Publications

Research articles, bulletins, technical reports, conference papers, and workshop outputs from the laboratory.

Research Outputs

Publications grouped by publication year.

2026

2D Human Pose Estimation via Compressed Token Learning with Structural Consistency

Domestic Conference

Hashizume, Wataru, Usami, Hiroyasu

Meeting on Image Recognition and Understanding (MIRU 2026), 2026.08

IS3-171, Paper ID 366, Interactive Session IS3, 2026-08-06

Program

LLM Judges Have Dark Current: A Psychometric Datasheet for LLM-as-a-Judge Evaluation

Preprint

Usami, Hiroyasu, Hara, Keisuke, Tsuboi, Ayato, Matsuda, Naohiko

arXiv, 2026.06

arXiv:2606.15610 [cs.CL], 22 pages, 4 figures

DOI Paper PDF

AI Arteriosclerosis Diagnosis System Using RLHF and Adversarial Attack: Quantitative Evaluation of IMT Extraction Robustness by Adversarial Learning

Bulletin

Usami, Hiroyasu

Journal of Comprehensive Engineering, 2026.03

Vol. 38, pp. 1-11

Paper PDF

Anatomy-Preserving Diffusion-Based Data Augmentation for Medical Image Segmentation

International Conference

Tominari, Hiroki, Nakayama, Natsuki, Arakawa, Naoko, Usami, Hiroyasu

Proceedings of the 19th International Joint Conference on Biomedical Engineering Systems and Technologies -- BIOIMAGING, 2026

BIOIMAGING 2026

DOI

O(V) Computational Optimization and Physics-informed STGNN for Building IoT Simulation

Technical Report

Tajima, Koichiro, Usami, Hiroyasu

IEICE Technical Report, 2026.01

EST2025-95, 2026-01-23

2025

A Stabilization Method for Automatic Educational Question Generation Based on Self-consistency in Chain-of-Thought Reasoning

Domestic Workshop

Shimotsuji, Nayuta, Usami, Hiroyasu, Nakane, Jin

23rd Workshop on Informatics (WiNF 2025), 2025

P1A-3

Rain-effect Removal and Weather Estimation for Outdoor Images Using Rain Artifact Separation Learning

Domestic Workshop

Kikuta, Manato, Hashizume, Wataru, Usami, Hiroyasu

23rd Workshop on Informatics (WiNF 2025), 2025

P1A-31

Verification of Semantic Biosynthesis in Image Generative AI Through a Modality Conversion-based Generation and Verification Cycle

Domestic Workshop

Izuhara, Keima, Tominari, Hiroki, Usami, Hiroyasu

23rd Workshop on Informatics (WiNF 2025), 2025

P1A-30

Data Augmentation for Retinal Image Segmentation Based on Ground-truth Mask Images

Domestic Conference

Tominari, Hiroki, Usami, Hiroyasu

Proceedings of the 2025 Tokai-Section Joint Conference on Electrical, Electronics, Information, and Related Engineering, 2025.09

2025-09-18; program title variant: Data augmentation for retinal image segmentation based on ground-truth masks

Application of a Fully Connected Spatio-Temporal GNN Structure for Day-of-week Classification Based on Communication Logs

Domestic Conference

Tajima, Koichiro, Nakashima, Yuki, Usami, Hiroyasu

Proceedings of the 2025 Tokai-Section Joint Conference on Electrical, Electronics, Information, and Related Engineering, 2025.09

G3-6, 2025-09-18

Efficient Automatic IMT Region Extraction Using MobileNetV3 and SegNet for Mobile Carotid Ultrasound Imaging

International Conference

Usami, Hiroyasu, Nakayama, Natsuki, Arakawa, Naoko

BIOIMAGING 2025, 2025

BIOIMAGING25-367: Abstract, 20 min oral presentation

Inverse Rendering Using Single-view Polarization Cues and Shape Guidance Under Ambient Light

Domestic Conference

Tsuboi, Ayato, Usami, Hiroyasu

Meeting on Image Recognition and Understanding (MIRU 2025), 2025

IS1-016

2024

A Study of Purpose-oriented Prompts for Image Generative AI

Domestic Workshop

Fukuoka, Reiya, Tominari, Hiroki, Usami, Hiroyasu, Iwahori, Yuji

Proceedings of the 55th Tokai Fuzzy Workshop, Japan Society for Fuzzy Theory and Intelligent Informatics, 2024

P1-07

SegNet-based IMT Region Segmentation in Carotid Ultrasound Images

Domestic Workshop

Doi, Mizuki, Usami, Hiroyasu, Nakayama, Natsuki, Arakawa, Naoko

Proceedings of the 56th Tokai Fuzzy Workshop, 2024.08

2024-08-05

Development of an Information-Sharing System to Bridge the Information Gap Among Health Professionals in the Thai Rural Community

International Conference

Arakawa, Naoko, Phunthawee, Patcharin, Nakayama, Natsuki, Usami, Hiroyasu, Ota, Katsumasa, Suzuki, Yuri

27th East Asian Forum of Nursing Scholars, 2024

EAFONS 2024

2023

Recommending Learning Actions Using Neural Network

International Conference

Kohama, Hirokazu, Ban, Yuki, Hirakawa, Tsubasa, Yamashita, Takayoshi, Fujiyoshi, Hironobu, Itai, Akitoshi, Usami, Hiroyasu

Proceedings of the 31st International Conference on Computers in Education, 2023

ICCE 2023

DOI

Research and Evaluation of Effective Prompts for Stable Diffusion-based AI Image Generation Tools

Domestic Workshop

Tominari, Hiroki, Fukuoka, Reiya, Usami, Hiroyasu

21st Workshop on Informatics (WiNF 2023), 2023

S3C-4

Image Processing-based Support System for Recognizing Dangerous Worker Actions and Preventing Machine Accidents

Domestic Workshop

Hashizume, Wataru, Usami, Hiroyasu, Noguchi, Yusuke, Tsuchida, Hiroyuki, Iwahori, Yuji

21st Workshop on Informatics (WiNF 2023), 2023

S2A-1

Establishing a Reciprocal Self-organization Mechanism for Extracting Simplified Information in Deep Learning

Bulletin

Usami, Hiroyasu

Journal of Comprehensive Engineering, 2023.03

Vol. 35, pp. 1-10

Sample-region Extraction in Biomass Ash Dissolution Image Data Using Time-series Information

Technical Report

Yamane, Haruki, Usami, Hiroyasu, Suzuki, Yuri, Ninomiya, Yoshihiko

IEICE Technical Report, 2023

EST2022-87

2022

Shape Classification of Fly Ash Particles Using Deep Learning

Domestic Conference

Ninomiya, Yoshihiko, Jiang, Yanchi, Nakamura, Taichi, Usami, Hiroyasu, Mori, Takehito, Naganuma, Hiroshi, Sawada, Akihiro

Proceedings of the Conference on Coal Science, 2022

No. 59, pp. 20-21

A Study on Biomass Ash Melting Test Methods and Their Interpretation

Domestic Conference

Ninomiya, Yoshihiko, Sato, Ryuma, Usami, Hiroyasu, Hoshino, Hiroki

Proceedings of the Conference on Biomass Science, 2022

O-18

DOI

Adaptive Virtualization Environment Using Edge Computing

Domestic Workshop

Hayashi, Yuto, Yamane, Haruki, Usami, Hiroyasu

20th Workshop on Informatics (WiNF 2022), 2022

S-1B-5

A Text-to-image Model Considering Latent Information Specific to Japanese

Domestic Workshop

Fukuoka, Reiya, Yamazaki, Daiki, Yamane, Haruki, Usami, Hiroyasu, Suzuki, Yuri

20th Workshop on Informatics (WiNF 2022), 2022

S-4A-7

Coal Image Segmentation Using an Attention Mechanism Considering Relationships Between Coal and Included Minerals

Domestic Workshop

Tajima, Koichiro, Doi, Mizuki, Usami, Hiroyasu, Ninomiya, Yoshihiko

20th Workshop on Informatics (WiNF 2022), 2022

S-4B-10

Improvement of Polyp Detection using MUNIT for Image Generation

International Conference

Iwahori, Yuji, Ooto, Tsubasa, Usami, Hiroyasu, Fukui, Shinji, Bhuyan, M. K., Wang, Aili, Ogasawara, Naotaka, Kasugai, Kunio

Procedia Computer Science, 2022

KES 2022

DOI

For earlier publications before the establishment of Usami Laboratory, please refer to thefaculty profile.