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2013 Fiscal Year Final Research Report

Measuring States of Plant Photosynthesis by Structured Light Projection

Research Project

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Project/Area Number 23650078
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Perception information processing/Intelligent robotics
Research InstitutionTohoku University

Principal Investigator

OKATANI Takayuki  東北大学, 情報科学研究科, 教授 (00312637)

Project Period (FY) 2011 – 2013
Keywordsコンピュータビジョン / 植物光合成状態計測 / 構造化光投影
Research Abstract

We have studied the application of a range of computer vision techniques of separating reflection components to improving measuring accuracy of chlorophyll fluorescence. One of the main contributions is that we have confirmed that the method of projecting structured light to plants and separating the direct and indirect (or global) components can really extract sub-surface scattering of incident light onto leaves of plants, resulting in the improvement of measuring chlorophyll fluorescence. We have also developed a new method of separating specular and diffuse reflection components based on the dichromatic reflection model.

  • Research Products

    (9 results)

All 2013 2012 2011

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Discrete Maximum Posterior Marginal Inference for Non-uniformly Discretized Variable Space2013

    • Author(s)
      Masaki Saito, Takayuki Okatani, Koichiro Deguchi
    • Journal Title

      Proceedings of IEEE Conference on Computer Vision and Pattern Recognition

      Volume: 1巻 Pages: 57-64

    • DOI

      10.1109/CVPR.2013.15

    • Peer Reviewed
  • [Journal Article] Optimal inergration of photometric and geometric surface measurements using inaccurate reflectance/illumination knowledge2012

    • Author(s)
      Takayuki Okatani, Koichiro Deguchi
    • Journal Title

      Proceedings of IEEE Conference on Computer Vision and Pattern Recognition

      Volume: 1巻 Pages: 254-261

    • Peer Reviewed
  • [Journal Article] Recognizing Surface Qualities from Natural Images Vased on Learning to Rank2012

    • Author(s)
      Takashi Abe, Takayuki Okatani, Koichiro Deguchi
    • Journal Title

      Proceedings of International Conference on Pattern Recognition(ICPR)

      Volume: 1巻 Pages: 3712-3715

    • URL

      http://www.vision.is.tohoku.ac.jp/index.php/download_file/view/34/166/

    • Peer Reviewed
  • [Journal Article] Efficient Algorithm for Low-rank Matrix Factorization with Missing Components and Performance Comparison of Latest Algorithms2011

    • Author(s)
      Takayuki Okatani, Takahiro Yoshida, Koichiro Deguchi
    • Journal Title

      Proceedings of International Conference on Computer Vision

      Volume: 1巻 Pages: 842-849

    • DOI

      10.1109/ICCV.2011.6126324

    • Peer Reviewed
  • [Journal Article] Accurate and robust planartracking based on a model of image sampling and reconstruction process2011

    • Author(s)
      Eisuke Ito, Takayuki Okatani, Koichiro Deguchi
    • Journal Title

      Proceedings of the 10th IEEE International Symposium on Mixed and Augmented Reality(ISMAR)

      Volume: 1巻 Pages: 1-8

    • DOI

      10.1109/ISMAR.2011.6092364

    • Peer Reviewed
  • [Presentation] 非負値行列分解を用いた画像の鏡面反射分離2013

    • Author(s)
      明石康宏, 岡谷貴之
    • Organizer
      情報処学会CVIM研究会
    • Place of Presentation
      東京
    • Year and Date
      2013-05-23
  • [Presentation] デイープニューラルネットワークを用いた物体表面の光沢感認識2013

    • Author(s)
      重川裕和, 岡谷貴之
    • Organizer
      情報処学会CVIM研究会
    • Place of Presentation
      東京
    • Year and Date
      2013-05-23
  • [Presentation] プロジェクタカメラシステムの幾何キャリブレーション2013

    • Author(s)
      岡谷貴之
    • Organizer
      質感脳情報学研究集会「投影型デイスプレイ」
    • Place of Presentation
      大阪
    • Year and Date
      2013-02-21
    • Invited
  • [Presentation] コンピュータビジヨンにおけるMRF最適化問題への平均場近似及びその拡張手法の応用2012

    • Author(s)
      齋藤真樹, 岡谷貴之, 出ロ一郎
    • Organizer
      画像の認識・理解シンポジウ厶
    • Place of Presentation
      福岡
    • Year and Date
      2012-08-06

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Published: 2015-06-25  

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