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Cortical Representation of Figure-Ground --- Toward Understanding Natural Scenes

Research Project

Project/Area Number 26280047
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Cognitive science
Research InstitutionUniversity of Tsukuba

Principal Investigator

Sakai Ko  筑波大学, システム情報系, 教授 (80281666)

Co-Investigator(Kenkyū-buntansha) 山根 ゆか子  大阪大学, 生命機能研究科, 日本学術振興会特別研究員 (70565043)
田村 弘  大阪大学, 生命機能研究科, 准教授 (80304038)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Fiscal Year 2016: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords認知科学 / 神経科学 / 脳・神経 / 画像・文章・音声等認識 / 心理物理実験 / 知覚 / 視覚 / 計算神経科学
Outline of Final Research Achievements

The aim of the visual system is to know what objects are located on where in a scene. The segregation of figural regions from a background is a fundamental problem in understanding scenes. Here, we have examined the cortical mechanisms underlying the discrimination of figures from the ground. Specifically, the combination of electrophysiology and computational studies has enabled us to find that a small group of neurons in the intermediate-level visual areas is capable of computing figure-ground discrimination in natural scenes.

Report

(4 results)
  • 2017 Final Research Report ( PDF )
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (48 results)

All 2017 2016 2015 2014 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 3 results,  Acknowledgement Compliant: 8 results) Presentation (37 results) (of which Int'l Joint Research: 9 results,  Invited: 5 results) Remarks (2 results)

  • [Journal Article] Modeling the Time-Course of Responses for the Border Ownership Selectivity Based on the Integration of Feedforward Signals and Visual Cortical Interactions.2017

    • Author(s)
      N. Wagatsuma and K. Sakai
    • Journal Title

      Frontiers in Psychology

      Volume: 7

    • DOI

      10.3389/fpsyg.2016.02084

    • NAID

      120007135111

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Representation of local figure-ground by a group of V4 cells2016

    • Author(s)
      M. Hasuike, Y. Yamane, H. Tamura and K. Sakai
    • Journal Title

      Lecture Notes in Computer Science (ICONIP 2016)

      Volume: - Pages: 131-137

    • DOI

      10.1007/978-3-319-46687-3_14

    • ISBN
      9783319466866, 9783319466873
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Perceptual Representation of Material Quality --- Adaptation to BRDF-morphing Images2016

    • Author(s)
      K. Kudou and K. Sakai
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 9947 Pages: 208-212

    • DOI

      10.1007/978-3-319-46681-1_25

    • ISBN
      9783319466804, 9783319466811
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Sparse coding generates curvature selectivity in V4 neurons.2016

    • Author(s)
      Y. Hatori, T. Mashita and K. Sakai
    • Journal Title

      Journal of Optical Society of America, A

      Volume: 33 Issue: 4 Pages: 552-537

    • DOI

      10.1364/josaa.33.000527

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Perceptual Representation and Effectiveness of Local Figure-Ground Cues in Natural Contours.2015

    • Author(s)
      K. Sakai, S. Matsuoka, K. Kurematsu and Y. Hatori
    • Journal Title

      Frontiers in Psychology

      Volume: 6

    • DOI

      10.3389/fpsyg.2015.01685

    • NAID

      120007135800

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Facilitatory mechanisms of specular highlights in the perception of depth.2015

    • Author(s)
      K. Sakai, R. Meiji and T. Abe
    • Journal Title

      Vision Research

      Volume: 115 Pages: 188-198

    • DOI

      10.1016/j.visres.2015.05.001

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Figure-Ground Segregation by a Population of V4 cells --- A Computational Analysis on Distributed Representation.2015

    • Author(s)
      Hasuike M, Ueno S, Minowa D, Yamane Y, Tamura H and Sakai K
    • Journal Title

      22nd International Conference on Neural Information Processing (ICONIP) 2015. Lecture Notes in Computer Science

      Volume: 9490 Pages: 617-622

    • DOI

      10.1007/978-3-319-26535-3_70

    • ISBN
      9783319265346, 9783319265353
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Neural construction of 3D medial axis from the binocular fusion of 2D MAs2015

    • Author(s)
      W. Qiu, Y. Hatori and K. Sakai
    • Journal Title

      Neurocomputing

      Volume: 149 Pages: 546-558

    • DOI

      10.1016/j.neucom.2014.08.019

    • NAID

      120007136494

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Perception of Symmetry in Natural Images --- A Cortical Representation of Shape2014

    • Author(s)
      K. Sakai, K. Kurematsu, and S. Matsuoka
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 8836 Pages: 135-141

    • DOI

      10.1007/978-3-319-12643-2_17

    • ISBN
      9783319126425, 9783319126432
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 大脳皮質はどのように物体を表現しているのか --- 自然画像に最適化した階層的抽象化2017

    • Author(s)
      酒井 宏
    • Organizer
      つくば新分野産業開拓懇談会
    • Place of Presentation
      筑波研究支援センター,茨城県つくば市
    • Year and Date
      2017-02-03
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 対称軸への順応形状とパターンの相互作用2017

    • Author(s)
      坂田結衣,酒井 宏
    • Organizer
      日本視覚学会,2017 冬季大会
    • Place of Presentation
      NHK技術研究所,東京都世田谷区
    • Year and Date
      2017-01-20
    • Related Report
      2016 Annual Research Report
  • [Presentation] 表面質感の皮質表現―順応実験による心理物理学的探索―2017

    • Author(s)
      工藤功基,酒井 宏
    • Organizer
      日本視覚学会,2017 冬季大会
    • Place of Presentation
      NHK技術研究所,東京都世田谷区
    • Year and Date
      2017-01-20
    • Related Report
      2016 Annual Research Report
  • [Presentation] Wavelet変換を用いた光沢感を生起する照明の探索2017

    • Author(s)
      森 唯人,酒井 宏
    • Organizer
      日本視覚学会,2017 冬季大会
    • Place of Presentation
      NHK技術研究所,東京都世田谷区
    • Year and Date
      2017-01-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] Figure-Ground Segregation by a Population of V4 cells.2016

    • Author(s)
      K. Sakai, M. Hasuike, D. Minowa, Y. Yamane, H. Tamura
    • Organizer
      Society of Neuroscience, Annual Meeting 2016
    • Place of Presentation
      San Diego, CA, USA
    • Year and Date
      2016-11-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Perceptual Representation of Material Quality -- Adaptation to BRDF-morphing Images2016

    • Author(s)
      K. Kudou and K. Sakai
    • Organizer
      International Conference on Neural Information Processing(ICONIP) 2016
    • Place of Presentation
      京都大学,京都市
    • Year and Date
      2016-10-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Representation of local figure-ground by a group of V4 cells.2016

    • Author(s)
      M. Hasuike, Y. Yamane, H. Tamura and K. Sakai
    • Organizer
      International Conference on Neural Information Processing(ICONIP) 2016
    • Place of Presentation
      京都大学,京都市
    • Year and Date
      2016-10-17
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脳科学から見えてくる新世代の人工知能(大脳皮質からDeep Leaningへ)2016

    • Author(s)
      酒井 宏
    • Organizer
      認知症高齢者見守り機構の研究開発 定例会
    • Place of Presentation
      名古屋工業大学,名古屋市
    • Year and Date
      2016-06-20
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] ニューロサイエンス最前線:大脳皮質からディープラーニングへ2016

    • Author(s)
      酒井 宏
    • Organizer
      茨城研究開発型企業交流協会(IRDA) 総会
    • Place of Presentation
      筑波山江戸屋,茨城県つくば市
    • Year and Date
      2016-05-26
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Adaptation to Symmetry Axis.2016

    • Author(s)
      Y. Sakata and K. Sakai
    • Organizer
      Vision Sciences Society, Annual Meeting 2016
    • Place of Presentation
      St. Petersburg, FL, USA
    • Year and Date
      2016-05-16
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Adaptation to Symmetry Axis.2016

    • Author(s)
      Y. Sakata and K. Sakai
    • Organizer
      Vision Sciences Society, Annual Meeting 2016
    • Place of Presentation
      St. Petersburg, FL, U.S.A.
    • Year and Date
      2016-05-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous Representation of Shape and Material --- Adaptation to Material Alters the Perception of Depth ---2016

    • Author(s)
      K. Sakai and T. Oyakawa
    • Organizer
      Vision Sciences Society, Annual Meeting 2016
    • Place of Presentation
      St. Petersburg, FL, USA
    • Year and Date
      2016-05-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous Representation of Shape and Material --- Adaptation to Material Alters the Perception of Depth ---2016

    • Author(s)
      K. Sakai and T. Oyakawa
    • Organizer
      Vision Sciences Society, Annual Meeting 2016
    • Place of Presentation
      St. Petersburg, FL, U.S.A.
    • Year and Date
      2016-05-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 対称性の知覚と皮質対応―対称軸への順応2016

    • Author(s)
      坂田結衣、酒井 宏
    • Organizer
      日本視覚学会 冬季大会
    • Place of Presentation
      工学院大学(東京都新宿区)
    • Year and Date
      2016-01-22
    • Related Report
      2015 Annual Research Report
  • [Presentation] 質感知覚の照明依存性~照明光の計算論的表現~2016

    • Author(s)
      森 唯人、酒井 宏
    • Organizer
      日本視覚学会 冬季大会
    • Place of Presentation
      工学院大学(東京都新宿区)
    • Year and Date
      2016-01-22
    • Related Report
      2015 Annual Research Report
  • [Presentation] 視覚皮質における質感表現の探索―BRDF morphing刺激を用いた順応実験―2016

    • Author(s)
      工藤功基、酒井 宏
    • Organizer
      日本視覚学会 冬季大会
    • Place of Presentation
      工学院大学(東京都新宿区)
    • Year and Date
      2016-01-22
    • Related Report
      2015 Annual Research Report
  • [Presentation] 物体領域知覚の皮質メカニズムの究明-図地と図方向知覚の優位性と眼球運動-2016

    • Author(s)
      卜部みか、酒井 宏
    • Organizer
      日本視覚学会 冬季大会
    • Place of Presentation
      工学院大学(東京都新宿区)
    • Year and Date
      2016-01-21
    • Related Report
      2015 Annual Research Report
  • [Presentation] 質感に順応して変化する奥行き知覚2016

    • Author(s)
      親川武仕、酒井 宏
    • Organizer
      日本視覚学会 冬季大会
    • Place of Presentation
      工学院大学(東京都新宿区)
    • Year and Date
      2016-01-20
    • Related Report
      2015 Annual Research Report
  • [Presentation] Simultaneous Perception of Material Qualities and Depth.2015

    • Author(s)
      T. Oyakawa and K. Sakai
    • Organizer
      日本神経回路学会,全国大会
    • Place of Presentation
      電気通信大学(東京都調布市)
    • Year and Date
      2015-09-03
    • Related Report
      2015 Annual Research Report
  • [Presentation] Capability of Figure-Ground Discrimination by a Population of V4 cells.2015

    • Author(s)
      M. Hasuike, Y. Yamane, H. Tamura and K. Sakai
    • Organizer
      日本神経回路学会,全国大会
    • Place of Presentation
      電気通信大学(東京都調布市)
    • Year and Date
      2015-09-03
    • Related Report
      2015 Annual Research Report
  • [Presentation] 視覚皮質の相互作用が決定するBorder-Ownership細胞のダイナミクス.2015

    • Author(s)
      我妻伸彦,酒井 宏
    • Organizer
      日本神経回路学会,全国大会
    • Place of Presentation
      電気通信大学(東京都調布市)
    • Year and Date
      2015-09-02
    • Related Report
      2015 Annual Research Report
  • [Presentation] Direction of Figure in Natural Contours by Population Coding of Surround-Modulation Models and V4 Neuronal Activities.2015

    • Author(s)
      M. Hasuike, Y. Nakata, Y. Yamane, H. Tamura and K. Sakai
    • Organizer
      Asia-Pacific Conference on Vision 2015
    • Place of Presentation
      NTU, Singapore
    • Year and Date
      2015-07-11
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direction of Figure in Natural Contours by Population Coding of Surround-Modulation Models and V4 Neuronal Activities2015

    • Author(s)
      Masaharu Hasuike, Yusuke Nakata, Yukako Yamane, Hiroshi Tamura and Ko Sakai
    • Organizer
      Aaia-Pacific Conference on Vision
    • Place of Presentation
      Singapore
    • Year and Date
      2015-07-10 – 2015-07-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Adaptation to Symmetry Axis --- Towards Understanding the Cortical Representation of Shape ---2015

    • Author(s)
      Ko Sakai, Ken Kurematsu and Yui Sakata
    • Organizer
      Aaia-Pacific Conference on Vision
    • Place of Presentation
      Singapore
    • Year and Date
      2015-07-10 – 2015-07-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] Adaptation to Symmetry Axis --- Towards Understanding the Cortical Representation of Shape ---.2015

    • Author(s)
      K. Sakai, K. Kurematsu and Y. Sakata
    • Organizer
      Asia-Pacific Conference on Vision 2015
    • Place of Presentation
      NTU, Singapore
    • Year and Date
      2015-07-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cortical Representation of Meterial: Adaptation to Reflectance Distribution Function2015

    • Author(s)
      K. Kudo and K. Sakai
    • Organizer
      AEARU CS-WT workshop 2015
    • Place of Presentation
      筑波大学(茨城県)
    • Year and Date
      2015-02-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] Curvatures of Natural Contours Facilitate Neural Responses of Figure-Ground2015

    • Author(s)
      M. Hasuike, Y. Yamane, H. Tamura and K. Sakai
    • Organizer
      AEARU CS-WT workshop 2015
    • Place of Presentation
      筑波大学(茨城県)
    • Year and Date
      2015-02-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] The Simultaneous Perception of Material Qualities and Depth in Human Vision2015

    • Author(s)
      T. Oyakawa and K. Sakai
    • Organizer
      AEARU CS-WT workshop 2015
    • Place of Presentation
      筑波大学(茨城県)
    • Year and Date
      2015-02-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] Global and local properties in the perception of figure-ground2015

    • Author(s)
      M. Urabe and K. Sakai
    • Organizer
      AEARU CS-WT workshop 2015
    • Place of Presentation
      筑波大学(茨城県)
    • Year and Date
      2015-02-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] Synchronous Firing Caused by Natural Image Contours2015

    • Author(s)
      D. Minowa, Y. Yamane, H. Tamura and K. Sakai
    • Organizer
      AEARU CS-WT workshop 2015
    • Place of Presentation
      筑波大学(茨城県)
    • Year and Date
      2015-02-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] 質感に依存して変化する奥行き知覚2015

    • Author(s)
      親川武仕, 酒井 宏
    • Organizer
      日本視覚学会 2015 冬季大会
    • Place of Presentation
      工学院大学(東京都)
    • Year and Date
      2015-01-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] 視覚皮質における質感表現の探索 -BRDF morphing刺激を用いた順応実験-2015

    • Author(s)
      工藤功基, 酒井 宏
    • Organizer
      日本視覚学会 2015 冬季大会
    • Place of Presentation
      工学院大学(東京都)
    • Year and Date
      2015-01-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] 物体領域知覚における大域性と局所性 -図地知覚と図方向知覚の関係から見る皮質メカニズムの究明-2015

    • Author(s)
      卜部みか, 酒井 宏
    • Organizer
      日本視覚学会 2015 冬季大会
    • Place of Presentation
      工学院大学(東京都)
    • Year and Date
      2015-01-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] 対称軸への順応2015

    • Author(s)
      榑松憲, 酒井 宏
    • Organizer
      日本視覚学会 2015 冬季大会
    • Place of Presentation
      工学院大学(東京都)
    • Year and Date
      2015-01-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] A search for material representation in the cortex2014

    • Author(s)
      T. Oyakawa and K. Sakai
    • Organizer
      Annual Conference of Japanese Neural Network Society 2014
    • Place of Presentation
      はこだて未来大学(北海道)
    • Year and Date
      2014-09-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] Sparseness and surface representation in the generation of curvature selectivity2014

    • Author(s)
      Y. Hatori, T. Mashita and K. Sakai
    • Organizer
      Vision Sciences Society, Annual Meeting 2014
    • Place of Presentation
      St. Petersburg, FL, U.S.A.
    • Year and Date
      2014-05-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] Perceptual characteristics of natural contours and their contributions to figure/ground segregation2014

    • Author(s)
      K. Sakai, K. Kurematsu and S. Matsuoka
    • Organizer
      Vision Sciences Society, Annual Meeting 2014
    • Place of Presentation
      St. Petersburg, FL, U.S.A.
    • Year and Date
      2014-05-17
    • Related Report
      2014 Annual Research Report
  • [Remarks] 研究テーマ概要のご紹介

    • URL

      http://www.cvs.cs.tsukuba.ac.jp/research.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] Subjects of Research

    • URL

      http://www.cvs.cs.tsukuba.ac.jp/research.html

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2019-03-29  

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