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Nishimura Kazuya
西村　和也
Nishimura Kazuya
西村　和也
D3 Center，Assistant Professor

keyword Pattern Recognition，Medical Image，Histopathological Image，Label-efficient Learning，Weakly Supervised Learning，Semi-supervised Learning

Research History 2

  1. 2025/10 - Present
    The University of Osaka　D3 center Intelligence and Sensing Research Division　Assistant Professor

  2. 2024/04 - Present
    National Cancer Center　Project Researcher

Education 3

  1. Kyushu University　Faculty of Information Science and Electrical Engineering

    2021/04 - 2024/03

  2. Kyushu University　Faculty of Information Science and Electrical Engineering　Department of Advanced Information Technology

    2019/04 - 2021/03

  3. Kyushu University　School of Engineering

    2017/04 - 2019/03

Committee Memberships 7

  1. 第27回画像の認識・理解シンポジウム（MIRU2026), MIRU 2025-26 メンターシッププログラム　MIRUメンターシッププログラム 副委員長　Academic society

    2025/08 - Present

  2. 画像センシング技術研究会　広報部会，部会長　Academic society

    2025/07 - Present

  3. 19th International Conference on Machine Vision Applications　Poster Chair　Academic society

    2024/04 - Present

  4. 第25, 26回画像の認識・理解シンポジウム（MIRU2024, MIRU2025）, MIRU 2024-25 メンターシッププログラム　メンター　Academic society

    2023/07 - Present

  5. 画像センシング技術研究会　広報部会，副部会長　Academic society

    2024/07 - 2025/05

  6. 画像センシング技術研究会　SNS Chair　Academic society

    2023/06 - 2024/06

  7. 情報処理学会コンピュータビジョンとイメージメディア研究会(CVIM)　MIRU2023 若手プログラム委員　Academic society

    2022/07 - 2023/08

Research Areas 2

  1. Informatics / Perceptual information processing /

  2. Informatics / Biological, health, and medical informatics /

Awards 6

  1. MIRU 学生奨励賞

    西村和也　パターン認識・メディア理解研究会　2021/07

  2. PRMU 研究メンターシッププログラム優秀賞

    西村和也　パターン認識・メディア理解研究会　2021/05

  3. MIRU 学生奨励賞

    西村和也　2020/08

  4. PRMU 月間ベストプレゼンテーション賞

    西村和也　パターン認識・メディア理解研究会　2020/05

  5. MIRU 学生奨励賞

    西村和也　情報処理学会コンピュータビジョンとイメージメディア(CVIM)研究会　2019/07

  6. PRMU 月間ベストプレゼンテーション賞

    西村 和也　パターン認識・メディア理解研究会　2019/06

Papers 26

  1. Towards Spatial Transcriptomics-guided Pathological Image Recognition with Batch-Agnostic Encoder.

    Kazuya Nishimura, Ryoma Bise, Yasuhiro Kojima

    CoRR　Vol. abs/2503.07173　2025/03　Research paper (scientific journal)

  2. Ordinal Multiple-instance Learning for Ulcerative Colitis Severity Estimation with Selective Aggregated Transformer.

    Kaito Shiku, Kazuya Nishimura, Daiki Suehiro, Kiyohito Tanaka, Ryoma Bise

    WACV　p. 4290-4299　2025　Research paper (international conference proceedings)

  3. Towards Spatial Transcriptomics-Guided Pathological Image Recognition with Batch-Agnostic Encoder.

    Kazuya Nishimura, Ryoma Bise, Yasuhiro Kojima

    ISBI　p. 1-5　2025　Research paper (international conference proceedings)

  4. Proportion Estimation by Masked Learning from Label Proportion.

    Takumi Okuo, Kazuya Nishimura, Hiroaki Ito, Kazuhiro Terada, Akihiko Yoshizawa, Ryoma Bise

    CoRR　Vol. abs/2405.04815　2024　Research paper (scientific journal)

  5. Mitosis Detection from Partial Annotation by Dataset Generation via Frame-Order Flipping.

    Kazuya Nishimura, Ami Katanaya, Shinichiro Chuma, Ryoma Bise

    CoRR　Vol. abs/2307.04113　2023　Research paper (scientific journal)

  6. Mitosis Detection from Partial Annotation by Dataset Generation via Frame-Order Flipping.

    Kazuya Nishimura, Ami Katanaya, Shinichiro Chuma, Ryoma Bise

    MICCAI (8)　p. 483-492　2023　Research paper (international conference proceedings)

  7. Effective Pseudo-Labeling based on Heatmap for Unsupervised Domain Adaptation in Cell Detection.

    Hyeonwoo Cho, Kazuya Nishimura, Kazuhide Watanabe, Ryoma Bise

    CoRR　Vol. abs/2303.05269　2023　Research paper (scientific journal)

  8. Weakly Supervised Cell-Instance Segmentation with Two Types of Weak Labels by Single Instance Pasting.

    Kazuya Nishimura, Ryoma Bise

    WACV　p. 3184-3193　2023　Research paper (international conference proceedings)

    Publisher: IEEE

  9. Multi-Frame Attention with Feature-Level Warping for Drone Crowd Tracking.

    Takanori Asanomi, Kazuya Nishimura, Ryoma Bise

    WACV　p. 1664-1673　2023　Research paper (international conference proceedings)

    Publisher: IEEE

  10. Unsupervised Deep Non-rigid Alignment by Low-Rank Loss and Multi-input Attention

    Takanori Asanomi, Kazuya Nishimura, Heon Song, Junya Hayashida, Hiroyuki Sekiguchi, Takayuki Yagi, Imari Sato, Ryoma Bise

    Lecture Notes in Computer Science　p. 185-195　2022/09/17　Part of collection (book)

    Publisher: Springer Nature Switzerland

  11. Consistent Cell Tracking in Multi-frames with Spatio-Temporal Context by Object-Level Warping Loss.

    Junya Hayashida, Kazuya Nishimura, Ryoma Bise

    IEEE/CVF Winter Conference on Applications of Computer Vision(WACV)　p. 1759-1768　2022　Research paper (international conference proceedings)

    Publisher: IEEE

  12. Effective pseudo-labeling based on heatmap for unsupervised domain adaptation in cell detection.

    Hyeonwoo Cho, Kazuya Nishimura, Kazuhide Watanabe, Ryoma Bise

    Medical Image Anal.　Vol. 79　p. 102436-102436　2022　Research paper (scientific journal)

  13. Cell Detection from Imperfect Annotation by Pseudo Label Selection Using P-classification

    Kazuma Fujii, Daiki Suehiro, Kazuya Nishimura, Ryoma Bise

    Medical Image Computing and Computer Assisted Intervention - MICCAI 2021 - 24th International Conference　p. 425-434　2021/07/20　Research paper (international conference proceedings)

    Publisher: Springer

  14. Cell Detection in Domain Shift Problem Using Pseudo-Cell-Position Heatmap

    Hyeonwoo Cho, Kazuya Nishimura, Kazuhide Watanabe, Ryoma Bise

    Medical Image Computing and Computer Assisted Intervention - MICCAI 2021 - 24th International Conference　Vol. abs/2107.08653　p. 384-394　2021/07/19　Research paper (international conference proceedings)

    Publisher: Springer

  15. Semi-supervised Cell Detection in Time-lapse Images Using Temporal Consistency

    Kazuya Nishimura, Hyeonwoo Cho, Ryoma Bise

    Medical Image Computing and Computer Assisted Intervention - MICCAI 2021 - 24th International Conference　Vol. abs/2107.08639　p. 373-383　2021/07/19　Research paper (international conference proceedings)

    Publisher: Springer

  16. Cell Detection in Domain Shift Problem Using Pseudo-Cell-Position Heatmap.

    Hyeonwoo Cho, Kazuya Nishimura, Kazuhide Watanabe, Ryoma Bise

    CoRR　Vol. abs/2107.08653　2021　Research paper (scientific journal)

  17. Semi-supervised Cell Detection in Time-lapse Images Using Temporal Consistency.

    Kazuya Nishimura, Hyeonwoo Cho, Ryoma Bise

    CoRR　Vol. abs/2107.08639　2021　Research paper (scientific journal)

  18. Cell Detection from Imperfect Annotation by Pseudo Label Selection Using P-classification.

    Kazuma Fujii, Daiki Suehiro, Kazuya Nishimura, Ryoma Bise

    CoRR　Vol. abs/2107.09289　2021　Research paper (scientific journal)

  19. Weakly supervised cell instance segmentation under various conditions.

    Kazuya Nishimura, Chenyang Wang, Kazuhide Watanabe, Dai Fei Elmer Ker, Ryoma Bise

    Medical Image Analysis　Vol. 73　p. 102182-102182　2021　Research paper (scientific journal)

  20. Weakly-Supervised Cell Tracking via Backward-and-Forward Propagation

    Kazuya Nishimura, Junya Hayashida, Chenyang Wang, Dai Fei Elmer Ker, Ryoma Bise

    Computer Vision - ECCV 2020 - 16th European Conference　Vol. abs/2007.15258　p. 104-121　2020/07/30　Research paper (international conference proceedings)

    Publisher: Springer

  21. Spatial-Temporal Mitosis Detection in Phase-Contrast Microscopy via Likelihood Map Estimation by 3DCNN

    Kazuya Nishimura, Ryoma Bise

    42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society(EMBC)　Vol. abs/2004.12531　p. 1811-1815　2020/04/27　Research paper (international conference proceedings)

    Publisher: IEEE

  22. MPM: Joint Representation of Motion and Position Map for Cell Tracking

    Junya Hayashida, Kazuya Nishimura, Ryoma Bise

    2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition(CVPR)　Vol. abs/2002.10749　p. 3822-3831　2020/02/25　Research paper (international conference proceedings)

    Publisher: Computer Vision Foundation / IEEE

  23. Weakly-Supervised Cell Tracking via Backward-and-Forward Propagation.

    Kazuya Nishimura, Junya Hayashida, Chenyang Wang, Dai Fei Elmer Ker, Ryoma Bise

    CoRR　Vol. abs/2007.15258　2020　Research paper (scientific journal)

  24. Spatial-Temporal Mitosis Detection in Phase-Contrast Microscopy via Likelihood Map Estimation by 3DCNN.

    Kazuya Nishimura, Ryoma Bise

    CoRR　Vol. abs/2004.12531　2020　Research paper (scientific journal)

  25. MPM: Joint Representation of Motion and Position Map for Cell Tracking.

    Junya Hayashida, Kazuya Nishimura, Ryoma Bise

    CoRR　Vol. abs/2002.10749　2020　Research paper (scientific journal)

  26. Weakly Supervised Cell Instance Segmentation by Propagating from Detection Response

    Kazuya Nishimura, Dai Fei Elmer Ker, Ryoma Bise

    2019/11/29