Yutaka Satoh - RankMe

105 papers A* 9A 7B 8C 4Misc 4Journal 38Unranked 35

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	3D Annotation System Based on 3D Gaussian Splatting. HCI (60) Haruya Ishigami, Tomomi Sato, Kenji Iwata, Yutaka Satoh
2025	—	`conf`	Anomaly Detection Through Remote Vibration Measurement Using Neuromorphic Event-Based Camera. HCI (6) Yosuke Ishikawa, Tomomi Sato, Kenji Iwata, Yutaka Satoh
2025	J	`jnl`	Guidelines for External Disturbance Factors in the Use of OCR in Real-World Environments. CoRR Kenji Iwata, Eiki Ishidera, Toshifumi Yamaai, Yutaka Satoh, Hiroshi Tanaka, Katsuhiko Takahashi, Akio Furuhata, Yoshihisa Tanabe, Hiroshi Matsumura
2025	—	`conf`	I Can See All of You: Supporting User Awareness with Augmented Field-of-View for Remote Collaborative Work. ICSR+AI (1) Ryota Suzuki, Mina Takao, Kosei Shino, Yoshinori Kobayashi, Kenji Iwata, Tomomi Satoh, Yutaka Satoh, Naoki Uchida, Akiko Yamazaki, Keiichi Yamazaki, Felix Bergmann, Karola Pitsch
2024	—	`conf`	Formula-Supervised Visual-Geometric Pre-training. ECCV (22) Ryosuke Yamada, Kensho Hara, Hirokatsu Kataoka, Koshi Makihara, Nakamasa Inoue, Rio Yokota, Yutaka Satoh
2024	J	`jnl`	Formula-Supervised Visual-Geometric Pre-training. CoRR Ryosuke Yamada, Kensho Hara, Hirokatsu Kataoka, Koshi Makihara, Nakamasa Inoue, Rio Yokota, Yutaka Satoh
2024	J	`jnl`	Masked Structural Point Cloud Modeling to Learning 3D Representation. IEEE Access Ryosuke Yamada, Ryu Tadokoro, Yue Qiu, Hirokatsu Kataoka, Yutaka Satoh
2024	A	`conf`	Subtle-Diff: A Dataset for Precise Recognition of Subtle Differences Among Visually Similar Objects. IROS Fumiya Matsuzawa, Yue Qiu, Yanjun Sun, Kenji Iwata, Hirokatsu Kataoka, Yutaka Satoh
2023	A	`conf`	3D Change Localization and Captioning from Dynamic Scans of Indoor Scenes. WACV Yue Qiu, Shintaro Yamamoto, Ryosuke Yamada, Ryota Suzuki, Hirokatsu Kataoka, Kenji Iwata, Yutaka Satoh
2023	J	`jnl`	Does Formula-Driven Supervised Learning Work on Small Datasets? IEEE Access Kodai Nakashima, Hirokatsu Kataoka, Yutaka Satoh
2023	—	`conf`	Estimation of Human Condition at Disaster Site Using Aerial Drone Images. ICCV (Workshops) Tomoki Arai, Kenji Iwata, Kensho Hara, Yutaka Satoh
2023	J	`jnl`	Estimation of Human Condition at Disaster Site Using Aerial Drone Images. CoRR Tomoki Arai, Kenji Iwata, Kensho Hara, Yutaka Satoh
2023	A*	`conf`	Question Generation for Uncertainty Elimination in Referring Expressions in 3D Environments. ICRA Fumiya Matsuzawa, Yue Qiu, Kenji Iwata, Hirokatsu Kataoka, Yutaka Satoh
2023	A	`conf`	VirtualHome Action Genome: A Simulated Spatio-Temporal Scene Graph Dataset with Consistent Relationship Labels. WACV Yue Qiu, Yoshiki Nagasaki, Kensho Hara, Hirokatsu Kataoka, Ryota Suzuki, Kenji Iwata, Yutaka Satoh
2022	A*	`conf`	Can Vision Transformers Learn without Natural Images? AAAI Kodai Nakashima, Hirokatsu Kataoka, Asato Matsumoto, Kenji Iwata, Nakamasa Inoue, Yutaka Satoh
2022	J	`jnl`	Pre-Training Without Natural Images. Int. J. Comput. Vis. Hirokatsu Kataoka, Kazushige Okayasu, Asato Matsumoto, Eisuke Yamagata, Ryosuke Yamada, Nakamasa Inoue, Akio Nakamura, Yutaka Satoh
2022	J	`jnl`	Predicting Appearance of Vehicles From Blind Spots Based on Pedestrian Behaviors at Crossroads. IEEE Trans. Intell. Transp. Syst. Kensho Hara, Hirokatsu Kataoka, Masaki Inaba, Kenichi Narioka, Ryusuke Hotta, Yutaka Satoh
2022	—	`conf`	Scene Change Captioning in Real Scenarios. HCI (35) Yue Qiu, Kodai Nakashima, Yutaka Satoh, Ryota Suzuki, Kenji Iwata, Hirokatsu Kataoka
2021	A*	`conf`	Describing and Localizing Multiple Changes with Transformers. ICCV Yue Qiu, Shintaro Yamamoto, Kodai Nakashima, Ryota Suzuki, Kenji Iwata, Hirokatsu Kataoka, Yutaka Satoh
2021	J	`jnl`	Describing and Localizing Multiple Changes with Transformers. CoRR Yue Qiu, Shintaro Yamamoto, Kodai Nakashima, Ryota Suzuki, Kenji Iwata, Hirokatsu Kataoka, Yutaka Satoh
2021	—	`conf`	Formula-driven Supervised Learning with Recursive Tiling Patterns. ICCVW Hirokatsu Kataoka, Asato Matsumoto, Ryosuke Yamada, Yutaka Satoh, Eisuke Yamagata, Nakamasa Inoue
2021	—	`conf`	Omnidirectional Flick View. HCI (9) Ryota Suzuki, Tomomi Sato, Kenji Iwata, Yutaka Satoh
2021	J	`jnl`	Pre-training without Natural Images. CoRR Hirokatsu Kataoka, Kazushige Okayasu, Asato Matsumoto, Eisuke Yamagata, Ryosuke Yamada, Nakamasa Inoue, Akio Nakamura, Yutaka Satoh
2021	A	`conf`	Viewpoint-agnostic Image Rendering. WACV Hiroaki Aizawa, Hirokatsu Kataoka, Yutaka Satoh, Kunihito Kato
2020	J	`jnl`	3D-Aware Scene Change Captioning From Multiview Images. IEEE Robotics Autom. Lett. Yue Qiu, Yutaka Satoh, Ryota Suzuki, Kenji Iwata, Hirokatsu Kataoka
2020	—	`conf`	AI-Based 360-degree Video Generation from Monocular Video for Immersive Experience. IUI Companion Kazuma Asano, Ryota Suzuki, Yue Qiu, Yutaka Satoh
2020	B	`conf`	Disentangle, Assemble, and Synthesize: Unsupervised Learning to Disentangle Appearance and Location. ICPR Hiroaki Aizawa, Hirokatsu Kataoka, Yutaka Satoh, Kunihito Kato
2020	J	`jnl`	Indoor Scene Change Captioning Based on Multimodality Data. Sensors Yue Qiu, Yutaka Satoh, Ryota Suzuki, Kenji Iwata, Hirokatsu Kataoka
2020	A*	`conf`	Joint Pedestrian Detection and Risk-level Prediction with Motion-Representation-by-Detection. ICRA Hirokatsu Kataoka, Teppei Suzuki, Kodai Nakashima, Yutaka Satoh, Yoshimitsu Aoki
2020	J	`jnl`	Multi-View Visual Question Answering with Active Viewpoint Selection. Sensors Yue Qiu, Yutaka Satoh, Ryota Suzuki, Kenji Iwata, Hirokatsu Kataoka
2020	—	`conf`	Multi-view Visual Question Answering Dataset for Real Environment Applications. HCI (37) Yue Qiu, Yutaka Satoh, Ryota Suzuki, Kenji Iwata
2020	—	`conf`	Pre-training Without Natural Images. ACCV (6) Hirokatsu Kataoka, Kazushige Okayasu, Asato Matsumoto, Eisuke Yamagata, Ryosuke Yamada, Nakamasa Inoue, Akio Nakamura, Yutaka Satoh
2020	—	`conf`	Predicting Vehicles Appearing from Blind Spots Based on Pedestrian Behaviors. ITSC Kensho Hara, Hirokatsu Kataoka, Masaki Inaba, Kenichi Narioka, Ryusuke Hotta, Yutaka Satoh
2020	—	`conf`	Single Image Contrast Enhancement by Training the HDR Camera Data. HCI (1) Kenji Iwata, Ryota Suzuki, Yue Qiu, Yutaka Satoh
2020	J	`jnl`	Weakly Supervised Dataset Collection for Robust Person Detection. CoRR Munetaka Minoguchi, Ken Okayama, Yutaka Satoh, Hirokatsu Kataoka
2020	J	`jnl`	Would Mega-scale Datasets Further Enhance Spatiotemporal 3D CNNs? CoRR Hirokatsu Kataoka, Tenga Wakamiya, Kensho Hara, Yutaka Satoh
2019	J	`jnl`	Foreground detection based on co-occurrence background model with hypothesis on degradation modification in dynamic scenes. Signal Process. Wenjun Zhou, Shun'ichi Kaneko, Manabu Hashimoto, Yutaka Satoh, Dong Liang
2019	—	`conf`	Incorporating 3D Information Into Visual Question Answering. 3DV Yue Qiu, Yutaka Satoh, Ryota Suzuki, Hirokatsu Kataoka
2019	—	`conf`	Ten-Million-Order Human Database for World-Wide Fashion Culture Analysis. CVPR Workshops Hirokatsu Kataoka, Yutaka Satoh, Kaori Abe, Munetaka Minoguchi, Akio Nakamura
2019	A*	`conf`	Unsupervised Out-of-context Action Understanding. ICRA Hirokatsu Kataoka, Yutaka Satoh
2018	B	`conf`	A Co-occurrence Background Model with Hypothesis on Degradation Modification for Object Detection in Strong Background Changes. ICPR Wenjun Zhou, Shun'ichi Kaneko, Manabu Hashimoto, Yutaka Satoh, Dong Liang
2018	—	`conf`	AI-Based VR Earthquake Simulator. HCI (10) Ryota Suzuki, Ryoki Iitoi, Yue Qiu, Kenji Iwata, Yutaka Satoh
2018	A*	`conf`	Anticipating Traffic Accidents With Adaptive Loss and Large-Scale Incident DB. CVPR Tomoyuki Suzuki, Hirokatsu Kataoka, Yoshimitsu Aoki, Yutaka Satoh
2018	J	`jnl`	Anticipating Traffic Accidents with Adaptive Loss and Large-scale Incident DB. CoRR Tomoyuki Suzuki, Hirokatsu Kataoka, Yoshimitsu Aoki, Yutaka Satoh
2018	A*	`conf`	Can Spatiotemporal 3D CNNs Retrace the History of 2D CNNs and ImageNet? CVPR Kensho Hara, Hirokatsu Kataoka, Yutaka Satoh
2018	—	`conf`	Co-occurrence Background Model with Hypothesis on Degradation Modification for Robust Object Detection. VISIGRAPP (5: VISAPP) Wenjun Zhou, Shun'ichi Kaneko, Manabu Hashimoto, Yutaka Satoh, Dong Liang
2018	A*	`conf`	Drive Video Analysis for the Detection of Traffic Near-Miss Incidents. ICRA Hirokatsu Kataoka, Teppei Suzuki, Shoko Oikawa, Yasuhiro Matsui, Yutaka Satoh
2018	J	`jnl`	Drive Video Analysis for the Detection of Traffic Near-Miss Incidents. CoRR Hirokatsu Kataoka, Teppei Suzuki, Shoko Oikawa, Yasuhiro Matsui, Yutaka Satoh
2018	C	`conf`	Fashion Culture Database: Construction of Database for World-wide Fashion Analysis. ICARCV Kaori Abe, Munetaka Minoguchi, Teppei Suzuki, Tomoyuki Suzuki, Naofumi Akimoto, Yue Qiu, Ryota Suzuki, Kenji Iwata, Yutaka Satoh, Hirokatsu Kataoka
2018	B	`conf`	Occlusion Handling Human Detection with Refocused Images. ICPR Hirokatsu Kataoka, Shuhei Ohki, Kenji Iwata, Yutaka Satoh
2018	—	`conf`	Recognizing People in Blind Spots Based on Surrounding Behavior. ECCV Workshops (2) Kensho Hara, Hirokatsu Kataoka, Masaki Inaba, Kenichi Narioka, Yutaka Satoh
2018	C	`conf`	Semantic Change Detection. ICARCV Tomoyuki Suzuki, Munetaka Minoguchi, Ryota Suzuki, Akio Nakamura, Kenji Iwata, Yutaka Satoh, Hirokatsu Kataoka
2018	J	`jnl`	Temporal and Fine-Grained Pedestrian Action Recognition on Driving Recorder Database. Sensors Hirokatsu Kataoka, Yutaka Satoh, Yoshimitsu Aoki, Shoko Oikawa, Yasuhiro Matsui
2018	B	`conf`	Towards Good Practice for Action Recognition with Spatiotemporal 3D Convolutions. ICPR Kensho Hara, Hirokatsu Kataoka, Yutaka Satoh
2017	J	`jnl`	Can Spatiotemporal 3D CNNs Retrace the History of 2D CNNs and ImageNet? CoRR Kensho Hara, Hirokatsu Kataoka, Yutaka Satoh
2017	J	`jnl`	Changing Fashion Cultures. CoRR Kaori Abe, Teppei Suzuki, Shunya Ueta, Akio Nakamura, Yutaka Satoh, Hirokatsu Kataoka
2017	J	`jnl`	Collaborative Descriptors: Convolutional Maps for Preprocessing. CoRR Hirokatsu Kataoka, Kaori Abe, Akio Nakamura, Yutaka Satoh
2017	A*	`conf`	Illuminant-Camera Communication to Observe Moving Objects under Strong External Light by Spread Spectrum Modulation. CVPR Ryusuke Sagawa, Yutaka Satoh
2017	—	`conf`	Learning Spatio-Temporal Features with 3D Residual Networks for Action Recognition. ICCV Workshops Kensho Hara, Hirokatsu Kataoka, Yutaka Satoh
2017	J	`jnl`	Learning Spatio-Temporal Features with 3D Residual Networks for Action Recognition. CoRR Kensho Hara, Hirokatsu Kataoka, Yutaka Satoh
2017	A	`conf`	Text Detection in Traffic Informatory Signs Using Synthetic Data. ICDAR Fangge Chen, Hirokatsu Kataoka, Yutaka Satoh
2016	—	`conf`	Activity Prediction using a Space-Time CNN and Bayesian Framework. VISIGRAPP (4: VISAPP) Hirokatsu Kataoka, Yoshimitsu Aoki, Kenji Iwata, Yutaka Satoh
2016	—	`conf`	Dominant Codewords Selection with Topic Model for Action Recognition. CVPR Workshops Hirokatsu Kataoka, Kenji Iwata, Yutaka Satoh, Masaki Hayashi, Yoshimitsu Aoki, Slobodan Ilic
2016	J	`jnl`	Dominant Codewords Selection with Topic Model for Action Recognition. CoRR Hirokatsu Kataoka, Masaki Hayashi, Kenji Iwata, Yutaka Satoh, Yoshimitsu Aoki, Slobodan Ilic
2016	—	`conf`	Human Action Recognition Without Human. ECCV Workshops (3) Yun He, Soma Shirakabe, Yutaka Satoh, Hirokatsu Kataoka
2016	J	`jnl`	Human Action Recognition without Human. CoRR Yun He, Soma Shirakabe, Yutaka Satoh, Hirokatsu Kataoka
2016	—	`conf`	Motion Representation with Acceleration Images. ECCV Workshops (3) Hirokatsu Kataoka, Yun He, Soma Shirakabe, Yutaka Satoh
2016	J	`jnl`	Motion Representation with Acceleration Images. CoRR Hirokatsu Kataoka, Yun He, Soma Shirakabe, Yutaka Satoh
2016	A	`conf`	Recognition of Transitional Action for Short-Term Action Prediction using Discriminative Temporal CNN Feature. BMVC Hirokatsu Kataoka, Yudai Miyashita, Masaki Hayashi, Kenji Iwata, Yutaka Satoh
2016	J	`jnl`	Semantic Change Detection with Hypermaps. CoRR Hirokatsu Kataoka, Soma Shirakabe, Yudai Miyashita, Akio Nakamura, Kenji Iwata, Yutaka Satoh
2016	—	`conf`	Usability and Safety of a HUD During Powered Chair Navigation: A Pilot Study. HCI (9) Katie Seaborn, Yutaka Satoh, Deborah I. Fels
2015	J	`jnl`	A Robust Appearance Model and Similarity Measure for Image Matching. J. Robotics Mechatronics Dong Liang, Shun'ichi Kaneko, Yutaka Satoh
2015	—	`conf`	Evaluation of Vision-Based Human Activity Recognition in Dense Trajectory Framework. ISVC (1) Hirokatsu Kataoka, Yoshimitsu Aoki, Kenji Iwata, Yutaka Satoh
2015	J	`jnl`	Feature Evaluation of Deep Convolutional Neural Networks for Object Recognition and Detection. CoRR Hirokatsu Kataoka, Kenji Iwata, Yutaka Satoh
2015	—	`conf`	Fine-Grained Walking Activity Recognition via Driving Recorder Dataset. ITSC Hirokatsu Kataoka, Yoshimitsu Aoki, Yutaka Satoh, Shoko Oikawa, Yasuhiro Matsui
2014	—	`conf`	Extended Co-occurrence HOG with Dense Trajectories for Fine-Grained Activity Recognition. ACCV (5) Hirokatsu Kataoka, Kiyoshi Hashimoto, Kenji Iwata, Yutaka Satoh, Nassir Navab, Slobodan Ilic, Yoshimitsu Aoki
2014	J	`jnl`	Extended Feature Descriptor and Vehicle Motion Model with Tracking-by-Detection for Pedestrian Active Safety. IEICE Trans. Inf. Syst. Hirokatsu Kataoka, Kimimasa Tamura, Kenji Iwata, Yutaka Satoh, Yasuhiro Matsui, Yoshimitsu Aoki
2013	Misc	`conf`	Big Trajectory Data Analysis for Clustering and Anomaly Detection. MVA Hirokatsu Kataoka, Kenji Iwata, Yutaka Satoh, Ikushi Yoda, Masaki Onishi, Yoshimitsu Aoki
2013	B	`conf`	Co-occurrence-based adaptive background model for robust object detection. AVSS Dong Liang, Shun'ichi Kaneko, Manabu Hashimoto, Kenji Iwata, Xinyue Zhao, Yutaka Satoh
2013	J	`jnl`	Robust face recognition using the GAP feature. Pattern Recognit. Xinyue Zhao, Zaixing He, Shuyou Zhang, Shun'ichi Kaneko, Yutaka Satoh
2013	C	`conf`	Robust feature descriptor and vehicle motion model with tracking-by-detection for active safety. IECON Hirokatsu Kataoka, Kimimasa Tamura, Yoshimitsu Aoki, Yasuhiro Matsui, Kenji Iwata, Yutaka Satoh
2013	—	`conf`	Vision-Based Tracking for Ecology Analysis of the Cricket. CANDAR Yasutake Okuda, Satoru Takahashi, Kuniaki Kawabata, Hitoshi Aonuma, Kenji Iwata, Yutaka Satoh
2012	J	`jnl`	Robust Tracking Using Particle Filter with a Hybrid Feature. IEICE Trans. Inf. Syst. Xinyue Zhao, Yutaka Satoh, Hidenori Takauji, Shun'ichi Kaneko
2011	—	`conf`	Miniature humanoid MH-1 for wearable telecommunicator. ROBIO Yuichi Tsumaki, Nobuyuki Inoue, Yutaka Satoh, Riichiro Tadakuma
2011	J	`jnl`	Object detection based on a robust and accurate statistical multi-point-pair model. Pattern Recognit. Xinyue Zhao, Yutaka Satoh, Hidenori Takauji, Shun'ichi Kaneko, Kenji Iwata, Ryushi Ozaki
2011	B	`conf`	Robust adapted object detection under complex environment. AVSS Xinyue Zhao, Yutaka Satoh, Hidenori Takauji, Shun'ichi Kaneko, Kenji Iwata, Ryushi Ozaki
2009	Misc	`conf`	Lavatube - A Software Framework for Computer Vision Research and Development. MVA Kenji Iwata, Yutaka Satoh, Katsuhiko Sakaue
2009	Misc	`conf`	Statistical Reach Feature Method and Its Application to Template Matching. MVA Yutaka Satoh, Kenji Iwata, Katsuhiko Sakaue
2009	—	`conf`	Toward a HLAC-Based Histological Diagnosis System for Virtual-Slide Images. BLISS Kenji Iwata, Yutaka Satoh, Takumi Kobayashi, Toshio Ueshiba, Katsuhiko Sakaue, Kôiti Hasida, Nobuyuki Otsu, Yoichi Kameda, Yohei Miyagi, Yuji Sakuma, Keiji Kikuchi, Eiju Tsuchiya
2008	—	`conf`	Development of Software for Real-Time Unusual Motions Detection by Using CHLAC. BLISS Kenji Iwata, Yutaka Satoh, Katsuhiko Sakaue, Takumi Kobayashi, Nobuyuki Otsu
2007	J	`jnl`	An Omnidirectional Stereo Vision-Based Smart Wheelchair. EURASIP J. Image Video Process. Yutaka Satoh, Katsuhiko Sakaue
2007	—	`conf`	Application of the Unusual Motion Detection Using CHLAC to the Video Surveillance. ICONIP (2) Kenji Iwata, Yutaka Satoh, Takumi Kobayashi, Ikushi Yoda, Nobuyuki Otsu
2006	—	`conf`	Development of Omni-directional Stereo Vision-based Intelligent Electric Wheelchair. ICPR (4) Yutaka Satoh, Katsuhiko Sakaue
2006	C	`conf`	Hybrid Camera Surveillance System by Using Stereo Omni-directional System and Robust Human Detection. PSIVT Kenji Iwata, Yutaka Satoh, Ikushi Yoda, Katsuhiko Sakaue
2006	J	`jnl`	Moving object detection by mobile Stereo Omni-directional System (SOS) using spherical depth image. Pattern Anal. Appl. Sanae Shimizu, Kazuhiko Yamamoto, Caihua Wang, Yutaka Satoh, Hideki Tanahashi, Yoshinori Niwa
2004	J	`jnl`	Location and pose estimation for active vision using panoramic edge histograms. Syst. Comput. Jpn. Caihua Wang, Hideki Tanahashi, Yutaka Satoh, Hidekazu Hirayu, Yoshinori Niwa, Kazuhiko Yamamoto
2004	J	`jnl`	Robust object detection and segmentation by peripheral increment sign correlation image. Syst. Comput. Jpn. Yutaka Satoh, Shun'ichi Kaneko, Satoru Igarashi
2004	J	`jnl`	Robust object detection using a Radial Reach Filter (RRF). Syst. Comput. Jpn. Yutaka Satoh, Shun'ichi Kaneko, Yoshinori Niwa, Kazuhiko Yamamoto
2003	B	`conf`	Event Detection for a Visual Surveillance System Using Stereo Omni-directional System. KES Hiroki Watanabe, Hideki Tanahashi, Yutaka Satoh, Yoshinori Niwa, Kazuhiko Yamamoto
2003	A	`conf`	Robust object detection for intelligent surveillance systems based on radial reach correlation (RRC). IROS Yutaka Satoh, Caihua Wang, Yoshinori Niwa, Hideki Tanahashi, Kazuhiko Yamamoto
2003	—	`conf`	Slant estimation for active vision using edge directions in omnidirectional images. ICIP (1) Caihua Wang, Hideki Tanahashi, Yutaka Satoh, Hidekazu Hirayu, Yutaka Sato, Yoshinori Niwa, Kazuhiko Yamamoto
2003	J	`jnl`	Using selective correlation coefficient for robust image registration. Pattern Recognit. Shun'ichi Kaneko, Yutaka Satoh, Satoru Igarashi
2002	—	`conf`	Robust Event Detection by Radial Reach Filter (RRF). ICPR (2) Yutaka Satoh, Hideki Tanahashi, Caihua Wang, Shun'ichi Kaneko, Yoshinori Niwa, Kazuhiko Yamamoto
2002	Misc	`conf`	Robust Object Detection and Segmentation Based on Radial Reach Correlation. MVA Yutaka Satoh, Hideki Tanahashi, Shun'ichi Kaneko, Yoshinori Niwa, Kazuhiko Yamamoto
2000	B	`conf`	Non-restricted measurement of walking distance. SMC Koichi Sagawa, Hikaru Inooka, Yutaka Satoh