based on Nyquist pulses,” in <i>Next-Generation
    Optical Communication: Components, Sub-Systems, and Systems XI</i>, 2022, doi:
    <a href="https://doi.org/10.1117/12.2609501">10.1117/12.2609501</a>.'
  mla: 'Singh, Karanveer, et al. “Analysis of the Effect of Jitter and Non-Idealities
    on Photonic Digital-to-Analog Converters Based on Nyquist Pulses.” <i>Next-Generation
    Optical Communication: Components, Sub-Systems, and Systems XI</i>, edited by
    Guifang Li and Kazuhide Nakajima, SPIE, 2022, doi:<a href="https://doi.org/10.1117/12.2609501">10.1117/12.2609501</a>.'
  short: 'K. Singh, C. Kress, Y. Mandalawi, A. Misra, S. Preussler, J.C. Scheytt,
    T. Schneider, in: G. Li, K. Nakajima (Eds.), Next-Generation Optical Communication:
    Components, Sub-Systems, and Systems XI, SPIE, 2022.'
date_created: 2022-12-06T10:42:56Z
date_updated: 2025-07-02T12:19:17Z
department:
- _id: '58'
- _id: '230'
doi: 10.1117/12.2609501
editor:
- first_name: Guifang
  full_name: Li, Guifang
  last_name: Li
- first_name: Kazuhide
  full_name: Nakajima, Kazuhide
  last_name: Nakajima
language:
- iso: eng
project:
- _id: '302'
  grant_number: '403154102'
  name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
    DAC'
- _id: '299'
  grant_number: 13N14882
  name: 'NyPhE: NyPhE - Nyquist Silicon Photonics Engine'
publication: 'Next-Generation Optical Communication: Components, Sub-Systems, and
  Systems XI'
publication_status: published
publisher: SPIE
status: public
title: Analysis of the effect of jitter and non-idealities on photonic digital-to-analog
  converters based on Nyquist pulses
type: conference
user_id: '13256'
year: '2022'
...
---
_id: '34234'
author:
- first_name: Karanveer
  full_name: Singh, Karanveer
  last_name: Singh
- first_name: Janosch
  full_name: Meier, Janosch
  last_name: Meier
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Arijit
  full_name: Misra, Arijit
  last_name: Misra
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Stefan
  full_name: Preussler, Stefan
  last_name: Preussler
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
- first_name: Thomas
  full_name: Schneider, Thomas
  last_name: Schneider
citation:
  ama: 'Singh K, Meier J, Kress C, et al. Emulation of integrated high-bandwidth photonic
    AWG using low-speed electronics. In: Li G, Nakajima K, eds. <i>Next-Generation
    Optical Communication: Components, Sub-Systems, and Systems XI</i>. SPIE; 2022.
    doi:<a href="https://doi.org/10.1117/12.2609416">10.1117/12.2609416</a>'
  apa: 'Singh, K., Meier, J., Kress, C., Misra, A., Schwabe, T., Preussler, S., Scheytt,
    J. C., &#38; Schneider, T. (2022). Emulation of integrated high-bandwidth photonic
    AWG using low-speed electronics. In G. Li &#38; K. Nakajima (Eds.), <i>Next-Generation
    Optical Communication: Components, Sub-Systems, and Systems XI</i>. SPIE. <a href="https://doi.org/10.1117/12.2609416">https://doi.org/10.1117/12.2609416</a>'
  bibtex: '@inproceedings{Singh_Meier_Kress_Misra_Schwabe_Preussler_Scheytt_Schneider_2022,
    title={Emulation of integrated high-bandwidth photonic AWG using low-speed electronics},
    DOI={<a href="https://doi.org/10.1117/12.2609416">10.1117/12.2609416</a>}, booktitle={Next-Generation
    Optical Communication: Components, Sub-Systems, and Systems XI}, publisher={SPIE},
    author={Singh, Karanveer and Meier, Janosch and Kress, Christian and Misra, Arijit
    and Schwabe, Tobias and Preussler, Stefan and Scheytt, J. Christoph and Schneider,
    Thomas}, editor={Li, Guifang and Nakajima, Kazuhide}, year={2022} }'
  chicago: 'Singh, Karanveer, Janosch Meier, Christian Kress, Arijit Misra, Tobias
    Schwabe, Stefan Preussler, J. Christoph Scheytt, and Thomas Schneider. “Emulation
    of Integrated High-Bandwidth Photonic AWG Using Low-Speed Electronics.” In <i>Next-Generation
    Optical Communication: Components, Sub-Systems, and Systems XI</i>, edited by
    Guifang Li and Kazuhide Nakajima. SPIE, 2022. <a href="https://doi.org/10.1117/12.2609416">https://doi.org/10.1117/12.2609416</a>.'
  ieee: 'K. Singh <i>et al.</i>, “Emulation of integrated high-bandwidth photonic
    AWG using low-speed electronics,” in <i>Next-Generation Optical Communication:
    Components, Sub-Systems, and Systems XI</i>, 2022, doi: <a href="https://doi.org/10.1117/12.2609416">10.1117/12.2609416</a>.'
  mla: 'Singh, Karanveer, et al. “Emulation of Integrated High-Bandwidth Photonic
    AWG Using Low-Speed Electronics.” <i>Next-Generation Optical Communication: Components,
    Sub-Systems, and Systems XI</i>, edited by Guifang Li and Kazuhide Nakajima, SPIE,
    2022, doi:<a href="https://doi.org/10.1117/12.2609416">10.1117/12.2609416</a>.'
  short: 'K. Singh, J. Meier, C. Kress, A. Misra, T. Schwabe, S. Preussler, J.C. Scheytt,
    T. Schneider, in: G. Li, K. Nakajima (Eds.), Next-Generation Optical Communication:
    Components, Sub-Systems, and Systems XI, SPIE, 2022.'
date_created: 2022-12-06T10:56:24Z
date_updated: 2025-07-02T12:19:29Z
department:
- _id: '58'
- _id: '230'
doi: 10.1117/12.2609416
editor:
- first_name: Guifang
  full_name: Li, Guifang
  last_name: Li
- first_name: Kazuhide
  full_name: Nakajima, Kazuhide
  last_name: Nakajima
language:
- iso: eng
project:
- _id: '302'
  grant_number: '403154102'
  name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
    DAC'
- _id: '299'
  grant_number: 13N14882
  name: 'NyPhE: NyPhE - Nyquist Silicon Photonics Engine'
publication: 'Next-Generation Optical Communication: Components, Sub-Systems, and
  Systems XI'
publication_status: published
publisher: SPIE
status: public
title: Emulation of integrated high-bandwidth photonic AWG using low-speed electronics
type: conference
user_id: '13256'
year: '2022'
...
---
_id: '34235'
abstract:
- lang: eng
  text: <jats:p>We demonstrate for the first time, to the best of our knowledge, reconfigurable
    and real-time orthogonal time-domain detection of a high-bandwidth Nyquist signal
    with a low-bandwidth silicon photonics Mach-Zehnder modulator based receiver.
    As the Nyquist signal has a rectangular bandwidth, it can be multiplexed in the
    wavelength domain without any guardband as a part of a Nyquist-WDM superchannel.
    These superchannels can be additionally multiplexed in space and polarization.
    Thus, the presented demonstration can open a new possibility for the detection
    of multidimensional parallel data signals with silicon photonics. No external
    pulse source is needed for the receiver, and frequency-time coherence is used
    to sample the incoming Nyquist signal with orthogonal sinc-shaped Nyquist pulse
    sequences. All parameters are completely tunable in the electrical domain. The
    feasibility of the scheme is demonstrated through a proof-of-concept experiment
    over the entire C-band (1530 nm–1560 nm), employing a 24 Gbaud Nyquist QPSK signal
    due to experimental constraints on the transmitter side electronics. However,
    the silicon Mach-Zehnder modulator with a 3-dB bandwidth of only 16 GHz can process
    Nyquist signals of 90 GHz optical bandwidth, suggesting a possibility to detect
    symbol rates up to 90 GBd in an integrated Nyquist receiver.</jats:p>
article_number: '13776'
author:
- first_name: Arijit
  full_name: Misra, Arijit
  last_name: Misra
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Karanveer
  full_name: Singh, Karanveer
  last_name: Singh
- first_name: Janosch
  full_name: Meier, Janosch
  last_name: Meier
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Stefan
  full_name: Preussler, Stefan
  last_name: Preussler
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
- first_name: Thomas
  full_name: Schneider, Thomas
  last_name: Schneider
citation:
  ama: Misra A, Kress C, Singh K, et al. Reconfigurable and real-time high-bandwidth
    Nyquist signal detection with low-bandwidth in silicon photonics. <i>Optics Express</i>.
    2022;30(8). doi:<a href="https://doi.org/10.1364/oe.454163">10.1364/oe.454163</a>
  apa: Misra, A., Kress, C., Singh, K., Meier, J., Schwabe, T., Preussler, S., Scheytt,
    J. C., &#38; Schneider, T. (2022). Reconfigurable and real-time high-bandwidth
    Nyquist signal detection with low-bandwidth in silicon photonics. <i>Optics Express</i>,
    <i>30</i>(8), Article 13776. <a href="https://doi.org/10.1364/oe.454163">https://doi.org/10.1364/oe.454163</a>
  bibtex: '@article{Misra_Kress_Singh_Meier_Schwabe_Preussler_Scheytt_Schneider_2022,
    title={Reconfigurable and real-time high-bandwidth Nyquist signal detection with
    low-bandwidth in silicon photonics}, volume={30}, DOI={<a href="https://doi.org/10.1364/oe.454163">10.1364/oe.454163</a>},
    number={813776}, journal={Optics Express}, publisher={Optica Publishing Group},
    author={Misra, Arijit and Kress, Christian and Singh, Karanveer and Meier, Janosch
    and Schwabe, Tobias and Preussler, Stefan and Scheytt, J. Christoph and Schneider,
    Thomas}, year={2022} }'
  chicago: Misra, Arijit, Christian Kress, Karanveer Singh, Janosch Meier, Tobias
    Schwabe, Stefan Preussler, J. Christoph Scheytt, and Thomas Schneider. “Reconfigurable
    and Real-Time High-Bandwidth Nyquist Signal Detection with Low-Bandwidth in Silicon
    Photonics.” <i>Optics Express</i> 30, no. 8 (2022). <a href="https://doi.org/10.1364/oe.454163">https://doi.org/10.1364/oe.454163</a>.
  ieee: 'A. Misra <i>et al.</i>, “Reconfigurable and real-time high-bandwidth Nyquist
    signal detection with low-bandwidth in silicon photonics,” <i>Optics Express</i>,
    vol. 30, no. 8, Art. no. 13776, 2022, doi: <a href="https://doi.org/10.1364/oe.454163">10.1364/oe.454163</a>.'
  mla: Misra, Arijit, et al. “Reconfigurable and Real-Time High-Bandwidth Nyquist
    Signal Detection with Low-Bandwidth in Silicon Photonics.” <i>Optics Express</i>,
    vol. 30, no. 8, 13776, Optica Publishing Group, 2022, doi:<a href="https://doi.org/10.1364/oe.454163">10.1364/oe.454163</a>.
  short: A. Misra, C. Kress, K. Singh, J. Meier, T. Schwabe, S. Preussler, J.C. Scheytt,
    T. Schneider, Optics Express 30 (2022).
date_created: 2022-12-06T10:59:03Z
date_updated: 2025-07-02T12:19:40Z
department:
- _id: '58'
- _id: '230'
doi: 10.1364/oe.454163
intvolume: '        30'
issue: '8'
language:
- iso: eng
project:
- _id: '302'
  grant_number: '403154102'
  name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
    DAC'
- _id: '299'
  grant_number: 13N14882
  name: 'NyPhE: NyPhE - Nyquist Silicon Photonics Engine'
publication: Optics Express
publication_identifier:
  issn:
  - 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Reconfigurable and real-time high-bandwidth Nyquist signal detection with low-bandwidth
  in silicon photonics
type: journal_article
user_id: '13256'
volume: 30
year: '2022'
...
---
_id: '34236'
abstract:
- lang: eng
  text: <jats:p>We report for the first time, inter-symbol-interference (ISI) free
    demultiplexing of Nyquist optical time division multiplexed (OTDM) signals using
    a reconfigurable orthogonal sinc-pulse sampling enabled by silicon photonic Mach-Zehnder
    Modulators.</jats:p>
author:
- first_name: Arijit
  full_name: Misra, Arijit
  last_name: Misra
- first_name: Karanveer
  full_name: Singh, Karanveer
  last_name: Singh
- first_name: Janosch
  full_name: Meier, Janosch
  last_name: Meier
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Stefan
  full_name: Preussler, Stefan
  last_name: Preussler
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
- first_name: Thomas
  full_name: Schneider, Thomas
  last_name: Schneider
citation:
  ama: 'Misra A, Singh K, Meier J, et al. Flexible Time-Domain De-Multiplexing of
    Nyquist OTDM Channels by Orthogonal Sampling in Silicon Photonics. In: <i>Conference
    on Lasers and Electro-Optics</i>. Optica Publishing Group; 2022. doi:<a href="https://doi.org/10.1364/cleo_si.2022.sth5m.2">10.1364/cleo_si.2022.sth5m.2</a>'
  apa: Misra, A., Singh, K., Meier, J., Kress, C., Schwabe, T., Preussler, S., Scheytt,
    J. C., &#38; Schneider, T. (2022). Flexible Time-Domain De-Multiplexing of Nyquist
    OTDM Channels by Orthogonal Sampling in Silicon Photonics. <i>Conference on Lasers
    and Electro-Optics</i>. <a href="https://doi.org/10.1364/cleo_si.2022.sth5m.2">https://doi.org/10.1364/cleo_si.2022.sth5m.2</a>
  bibtex: '@inproceedings{Misra_Singh_Meier_Kress_Schwabe_Preussler_Scheytt_Schneider_2022,
    title={Flexible Time-Domain De-Multiplexing of Nyquist OTDM Channels by Orthogonal
    Sampling in Silicon Photonics}, DOI={<a href="https://doi.org/10.1364/cleo_si.2022.sth5m.2">10.1364/cleo_si.2022.sth5m.2</a>},
    booktitle={Conference on Lasers and Electro-Optics}, publisher={Optica Publishing
    Group}, author={Misra, Arijit and Singh, Karanveer and Meier, Janosch and Kress,
    Christian and Schwabe, Tobias and Preussler, Stefan and Scheytt, J. Christoph
    and Schneider, Thomas}, year={2022} }'
  chicago: Misra, Arijit, Karanveer Singh, Janosch Meier, Christian Kress, Tobias
    Schwabe, Stefan Preussler, J. Christoph Scheytt, and Thomas Schneider. “Flexible
    Time-Domain De-Multiplexing of Nyquist OTDM Channels by Orthogonal Sampling in
    Silicon Photonics.” In <i>Conference on Lasers and Electro-Optics</i>. Optica
    Publishing Group, 2022. <a href="https://doi.org/10.1364/cleo_si.2022.sth5m.2">https://doi.org/10.1364/cleo_si.2022.sth5m.2</a>.
  ieee: 'A. Misra <i>et al.</i>, “Flexible Time-Domain De-Multiplexing of Nyquist
    OTDM Channels by Orthogonal Sampling in Silicon Photonics,” 2022, doi: <a href="https://doi.org/10.1364/cleo_si.2022.sth5m.2">10.1364/cleo_si.2022.sth5m.2</a>.'
  mla: Misra, Arijit, et al. “Flexible Time-Domain De-Multiplexing of Nyquist OTDM
    Channels by Orthogonal Sampling in Silicon Photonics.” <i>Conference on Lasers
    and Electro-Optics</i>, Optica Publishing Group, 2022, doi:<a href="https://doi.org/10.1364/cleo_si.2022.sth5m.2">10.1364/cleo_si.2022.sth5m.2</a>.
  short: 'A. Misra, K. Singh, J. Meier, C. Kress, T. Schwabe, S. Preussler, J.C. Scheytt,
    T. Schneider, in: Conference on Lasers and Electro-Optics, Optica Publishing Group,
    2022.'
date_created: 2022-12-06T11:00:27Z
date_updated: 2025-07-02T12:20:13Z
department:
- _id: '58'
- _id: '230'
doi: 10.1364/cleo_si.2022.sth5m.2
language:
- iso: eng
project:
- _id: '302'
  grant_number: '403154102'
  name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
    DAC'
publication: Conference on Lasers and Electro-Optics
publication_status: published
publisher: Optica Publishing Group
status: public
title: Flexible Time-Domain De-Multiplexing of Nyquist OTDM Channels by Orthogonal
  Sampling in Silicon Photonics
type: conference
user_id: '13256'
year: '2022'
...
---
_id: '60369'
abstract:
- lang: eng
  text: '<jats:title>Abstract</jats:title><jats:p>Non‐linear optimization is essential
    to many areas of geometry processing research. However, when experimenting with
    different problem formulations or when prototyping new algorithms, a major practical
    obstacle is the need to figure out derivatives of objective functions, especially
    when second‐order derivatives are required. Deriving and manually implementing
    gradients and Hessians is both time‐consuming and error‐prone. Automatic differentiation
    techniques address this problem, but can introduce a diverse set of obstacles
    themselves, e.g. limiting the set of supported language features, imposing restrictions
    on a program''s control flow, incurring a significant run time overhead, or making
    it hard to exploit sparsity patterns common in geometry processing. We show that
    for many geometric problems, in particular on meshes, the simplest form of forward‐mode
    automatic differentiation is not only the most flexible, but also actually the
    most efficient choice. We introduce TinyAD: a lightweight C++ library that automatically
    computes gradients and Hessians, in particular of sparse problems, by differentiating
    small (tiny) sub‐problems. Its simplicity enables easy integration; no restrictions
    on, e.g., looping and branching are imposed. TinyAD provides the basic ingredients
    to quickly implement first and second order Newton‐style solvers, allowing for
    flexible adjustment of both problem formulations and solver details. By showcasing
    compact implementations of methods from parametrization, deformation, and direction
    field design, we demonstrate how TinyAD lowers the barrier to exploring non‐linear
    optimization techniques. This enables not only fast prototyping of new research
    ideas, but also improves replicability of existing algorithms in geometry processing.
    TinyAD is available to the community as an open source library.</jats:p>'
author:
- first_name: Patrick
  full_name: Schmidt, Patrick
  last_name: Schmidt
- first_name: Janis
  full_name: Born, Janis
  last_name: Born
- first_name: David
  full_name: Bommes, David
  last_name: Bommes
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
- first_name: Leif
  full_name: Kobbelt, Leif
  last_name: Kobbelt
citation:
  ama: 'Schmidt P, Born J, Bommes D, Campen M, Kobbelt L. TinyAD: Automatic Differentiation
    in Geometry Processing Made Simple. <i>Computer Graphics Forum</i>. 2022;41(5):113-124.
    doi:<a href="https://doi.org/10.1111/cgf.14607">10.1111/cgf.14607</a>'
  apa: 'Schmidt, P., Born, J., Bommes, D., Campen, M., &#38; Kobbelt, L. (2022). TinyAD:
    Automatic Differentiation in Geometry Processing Made Simple. <i>Computer Graphics
    Forum</i>, <i>41</i>(5), 113–124. <a href="https://doi.org/10.1111/cgf.14607">https://doi.org/10.1111/cgf.14607</a>'
  bibtex: '@article{Schmidt_Born_Bommes_Campen_Kobbelt_2022, title={TinyAD: Automatic
    Differentiation in Geometry Processing Made Simple}, volume={41}, DOI={<a href="https://doi.org/10.1111/cgf.14607">10.1111/cgf.14607</a>},
    number={5}, journal={Computer Graphics Forum}, publisher={Wiley}, author={Schmidt,
    Patrick and Born, Janis and Bommes, David and Campen, Marcel and Kobbelt, Leif},
    year={2022}, pages={113–124} }'
  chicago: 'Schmidt, Patrick, Janis Born, David Bommes, Marcel Campen, and Leif Kobbelt.
    “TinyAD: Automatic Differentiation in Geometry Processing Made Simple.” <i>Computer
    Graphics Forum</i> 41, no. 5 (2022): 113–24. <a href="https://doi.org/10.1111/cgf.14607">https://doi.org/10.1111/cgf.14607</a>.'
  ieee: 'P. Schmidt, J. Born, D. Bommes, M. Campen, and L. Kobbelt, “TinyAD: Automatic
    Differentiation in Geometry Processing Made Simple,” <i>Computer Graphics Forum</i>,
    vol. 41, no. 5, pp. 113–124, 2022, doi: <a href="https://doi.org/10.1111/cgf.14607">10.1111/cgf.14607</a>.'
  mla: 'Schmidt, Patrick, et al. “TinyAD: Automatic Differentiation in Geometry Processing
    Made Simple.” <i>Computer Graphics Forum</i>, vol. 41, no. 5, Wiley, 2022, pp.
    113–24, doi:<a href="https://doi.org/10.1111/cgf.14607">10.1111/cgf.14607</a>.'
  short: P. Schmidt, J. Born, D. Bommes, M. Campen, L. Kobbelt, Computer Graphics
    Forum 41 (2022) 113–124.
date_created: 2025-06-25T09:02:28Z
date_updated: 2025-07-14T12:47:14Z
department:
- _id: '969'
doi: 10.1111/cgf.14607
extern: '1'
intvolume: '        41'
issue: '5'
language:
- iso: eng
page: 113-124
publication: Computer Graphics Forum
publication_identifier:
  issn:
  - 0167-7055
  - 1467-8659
publication_status: published
publisher: Wiley
status: public
title: 'TinyAD: Automatic Differentiation in Geometry Processing Made Simple'
type: journal_article
user_id: '117512'
volume: 41
year: '2022'
...
---
_id: '60371'
abstract:
- lang: eng
  text: <jats:p>We describe a method for the generation of seamless surface parametrizations
    with guaranteed local injectivity and full control over holonomy. Previous methods
    guarantee only one of the two. Local injectivity is required to enable these parametrizations'
    use in applications such as surface quadrangulation and spline construction. Holonomy
    control is crucial to enable guidance or prescription of the parametrization's
    isocurves based on directional information, in particular from cross-fields or
    feature curves, and more generally to constrain the parametrization topologically.
    To this end we investigate the relation between cross-field topology and seamless
    parametrization topology. Leveraging previous results on locally injective parametrization
    and combining them with insights on this relation in terms of holonomy, we propose
    an algorithm that meets these requirements. A key component relies on the insight
    that arbitrary surface cut graphs, as required for global parametrization, can
    be homeomorphically modified to assume almost any set of turning numbers with
    respect to a given target cross-field.</jats:p>
alternative_title:
- global parameterization from prescribed holonomy signatures
author:
- first_name: Hanxiao
  full_name: Shen, Hanxiao
  last_name: Shen
- first_name: Leyi
  full_name: Zhu, Leyi
  last_name: Zhu
- first_name: Ryan
  full_name: Capouellez, Ryan
  last_name: Capouellez
- first_name: Daniele
  full_name: Panozzo, Daniele
  last_name: Panozzo
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
- first_name: Denis
  full_name: Zorin, Denis
  last_name: Zorin
citation:
  ama: Shen H, Zhu L, Capouellez R, Panozzo D, Campen M, Zorin D. Which cross fields
    can be quadrangulated? <i>ACM Transactions on Graphics</i>. 2022;41(4):1-12. doi:<a
    href="https://doi.org/10.1145/3528223.3530187">10.1145/3528223.3530187</a>
  apa: Shen, H., Zhu, L., Capouellez, R., Panozzo, D., Campen, M., &#38; Zorin, D.
    (2022). Which cross fields can be quadrangulated? <i>ACM Transactions on Graphics</i>,
    <i>41</i>(4), 1–12. <a href="https://doi.org/10.1145/3528223.3530187">https://doi.org/10.1145/3528223.3530187</a>
  bibtex: '@article{Shen_Zhu_Capouellez_Panozzo_Campen_Zorin_2022, title={Which cross
    fields can be quadrangulated?}, volume={41}, DOI={<a href="https://doi.org/10.1145/3528223.3530187">10.1145/3528223.3530187</a>},
    number={4}, journal={ACM Transactions on Graphics}, publisher={Association for
    Computing Machinery (ACM)}, author={Shen, Hanxiao and Zhu, Leyi and Capouellez,
    Ryan and Panozzo, Daniele and Campen, Marcel and Zorin, Denis}, year={2022}, pages={1–12}
    }'
  chicago: 'Shen, Hanxiao, Leyi Zhu, Ryan Capouellez, Daniele Panozzo, Marcel Campen,
    and Denis Zorin. “Which Cross Fields Can Be Quadrangulated?” <i>ACM Transactions
    on Graphics</i> 41, no. 4 (2022): 1–12. <a href="https://doi.org/10.1145/3528223.3530187">https://doi.org/10.1145/3528223.3530187</a>.'
  ieee: 'H. Shen, L. Zhu, R. Capouellez, D. Panozzo, M. Campen, and D. Zorin, “Which
    cross fields can be quadrangulated?,” <i>ACM Transactions on Graphics</i>, vol.
    41, no. 4, pp. 1–12, 2022, doi: <a href="https://doi.org/10.1145/3528223.3530187">10.1145/3528223.3530187</a>.'
  mla: Shen, Hanxiao, et al. “Which Cross Fields Can Be Quadrangulated?” <i>ACM Transactions
    on Graphics</i>, vol. 41, no. 4, Association for Computing Machinery (ACM), 2022,
    pp. 1–12, doi:<a href="https://doi.org/10.1145/3528223.3530187">10.1145/3528223.3530187</a>.
  short: H. Shen, L. Zhu, R. Capouellez, D. Panozzo, M. Campen, D. Zorin, ACM Transactions
    on Graphics 41 (2022) 1–12.
date_created: 2025-06-25T09:05:57Z
date_updated: 2025-07-14T12:47:19Z
department:
- _id: '969'
doi: 10.1145/3528223.3530187
extern: '1'
intvolume: '        41'
issue: '4'
language:
- iso: eng
page: 1-12
publication: ACM Transactions on Graphics
publication_identifier:
  issn:
  - 0730-0301
  - 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: Which cross fields can be quadrangulated?
type: journal_article
user_id: '117512'
volume: 41
year: '2022'
...
---
_id: '60366'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>The so‐called motorcycle graph has
    been employed in recent years for various purposes in the context of structured
    and aligned block decomposition of 2D shapes and 2‐manifold surfaces. Applications
    are in the fields of surface parametrization, spline space construction, semi‐structured
    quad mesh generation, or geometry data compression. We describe a generalization
    of this motorcycle graph concept to the three‐dimensional volumetric setting.
    Through careful extensions aware of topological intricacies of this higher‐dimensional
    setting, we are able to guarantee important block decomposition properties also
    in this case. We describe algorithms for the construction of this 3D motorcycle
    complex on the basis of either hexahedral meshes or seamless volumetric parametrizations.
    Its utility is illustrated on examples in hexahedral mesh generation and volumetric
    T‐spline construction.</jats:p>
author:
- first_name: Hendrik
  full_name: Brückler, Hendrik
  id: '115694'
  last_name: Brückler
- first_name: Ojaswi
  full_name: Gupta, Ojaswi
  last_name: Gupta
- first_name: Manish
  full_name: Mandad, Manish
  last_name: Mandad
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
citation:
  ama: Brückler H, Gupta O, Mandad M, Campen M. The 3D Motorcycle Complex for Structured
    Volume Decomposition. <i>Computer Graphics Forum</i>. 2022;41(2):221-235. doi:<a
    href="https://doi.org/10.1111/cgf.14470">10.1111/cgf.14470</a>
  apa: Brückler, H., Gupta, O., Mandad, M., &#38; Campen, M. (2022). The 3D Motorcycle
    Complex for Structured Volume Decomposition. <i>Computer Graphics Forum</i>, <i>41</i>(2),
    221–235. <a href="https://doi.org/10.1111/cgf.14470">https://doi.org/10.1111/cgf.14470</a>
  bibtex: '@article{Brückler_Gupta_Mandad_Campen_2022, title={The 3D Motorcycle Complex
    for Structured Volume Decomposition}, volume={41}, DOI={<a href="https://doi.org/10.1111/cgf.14470">10.1111/cgf.14470</a>},
    number={2}, journal={Computer Graphics Forum}, publisher={Wiley}, author={Brückler,
    Hendrik and Gupta, Ojaswi and Mandad, Manish and Campen, Marcel}, year={2022},
    pages={221–235} }'
  chicago: 'Brückler, Hendrik, Ojaswi Gupta, Manish Mandad, and Marcel Campen. “The
    3D Motorcycle Complex for Structured Volume Decomposition.” <i>Computer Graphics
    Forum</i> 41, no. 2 (2022): 221–35. <a href="https://doi.org/10.1111/cgf.14470">https://doi.org/10.1111/cgf.14470</a>.'
  ieee: 'H. Brückler, O. Gupta, M. Mandad, and M. Campen, “The 3D Motorcycle Complex
    for Structured Volume Decomposition,” <i>Computer Graphics Forum</i>, vol. 41,
    no. 2, pp. 221–235, 2022, doi: <a href="https://doi.org/10.1111/cgf.14470">10.1111/cgf.14470</a>.'
  mla: Brückler, Hendrik, et al. “The 3D Motorcycle Complex for Structured Volume
    Decomposition.” <i>Computer Graphics Forum</i>, vol. 41, no. 2, Wiley, 2022, pp.
    221–35, doi:<a href="https://doi.org/10.1111/cgf.14470">10.1111/cgf.14470</a>.
  short: H. Brückler, O. Gupta, M. Mandad, M. Campen, Computer Graphics Forum 41 (2022)
    221–235.
date_created: 2025-06-25T08:52:53Z
date_updated: 2025-07-14T12:47:02Z
department:
- _id: '969'
doi: 10.1111/cgf.14470
extern: '1'
intvolume: '        41'
issue: '2'
language:
- iso: eng
page: 221-235
publication: Computer Graphics Forum
publication_identifier:
  issn:
  - 0167-7055
  - 1467-8659
publication_status: published
publisher: Wiley
status: public
title: The 3D Motorcycle Complex for Structured Volume Decomposition
type: journal_article
user_id: '117512'
volume: 41
year: '2022'
...
---
_id: '60368'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>We present a reliable method to generate
    planar meshes of nonlinear rational triangular elements. The elements are guaranteed
    to be valid, i.e. defined by injective rational functions. The mesh is guaranteed
    to conform exactly, without geometric error, to arbitrary rational domain boundary
    and feature curves. The method generalizes the recent Bézier Guarding technique,
    which is applicable only to polynomial curves and elements. This generalization
    enables the accurate handling of practically important cases involving, for instance,
    circular or elliptic arcs and NURBS curves, which cannot be matched by polynomial
    elements. Furthermore, although many practical scenarios are concerned with rational
    functions of quadratic and cubic degree only, our method is fully general and
    supports arbitrary degree. We demonstrate the method on a variety of test cases.</jats:p>
author:
- first_name: Payam
  full_name: Khanteimouri, Payam
  last_name: Khanteimouri
- first_name: Manish
  full_name: Mandad, Manish
  last_name: Mandad
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
citation:
  ama: Khanteimouri P, Mandad M, Campen M. Rational Bézier Guarding. <i>Computer Graphics
    Forum</i>. 2022;41(5):89-99. doi:<a href="https://doi.org/10.1111/cgf.14605">10.1111/cgf.14605</a>
  apa: Khanteimouri, P., Mandad, M., &#38; Campen, M. (2022). Rational Bézier Guarding.
    <i>Computer Graphics Forum</i>, <i>41</i>(5), 89–99. <a href="https://doi.org/10.1111/cgf.14605">https://doi.org/10.1111/cgf.14605</a>
  bibtex: '@article{Khanteimouri_Mandad_Campen_2022, title={Rational Bézier Guarding},
    volume={41}, DOI={<a href="https://doi.org/10.1111/cgf.14605">10.1111/cgf.14605</a>},
    number={5}, journal={Computer Graphics Forum}, publisher={Wiley}, author={Khanteimouri,
    Payam and Mandad, Manish and Campen, Marcel}, year={2022}, pages={89–99} }'
  chicago: 'Khanteimouri, Payam, Manish Mandad, and Marcel Campen. “Rational Bézier
    Guarding.” <i>Computer Graphics Forum</i> 41, no. 5 (2022): 89–99. <a href="https://doi.org/10.1111/cgf.14605">https://doi.org/10.1111/cgf.14605</a>.'
  ieee: 'P. Khanteimouri, M. Mandad, and M. Campen, “Rational Bézier Guarding,” <i>Computer
    Graphics Forum</i>, vol. 41, no. 5, pp. 89–99, 2022, doi: <a href="https://doi.org/10.1111/cgf.14605">10.1111/cgf.14605</a>.'
  mla: Khanteimouri, Payam, et al. “Rational Bézier Guarding.” <i>Computer Graphics
    Forum</i>, vol. 41, no. 5, Wiley, 2022, pp. 89–99, doi:<a href="https://doi.org/10.1111/cgf.14605">10.1111/cgf.14605</a>.
  short: P. Khanteimouri, M. Mandad, M. Campen, Computer Graphics Forum 41 (2022)
    89–99.
date_created: 2025-06-25T08:56:35Z
date_updated: 2025-07-14T12:46:58Z
department:
- _id: '969'
doi: 10.1111/cgf.14605
extern: '1'
intvolume: '        41'
issue: '5'
language:
- iso: eng
page: 89-99
publication: Computer Graphics Forum
publication_identifier:
  issn:
  - 0167-7055
  - 1467-8659
publication_status: published
publisher: Wiley
status: public
title: Rational Bézier Guarding
type: journal_article
user_id: '117512'
volume: 41
year: '2022'
...
---
_id: '60363'
article_number: '102078'
author:
- first_name: Manish
  full_name: Mandad, Manish
  last_name: Mandad
- first_name: Ruizhi
  full_name: Chen, Ruizhi
  last_name: Chen
- first_name: David
  full_name: Bommes, David
  last_name: Bommes
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
citation:
  ama: Mandad M, Chen R, Bommes D, Campen M. Intrinsic mixed-integer polycubes for
    hexahedral meshing. <i>Computer Aided Geometric Design</i>. 2022;94. doi:<a href="https://doi.org/10.1016/j.cagd.2022.102078">10.1016/j.cagd.2022.102078</a>
  apa: Mandad, M., Chen, R., Bommes, D., &#38; Campen, M. (2022). Intrinsic mixed-integer
    polycubes for hexahedral meshing. <i>Computer Aided Geometric Design</i>, <i>94</i>,
    Article 102078. <a href="https://doi.org/10.1016/j.cagd.2022.102078">https://doi.org/10.1016/j.cagd.2022.102078</a>
  bibtex: '@article{Mandad_Chen_Bommes_Campen_2022, title={Intrinsic mixed-integer
    polycubes for hexahedral meshing}, volume={94}, DOI={<a href="https://doi.org/10.1016/j.cagd.2022.102078">10.1016/j.cagd.2022.102078</a>},
    number={102078}, journal={Computer Aided Geometric Design}, publisher={Elsevier
    BV}, author={Mandad, Manish and Chen, Ruizhi and Bommes, David and Campen, Marcel},
    year={2022} }'
  chicago: Mandad, Manish, Ruizhi Chen, David Bommes, and Marcel Campen. “Intrinsic
    Mixed-Integer Polycubes for Hexahedral Meshing.” <i>Computer Aided Geometric Design</i>
    94 (2022). <a href="https://doi.org/10.1016/j.cagd.2022.102078">https://doi.org/10.1016/j.cagd.2022.102078</a>.
  ieee: 'M. Mandad, R. Chen, D. Bommes, and M. Campen, “Intrinsic mixed-integer polycubes
    for hexahedral meshing,” <i>Computer Aided Geometric Design</i>, vol. 94, Art.
    no. 102078, 2022, doi: <a href="https://doi.org/10.1016/j.cagd.2022.102078">10.1016/j.cagd.2022.102078</a>.'
  mla: Mandad, Manish, et al. “Intrinsic Mixed-Integer Polycubes for Hexahedral Meshing.”
    <i>Computer Aided Geometric Design</i>, vol. 94, 102078, Elsevier BV, 2022, doi:<a
    href="https://doi.org/10.1016/j.cagd.2022.102078">10.1016/j.cagd.2022.102078</a>.
  short: M. Mandad, R. Chen, D. Bommes, M. Campen, Computer Aided Geometric Design
    94 (2022).
date_created: 2025-06-25T08:44:09Z
date_updated: 2025-07-14T12:47:12Z
department:
- _id: '969'
doi: 10.1016/j.cagd.2022.102078
extern: '1'
intvolume: '        94'
language:
- iso: eng
publication: Computer Aided Geometric Design
publication_identifier:
  issn:
  - 0167-8396
publication_status: published
publisher: Elsevier BV
status: public
title: Intrinsic mixed-integer polycubes for hexahedral meshing
type: journal_article
user_id: '117512'
volume: 94
year: '2022'
...
---
_id: '60365'
article_number: '102085'
author:
- first_name: Steffen
  full_name: Hinderink, Steffen
  id: '116615'
  last_name: Hinderink
- first_name: Manish
  full_name: Mandad, Manish
  last_name: Mandad
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
citation:
  ama: Hinderink S, Mandad M, Campen M. Angle-bounded 2D mesh simplification. <i>Computer
    Aided Geometric Design</i>. 2022;95. doi:<a href="https://doi.org/10.1016/j.cagd.2022.102085">10.1016/j.cagd.2022.102085</a>
  apa: Hinderink, S., Mandad, M., &#38; Campen, M. (2022). Angle-bounded 2D mesh simplification.
    <i>Computer Aided Geometric Design</i>, <i>95</i>, Article 102085. <a href="https://doi.org/10.1016/j.cagd.2022.102085">https://doi.org/10.1016/j.cagd.2022.102085</a>
  bibtex: '@article{Hinderink_Mandad_Campen_2022, title={Angle-bounded 2D mesh simplification},
    volume={95}, DOI={<a href="https://doi.org/10.1016/j.cagd.2022.102085">10.1016/j.cagd.2022.102085</a>},
    number={102085}, journal={Computer Aided Geometric Design}, publisher={Elsevier
    BV}, author={Hinderink, Steffen and Mandad, Manish and Campen, Marcel}, year={2022}
    }'
  chicago: Hinderink, Steffen, Manish Mandad, and Marcel Campen. “Angle-Bounded 2D
    Mesh Simplification.” <i>Computer Aided Geometric Design</i> 95 (2022). <a href="https://doi.org/10.1016/j.cagd.2022.102085">https://doi.org/10.1016/j.cagd.2022.102085</a>.
  ieee: 'S. Hinderink, M. Mandad, and M. Campen, “Angle-bounded 2D mesh simplification,”
    <i>Computer Aided Geometric Design</i>, vol. 95, Art. no. 102085, 2022, doi: <a
    href="https://doi.org/10.1016/j.cagd.2022.102085">10.1016/j.cagd.2022.102085</a>.'
  mla: Hinderink, Steffen, et al. “Angle-Bounded 2D Mesh Simplification.” <i>Computer
    Aided Geometric Design</i>, vol. 95, 102085, Elsevier BV, 2022, doi:<a href="https://doi.org/10.1016/j.cagd.2022.102085">10.1016/j.cagd.2022.102085</a>.
  short: S. Hinderink, M. Mandad, M. Campen, Computer Aided Geometric Design 95 (2022).
date_created: 2025-06-25T08:50:14Z
date_updated: 2025-07-14T12:47:05Z
department:
- _id: '969'
doi: 10.1016/j.cagd.2022.102085
extern: '1'
intvolume: '        95'
language:
- iso: eng
publication: Computer Aided Geometric Design
publication_identifier:
  issn:
  - 0167-8396
publication_status: published
publisher: Elsevier BV
status: public
title: Angle-bounded 2D mesh simplification
type: journal_article
user_id: '117512'
volume: 95
year: '2022'
...
---
_id: '60372'
abstract:
- lang: eng
  text: <jats:p>Developments in the field of parametrization-based quad mesh generation
    on surfaces have been impactful over the past decade. In this context, an important
    advance has been the replacement of error-prone rounding in the generation of
    integer-grid maps, by robust quantization methods. In parallel, parametrization-based
    hex mesh generation for volumes has been advanced. In this volumetric context,
    however, the state-of-the-art still relies on fragile rounding, not rarely producing
    defective meshes, especially when targeting a coarse mesh resolution. We present
    a method to robustly quantize volume parametrizations, i.e., to determine guaranteed
    valid choices of integers for 3D integer-grid maps. Inspired by the 2D case, we
    base our construction on a non-conforming cell decomposition of the volume, a
    3D analogue of a T-mesh. In particular, we leverage the motorcycle complex, a
    recent generalization of the motorcycle graph, for this purpose. Integer values
    are expressed in a differential manner on the edges of this complex, enabling
    the efficient formulation of the conditions required to strictly prevent forcing
    the map into degeneration. Applying our method in the context of hexahedral meshing,
    we demonstrate that hexahedral meshes can be generated with significantly improved
    flexibility.</jats:p>
author:
- first_name: Hendrik
  full_name: Brückler, Hendrik
  id: '115694'
  last_name: Brückler
- first_name: David
  full_name: Bommes, David
  last_name: Bommes
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
citation:
  ama: Brückler H, Bommes D, Campen M. Volume parametrization quantization for hexahedral
    meshing. <i>ACM Transactions on Graphics</i>. 2022;41(4):1-19. doi:<a href="https://doi.org/10.1145/3528223.3530123">10.1145/3528223.3530123</a>
  apa: Brückler, H., Bommes, D., &#38; Campen, M. (2022). Volume parametrization quantization
    for hexahedral meshing. <i>ACM Transactions on Graphics</i>, <i>41</i>(4), 1–19.
    <a href="https://doi.org/10.1145/3528223.3530123">https://doi.org/10.1145/3528223.3530123</a>
  bibtex: '@article{Brückler_Bommes_Campen_2022, title={Volume parametrization quantization
    for hexahedral meshing}, volume={41}, DOI={<a href="https://doi.org/10.1145/3528223.3530123">10.1145/3528223.3530123</a>},
    number={4}, journal={ACM Transactions on Graphics}, publisher={Association for
    Computing Machinery (ACM)}, author={Brückler, Hendrik and Bommes, David and Campen,
    Marcel}, year={2022}, pages={1–19} }'
  chicago: 'Brückler, Hendrik, David Bommes, and Marcel Campen. “Volume Parametrization
    Quantization for Hexahedral Meshing.” <i>ACM Transactions on Graphics</i> 41,
    no. 4 (2022): 1–19. <a href="https://doi.org/10.1145/3528223.3530123">https://doi.org/10.1145/3528223.3530123</a>.'
  ieee: 'H. Brückler, D. Bommes, and M. Campen, “Volume parametrization quantization
    for hexahedral meshing,” <i>ACM Transactions on Graphics</i>, vol. 41, no. 4,
    pp. 1–19, 2022, doi: <a href="https://doi.org/10.1145/3528223.3530123">10.1145/3528223.3530123</a>.'
  mla: Brückler, Hendrik, et al. “Volume Parametrization Quantization for Hexahedral
    Meshing.” <i>ACM Transactions on Graphics</i>, vol. 41, no. 4, Association for
    Computing Machinery (ACM), 2022, pp. 1–19, doi:<a href="https://doi.org/10.1145/3528223.3530123">10.1145/3528223.3530123</a>.
  short: H. Brückler, D. Bommes, M. Campen, ACM Transactions on Graphics 41 (2022)
    1–19.
date_created: 2025-06-25T09:07:20Z
date_updated: 2025-07-14T12:47:23Z
department:
- _id: '969'
doi: 10.1145/3528223.3530123
extern: '1'
intvolume: '        41'
issue: '4'
language:
- iso: eng
page: 1-19
publication: ACM Transactions on Graphics
publication_identifier:
  issn:
  - 0730-0301
  - 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: Volume parametrization quantization for hexahedral meshing
type: journal_article
user_id: '117512'
volume: 41
year: '2022'
...
---
_id: '60334'
abstract:
- lang: eng
  text: <jats:p>In this article, we provide a detailed survey of techniques for hexahedral
    mesh generation. We cover the whole spectrum of alternative approaches to mesh
    generation, as well as post-processing algorithms for connectivity editing and
    mesh optimization. For each technique, we highlight capabilities and limitations,
    also pointing out the associated unsolved challenges. Recent relaxed approaches,
    aiming to generate not pure-hex but hex-dominant meshes, are also discussed. The
    required background, pertaining to geometrical as well as combinatorial aspects,
    is introduced along the way.</jats:p>
author:
- first_name: Nico
  full_name: Pietroni, Nico
  last_name: Pietroni
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
- first_name: Alla
  full_name: Sheffer, Alla
  last_name: Sheffer
- first_name: Gianmarco
  full_name: Cherchi, Gianmarco
  last_name: Cherchi
- first_name: David
  full_name: Bommes, David
  last_name: Bommes
- first_name: Xifeng
  full_name: Gao, Xifeng
  last_name: Gao
- first_name: Riccardo
  full_name: Scateni, Riccardo
  last_name: Scateni
- first_name: Franck
  full_name: Ledoux, Franck
  last_name: Ledoux
- first_name: Jean
  full_name: Remacle, Jean
  last_name: Remacle
- first_name: Marco
  full_name: Livesu, Marco
  last_name: Livesu
citation:
  ama: 'Pietroni N, Campen M, Sheffer A, et al. Hex-Mesh Generation and Processing:
    A Survey. <i>ACM Transactions on Graphics</i>. 2022;42(2):1-44. doi:<a href="https://doi.org/10.1145/3554920">10.1145/3554920</a>'
  apa: 'Pietroni, N., Campen, M., Sheffer, A., Cherchi, G., Bommes, D., Gao, X., Scateni,
    R., Ledoux, F., Remacle, J., &#38; Livesu, M. (2022). Hex-Mesh Generation and
    Processing: A Survey. <i>ACM Transactions on Graphics</i>, <i>42</i>(2), 1–44.
    <a href="https://doi.org/10.1145/3554920">https://doi.org/10.1145/3554920</a>'
  bibtex: '@article{Pietroni_Campen_Sheffer_Cherchi_Bommes_Gao_Scateni_Ledoux_Remacle_Livesu_2022,
    title={Hex-Mesh Generation and Processing: A Survey}, volume={42}, DOI={<a href="https://doi.org/10.1145/3554920">10.1145/3554920</a>},
    number={2}, journal={ACM Transactions on Graphics}, publisher={Association for
    Computing Machinery (ACM)}, author={Pietroni, Nico and Campen, Marcel and Sheffer,
    Alla and Cherchi, Gianmarco and Bommes, David and Gao, Xifeng and Scateni, Riccardo
    and Ledoux, Franck and Remacle, Jean and Livesu, Marco}, year={2022}, pages={1–44}
    }'
  chicago: 'Pietroni, Nico, Marcel Campen, Alla Sheffer, Gianmarco Cherchi, David
    Bommes, Xifeng Gao, Riccardo Scateni, Franck Ledoux, Jean Remacle, and Marco Livesu.
    “Hex-Mesh Generation and Processing: A Survey.” <i>ACM Transactions on Graphics</i>
    42, no. 2 (2022): 1–44. <a href="https://doi.org/10.1145/3554920">https://doi.org/10.1145/3554920</a>.'
  ieee: 'N. Pietroni <i>et al.</i>, “Hex-Mesh Generation and Processing: A Survey,”
    <i>ACM Transactions on Graphics</i>, vol. 42, no. 2, pp. 1–44, 2022, doi: <a href="https://doi.org/10.1145/3554920">10.1145/3554920</a>.'
  mla: 'Pietroni, Nico, et al. “Hex-Mesh Generation and Processing: A Survey.” <i>ACM
    Transactions on Graphics</i>, vol. 42, no. 2, Association for Computing Machinery
    (ACM), 2022, pp. 1–44, doi:<a href="https://doi.org/10.1145/3554920">10.1145/3554920</a>.'
  short: N. Pietroni, M. Campen, A. Sheffer, G. Cherchi, D. Bommes, X. Gao, R. Scateni,
    F. Ledoux, J. Remacle, M. Livesu, ACM Transactions on Graphics 42 (2022) 1–44.
date_created: 2025-06-23T10:36:34Z
date_updated: 2025-07-14T12:48:37Z
department:
- _id: '969'
doi: 10.1145/3554920
extern: '1'
intvolume: '        42'
issue: '2'
language:
- iso: eng
page: 1-44
publication: ACM Transactions on Graphics
publication_identifier:
  issn:
  - 0730-0301
  - 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: 'Hex-Mesh Generation and Processing: A Survey'
type: journal_article
user_id: '117512'
volume: 42
year: '2022'
...
