論文 - 田村 宏樹
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Toyama N., Hidaka T., Tamura H., Ikeda Y.
Scientific Reports 16 ( 1 ) 2026年2月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Scientific Reports
Retinal detachment (RD) is a serious ocular disease that can lead to permanent vision loss. In cases with fundus-obscuring vitreous hemorrhage (VH), it is difficult to detect RD even using ocular ultrasonography. We developed a convolutional neural network (CNN) based on the You Only Look Once version 5 (YOLOv5) architecture to detect RD and VH on B-scan ultrasound images. The model was trained using 2,188 images and validated using 1,042 images. We applied image enhancement techniques, including unsharp masking (UM), to improve the detection accuracy. The final model (Incorporating fivefold cross-validation along with previous techniques) achieved overall accuracies of 96.6%, 99.2%, and 98.0% for RD, VH, and RD with VH, respectively. Our deep-learning algorithm showed high accuracy in detecting RD and VH on ocular ultrasound images. In cases with fundus-obscuring VH, our deep-learning algorithm might be useful for detecting RD as a supportive tool on ocular ultrasound images.
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An EMG-Based GRU Model for Estimating Foot Pressure to Support Active Ankle Orthosis Development 査読あり
Praveen Nuwantha Gunaratne, Hiroki Tamura
Sensors 25 ( 11 ) 3558 2025年6月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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A Review: Developments in Hardware Systems of Active Ankle Orthoses 査読あり
Praveen Nuwantha Gunaratne, Hiroki Tamura
Sensors 24 ( 24 ) 8153 2024年12月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Analysis of Generalization Pertinency in Autoencoder-Based Anomaly Detection for Industrial Motor Sounds Using SVM 査読あり
Jamil Md Shafayet, Praveen Nuwantha Gunaratne, Hiroki Tamura
ICAROB2026 Proceedings 2026年1月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Two-Stage YOLOv4-Tiny for Vascular Stenosis Detection Using AVF Shunt Sound Data 査読あり
Lucky Nindya Palupi, Hiroki Tamura
ICAROB2026 Proceedings 2026年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A study on action recognition for the elderly using depth camera 査読あり
Nakashima R., Zin T.T., Tamura H., Watanabe S., Chosa E.
Icce Taiwan 2025 12th IEEE International Conference on Consumer Electronics Taiwan Generative AI in Innovative Consumer Technology Proceedings 119 - 120 2025年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Icce Taiwan 2025 12th IEEE International Conference on Consumer Electronics Taiwan Generative AI in Innovative Consumer Technology Proceedings
In this study, a depth camera-based system is proposed to achieve non-contact, privacy-preserving action recognition using human skeleton recognition. Specifically, human regions are first extracted using bounding box (BB) detection, followed by action recognition based on Keypoint-based pose estimation. The estimated Keypoints capture detailed joint positions, and their structural relationships are modeled with a Graph Convolutional Network (GCN). Furthermore, a Transformer is employed to capture the temporal features of the skeletal data. This Keypoint-centric pipeline differentiates our approach from conventional, silhouette-level methods and significantly enhances the granularity of action recognition.
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Soesilo T.H., Tamura H.
Proceedings International Conference on Machine Learning and Cybernetics 217 - 222 2025年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Proceedings International Conference on Machine Learning and Cybernetics
Accurate evaluation of lumbar loads stands as an essential requirement for both understanding lower back risks and injury prevention in occupational and clinical scenarios. This paper examines existing methods used to analyze lumbar burden while outlining their integration with modern human pose estimation algorithms. Precise measurements emerge from traditional methods like electromyography, finite element models, and wearable sensor systems yet their practical use faces challenges due to invasiveness, computational requirements, and placement sensitivity. Real-time human pose estimation has achieved advancements through methods like RTMPose, OpenPose and HRNet which offer non-invasive scalable solutions for real-time motion analysis. This paper reveals the advantages and shortcomings in both domains while identifying the value of integrating pose estimation frameworks with lumbar load analysis for better accuracy in real-world usage. The assessment reaches its conclusion by evaluating present roadblocks while suggesting future research agendas to combine motion tracking systems with biomechanical modeling frameworks.
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Evaluation of Ankle Joint Movements in Frontal Plane for a Normal Coordinated Gait 査読あり
Praveen Nuwantha Gunaratne, Hiroki Tamura
ICAROB2025 Proceedings 2025年2月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Study on Methodology of Measurement for the Physical Burden on Preschool Children 査読あり
Sachiko Kido, Hiroki Tamura
ICAROB2025 Proceedings 2025年2月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Development of a Real-Time Multi-Person 3D Keypoint Detection System Using Stereoscopic Cameras and RTMPose 査読あり
Taufik Hidayat Soesilo, Praveen Nuwantha Gunaratne, Hiroki Tamura
ICAROB2025 Proceedings 2025年2月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Study on the Comparison of various Preprocessing Methods for Bengali Character Recognition using Convolutional Neural Network 査読あり
Md Shafayet Jamil, Hiroki Tamura
Genetic and Evolutionary Computing (ICGEC 2024) 254 - 262 2025年2月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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ENHANCING FACTORY EFFICIENCY: DATA-DRIVEN ANALYSIS WITH WORKER DETECTION AND TRACKING SYSTEM 査読あり
I. Hidaka, S. Inoue, T. Ishikawa, H. Tamura, Thi Thi Zin
ICIC Express Letters 18 ( 12 ) 1327 - 1337 2024年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Unobtrusive Elderly Action Recognition with Transitions Using CNN-RNN 査読あり
Ye Htet, Thi Thi Zin, Hiroki Tamura, Kazuhiro Kondo, Etsuo Chosa
Journal of Signal Processing 28 ( 6 ) 315 - 319 2024年11月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Proceedings - 2024 IEEE 21st International Conference on Mobile Ad-Hoc and Smart Systems 査読あり
Ye Htet, Thi Thi Zin, Pyke Tin, H. Tamura, K. Kondo, S. Watanabe, E. Chosa
Proceedings - 2024 IEEE 21st International Conference on Mobile Ad-Hoc and Smart Systems, MASS 2024 2024年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Transition-Aware Elderly Action Recognition: Unveiling Insights with CNN-RNN Integration 査読あり
Ye Htet, Thi Thi Zin, H. Tamura, K. Kondo, E. Chosa
2024 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'24), Honolulu, Hawaii 2024年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Basic Research for High-speed Heart Sound Determination using AI 査読あり
Riku Nakashima,Praveen Nuwantha Gunaratne,Hiroki Tamura
2024 ICAROB 2024年2月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Verification of Determination Possibility Using Convolutional Autoencoder for Machine Tool Abnormality Detection 査読あり
Yuta Sumoto,Praveen Nuwantha Gunaratne,Hiroki Tamura
2024 ICAROB 2024年2月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Advancements in Real-Time Biomechanical Analysis of Lumbar Burden Utilizing Stereoscope 査読あり
Taufik Hidayat Soesilo,Praveen Nuwantha Gunaratne,Hiroki Tamura
2024 ICAROB 2024年2月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Design and Development of a Flexible Active Ankle Joint Orthosis for Locomotion Assistance 査読あり
Praveen Nuwantha Gunaratne,Hiroki Tamura
2024 ICAROB 2024年2月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Classification of Faulty Motor Sound Using Convolutional Neural Networks 査読あり
Md Shafayet Jamil,Praveen Nuwantha Gunaratne,Hiroki Tamura
2024 ICAROB 2024年2月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）