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A study on a new representation and acquisition principle of a free-viewpoint video

Research Project

Project/Area Number 24560450
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Communication/Network engineering
Research InstitutionNagoya University

Principal Investigator

FUJII Toshiaki  名古屋大学, 工学(系)研究科(研究院), 教授 (30273262)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords自由視点映像 / 奥行きマップ / 光線空間 / 疎表現 / エピポーラ平面画像 / 圧縮センシング
Outline of Final Research Achievements

"View plus Depth" data has been considered as a promising data format for future 3-D visual communication. However, this format is not feasible for real situation where no accurate depth information is available. We addressed the problem by proposing a new representation format that requires no depth information. We focused on a ray space representation, which can generate free-viewpoint images without depth data. First, we proposed to adopt compressed sensing to sparsely sense and reconstruct a ray space. We focused on an Epipolar Plane Image (EPI) block and approximated it by using common orthonormal basis in compressed sensing procedure. Second, we proposed a statistically weighted model in the reconstruction of compressively sampled ray space. For both cases, in the experiment, we confirmed hat the proposed method can achieve much better reconstruction quality for both 2D image patch and 3D image cube cases.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (26 results)

All 2015 2014 2013 2012

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (24 results) (of which Invited: 1 results)

  • [Journal Article] Reconstruction of Compressively Sampled Ray Space by Statistically Weighted Model2014

    • Author(s)
      Qiang Yao, Keita Takahashi, Toshiaki Fujii
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: Vol. E97-A, No. 10 Pages: 2064-2073

    • NAID

      130004696725

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] [Paper] Compressed Sensing of Ray Space for Free Viewpoint Image (FVI) Generation2014

    • Author(s)
      Qiang Yao, Keita Takahashi, Toshiaki Fujii
    • Journal Title

      ITE Transactions on Media Technology and Applications

      Volume: 2 Issue: 1 Pages: 23-32

    • DOI

      10.3169/mta.2.23

    • NAID

      130004974701

    • ISSN
      2186-7364
    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Joint Directional-Positional Multiplexing for Light Field Acquisition by Kronecker Compressed Sensing2015

    • Author(s)
      Qiang Yao, Keita Takahashi, Mehrdad Panahpour Tehrani, Toshiaki Fujii
    • Organizer
      40th IEEE International Conference on Acoustics, Speech and Signal Processing(ICASSP) 2015
    • Place of Presentation
      Brisbane (Australia)
    • Year and Date
      2015-04-19 – 2015-04-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 符号化開口により圧縮センシングされた光線空間の重み付きL1正則化による復元手法の検討2014

    • Author(s)
      宮城 雄介, 高橋 桂太, 要 強, パナヒプル テヘラニ メヒルダド,藤井 俊彰
    • Organizer
      画像符号化シンポジウム 2014
    • Place of Presentation
      ラフォーレ修善寺(静岡県伊豆市)
    • Year and Date
      2014-11-12 – 2014-11-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Reconstruction of compressively sampled ray space by using DCT basis and statistically-weighted L1 norm optimization2014

    • Author(s)
      Qiang Yao
    • Organizer
      IS&T/ Electronic Imaging 2014
    • Place of Presentation
      Hilton San Francisco, California, USA
    • Related Report
      2013 Research-status Report
  • [Presentation] Highly Efficient Representation of Ray Space for FTV System2013

    • Author(s)
      Qiang Yao
    • Organizer
      Three Dimensional Systems and Applications 2013
    • Place of Presentation
      グランフロント大阪
    • Related Report
      2013 Research-status Report
  • [Presentation] Sparse Acquisition of Ray Space by Sensing EPI2013

    • Author(s)
      Qiang Yao
    • Organizer
      3次元画像コンファレンス2013
    • Place of Presentation
      早稲田大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Three Dimensional Compressed Sensing of Ray Space2013

    • Author(s)
      Qiang Yao
    • Organizer
      電気関係学会東海支部連合大会
    • Place of Presentation
      静岡大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Overcomplete Compressed Sensing of Ray Space for Generating Free Viewpoint Images2013

    • Author(s)
      Qiang Yao
    • Organizer
      Asian-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC) 2013
    • Place of Presentation
      85 Sky Tower Hotel, Kaohsiung, Taiwan
    • Related Report
      2013 Research-status Report
  • [Presentation] Sparsity Analysis of EPI by Dictionary Learning Method2013

    • Author(s)
      YAO Qiang
    • Organizer
      2013 International Workshop on Advanced Image Technology
    • Place of Presentation
      Nagoya University
    • Related Report
      2012 Research-status Report
  • [Presentation] Virtual Image Generation by Using Super-Resolution2013

    • Author(s)
      Meichen Liu
    • Organizer
      2013 International Workshop on Advanced Image Technology
    • Place of Presentation
      Nagoya University
    • Related Report
      2012 Research-status Report
  • [Presentation] Adaptive Hole Filling for 3D Warping-Based Free View Synthesis2013

    • Author(s)
      Tatsuro Mori
    • Organizer
      2013 International Workshop on Advanced Image Technology
    • Place of Presentation
      Nagoya University
    • Related Report
      2012 Research-status Report
  • [Presentation] Adaptive hole filling for 3D warping-based virtual view synthesis2013

    • Author(s)
      Tatsuro Mori
    • Organizer
      SPIE 2013 Electronic Imaging Science and Technology
    • Place of Presentation
      Hyatt Regency San Francisco Airport Hotel, California, U.S.A.
    • Related Report
      2012 Research-status Report
  • [Presentation] An Incoherence Dictionary Learning Model for Sparse Representation of EPI2013

    • Author(s)
      YAO Qiang
    • Organizer
      2013年電子情報通信学会総合大会
    • Place of Presentation
      岐阜大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Ray-space acquisition system for 3DTV2012

    • Author(s)
      Toshiaki Fujii
    • Organizer
      SPIE 2012 Defense Security and Sensing
    • Place of Presentation
      Baltimore Convention Center, Maryland, U.S.A.
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 3Dワーピングを用いた自由視点画像生成により生じるホールに対する適応的処理2012

    • Author(s)
      森達郎
    • Organizer
      3次元画像コンファレンス2012
    • Place of Presentation
      早稲田大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 円形カメラアレイにおける光線空間の圧縮センシング2012

    • Author(s)
      臼井俊亮
    • Organizer
      3次元画像コンファレンス2012
    • Place of Presentation
      早稲田大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Sparse Decomposition of EPI by Greedy Pursuit Method2012

    • Author(s)
      YAO Qiang
    • Organizer
      電気学会東海支部 平成24 年度 第1回若手セミナー
    • Place of Presentation
      名古屋大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Sparse Decomposition of EPI by Using Greedy Pursuit Algorithm2012

    • Author(s)
      YAO Qiang
    • Organizer
      第11回情報科学技術フォーラム
    • Place of Presentation
      法政大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 超解像度を利用したFTV画像生成方式2012

    • Author(s)
      劉 美辰
    • Organizer
      第11回情報科学技術フォーラム
    • Place of Presentation
      法政大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 超解像による仮想視点画像の生成2012

    • Author(s)
      劉 美辰
    • Organizer
      平成24年度電気関係学会東海支部連合大会
    • Place of Presentation
      豊橋技術科学大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Sparse Representation of Epipolar Plane Image by Overcomplete Dictionary2012

    • Author(s)
      YAO Qiang
    • Organizer
      平成24年度電気関係学会東海支部連合大会
    • Place of Presentation
      豊橋技術科学大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 3Dワーピングを用いた仮想視点画像生成における適応的ホール処理2012

    • Author(s)
      森 達郎
    • Organizer
      平成24年度電気関係学会東海支部連合大会
    • Place of Presentation
      豊橋技術科学大学
    • Related Report
      2012 Research-status Report
  • [Presentation] The Decomposition of Epipolar Plane Image by Using Dictionary Learning Method2012

    • Author(s)
      YAO Qiang
    • Organizer
      第27回画像符号化シンポジウム
    • Place of Presentation
      ニューウェルシティ湯河原
    • Related Report
      2012 Research-status Report
  • [Presentation] 超解像によるFTV 画像の補間2012

    • Author(s)
      劉 美辰
    • Organizer
      第27回画像符号化シンポジウム
    • Place of Presentation
      ニューウェルシティ湯河原
    • Related Report
      2012 Research-status Report
  • [Presentation] 3D ワーピングを用いた生成自由視点画像に対する適応的ホールフィリング法2012

    • Author(s)
      森 達郎
    • Organizer
      第27回画像符号化シンポジウム
    • Place of Presentation
      ニューウェルシティ湯河原
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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