Reconstruction of somersaults using dynamical model based on three dimensional model matching method

Shuetsu Kikuchi, Hideo Saito, Kazuo Nakazawa

Research output: Contribution to journalArticle

Abstract

This study presents details of the project that would estimate joint angles of human from captured images by using model matching method. While human subjects perform on a trampoline, the researcher converts the movement into information with a human inertia model. Performance is photographed by four high speed cameras. The posture of human subjects was determined by using model matching method. However, three dimensional model matching method has some weak points such that search range becomes huge. Accordingly, by solving an equation of free-flying system, the joint value of the following body movement is presumed using that of the present body movement. Finally, one forward somersault with half twist at layout position was reconstructed.

Original languageEnglish
Pages (from-to)1809-1816
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume73
Issue number6
Publication statusPublished - 2007 Jun
Externally publishedYes

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High speed cameras

Keywords

  • Bio-motion
  • Image processing
  • Measurement
  • Model matching
  • Silhouette image
  • Somersaults

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "This study presents details of the project that would estimate joint angles of human from captured images by using model matching method. While human subjects perform on a trampoline, the researcher converts the movement into information with a human inertia model. Performance is photographed by four high speed cameras. The posture of human subjects was determined by using model matching method. However, three dimensional model matching method has some weak points such that search range becomes huge. Accordingly, by solving an equation of free-flying system, the joint value of the following body movement is presumed using that of the present body movement. Finally, one forward somersault with half twist at layout position was reconstructed.",
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AB - This study presents details of the project that would estimate joint angles of human from captured images by using model matching method. While human subjects perform on a trampoline, the researcher converts the movement into information with a human inertia model. Performance is photographed by four high speed cameras. The posture of human subjects was determined by using model matching method. However, three dimensional model matching method has some weak points such that search range becomes huge. Accordingly, by solving an equation of free-flying system, the joint value of the following body movement is presumed using that of the present body movement. Finally, one forward somersault with half twist at layout position was reconstructed.

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