Profile

Personal Information

Name: Takuya Fujihashi (藤橋 卓也)

Membership: Member of IEEE, IEICE, and IPSJ.

Society: IEEE ComSoc and IEEE SPS.

Email: fujihashi [at] cs.ehime-u.ac.jp

Address: 3, Bunkyo-cho, Matsuyama, Ehime, 790-8577 Japan.

Biography

I was born in Gifu, Japan in 1990. I received the B.E. degree in 2012 and the M.S. degree in 2013 from Shizuoka University, Japan. In 2016, I also received Ph.D. degree from the Graduate School of Information Science and Technology, Osaka University, Japan. I am currently an assistant professor at the Graduate School of Science and Engineering, Ehime University since Jan. 2017. I was research fellow (PD) of Japan Society for the Promotion of Science in 2016. From 2014 to 2016, I was research fellow (DC1) of Japan Society for the Promotion of Science. From 2014 to 2015, I was an intern at Mitsubishi Electric Research Labs. (MERL) working with the Electronics and Communications group. I selected one of the Best Paper candidates in IEEE ICME (International Conference on Multimedia and Expo) 2012. My research interests are in the area of video compression and communications, with a focus on multi-view video coding and streaming over high and low quality networks.

Research Topics
Immersive Video Delivery

How to reduce traffic of multi-view video, free viewpoint video, and 360-degree video contents

T. Fujihashi, Z. Pan, T. Watanabe, IEEE TMM, 2014
T. Fujihashi, S. Saruwatari, T. Watanabe, IEEE TMM, 2018 (in press)
Graceful Video Delivery

How to realize graceful video quality in unstable wireless channel by using near-analog modulation

T. Fujihashi, T. Koike-Akino, T. Watanabe, P. Orlik, IEEE TMM, 2018 (in press)
Screen-Camera Communication

How to improve achievable throughput based on experimental measurements


T. Fujihashi, T. Koike-Akino, P. Orlik, T. Watanabe, IEEE GLOBECOM, 2016.

Publication

Journal (International/Domestic)
  1. 複数の無線伝送路を活用したハイブリッド映像伝送に関する研究
    Author: 藤橋 卓也,大友 伊織,遠藤 慶一,廣田 悠介,小林 真也,渡辺 尚
    Published in: 情報処理学会論文誌 (in print).
  2. A Traffic Reduction Method for Crowdsourced Multi-view Video Uploading
    Author: Than Than Nu, Takuya Fujihashi, Takashi Watanabe
    Published in: IEEE Access (in print).
  3. Multi-view Video Transmission over Underwater Acoustic Path
    Author: Takuya Fujihashi, Shunsuke Saruwatari, Takashi Watanabe
    Published in: IEEE Transactions on Multimedia (in print).
  4. Segment Scheduling for Progressive Download-based Multi-view Video Delivery under Successive View Switching
    Author: Takahito Kito, Iori Otomo, Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Published in: IEICE Transactions on Communications, Vol. E101-B, No.04, Apr. 2018
  5. High-Quality Soft Video Delivery with GMRF-Based Overhead Reduction
    Author: Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe, Philip V. Orlik
    Published in: IEEE Transactions on Multimedia (in print)
  6. High Quality Multi-view Video Streaming over Multiple Transmission Paths
    Author: Iori Otomo, Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Published in: IEICE Transactions on Communications, Vol. E100-B, No.08, Aug. 2017.
  7. Frame Popularity-aware Loss-resilient Interactive Multi-view Video Streaming
    Author: Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Published in: IEICE Transactions on Communications, Vol. E100-B, No.04, Apr. 2017.
  8. 映像の類似性を利用したワイヤレスマルチビュービデオストリーミング
    Author: 小寺 志保, 藤橋 卓也, 猿渡 俊介, 渡辺 尚
    Published in: 情報処理学会論文誌:デジタルコンテンツ(DCON), Vol.5, No.02, pp.36-54, Aug. 2016.
  9. Wireless Multi-view Video Streaming with Subcarrier Allocation
    Author: Takuya Fujihashi, Shiho Kodera, Shunsuke Saruwatari, Takashi Watanabe
    Published in: IEICE Transactions on Communications, Vol.E99-B, No.02, pp.542-554, Feb. 2016.
  10. カメラ間通信を用いた無線マルチビューストリーミング
    Author: 小寺 志保, 藤橋 卓也, 猿渡 俊介, 渡辺 尚
    Published in: 情報処理学会論文誌, vol. 55, no. 10, pp.1-12, Oct. 2014.
  11. UMSM: A Traffic Reduction Method on Multi-view Video Streaming for Multiple Users
    Author: Takuya Fujihashi, Ziyuan Pan, Takashi Watanabe
    Published in: IEEE Transactions on Multimedia, Vol.16, No.1, pp.228-241, Jan. 2014
  12. Traffic Reduction on Multi-view Video Live Streaming for Multiple Users
    Author: Takuya Fujihashi, Ziyuan Pan, Takashi Watanabe
    Published in: IEICE Transactions on Communications, Vol. E96-B, No. 07, pp. 2034-2045, Jul. 2013.

International Conference (peer-reviewed)
  1. Power-efficient Video Uploading for Crowdsourced Multi-view Video Streaming
    Author: Than Than Nu, Takuya Fujihashi, Takashi Watanabe
    Proceedings of IEEE Global Communications Conference (IEEE GLOBECOM), Dec. 2018.
  2. Users' Demand-based Segment Scheduling for Progressive Multi-view Video Transmission
    Author: Takahito Kito, Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Proceedings of IEEE Global Communications Conference (IEEE GLOBECOM), Dec. 2018.
  3. Graceful Quality Improvement in Wireless 360-Degree Video Delivery
    Author: Takuya Fujihashi, Makoto Kobayashi, Keiichi Endo, Shunsuke Saruwatari, Shinya Kobayashi, Takashi Watanabe
    Proceedings of IEEE Global Communications Conference (IEEE GLOBECOM), Dec. 2018.
  4. Nonlinear Equalization with Deep Learning for Multi-Purpose Visual MIMO Communications
    Author: Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe, Philip V. Orlik
    Proceedings of IEEE International Conference on Communications, May 2018.
  5. Cooperative Wi-Fi and Visible Light Communication for Indoor Video Delivery
    Author: Iori Otomo, Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Proceedings of IEEE International Conference on Communications, May 2018.
  6. Utilizing Tablets in an Ideathon for University Undergraduates
    Author: Keiichi Endo, Takuya Fujihashi, Shinya Kobayashi
    Proceedings of 10th Asian Conference on Intelligent Information and Database Systems, Mar. 2018 (accepted).
  7. Development of Seawater Temperature Announcement System for Quick and Accurate Red Tide Estimation
    Author: Yu Agusa, Takuya Fujihashi, Keiichi Endo, Hisayasu Kuroda, Shinya Kobayashi
    Proceedings of 10th Asian Conference on Intelligent Information and Database Systems, Mar. 2018 (accepted).
  8. Improvement of Community Bus Operation Management System
    Author: Kento Ando, Yu Fujihara, Takuya Fujihashi, Keiichi Endo, Hisayasu Kuroda and Shinya Kobayashi
    Proceedings of 10th Asian Conference on Intelligent Information and Database Systems, Mar. 2018 (accepted).
  9. Content-aware Efficient Video Uploading for Crowdsourced Multi-view Video Streaming
    Author: Than Than Nu, Takuya Fujihashi, Takashi Watanabe
    Proceedings of IEEE Workshop on Computing, Networking and Communications (CNC), Mar. 2018 (accepted).
  10. Bandwidth-based Adaptive Coding Control Method for Real-time Multi-view Video Streaming
    Author: Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Proceedings of IEEE GLOBECOM, Dec. 2017.
  11. Soft Video Delivery for Free Viewpoint Video
    Author: Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe, Philip V. Orlik
    Proceedings of IEEE International Conference on Communications, pp. 1-7, May 2017.
  12. Experimental Throughput Analysis in Screen-Camera Visual MIMO Communications
    Author: Takuya Fujihashi, Toshiaki Koike-Akino, Philip V. Orlik,Takashi Watanabe
    Proceedings of IEEE GLOBECOM, pp. 1-6, Dec. 2016.
  13. A Novel Segment Scheduling Method for Multi-view Video Using Progressive Download
    Author: Takahito Kito, Iori Otomo, Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Proceedings of IEEE GLOBECOM, pp.1-6, Dec. 2016.
  14. High Quality Multi-path Multi-view Video Transmission considering Path Priority Control
    Author: Ishida Tetta, Takahito Kito, Iori Otomo, Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Proceedings of The 7th International Workshop on Streaming Media Delivery and Management Systems, Nov. 2016.
  15. Quality Improvement and Overhead Reduction for Soft Video Delivery
    Author: Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe, Philip V. Orlik
    Proceedings of IEEE International Conference on Communications, May 2016.
  16. Loss Resilient Multi-view Video Streaming over Multiple Transmission Paths
    Author: Iori Otomo, Takuya Fujihashi, Yusuke Hirota, Takashi Watanabe
    Proceedings of IEEE International Conference on Communications, May 2016.
  17. Compressive Sensing for Loss-Resilient Hybrid Wireless Video Transmission
    Author: Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe, Philip V. Orlik
    Proceedings of IEEE GLOBECOM, pp. 1-7, Dec. 2015.
  18. Multi-view Video Streaming with Mobile Cameras
    Author: Shiho Kodera, Takuya Fujihashi, Shunsuke Saruwatari, Takashi Watanabe
    Proceedings of IEEE GLOBECOM, pp. 1412-1417, Dec. 2014.
  19. Wireless Multiview Video Streaming with Subcarrier Allocation by Frame Significance
    Author: Takuya Fujihashi, Shiho Kodera, Shunsuke Saruwatari, Takashi Watanabe
    Proceedings of IEEE Vehicular Technology Conference, pp. 1-5, Sep. 2014.
  20. Multi-view Video Live Streaming for Multiple Users under Hybrid Multicast-Unicast Scheme
    Author: Takuya Fujihashi, Ziyuan Pan, Shunsuke Saruwatari, Takashi Watanabe
    Proceedings of the 7th International Conference on Mobile Computing and Ubiquitous Networking (ICMU'14), pp. 194-199, Jan. 2014.
  21. A Preliminary Study on Multi-view Video Streaming over Underwater Acoustic Networks
    Author: Takuya Fujihashi, Hai-Heng Ng, Ziyuan Pan, Shunsuke Saruwatari, Hwee-Pink Tan, Takashi Watanabe
    Proceedings of the 2013 International Symposium on Underwater Technology, pp. 1-5, Mar. 2013.
  22. Traffic Reduction for Multiple Users in Multi-view Video Streaming
    Author: Takuya Fujihashi, Ziyuan Pan, Takashi Watanabe
    Proceedings of IEEE International Conference on Multimedia and Expo, pp. 182-187, Jul. 2012 (Best paper candidate 8 out of 609 submissions).
  23. A Discussion on Multi-view Video Streaming in Wireless Networks
    Author: Takuya Fujihashi, Ziyuan Pan and Takashi Watanabe
    Proceedings of The Sixth International Conference on Mobile Computing and Ubiquitous Networking, pp.114-121, May 2012.

Invited Talk
  1. 無線伝送路特性を考慮した高品質映像伝送技術
    Author: Takuya Fujihashi, Takashi Watanabe
    情報処理学会 モバイルコンピューティングとパーベイシブシステム研究会, 2016年8月.
  2. 多視点映像を用いたネットワーク配信技術 ー臨場感あふれるスポーツ配信を目指してー
    Author: Takuya Fujihashi, Shinya Kobayashi, Takashi Watanabe
    電子情報通信学会ソサイエティ大会チュートリアルセッション ICT✕スポーツ:アプリケーションと技術, 2018年9月.

Domestic Conference (Preparing...)

Patents
  1. System and Method for Hybrid Wireless Video Transmission
    Author: Toshiaki Koike-Akino, Takuya Fujihashi, Philip V. Orlik
    Patent Information: US 14/729,763, 出願, 2015.

Awards
  1. Excellent Paper Award (優秀論文賞)
    Title: 複数の無線伝送路を活用した高品質映像伝送に関する一研究
    Award from: 情報処理学会 DICOMO2017, 2017年6月
  2. Excellent Presentation Award (優秀プレゼンテーション賞)
    Title: 複数の無線伝送路を活用した高品質映像伝送に関する一研究
    Award from: 情報処理学会 DICOMO2017, 2017年6月
  3. Kasami Award (嵩賞):大阪大学大学院情報科学研究科で博士学位を取得した優秀な若手研究者を表彰,2016年受賞者は1名
    Title: マルチビュービデオのネットワーク伝達に関する研究
    Award from: 大阪大学大学院情報科学研究科, 2017年3月
  4. Excellent Paper Award (優秀論文賞)
    Title: プログレッシブダウンロード環境におけるマルチビュービデオ配信のためのセグメントスケジューリング手法
    Award from: 情報処理学会 DICOMO2016, 2016年7月
  5. Quick Report on Doctoral Theses Recommended by IPSJ SIGs (2015年度研究会推薦博士論文速報)
    Title: A Study on Encoding and Transmission Designs for Multi-view Video Streaming
    Award from: 情報処理学会 モバイルコンピューティングとパーベイシブシステム研究会, 2016年4月
  6. Excellent Paper Award (優秀論文賞)
    Title: 複数カメラからの映像の伝送順序が映像品質に与える影響について
    Award from: 情報処理学会 DICOMO2014, 2014年7月
  7. Telecom System Technology Award (テレコムシステム技術賞)
    Title: UMSM: A Traffic Reduction Method on Multi-view Video Streaming for Multiple Users
    Award from: 電気通信普及財団賞, 2014年3月
  8. Excellent Paper Award (優秀論文賞)
    Title: カメラ間通信を用いた無線マルチビュービデオストリーミングの検討
    Award from: 情報処理学会 MBL研究会, 2013年11月
  9. Excellent Presentation Award (優秀プレゼンテーション賞)
    Title: マルチビュービデオのクロスレイヤ型伝送方式に関する検討
    Award from: 情報処理学会 DICOMO2013, 2013年7月
  10. International Conference Presentation Student Award
    Title: Traffic Reduction for Multiple Users in Multi-view Video Streaming
    Award from: IEEE 名古屋支部, 2013年3月
  11. One of 8 best paper finalists out of 609 submitted papers
    Title: Traffic Reduction for Multiple Users in Multi-view Video Streaming
    Award from IEEE ICME 2012,2012年7月
  12. 2012年度前期国際会議論文発表者助成
    Award from: 公益財団法人NEC C&C財団,2012年5月
  13. Excellent Student Award (浜松工業会学生優秀賞)
    Award from: 静岡大学情報学部, 2012年3月.(静岡大学情報学部卒業生約200名中成績優秀者4名に授与)
  14. Excellent Presentation Award (優秀卒業研究発表賞)
    Title: A study on User Dependent Multi-view Video Streaming for Multiple Users
    Award from: H24年度 電子情報通信学会東海支部 卒業研究発表会, 2012年3月

Experience

Education
  1. Graduate School of Information Science and Technology, Osaka University, Japan, Mar. 2016
    Ph.D: Information Science and Technology
    Adviser: Prof. Takashi Watanabe
  2. Graduate School of Informatics, Shizuoka University, Japan, Sep. 2013

    M.S.: Informatics

    Adviser: Prof. Takashi Watanabe

  3. Faculty of Informatics, Shizuoka University, Japan, Mar. 2012

    B.E.: Informatics

    Adviser: Prof. Takashi Watanabe

  4. Ogaki Commercial High School, Japan, Mar. 2008

Professional Experience
  1. Jan. 2017-Present: Assistant Professor at Graduate School of Science and Engineering, Ehime University, Japan
  2. Jan. 2017-Present: Adjunct Researcher at Graduate School of Information Science and Technology, Osaka University, Japan
  3. Jun. 2018-Present: Technical Committee, Technical Committee on Network Systems, The Institute of Electronics, Information and Communication Engineers
  4. Apr. 2016-Dec. 2016: Japan Society for the Promotion of Science (JSPS) Research Fellow (PD)
  5. Dec. 2014-Dec. 2015: Research Internship in Mitsubishi Electric Research Laboratories, USA
    Studied analog/hybrid video streaming over wireless channels with Dr. Philip V. Orlik and Dr. Toshiaki Koike-Akino
  6. Apr. 2014-Mar. 2016: Japan Society for the Promotion of Science (JSPS) Research Fellow (DC1)
  7. Aug. 2012-Nov. 2012: Research Internship in Institute of Infocomm Research, Singapore
    Studied multi-view video streaming over underwater acoustic networks with Professor Tan Hwee-Pink and Dr. Ng Hai-Heng
  8. Research Discussion
    Jan. 2014: Nanyang Technological University with Professor Cai Jianfei
    Dec. 2012: NHK Science & Technology Research Laboratories
    Dec. 2012: University of Missouri Columbia with Professor Zeng Wenjun
  9. Research Assistant
    Oct. 2013-Jan. 2014: Osaka University (Wireless communication and distributed system)
    Apr. 2013-Sep. 2013: Shizuoka University (Wireless communication and Internet technology)

Work

Class
  1. 新入生セミナーA(1年前期・平成29年度・愛媛大学)
  2. 新入生セミナーB(1年前期・平成29年度~・愛媛大学)
  3. 情報工学実験II(3年前期・平成29年度~・愛媛大学)
  4. 情報システム開発演習(3年前期・平成29年度~・愛媛大学)
  5. システムデザイン(3年後期・平成29年度~・愛媛大学)
  6. システム解析特論(M1第1クォーター・平成29年度~・愛媛大学大学院)
Conference Organization
  1. Special Session Organizer
    Conference: Special Session on Design Thinking Based R&D, Development Technique, and Project Based Learning at the 11th Asian Conference on Intelligent Information and Database Systems (ACIIDS 2019)
  2. Program Committee
    Conference: Special Session on Design Thinking Based R&D, Development Technique, and Project Based Learning at the 10th Asian Conference on Intelligent Information and Database Systems (ACIIDS 2018)
  3. Technical Program Committee
    Conference: 2018 IEEE International Workshop on Smart Multimedia (SmartMM2018) at the 4th IEEE International Conference on Smart Computing (SmartComp2018)
Research Grants
  1. Apr. 2017-Mar. 2019: 無線超臨場感システム実現を目指す高品質無線ストリーミングに関する基礎研究
    Role: Principal Investigator
    Grants from: Grant-in-Aid for Young Scientists (B)
  2. Apr. 2014-Mar. 2017: マルチビュービデオのネットワーク伝送に関する研究
    Role: Principal Investigator
    Grants from: Grant-in-Aid for JSPS Fellows
  3. Apr. 2013-Mar. 2015: A Study on Efficient Multi-view Video Streaming
    Role: Collaborator
    Grants from: The Telecommunications Advancement Foundation
  4. Apr. 2013-Mar. 2014: Multi-view Video Streaming for Intelligent Transport Systems
    Role: Collaborator
    Grants from: Suzuki Foundation