Kosuke TAKAHASHI, Ph.D.

Affiliation
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Media intelligence laboratories
Research Interests
Computer Vision, Conputer Graphics, Sports Performance Enhancement
  • Camera calibration using mirror reflection
  • Sports performance enhancement with a virtual reality system

  • Contact
    E-mail:t.kousuke.1210 at gmail.com
    Twitter: @q_tarou
    Facebook: takahashi.kousuke
  • Our paper "Image quality assessment for inpainted images via learning to rank" was accepted to Multimedia Tools and Applications,2018.
  • Our paper "Human Pose as Calibration Pattern; 3D Human Pose Estimation with Multiple Unsynchronized and Uncalibrated Cameras" was accepted to IEEE CVPR Workshop (CVSports) 2018.
  • Our paper "Estimation of Center of Mass for Sports Scene Using Weighted Visual hull" was accepted to IEEE CVPR Workshop (CVSports) 2018 に採択されました.
  • I received my Ph.D. in informatics at Kyoto University. My doctoral dissertation: ``Camera Calibration Based on Mirror Reflections''.
  • Doctor's degree in Informatics, Mar. 2018

    • Kyoto University, Japan
    • Title of thesis: "Camera Calibration Based on Mirror Reflections"
    • Supervisor:Dr. Shohei Nobuhara
  • Master's degree in Informatics, Mar. 2012

    • Kyoto University, Japan
    • Title of thesis: "Mirror-based Camera Pose Estimation Using an Orthogonality Constraint"
    • Supervisor:Prof. Takashi Matsuyama
  • Bachelor's degree in Informatics and Mathematical Science, Mar. 2010

    • Kyoto University, Japan
    • Title of thesis: "Display Visual and Auditory Information to Support Manipulation of Virtual Object in Virtual Studio"
    • Supervisor:Prof. Michihiko Minoh
    Journals
    1. Isogawa Mariko, Dan Mikami, Kosuke Takahashi, Hideaki Kimata,
      "Image quality assessment for inpainted images via learning to rank",
      Multimedia Tools and Applications, 2018
    2. Shogo Miyata, Hideo Saito, Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Akira Kojima,
      "Extrinsic Camera Calibration Without Visible Corresponding Points Using Omnidirectional Cameras",
      IEEE Transactions on Circuits and Systems for Video Technology, vol.PP, no.99, pp.1-1, 2017
    3. Isogawa Mariko, Dan Mikami, Kosuke Takahashi, Akira Kojima,
      "Image and video completion via feature reduction and compensation",
      Multimedia Tools and Applications ,
    4. Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Akira Kojima,
      "Extrinsic Camera Calibration with Minimal Configuration using Cornea Model and Equidistance Constraint",
      IPSJ Transactions on Computer Vision and Applications, Vol.8, 2016, pp.20-28
    5. Kosuke Takahashi, Shohei Nobuhara, Takashi Matsuyama,
      "Mirror-based Camera Pose Estimation Using an Orthogonality Constraint",
      IPSJ Transactions on Computer Vision and Applications, Vol.8, 2016, pp.11-19
    6. Daisuke Ochi, Hideaki Kimata, Yoshinori Kusachi, Kosuke Takahashi, Akira Kojima
      "Stabilization Technique for Region-of-Interest Trajectories Made from Video Watching Manipulations",
      IEICE Transactions on Information and Systems, Vol.E97-D, 2014, pp.266-274-


    Conference Papers
    1. Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Hideaki Kimata,
      "Human Pose as Calibration Pattern; 3D Human Pose Estimation with Multiple Unsynchronized and Uncalibrated Cameras",
      IEEE, CVSports (CVPRW), June, 2018
    2. Tomoya Kaichi, Hideo Saito, Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Hideaki Kimata,
      "Estimation of Center of Mass for Sports Scene Using Weighted Visual hull",
      IEEE, CVSports (CVPRW), June, 2018
    3. Mariko Isogawa, Dan Mikami, Takehiro Fukuda, Naoki Saijo, Kosuke Takahashi, Hideaki Kimata, Makio Kashino
      "What Can VR Systems Tell Sports Players? Reaction-based Analysis of Baseball Batters in Virtual and Real Worlds",
      IEEE, VR, Mar, 2018
    4. Mariko Isogawa, Dan Mikami, Kosuke Takahashi, Hideaki Kimata,
      "Which is the better inpainted image? Learning without subjective annotation",
      IEEE, BMVC, Sep, 2017
    5. Kosuke Takahashi, Akihiro Miyata, Shohei Nobuhara, Takashi Matsuyama,
      "A Linear Extrinsic Calibration of Kaleidoscopic Imaging System from Single 3D Point",
      IEEE, CVPR, June, 2017
    6. Shogo Miyata, Hideo Saito, Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Hideaki Kimata,
      "Ball 3D Trajectory Reconstruction without Preliminary Temporal and Geometrical Camera Calibration",
      IEEE, CVSports (CVPRW), June, 2017
    7. Daisuke Ochi, Akio Kameda, Kosuke Takahashi, Motohiro Makiguchi, Kouta Takeuchi,
      "VR technologies for rich sports experience",
      ACM, SIGGRAPH (Emerging Technologies), Jul, 2016
    8. Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Akira Kojima,
      "Cornea-Reflection-Based Extrinsic Camera Calibration Without a Direct View",
      INSTICC, VISAPP, Feb, 2016
    9. Dan Mikami, Mariko Isogawa, Kosuke Takahashi, Hideaki Takada, Akira Kojima,
      "Immersive previous experience in VR for sports performance enhancement",
      INSTICC, icSPORTS, Nov, 2015
    10. Mariko Isogawa, Dan Mikami, Kosuke Takahashi, Akira Kojima,
      "Virtual Omnidirectional Video Synthesis with Multiple Cameras for Sports Training",
      INSTICC, icSPORTS, Nov, 2015
    11. Dan Mikami, Mariko Isogawa, Kosuke Takahashi, Akira Kojima,
      "Automatic Visual Feedback from Multiple Views for Motor Learning",
      IEEE, ISMAR, Oct, 2015
    12. Mariko Isogawa, Dan Mikami, Kosuke Takahashi, Akira Kojima,
      "Content Completion in Lower Dimensional Feature Space through Feature Reduction and Compensation",
      IEEE, ISMAR, Oct, 2015
    13. Mariko Isogawa, Dan Mikami, Kosuke Takahashi, Akira Kojima,
      "Toward Enhancing Robustness of DR System: Ranking Model for Background Inpainting",
      IEEE, ISMAR, Oct, 2015
    14. Kosuke Takahashi, Daisuke Ochi, Yutaka Kunita, Akira Kojima,
      "Pose Estimation of Light Field Camera Based on Termporal Epipolar Constraint",
      IEEE, ICCP, May, 2014
    15. Kosuke Takahashi, Shohei Nobuhara, Takashi Matsuyama,
      "A New Mirror-based Extrinsic Camera Calibration Using an Orthogonality Constraint",
      IEEE, CVPR, June, 2012, Best Open Source Code Award Second Prize


    Conference Papers ( Domestic )
    1. Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Hideaki Kimata,
      "Extrinsic Camera Calibration from Human Joints" (In Japanese),
      Information Processing Society of Japan (IPSJ), CVIM, Nov, 2017
    2. Tomoya Kaichi,Hideo Saito,Kosuke Takahashi, Dan Mikami, Mariko Isogawa,Hideaki Kimata,
      "A Step Towards Estimating the Center of Mass of a Human Using Multi-view Images ",
      IEICE, MVE, Oct, 2017
    3. Kosuke Takahashi, Shohei Nobuhara, Takashi Matsuyama,
      "A Linear Extrinsic Calibration of Kaleidoscopic Imaging System from Single 3D Point",
      Information Processing Society of Japan, CVIM, Jan, 2017, CVIM Award
    4. Shogo Miyata, Hideo Saito (Keio Univ), Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Hideaki Kimata,
      "Ball-Tracking Based Temporal and Geometrical Camera Calibration and Reconstruction the 3D Trajectory for Baseball" (In Japanese),
      Information Processing Society of Japan (IPSJ), CVIM, Jan, 2017
    5. Kosuke Takahashi, Dan Mikami, Mariko Isogawa,Akira Kojima,
      "Extrinsic Camera Calibration of Display-Camera System using Cornea Reflection" (In Japanese),
      The Institute of Electronics, Information and Communication Engineers (IEICE), MVE, Oct, 2015
    6. Mariko Isogawa,Dan Mikami, Kosuke Takahashi, Akira Kojima,
      "Ranking Model for Image Inpainting" (In Japanese),
      The Institute of Electronics, Information and Communication Engineers (IEICE), MVE, Oct, 2015
    7. Kosuke Takahashi, Dan Mikami, Mariko Isogawa,Akira Kojima,
      "A Study on Virtual Omnidirectional Video Synthesis from Multiple Cameras" (In Japanese),
      The Institute of Electronics, Information and Communication Engineers (IEICE), MVE, June, 2015
    8. Kosuke Takahashi, Dan Mikami, Akira Kojima,
      "Extrinsic Calibration of Display-Camera System for AR/VR Applications"(In Japanese),
      The Institute of Electronics, Information and Communication Engineers (IEICE), MVE, Jan, 2015, MVE Best Paper Award
    9. Daisuke Ochi, Dan Mikami, Kosuke Takahashi, Akira Kojima,
      "Look out of the TV Screen ~A Video Delivery to the Second Screen Asuming Spatiality of the Video~",
      The Institute of Electronics, Information and Communication Engineers (IEICE), MVE, Sep, 2013
    10. Kosuke Takahashi, Shohei Nobuhara, Takashi Matsuyama,
      "A New Linear Extrinsic Camera Calibration using Mirrored Images",
      Information Processing Society of Japan (IPSJ), CVIM, Jan, 2012
    11. Kosuke Takahashi, Tomohiro Yabuuchi, Takuya Funatomi, Masaaki Iiyama, Masayuki Mukunoki, Michihiko Minoh,
      "Display Visual and Auditory Information to Support Manipulation of Virtual Object in Virtual Studio",
      The Institute of Electronics, Information and Communication Engineers (IEICE), PRMU, Mar, 2010
    1. IPSJ "CVIM Award", "Camera Calibration Based on Mirror Reflections", 2018
    2. IPSJ "CVIM Award", "A Linear Extrinsic Calibration of Kaleidoscopic Imaging System from Single 3D Point", 2017
    3. IEICE "HC Award", "Extrinsic Calibration of Display-Camera System for AR/VR Applications", 2015
    4. IEICE "MVE Best Paper Award", "Extrinsic Calibration of Display-Camera System for AR/VR Applications", 2015
    5. CVPR 2012 "Best Open Source Code" Award Second Prize, "A New Mirror-based Extrinsic Camera Calibration Using an Orthogonality Constraint", 2012
    6. received eight NTT company awards including one President's Award.

    Media

  • K in VR (1:24~)