Construction of a normal model for beating heart using computer vision techniques

• Project/Area Number: 19500139
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Perception information processing/Intelligent robotics
• Research Institution: Chiba University
• Principal Investigator: IMIYA Atsushi Chiba University, 総合メディア基盤センター, 教授 (10176505)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2007: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: コンピュータビジョン / パターン認識 / アルゴリズム / 画像 / 文章 / 音声認 / 応用数学 / 医療・福祉 / 画像文書音声認識

Research Abstract

心臓のような3次元空間において、剛粘性を持つ物体の表面の動きを分類する手法を画像理解の手法、非線形偏微分方程式理論、最適化問題による手法を融合して開発した。すなわち、N次元ユークリッド空間で定義された濃度分布の微小運動としてのオプティカルフローを定義した。さらに、ナーゲル=エンケルマンの拘束式の一般の次元への拡張を導くと共に、この制約式と対をなす新たな拘束を定義した。また、ホーン=シャンクの拘束式、ナーゲル=エンケルマンの拘束式、新しい拘束式、すべての場合に収束する差分スキームを導出した。そして、3つの手法による解を比較し、新しい制約条件に基づく手法は3次元物体の運動境界での接平面にそった運動を抽出できることを示した。

Research Products

• [Journal Article] N-Point Hough transform for line detection (2009)
  • Author(s): Y. Mochizuki, A. Torii, A. Imiya
  • Journal Title: Journal of Visual Communication and Image Representation Vol. 20 Pages: 242-253
  • Peer Reviewed
• [Journal Article] Unsupervised clusterdiscovery using statistics in scale space (2009)
  • Author(s): T. Sakai, A. Imiya
  • Journal Title: Engineering Applications of Artificial Intelligence Vol. 22 Pages: 92-100
  • Peer Reviewed
• [Journal Article] Independent Components of Optical Flow in a Multiresolution Image Sequence (2008)
  • Author(s): N. Ohnishi, A. Imiya
  • Journal Title: International Journal of Pattern Recognition and Artificiall Iintelligence Vol. 22 Pages: 929-944
  • Peer Reviewed
• [Journal Article] Independent Components of Optical Flow in a Multiresolution (2008)
  • Author(s): Naoya Ohnishi, Atsushi Imiya
  • Journal Title: Int'l J. of Pattern Recognition and Artificial Intelligence 22 Pages: 929-944
  • Peer Reviewed
• [Journal Article] Independent Component analysis of optical flow for robot navigation (2008)
  • Author(s): Naoya Ohnishi, Atsushi Imiya
  • Journal Title: Neurocomputing 71 Pages: 2140-2163
  • Peer Reviewed
• [Journal Article] Decomposition and Construction of Neighbourhood Operations Using Linear Algebra. (2008)
  • Author(s): Atsushi Imiya, Yusuke Kameda, Naoya Ohnishi
  • Journal Title: Lecture Notes in Computer Science 4992 Pages: 69-80
  • Peer Reviewed
• [Journal Article] Dynamic Multiresolution Optical Flow Computation (2008)
  • Author(s): N. Ohnishi, Ykameda, A. Imiya, L. Dorst, R. Klette
  • Journal Title: LNCS 4391 Pages: 1-15
  • Peer Reviewed
• [Journal Article] The randomized-Hough-transform-based method for great-circle detection on sphere (2007)
  • Author(s): A. Torii. A. Imiya
  • Journal Title: Pattern Recognition Letters 28 Pages: 1186-1192
  • Peer Reviewed
• [Presentation] Computing the local continuity Order of optical flow using fractional variational method (2009)
  • Author(s): K. Kashu, Y. Kameda, A. Imiya, T. Sakai, Y. Mochizuki
  • Organizer: LNCS in Press
  • Place of Presentation: Bonn(発表予定)
  • Year and Date: 2009-08-27
• [Presentation] Scale space hierarchy of segments (2009)
  • Author(s): H. Nishiguchi, A. Imiya, Tomoya Sakai
  • Organizer: LNCS in Press
  • Place of Presentation: Muenster(発表予定)
  • Year and Date: 2009-08-04
• [Presentation] Cardiac motion analysis using 3D optical flow (2009)
  • Author(s): Yusuke Kameda, Atsushi Imiya
  • Organizer: 第16回計算数理工学フォーラム
  • Place of Presentation: 千葉大学
  • Year and Date: 2009-03-27
• [Presentation] Convergence proof for the Horn-Schunck optical-flow computation scheme using neighborhood decomposition (2008)
  • Author(s): Y. Kameda, A. Imiya, N. Ohnishi. A
  • Organizer: Lecture Notes in Computer Science
  • Place of Presentation: Buffalo(4958, 262-273)
  • Year and Date: 2008-04-15
• [Presentation] Decomposition and construction of neighbourhood operations using linear algebra (2008)
  • Author(s): A. Imiya, Y. Kameda, N. Ohnishi
  • Organizer: Lecture Notes in Computer Science
  • Place of Presentation: Lyon(4992, 69-80)
  • Year and Date: 2008-04-05
• [Presentation] Dynamic Multiresolution Optical Flow Computation (2008)
  • Author(s): N. Ohnishi, Y. Kameda, A. Imiya. L Dorst. R. Klette
  • Organizer: Lecture Notes in Computer Science
  • Place of Presentation: Auckland(4931, 1-15)
  • Year and Date: 2008-02-14
• [Presentation] Dynamic Classification of Volumetric Cardiac Optical-flow using Variational Constraints (2007)
  • Author(s): A.Imiya Y. kameda
  • Organizer: Special Semester on Quantitative Biology analyzed by Mathematical Methods
  • Place of Presentation: RICAM Linz, Astria
  • Year and Date: 2007-11-19
• [Book] in Human Motion Understanding, Modelling, Capture, and Animation, Springer, in Computational Imaging and Vision (2008)
  • Author(s): Y. Kameda, A. Imiya
  • Publisher: The William Harvey Code : Mathematical analysis of optical flow computation for cardiac motion
• [Book] Human Motion:Understanding, Modeling, Capture and Animation (2008)
  • Author(s): B. Rosenhahn, R. Klette, D. Metaxas
  • Total Pages: 633
  • Publisher: Springer
• [Book] Human Motion:Understanding, Modelling, Capture, and Animation (2007)
  • Author(s): Y.Kameda, A.Imiya
  • Total Pages: 636
  • Publisher: Springer
• [Book] Statistical and Geometrical Approaches to Visual Motion Analysis(D. Cremers, B. Rosenhahn, A. L. Yuille)(in Press from Springer volumes in Lecture Notes in Computer Sciences)
  • Author(s): N. Ohnishi, A. Imiya
  • Publisher: Combination of geometrical and statistical methods for visual navigation of autonomous robots
• [Book] In Handbook of Computer Vision and Pattern Recognition, World Scientific in Press
  • Author(s): N. Ohnishi, A. Imiya
  • Publisher: Statistical Aspects of Dominant Plane for Robot Navigation