Publications

Conference papers

Re-Defining Vanishing Municipalities in Japan: A Multidimensional Clustering and SLM-Based Policy Insight Framework

Toma Okugawa, Keito Inoshita

Proceedings of the IEEE 15th Global Conference on Consumer Electronics (IEEE GCCE 2026)October 2026To appearRefereed

BibTeX

@inproceedings{okugawa2026vanishing,
  author    = {Okugawa, Toma and Inoshita, Keito},
  title     = {Re-Defining Vanishing Municipalities in {Japan}: A Multidimensional Clustering and {SLM}-Based Policy Insight Framework},
  booktitle = {Proceedings of the IEEE 15th Global Conference on Consumer Electronics (GCCE 2026)},
  publisher = {IEEE},
  year      = {2026},
  month     = oct,
  note      = {to appear}
}

KiWi: A Secure Information Request and Management System for Public Institutions through the Digitization of Paper-Based Personal Data

Atsuki Seo, Hiroyoshi Enomoto, Haruki Ishibashi, Toma Okugawa, Shosei Hamada

IPSJ National Convention20 February 2026Refereed

BibTeX

@inproceedings{seo2026kiwi,
  author    = {Seo, Atsuki and Enomoto, Hiroyoshi and Ishibashi, Haruki and Okugawa, Toma and Hamada, Shosei},
  title     = {KiWi:公的機関における紙書類の安全な電子化を実現する個人情報管理・請求システムの提案},
  booktitle = {情報処理学会全国大会講演論文集},
  publisher = {情報処理学会},
  year      = {2026},
  month     = feb
}

Proposal and Web Implementation of a Kyudo Form Evaluation Method Based on Real-Time Pose Estimation

Toma Okugawa, Tomonari Masuzaki, Takahiro Makiyama

2025 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (SJCIEE 2025)22 September 2025Refereed

BibTeX

@inproceedings{okugawa2025kyudo,
  author    = {Okugawa, Toma and Masuzaki, Tomonari and Makiyama, Takahiro},
  title     = {リアルタイム姿勢推定による弓道フォーム評価手法の提案とWeb実装},
  booktitle = {電気・電子・情報関係学会四国支部連合大会講演論文集 (SJCIEE 2025)},
  year      = {2025},
  month     = sep
}

Journal articles

Educational practice at university using Huygens' cycloidal pendulum clock

Takahiro Makiyama, Haruki Ishibashi, Toma Okugawa, Yasuyuki Kubo

Journal of the Physics Education Society of Japan, Vol. 74, No. 32026To appearRefereed

BibTeX

@article{makiyama2026huygens,
  author    = {Makiyama, Takahiro and Ishibashi, Haruki and Okugawa, Toma and Kubo, Yasuyuki},
  title     = {ホイヘンスのサイクロイド振り子時計を用いた大学での教育実践},
  journal   = {物理教育},
  publisher = {日本物理教育学会},
  volume    = {74},
  number    = {3},
  year      = {2026},
  note      = {to appear}
}

Preprints

Recognition Without Revenue: Designing a Failure-Case-Based Entrepreneurship Education Model for Japanese KOSEN Students

Toma Okugawa

EdArXiv12 September 2026Preprint

doi.org/10.35542/osf.io/dr9jx_v1

BibTeX

@misc{okugawa2026recognition,
  author       = {Okugawa, Toma},
  title        = {Recognition Without Revenue: Designing a Failure-Case-Based Entrepreneurship Education Model for {Japanese} {KOSEN} Students},
  howpublished = {EdArXiv preprint},
  year         = {2026},
  month        = sep,
  doi          = {10.35542/osf.io/dr9jx_v1},
  url          = {https://doi.org/10.35542/osf.io/dr9jx_v1}
}

SD-Retinex: A Stable Retinex Method for Low-Light Image Enhancement Designed Around the Sigmoid Derivative

Toma Okugawa

Zenodo27 June 2026Preprint

BibTeX

@misc{okugawa2026sdretinex,
  author       = {Okugawa, Toma},
  title        = {{SD-Retinex}: A Stable Retinex Method for Low-Light Image Enhancement Designed Around the Sigmoid Derivative},
  howpublished = {Zenodo},
  year         = {2026},
  month        = jun,
  doi          = {10.5281/zenodo.20945211},
  url          = {https://doi.org/10.5281/zenodo.20945211}
}

A High-Speed and Structure-Preserving Retinex Method Based on a Complex Exponential Kernel: XCR

Toma Okugawa

Jxiv20 November 2025Preprint

doi.org/10.51094/jxiv.1961

BibTeX

@misc{okugawa2025xcr,
  author       = {Okugawa, Toma},
  title        = {複素指数カーネルに基づく高速・構造保持型 Retinex手法 XCRの提案},
  howpublished = {Jxiv preprint},
  year         = {2025},
  month        = nov,
  doi          = {10.51094/jxiv.1961},
  url          = {https://doi.org/10.51094/jxiv.1961}
}

Proposal of Fast Single-Scale Retinex and Evaluation of Real-Time Human Pose Estimation Performance under Low-Light Conditions

Toma Okugawa

Jxiv12 November 2025Preprint

doi.org/10.51094/jxiv.1897

BibTeX

@misc{okugawa2025fssr,
  author       = {Okugawa, Toma},
  title        = {Fast Single-Scale Retinexの提案と低照度環境におけるリアルタイム骨格検出性能の評価},
  howpublished = {Jxiv preprint},
  year         = {2025},
  month        = nov,
  doi          = {10.51094/jxiv.1897},
  url          = {https://doi.org/10.51094/jxiv.1897}
}