Keita Takahashi

122 papers A* 5A 3B 23C 8Misc 3Journal 46Unranked 34

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Coded-E2LF: Coded Aperture Light Field Imaging from Events. CoRR Tomoya Tsuchida, Keita Takahashi, Chihiro Tsutake, Toshiaki Fujii, Hajime Nagahara
2025	J	`jnl`	Events Meet Phase-Shifting Digital Holography: Practical Acquisition, Theory, and Algorithms. CoRR Ittetsu Uchiyama, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2025	J	`jnl`	Fast Sign Retrieval via Sub-band Convolution: An Elementary Extension of Binary Classification. CoRR Fuma Ito, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2025	J	`jnl`	Transport of Event Equation: Phase Retrieval from Defocus Events. CoRR Kaito Hori, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2024	J	`jnl`	An Efficient Compression Method for Sign Information of DCT Coefficients via Sign Retrieval. CoRR Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2024	J	`jnl`	Holographic Phase Retrieval via Wirtinger Flow: Cartesian Form with Auxiliary Amplitude. CoRR Ittetsu Uchiyama, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2024	C	`conf`	Mono+Sub: Compressing Light Field as Monocular Image and Subsidiary Data. VCIP Ryosuke Imazu, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2024	A*	`conf`	Time-Efficient Light-Field Acquisition Using Coded Aperture and Events. CVPR Shuji Habuchi, Keita Takahashi, Chihiro Tsutake, Toshiaki Fujii, Hajime Nagahara
2024	J	`jnl`	Time-Efficient Light-Field Acquisition Using Coded Aperture and Events. CoRR Shuji Habuchi, Keita Takahashi, Chihiro Tsutake, Toshiaki Fujii, Hajime Nagahara
2024	C	`conf`	Warm-start NeRF: Accelerating Per-scene Training of NeRF-based Light-Field Representation. VCIP Takuto Nishio, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2023	J	`jnl`	Reconstructing Continuous Light Field From Single Coded Image. IEEE Access Yuya Ishikawa, Keita Takahashi, Chihiro Tsutake, Toshiaki Fujii
2023	J	`jnl`	Reconstructing Continuous Light Field From Single Coded Image. CoRR Yuya Ishikawa, Keita Takahashi, Chihiro Tsutake, Toshiaki Fujii
2022	A*	`conf`	Acquiring a Dynamic Light Field through a Single-Shot Coded Image. CVPR Ryoya Mizuno, Keita Takahashi, Michitaka Yoshida, Chihiro Tsutake, Toshiaki Fujii, Hajime Nagahara
2022	J	`jnl`	Acquiring a Dynamic Light Field through a Single-Shot Coded Image. CoRR Ryoya Mizuno, Keita Takahashi, Michitaka Yoshida, Chihiro Tsutake, Toshiaki Fujii, Hajime Nagahara
2022	J	`jnl`	Compressing Sign Information in DCT-based Image Coding via Deep Sign Retrieval. CoRR Kei Suzuki, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2022	J	`jnl`	Denoising multi-view images by soft thresholding: A short-time DFT approach. Signal Process. Image Commun. Keigo Tomita, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2022	J	`jnl`	Time-Multiplexed Coded Aperture and Coded Focal Stack -Comparative Study on Snapshot Compressive Light Field Imaging. IEICE Trans. Inf. Syst. Kohei Tateishi, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2022	J	`jnl`	Unrolled Network for Light Field Display. IEICE Trans. Inf. Syst. Kotaro Matsuura, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2022	J	`jnl`	Unsupervised disparity estimation from light field using plug-and-play weighted warping loss. Signal Process. Image Commun. Taisei Iwatsuki, Keita Takahashi, Toshiaki Fujii
2021	B	`conf`	An Efficient Compression Method For Sign Information Of DCT Coefficients Via Sign Retrieval. ICIP Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2021	B	`conf`	An Efficient Image Compression Method Based On Neural Network: An Overfitting Approach. ICIP Yu Mikami, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2021	J	`jnl`	Binary and Rotational Coded-Aperture Imaging for Dynamic Light Fields. IEICE Trans. Inf. Syst. Kohei Sakai, Keita Takahashi, Toshiaki Fujii
2021	—	`conf`	Enhancing Angular Resolution of Layered Light-Field Display by Using Monochrome Layers. SD&A Kotaro Matsuura, Keita Takahashi, Toshiaki Fujii
2021	B	`conf`	Factorized Modulation For Singleshot Lightfield Acquisition. ICIP Kohei Tateishi, Kohei Sakai, Chihiro Tsutake, Keita Takahashi, Toshiaki Fujii
2021	J	`jnl`	Simultaneous Attack on CNN-Based Monocular Depth Estimation and Optical Flow Estimation. IEICE Trans. Inf. Syst. Koichiro Yamanaka, Keita Takahashi, Toshiaki Fujii, Ryuraroh Matsumoto
2020	—	`conf`	Acquiring Dynamic Light Fields Through Coded Aperture Camera. ECCV (19) Kohei Sakai, Keita Takahashi, Toshiaki Fujii, Hajime Nagahara
2020	J	`jnl`	Adversarial Patch Attacks on Monocular Depth Estimation Networks. IEEE Access Koichiro Yamanaka, Ryutaroh Matsumoto, Keita Takahashi, Toshiaki Fujii
2020	J	`jnl`	Adversarial Patch Attacks on Monocular Depth Estimation Networks. CoRR Koichiro Yamanaka, Ryutaroh Matsumoto, Keita Takahashi, Toshiaki Fujii
2020	J	`jnl`	Comparison of Layer Operations and Optimization Methods for Light Field Display. IEEE Access Keita Maruyama, Keita Takahashi, Toshiaki Fujii
2020	J	`jnl`	Good Group Sparsity Prior for Light Field Interpolation. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Shu Fujita, Keita Takahashi, Toshiaki Fujii
2019	B	`conf`	A 3-D Display Pipeline from Coded-Aperture Camera to Tensor Light-Field Display Through CNN. ICIP Keita Maruyama, Yasutaka Inagaki, Keita Takahashi, Toshiaki Fujii, Hajime Nagahara
2019	—	`conf`	A comprehensive framework for visual quality assessment of light field tensor displays. IQSP Irene Viola, Keita Takahashi, Toshiaki Fujii, Touradj Ebrahimi
2019	J	`jnl`	Fast and Robust Disparity Estimation from Noisy Light Fields Using 1-D Slanted Filters. IEICE Trans. Inf. Syst. Gou Houben, Shu Fujita, Keita Takahashi, Toshiaki Fujii
2019	J	`jnl`	High-Quality Multi-View Image Extraction from a Light Field Camera Considering Its Physical Pixel Arrangement. IEICE Trans. Inf. Syst. Shu Fujita, Keita Takahashi, Toshiaki Fujii
2019	C	`conf`	LF-TSP: Traveling salesman problem for HEVC-based light-field coding. VCIP Kota Imaeda, Kohei Isechi, Keita Takahashi, Toshiaki Fujii, Yukihiro Bandoh, Takehito Miyazawa, Seishi Takamura, Atsushi Shimizu
2019	J	`jnl`	Light Field Coding Using Weighted Binary Images. IEICE Trans. Inf. Syst. Koji Komatsu, Kohei Isechi, Keita Takahashi, Toshiaki Fujii
2018	—	`conf`	3D Imaging System using Multi-focus Plenoptic Camera and Tensor Display. IC3D Mehrdad Teratani Panahpourtehrani, Shu Fujita, Wenzhe Ouyang, Keita Takahashi, Toshiaki Fujii
2018	J	`jnl`	Designing Coded Aperture Camera Based on PCA and NMF for Light Field Acquisition. IEICE Trans. Inf. Syst. Yusuke Yagi, Keita Takahashi, Toshiaki Fujii, Toshiki Sonoda, Hajime Nagahara
2018	B	`conf`	Fast and Robust Disparity Estimation for Noisy Light Fields. ICIP Gou Houben, Shu Fujita, Keita Takahashi, Toshiaki Fujii
2018	J	`jnl`	From Focal Stack to Tensor Light-Field Display. IEEE Trans. Image Process. Keita Takahashi, Yuto Kobayashi, Toshiaki Fujii
2018	B	`conf`	How Should we Handle 4D Light Fields with CNNS? ICIP Shu Fujita, Keita Takahashi, Toshiaki Fujii
2018	—	`conf`	Learning to Capture Light Fields Through a Coded Aperture Camera. ECCV (7) Yasutaka Inagaki, Yuto Kobayashi, Keita Takahashi, Toshiaki Fujii, Hajime Nagahara
2018	B	`conf`	Scalable Light Field Coding Using Weighted Binary Images. ICIP Koji Komatsu, Keita Takahashi, Toshiaki Fujii
2017	J	`jnl`	Estimation of Dense Displacement by Scale Invariant Polynomial Expansion of Heterogeneous Multi-View Images. IEICE Trans. Inf. Syst. Kazuki Shibata, Mehrdad Panahpour Tehrani, Keita Takahashi, Toshiaki Fujii
2017	Misc	`conf`	From focal stacks to tensor display: A method for light field visualization without multi-view images. ICASSP Yuto Kobayashi, Keita Takahashi, Toshiaki Fujii
2017	B	`conf`	Good group sparsity prior for light field interpolation. ICIP Keita Takahashi, Shu Fujita, Toshiaki Fujii
2017	B	`conf`	PCA-coded aperture for light field photography. ICIP Yusuke Yagi, Keita Takahashi, Toshiaki Fujii, Toshiki Sonoda, Hajime Nagahara
2017	J	`jnl`	Physically-Correct Light-Field Factorization for Perspective Images. IEICE Trans. Inf. Syst. Shu Kondo, Yuto Kobayashi, Keita Takahashi, Toshiaki Fujii
2017	J	`jnl`	Sheared EPI Analysis for Disparity Estimation from Light Fields. IEICE Trans. Inf. Syst. Takahiro Suzuki, Keita Takahashi, Toshiaki Fujii
2016	B	`conf`	Disparity estimation from light fields using sheared EPI analysis. ICIP Takahiro Suzuki, Keita Takahashi, Toshiaki Fujii
2016	J	`jnl`	Weighted 4D-DCT Basis for Compressively Sampled Light Fields. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Yusuke Miyagi, Keita Takahashi, Toshiaki Fujii
2015	—	`conf`	A practical implementation of free viewpoint video system for soccer games. Three-Dimensional Image Processing, Measurement (3DIPM), and Applications Ryo Suenaga, Kazuyoshi Suzuki, Tomoyuki Tezuka, Mehrdad Panahpour Tehrani, Keita Takahashi, Toshiaki Fujii
2015	—	`conf`	Data conversion from multi-view cameras to layered light field display for aliasing-free 3D visualization. SD&A Toyohiro Saito, Keita Takahashi, Mehrdad Panahpour Tehrani, Toshiaki Fujii
2015	C	`conf`	Data format and view synthesis for free-viewpoint video streaming of super multiview video. PCS Takaaki Emori, Mehrdad Panahpour Tehrani, Keita Takahashi, Toshiaki Fujii
2015	—	`conf`	Free-viewpoint video synthesis from mixed resolution multi-view images and low resolution depth maps. SD&A Takaaki Emori, Mehrdad Panahpour Tehrani, Keita Takahashi, Toshiaki Fujii
2015	Misc	`conf`	Joint directional-positional multiplexing for light field acquisition by Kronecker compressed sensing. ICASSP Qiang Yao, Keita Takahashi, Mehrdad Panahpour Tehrani, Toshiaki Fujii
2015	B	`conf`	Rank analysis of a light field for dual-layer 3D displays. ICIP Keita Takahashi, Toyohiro Saito, Mehrdad Panahpour Tehrani, Toshiaki Fujii
2015	—	`conf`	Real-time view synthesis system using active illumination and adaptive space-time cost-volume filtering. APSIPA Sho Nishimura, Shunsuke Yamada, Keita Takahashi, Toshiaki Fujii
2015	B	`conf`	Reconstruction of compressively sampled light fields using a weighted 4D-DCT basis. ICIP Yusuke Miyagi, Keita Takahashi, Mehrdad Panahpour Tehrani, Toshiaki Fujii
2015	B	`conf`	Super-resolution image synthesis using the physical pixel arrangementofalight field camera. ICIP Kazuki Ohashi, Keita Takahashi, Mehrdad Panahpour Tehrani, Toshiaki Fujii
2015	C	`conf`	View synthesis using superpixel based inpainting capable of occlusion handling and hole filling. PCS Tomoyuki Tezuka, Mehrdad Panahpour Tehrani, Kazuyoshi Suzuki, Keita Takahashi, Toshiaki Fujii
2014	—	`conf`	Development of free-viewpoint image synthesis system using time varying projection and spacetime stereo. SD&A Tatsuro Mori, Keita Takahashi, Toshiaki Fujii
2014	J	`jnl`	Facial Expression Recognition Based on Facial Region Segmentation and Modal Value Approach. IEICE Trans. Inf. Syst. Gibran Benitez-Garcia, Gabriel Sanchez-Perez, Héctor Pérez-Meana, Keita Takahashi, Masahide Kaneko
2014	—	`conf`	Joint estimation of high resolution images and depth maps from light field cameras. SD&A Kazuki Ohashi, Keita Takahashi, Toshiaki Fujii
2014	—	`conf`	Least MSE Regression for View Synthesis. 3DV Keita Takahashi, Toshiaki Fujii
2014	J	`jnl`	Reconstruction of Compressively Sampled Ray Space by Statistically Weighted Model. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Qiang Yao, Keita Takahashi, Toshiaki Fujii
2014	—	`conf`	Reconstruction of compressively sampled ray space by using DCT basis and statistically weighted L1 norm optimization. Computational Imaging Qiang Yao, Keita Takahashi, Toshiaki Fujii
2014	—	`conf`	Scene-independent super-resolution for plenoptic cameras. SIGGRAPH Posters Kouta Takeuchi, Shinya Shimizu, Kensaku Fujii, Akira Kojima, Keita Takahashi, Toshiaki Fujii
2014	—	`conf`	Superpixel-based 3D warping using view plus depth data from multiple viewpoints. SD&A Tomoyuki Tezuka, Keita Takahashi, Toshiaki Fujii
2014	Misc	`conf`	Synthesis Error COmpeNsateD Multiview Video plus Depth for representation of multiview video. ICASSP Mehrdad Panahpour Tehrani, Akio Ishikawa, Makoto Okui, Naomi Inoue, Keita Takahashi, Toshiaki Fujii
2013	—	`conf`	Overcomplete compressed sensing of ray space for generating free viewpoint images. APSIPA Qiang Yao, Keita Takahashi, Toshiaki Fujii
2013	—	`conf`	Super-resolution with Adaptive Pixel Weighting Scheme and Its Application to Super-resolved Free-Viewpoint Image Synthesis. SITIS Koichi Hamada, Ryo Nakashima, Keita Takahashi, Takeshi Naemura
2013	—	`conf`	Super-resolved free-viewpoint image synthesis combined with sparse-representation-based super-resolution. APSIPA Ryo Nakashima, Keita Takahashi, Takeshi Naemura
2013	A*	`conf`	Unified environment-adaptive control of accompanying robots using artificial potential field. HRI Kazushi Nakazawa, Keita Takahashi, Masahide Kaneko
2013	B	`conf`	View interpolation sensitive to pixel positions. ICIP Keita Takahashi
2012	A	`conf`	Image Segmentation using Dual Distribution Matching. BMVC Tatsunori Taniai, Viet Quoc Pham, Keita Takahashi, Takeshi Naemura
2012	J	`jnl`	Super-Resolved Free-Viewpoint Image Synthesis Based on View-Dependent Depth Estimation. Inf. Media Technol. Keita Takahashi, Takeshi Naemura
2012	J	`jnl`	Super-Resolved Free-Viewpoint Image Synthesis Based on View-Dependent Depth Estimation. IPSJ Trans. Comput. Vis. Appl. Keita Takahashi, Takeshi Naemura
2012	J	`jnl`	Theoretical Analysis of Multi-View Camera Arrangement and Light-Field Super-Resolution. Inf. Media Technol. Ryo Nakashima, Keita Takahashi, Takeshi Naemura
2012	J	`jnl`	Theoretical Analysis of Multi-View Camera Arrangement and Light-Field Super-Resolution. IPSJ Trans. Comput. Vis. Appl. Ryo Nakashima, Keita Takahashi, Takeshi Naemura
2012	J	`jnl`	Theoretical Analysis of View Interpolation With Inaccurate Depth Information. IEEE Trans. Image Process. Keita Takahashi
2012	C	`conf`	Theoretical analysis on interframe predictive coding with subpixel displacement accuracy - An exhaustive approach. VCIP Keita Takahashi, Masahide Kaneko
2011	A*	`conf`	Foreground-background segmentation using iterated distribution matching. CVPR Viet Quoc Pham, Keita Takahashi, Takeshi Naemura
2011	B	`conf`	Rate-distortion analysis of super-resolution image/video decoding. ICIP Keita Takahashi, Takeshi Naemura, Masayuki Tanaka
2011	J	`jnl`	Stereo Image Retargeting with Shift-Map. IEICE Trans. Inf. Syst. Ryo Nakashima, Kei Utsugi, Keita Takahashi, Takeshi Naemura
2011	—	`conf`	Super-Resolved Free-Viewpoint Image Synthesis Using Semi-global Depth Estimation and Depth-Reliability-Based Regularization. PSIVT (1) Keita Takahashi, Takeshi Naemura
2011	B	`conf`	Super-resolution plane sweeping for free-viewpoint image synthesis. ICIP Keita Takahashi, Masato Ishii, Takeshi Naemura
2011	—	`conf`	Theoretical Analysis of Multi-view Camera Arrangement and Light-Field Super-Resolution. PSIVT (1) Ryo Nakashima, Keita Takahashi, Takeshi Naemura
2010	B	`conf`	Bounding-Box Based Segmentation with Single Min-cut Using Distant Pixel Similarity. ICPR Viet Quoc Pham, Keita Takahashi, Takeshi Naemura
2010	C	`conf`	Direction-adaptive hierarchical decomposition for image coding. PCS Tomokazu Murakami, Keita Takahashi, Takeshi Naemura
2010	J	`jnl`	Joint Rendering and Segmentation of Free-Viewpoint Video. EURASIP J. Image Video Process. Masato Ishii, Keita Takahashi, Takeshi Naemura
2010	J	`jnl`	Live Video Segmentation in Dynamic Backgrounds Using Thermal Vision. Inf. Media Technol. Viet-Quoc Pham, Keita Takahashi, Takeshi Naemura
2010	J	`jnl`	Live Video Segmentation in Dynamic Backgrounds Using Thermal Vision. IPSJ Trans. Comput. Vis. Appl. Viet-Quoc Pham, Keita Takahashi, Takeshi Naemura
2010	J	`jnl`	Optical and Synthetic Focusing Using Liquid Lens Array. Inf. Media Technol. Dongha Lee, Takafumi Koike, Keita Takahashi, Takeshi Naemura
2010	B	`conf`	Performance analysis on multi-view coding with depth map distortion. ICIP Keita Takahashi
2010	—	`conf`	Theory of Optimal View Interpolation with Depth Inaccuracy. ECCV (4) Keita Takahashi
2009	J	`jnl`	Design and Implementation of a Real-Time Video-Based Rendering System Using a Network Camera Array. IEICE Trans. Inf. Syst. Yuichi Taguchi, Keita Takahashi, Takeshi Naemura
2009	B	`conf`	Joint rendering and segmentation of free-viewpoint images. ICIP Masato Ishii, Keita Takahashi, Takeshi Naemura
2009	C	`conf`	Live Video Segmentation in Dynamic Backgrounds Using Thermal Vision. PSIVT Viet Quoc Pham, Keita Takahashi, Takeshi Naemura
2009	—	`conf`	Online segmentation of free-viewpoint video. ICCV Workshops Masato Ishii, Keita Takahashi, Takeshi Naemura
2009	—	`conf`	Real-Time Video Matting Based on Bilayer Segmentation. ACCV (2) Viet Quoc Pham, Keita Takahashi, Takeshi Naemura
2009	J	`jnl`	TransCAIP: A Live 3D TV System Using a Camera Array and an Integral Photography Display with Interactive Control of Viewing Parameters. IEEE Trans. Vis. Comput. Graph. Yuichi Taguchi, Takafumi Koike, Keita Takahashi, Takeshi Naemura
2008	A	`conf`	Foreground segmentation with single reference frame using iterative likelihood estimation and graph-cut. ICME Keita Takahashi, Taketoshi Mori
2008	—	`conf`	Multi-focal compound eye: liquid lens array for computational photography. SIGGRAPH New Tech Demos Kensuke Ueda, Dongha Lee, Takafumi Koike, Keita Takahashi, Takeshi Naemura
2008	—	`conf`	PVLC projector: image projection with imperceptible pixel-level metadata. SIGGRAPH Posters Sho Kimura, Ryo Oguchi, Hideo Tanida, Yasuaki Kakehi, Keita Takahashi, Takeshi Naemura
2008	—	`conf`	Photonastic surface: pin matrix type display controlled with light. Advances in Computer Entertainment Technology Ryo Oguchi, Yasuaki Kakehi, Keita Takahashi, Takeshi Naemura
2008	B	`conf`	Rate-distortion performance of multi-view image coding with subsampling of viewpoints. ICIP Masato Ishii, Keita Takahashi, Takeshi Naemura
2008	B	`conf`	Theoretical model and optimal prefilter for view interpolation. ICIP Keita Takahashi, Takeshi Naemura
2008	—	`conf`	TransCAIP: live transmission of light field from a camera array to an integral photography display. SIGGRAPH ASIA Art Gallery & Emerging Technologies Yuichi Taguchi, Takafumi Koike, Keita Takahashi, Takeshi Naemura
2007	—	`conf`	How does Subsampling of Multi-View Images Affect the Rate-Distortion Performance? ICIP (1) Keita Takahashi, Takeshi Naemura
2006	B	`conf`	A Theory of Aliasing Separation for Light Field Data. ICIP Keita Takahashi, Takeshi Naemura
2006	J	`jnl`	Focus measurement and all in-focus image synthesis for light-field rendering. Syst. Comput. Jpn. Keita Takahashi, Akira Kubota, Takeshi Naemura
2006	J	`jnl`	Layered light-field rendering with focus measurement. Signal Process. Image Commun. Keita Takahashi, Takeshi Naemura
2005	—	`conf`	All in-focus light field live with thousands of lenslets. SIGGRAPH Posters Jonghyun Ha, Masaru Kojima, Keita Takahashi, Takeshi Naemura
2005	—	`conf`	Spatial domain analysis on the focus measurement for light field rendering. ICIP (3) Keita Takahashi, Takeshi Naemura
2005	A	`conf`	Unstructured light field rendering using on-the-fly focus measurement. ICME Keita Takahashi, Takeshi Naemura
2004	B	`conf`	A focus measure for light field rendering. ICIP Keita Takahashi, Akira Kubota, Takeshi Naemura
2004	—	`conf`	All in-focus light field viewer. SIGGRAPH Posters Keita Takahashi, Takeshi Naemura
2004	—	`conf`	All-focused light field rendering. Rendering Techniques Akira Kubota, Keita Takahashi, Kiyoharu Aizawa, Tsuhan Chen
2004	A*	`conf`	Focus Measurement on Programmable Graphics Hardware for All in-Focus Rendering from Light Fields. VR Kaoru Sugita, Keita Takahashi, Takeshi Naemura, Hiroshi Harashima
2003	—	`conf`	All in-Focus View Synthesis from Under-Sampled Light Fields. ICAT Keita Takahashi, Akira Kubota, Takeshi Naemura
2003	—	`conf`	Depth of field in light field rendering. ICIP (1) Keita Takahashi, Takeshi Naemura, Hiroshi Harashima