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On-line Reconstruction of 3-D Structure from Image Sequences Based on Spatio-temporal Information Propagation

Research Project

Project/Area Number 15500117
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Perception information processing/Intelligent robotics
Research InstitutionTokyo Metropolitan University

Principal Investigator

TAGAWA Norio  Tokyo Metropolitan University, Graduate School of Engineering, Associate Professor, 工学研究科, 助教授 (00244418)

Co-Investigator(Kenkyū-buntansha) MINAGAWA Akihiro  Tokyo Metropolitan University, Graduate School of Engineering, Research Associate, 工学研究科, 助手 (00305418)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2004: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2003: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywordsoptical flow / Kalman filter / 3-D shape reconstruction / EM algorithm / MAP estimator / ML estimator / information propagation / image sequence analysis / 動画像 / 形状復元 / 多重解像度処理 / MAP-EMアルゴリズム / 陰影
Research Abstract

1.Results of this project
(1)Development of an information propagation toward a resolution direction
We developed an optical flow computation algorithm using successive two frames, which can solve the aperture problem and the alias problem. Although the basic idea is applying the Kalman filter with a resolution direction, we extended it so as to determine the parameters usually needed to be known before applying the Kalman filter. Through numerical evaluations, it was confirmed that this algorithm correctly works.
(2)Development of an information propagation toward a time direction
We developed a depth computation algorithm based on information propagation toward a time direction using the optical flow estimate and its reliability computed by the above algorithm. This depth computation algorithm also is a concrete of the above Kalman filter having parameter determination function, and we incorporated an interpolation method of the depth, which was newly developed, into this algorithm.
2.Future plan
In this project, we examined the case in which the intensity invariant constraint holds completely. However, for the case that a camera is fixed and target objects moves, such the constraint does not hold. Hence, we are planning to extend the algorithm developed in this project in order to treat the intensity variant situations.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (6 results)

All 2006 2005 Other

All Journal Article (5 results) Publications (1 results)

  • [Journal Article] 多重解像度処理に基づく動きからのベイズ的三次元形状復元2006

    • Author(s)
      川口純矢, 長沼将一, 田川憲男
    • Journal Title

      電子情報通信学会総合大会 情報・システムソサイエティ総合大会特別号 ISS-P-59

      Pages: 77-77

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 情報伝搬を基礎とする動きからの3次元構造復元2006

    • Author(s)
      長沼将一, 須藤優, 田川憲男
    • Journal Title

      映像情報メディア学会メディア工学研究会技術報告 (5月発表予定)

    • NAID

      10018008688

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Bayesian 3-D Shape Reconstruction from Motion based on Multi-resolution Processing2006

    • Author(s)
      J.Kawaguchi, S.Naganuma, N.Tagawa
    • Journal Title

      The 2006 IEICE General Conf., Information and System Society Special Issue no.ISS-P-59

      Pages: 77-77

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Recovery of 3-D Structure from Motion based on Belief Propagation2006

    • Author(s)
      S.Naganuma, Y.Sudoh, N.Tagawa
    • Journal Title

      The Institute of Image Information and Television Engineering Technical Report (in printing)

    • NAID

      10018008688

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Determination of Shape and Reflectance of Planar Object Based on Shading and Motion Information2005

    • Author(s)
      Shichi NAGANUMA, Norio TAGAWA
    • Journal Title

      Int.Workshop on Advanced Imaging Technology

      Pages: 453-457

    • NAID

      110003205367

    • Related Report
      2004 Annual Research Report
  • [Publications] 長沼将一, 田川憲男, 皆川明洋: "陰影と動きに基づく平面物体の形状と反射率の推定"電子情報通信学会2004年総合大会講演論文集. (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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