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1999 Fiscal Year Final Research Report Summary

A realistic model generation for virtual world construction using real-time image sequence

Research Project

Project/Area Number 09480069
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Intelligent informatics
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

TANIGUCNI Rin-ichiro  Graduate School of Information Science and Electrical Engineering, Kyushu University, Professor, 大学院・システム情報科学研究科, 教授 (20136550)

Co-Investigator(Kenkyū-buntansha) KUSAKA Shigeru  Graduate School of Information Science and Electrical Engineering, Kyushu University, Associate Professor, 大学院・システム情報科学研究科, 助教授 (70234416)
SUGANUMA Akira  Graduate School of Information Science and Electrical Engineering, Kyushu University, Associate Professor, 大学院・システム情報科学研究科, 助教授 (70235852)
KAMATA Seiichiro  Graduate School of Information Science and Electrical Engineering, Kyushu University, Associate Professor, 大学院・システム情報科学研究科, 助教授 (00204602)
TSURUTA Naoyuki  Faculty of Engineering, Fukuoka University, Lecturer, 工学部, 講師 (60227478)
ARITA Daisuke  Graduate School of Information Science and Electrical Engineering, Kyushu University, Research Associate, 大学院・システム情報科学研究科, 助手 (70304756)
Project Period (FY) 1997 – 1999
KeywordsVirtual World / Model Generation / Computer Vision / Image Sequence Analysis / Multi-view Analysis / Shape Analysis / Motion Analysis
Research Abstract

(1) Prototype system development of real-world and virtual-world fusion
In the framework that required information to present the objects in the virtual space consists of a priori information and a posterior observation, we have established the basic methodology of 3D model generation, of which features are as follows : (1) a posteriori observation is not very difficult, (2) a priori information is easily supplied to the system, (3) complex objects, or multi-part deformable objects such as humans and animals. The method is called Analysis by image synthesis, in which model parameters are modified so that the error between the synthesized image based on the model parameters and the observed image is minimum. As the geometrical model to represent object parts, we have used Deformable Super Quadrics (DSQ), which can represent tapering and bending of the parts. Basic modules included the system as follows :
・Tracking system of multi-part deformable objects based on Analysis by image synthesis method
・GUI-based model generation system for initial 3-d objects, which is used in the tracking system
・Visualization of acquired object models and texture mapping
(2) Speed-up and accuracy improvement of the system
To improve the system development in 1. We have investigated the following issues.
・To achieve the speed-up of the system, we have developed time model-space gradient method, which linearize the system mode, and which can be solved by solving a linear simultaneous equation.
・An algorithm of view-point selection among multiple views to achieve more accurate analysis has been developed.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Yonemoto Satoshi, et al: "Shape and Pose Parameter Estimation of 3D Multi-Part Objects"Proc. of Third Asian Conference on Computer Vision (ACCV'98). Vol. 2. 479-486 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yonemoto Satoshi, et al: "Tracking of 3D Multi-part Objects Using Multiple Viewpoint Time-varying Image Sequences"Proc. 14th Int. Conf. on Pattern Recognition. Vol.1. 490-494 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nunomaki Takashi, et al: "Multi-part Object Tracking using Multiple Cameras"Proc. 4th Japan-France Congress on Mechatronics. Vol. 2. 540-545 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yonemoto Satoshi, et al: "Shape and Pose Parameter Acquisition of 3D Multi-Part Objects on Multiple Viewpoint Image Sequences"FORMA (Journal of Society for Science on Form). 13. 321-337 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nunomaki Takashi, et al: "Multi-part Non-rigid Object Tracking Based on Time Model-space Gradients"Proc. 6th Korea-Japan Joint Workshop on Computer Vision. 144-149 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Satoshi Yonemoto, Naoyuki Tsuruta, Rin-chiro Taniguchi: "Shape and Pose Parameter Estimation of 3D Multi-Part Objects"Proc. Of third Asian Conference on Computer Vision (ACCV' 98). Vol. 2. 479-486 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Satoshi Yonemoto, Naoyuki Tsuruta, and Rin-chiro Taniguchi: "Tracking of 3D multi-Part Objects Using Multiple Viewpoint Time-varying Sequences"14th International Conference on Pattern Recognition. 490-494 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takashi Nunomaki, Satoshi Yonemoto, Naoyuki Tsuruta and Rin-Ichiro Taniguchi: "Multi-part Object Tracking using Multiple Camera"Japan-France/ 2nd Asia-Europe Congress on Mechanics. 540-545 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Satoshi Yonemoto, Naoyuki Tsuruta, and Rin-chiro Taniguchi: "Shape and pose parameter acquisition of 3D multi-part objects"FORMA (Journal of Society for Science on From). Vol. 13. 321-337 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takashi Nunomaki, Satoshi Yonemoto, Daisuke Arita, Naoyuki Tsuruta and Rin-ichiro Tabiguchi: "Multi-part Non-rigid Object Tracking Based on Time-space Dradients"Proc. Of the 6th Korea-Japan Joint Workshop on Computer Vision (FCV2000). 144-149 (2000)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2001-10-23  

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