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A study on sparse representation of high-resolution video based on directional tensor dictionary

Research Project

Project/Area Number 17K14683
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Communication/Network engineering
Research InstitutionThe University of Kitakyushu

Principal Investigator

Kyochi Seisuke  北九州市立大学, 国際環境工学部, 准教授 (70634616)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsテンソル辞書 / スパース表現 / 高解像度映像 / 信号圧縮 / 信号復元 / 凸最適化 / 辞書学習 / 多層スパース表現 / オンライン学習 / エピグラフ変形 / 指向性テンソル辞書 / コサインサイン変調フィルタバンク / 最適化 / 構造テンソル全変動量 / 多重解像度コサインサイン変調指向性フレーム / 情報通信工学 / 映像圧縮 / スパースコーディング / テンソル / 辞書
Outline of Final Research Achievements

In this study, a high-resolution video sparse representation method based on a directional tensor dictionary is established.In order to represent large scale tensor data such as high-definition, multi-spectral, multi-viewpoint video sparsely (for signal compression and restoration), a large tensor dictionary is required. However, due to the multidimensional nature of tensor, learning tensor dictionaries becomes difficult when the number of tensor dimensions becomes large. Since directional correlations between pixels of gray scale images (high correlations in the vertical, horizontal and diagonal directions) are also possible in video, we designed a fixed large-scale tensor dictionary with directional elements and developed an algorithm for sparse representation of high-resolution video.

Academic Significance and Societal Importance of the Research Achievements

高解像度映像スパース表現のための大規模テンソル辞書を非学習型辞書の多層線形結合によって生成するコンセプトは非常にユニークであり,またその効果を確認することができた.また本研究で開発したエピグラフ変形による各層のパラメータ学習手法は,近年活発に研究が進められている深層ニューラルネットワーク(DNN)のパラメータ学習に応用できると考えられる.DNNの性質はブラックボックスになっている部分が多く,これまで経験的な試行錯誤によって開発が進められてきたが,エピグラフ変形を架け橋として,理論が整備されている凸最適化工学の知見を活用しながら,更に高度なDNNを構築できると考えられる.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (21 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] ニューヨーク大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Sound Event Detection Utilizing Graph Laplacian Regularization with Event Co-Occurrence2020

    • Author(s)
      Keisuke Imoto, Seisuke Kyochi
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: E103.D Issue: 9 Pages: 1971-1977

    • DOI

      10.1587/transinf.2019EDP7323

    • NAID

      130007894620

    • ISSN
      0916-8532, 1745-1361
    • Year and Date
      2020-09-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variable Macropixel Spectral-Spatial Transforms With Intra- and Inter-Color Decorrelations for Arbitrary RGB CFA-Sampled Raw Images2020

    • Author(s)
      Suzuki Taizo, Kyochi Seisuke
    • Journal Title

      IEEE Signal Processing Letters

      Volume: 27 Pages: 466-470

    • DOI

      10.1109/lsp.2020.2977500

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Image boundary extension with mean value for cosine-sine modulated lapped/block transforms2018

    • Author(s)
      Ryoma Ishibashi, Taizo Suzuki, Seisuke Kyochi, and Hiroyuki Kudo
    • Journal Title

      IEEE Transactions on Circuits and Systems for Video Technology

      Volume: - Issue: 1 Pages: 1-1

    • DOI

      10.1109/tcsvt.2017.2771461

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Joint Sparsity and Order Optimization Based on ADMM with Non-Uniform Group Hard Thresholding2018

    • Author(s)
      Ryo Matsuoka, Seisuke Kyochi, Shunsuke Ono, Masahiro Okuda
    • Journal Title

      IEEE Transactions on Circuits and Systems I: Regular Papers

      Volume: 65 Issue: 5 Pages: 1602-1613

    • DOI

      10.1109/tcsi.2017.2763969

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Epigraph reformulation for non-proximal mixed norms2020

    • Author(s)
      Seisuke Kyochi, Shunsuke Ono, and Ivan Selesnick
    • Organizer
      IEEE International Conference on Acoustics, Speech, and Signal Processing
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 色変換を用いた構造テンソル全変動量2020

    • Author(s)
      島村裕哉, 北口史織, 京地清介
    • Organizer
      電子情報通信学会画像工学研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 階層的クラスタリングに基づく局所色核ノルムと画像復元への応用2020

    • Author(s)
      河野有杜, 山中和貴, 京地清介
    • Organizer
      電子情報通信学会画像工学研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] スパース・低ランクモデリングに基づく画像処理2019

    • Author(s)
      京地清介
    • Organizer
      電子情報通信学会スマートインフォメディアシステム研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Multiscale Structure Tensor Total Variation for Image Recovery2019

    • Author(s)
      Watanabe Makoto、Matsuoka Ryo、Kyochi Seisuke、Ono Shunsuke、Okuda Masahiro
    • Organizer
      IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 固有基底変換を用いた高速かつロバストな水中画像補正2018

    • Author(s)
      千々和 憂希, 京地 清介, 馬場 達也, 奥田 正浩
    • Organizer
      電子情報通信学会信号処理研究会第33回信号処理シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] Color affine subspace pursuit for color artifact removal2018

    • Author(s)
      Kazuki Yamanaka, Seisuke Kyochi, Shunsuke Ono, and Keiichiro Shirai
    • Organizer
      IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Universal approach for DCT-based constant-time Gaussian filter with moment preservation2018

    • Author(s)
      Kenjiro Sugimoto, Seisuke Kyochi, and Sei-ichiro Kamata
    • Organizer
      IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] グラフケプストラムに基づく音響シーン分析2018

    • Author(s)
      井本桂右, 京地清介
    • Organizer
      日本音響学会
    • Related Report
      2017 Research-status Report
  • [Presentation] コサイン・サイン変調フィルタバンクを用いた多重解像度指向性フレームの設計2018

    • Author(s)
      小崎祥吾, 野村優介, 京地清介, 鈴木大三
    • Organizer
      電子情報通信学会画像工学研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 空間-スペクトル全変動正則化と二次色変換に基づく偽色抑制2018

    • Author(s)
      友清飛海, 千々和憂希, 京地清介, 白井啓一郎
    • Organizer
      電子情報通信学会画像工学研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] Multiscale directional transforms based on cosine-sine modulated filter banks for sparse directional image representation2017

    • Author(s)
      Yusuke Nomura, Ryutaro Ogawa, Seisuke Kyochi, Taizo Suzuki
    • Organizer
      Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Image enhancement method for underwater images based on discrete cosine eigenbasis transformation2017

    • Author(s)
      Tatsuya Baba, Keishu Nakamura, Seisuke Kyochi, and Masahiro Okuda
    • Organizer
      IEEE International Conference on Image Processing (ICIP), 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] マルチスケール構造テンソル全変動量に基づく画像復元2017

    • Author(s)
      渡辺誠, 京地清介, 小野峻佑
    • Organizer
      PCSJ/IMPS 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 局所色核ノルムに基づく色アフィン部分空間追跡,"2017

    • Author(s)
      山中和貴, 京地清介, 小野峻佑, 白井啓一郎
    • Organizer
      電子情報通信学会信号処理研究会第32回信号処理シンポジウム,
    • Related Report
      2017 Research-status Report
  • [Remarks] Kyochi Laboratory -Publications-

    • URL

      https://sites.google.com/site/s2kkyochi/publications-1?authuser=0

    • Related Report
      2019 Annual Research Report 2018 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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