Information and Communication Sciences
Profile Information
- Affiliation
- Assistant Professor, Department of Information and Communication Sciences, Faculty of Science and Technology, Sophia University
- Degree
- Doctor of Philosophy in Computer Science(Sep, 2012, Chiba University)Master of Engineering(Mar, 2008, Chiba University)
- Contact information
- kameda
sophia.ac.jp - Researcher number
- 50711553
- ORCID ID
https://orcid.org/0000-0001-8503-4098- J-GLOBAL ID
- 200901044504595965
- Researcher ID
- DXV-2876-2022
- researchmap Member ID
- 6000014798
- External link
Natural science is a way to clarify what is possible or impossible, and engineering is scientific manufacturing. Among them, computer science is a discipline that regards all phenomena and things as a calculation process. Let's study together to acquire specialized knowledge and skills and provide new value to the world.
My major is image processing, especially video motion and flow estimation. Motion and flow information estimated from images is expected to be widely applied to object recognition by computers, self-position estimation and obstacle detection of robots and cars, and fluid measurement and analysis. We are conducting research to estimate motion with high speed and high accuracy. In addition to research, we also teach practical ICT technologies such as programming and server management.
Research Interests
13Research Areas
5Research History
9-
Apr, 2021 - Mar, 2025
Education
6-
Apr, 2006 - Sep, 2012
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Apr, 2005 - Mar, 2006
Major Committee Memberships
69-
Apr, 2023 - Mar, 2024
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Apr, 2020 - Mar, 2021
Major Awards
25Papers
103-
IEICE Transactions on Information and Systems, E108D(1), Jan, 2025 Peer-reviewedLast authorCorresponding author
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International Workshop on Advanced Imaging Technology (IWAIT) 2024, 13164(131642Q) 1-5, May 2, 2024 Peer-reviewedLast author
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International Workshop on Advanced Imaging Technology (IWAIT) 2024, 13164(1316428) 1-5, May 2, 2024 Peer-reviewedLast author
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2022 Picture Coding Symposium (PCS), 79-83, Dec 7, 2022 Peer-reviewedAn autoregressive image generative model that estimates the conditional probability distributions of image signals pel-by-pel is a promising tool for lossless image coding. In this paper, a generative model based on a convolutional neural network (CNN) was combined with a locally trained adaptive predictor to improve its accuracy. Furthermore, sets of parameters that adjust the estimated probability distribution were numerically optimized for each image to minimize the resulting coding rate. Simulation results indicate that the proposed method improves the coding efficiency obtained by the CNN-based model for most of the tested images.
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International Workshop on Advanced Imaging Technology (IWAIT) 2022, (1217718) 1-5, May 1, 2022 Peer-reviewed
Misc.
171-
映像情報メディア学会年次大会講演予稿集(CD-ROM), 2024, 2024
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映像情報メディア学会年次大会講演予稿集(CD-ROM), 2024, 2024
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電気学会研究会資料(Web), (PE-24-024-045/PSE-24-036-057/SPC-24-078-099), 2024
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画像符号化シンポジウム・映像メディア処理シンポジウム(Web), 38th-28th, 2023
Presentations
192-
The 3rd Collaborative Symposium on Science and Engineering by the Faculties of Kwansei Gakuin University & Sophia University: 'Perception and Interaction' as Frontiers in Information Science, Feb 26, 2024, Science and Engineering Faculties of Kwansei Gakuin University & Sophia University Invited
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The 3rd Digital Imaging Technology Subcommittee Seminar of the 2023 Fiscal Year, Feb 14, 2024, Japan Optomechatronics Association InvitedSeveral studies on video processing using stereo cameras, depth cameras, event cameras, as well as special image sensors will be presented.
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The 2022 IEICE General Conference, Mar 17, 2022 Invited
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A Study on Side-Information Reduction in SSIM-Optimal Post Filtering for Coding Artifact Elimination映像情報メディア学会冬季大会講演予稿集(CD-ROM), Dec, 2021
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映像情報メディア学会冬季大会講演予稿集(CD-ROM), Dec, 2021
Major Teaching Experience
32-
Apr, 2022 - PresentMaster's Thesis Tutorial and Exercise (Sophia University)
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Sep, 2021 - PresentInformation Fluency (C Programming) (Sophia University)
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Sep, 2021 - PresentBasic Informatics (Sophia University)
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Sep, 2021 - PresentImage Processing Technology (Sophia University)
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Apr, 2021 - PresentGraduation Research (Sophia University)
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Apr, 2021 - PresentVisual Media Processing (Sophia University)
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Apr, 2021 - PresentInformation Fluency (Python Programming) (Sophia University)
Professional Memberships
14-
2020 - Present
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2020 - Present
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2019 - Present
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2017 - Present
Works
1-
Feb 23, 2022 Software
Major Research Projects
13-
科学研究費助成事業, 日本学術振興会, Apr, 2024 - Mar, 2028
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Sophia University Special Grant for Academic Research, Sophia University, Aug, 2023 - Mar, 2026
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科学研究費助成事業, 日本学術振興会, Apr, 2020 - Mar, 2024
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Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, Apr, 2017 - Mar, 2023
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2016 - Mar, 2019
Media Coverage
1-
Tokyo University of Science, https://www.tus.ac.jp/en/mediarelations/archive/20210510_0987.html, May, 2021 Internet