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Proceedings Paper

Evaluation of skin and muscular deformations in a non-rigid motion analysis
Author(s): Michela Goffredo; Marco Carli; Silvia Conforto; Daniele Bibbo; Alessandro Neri; Tommaso D'Alessio
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Paper Abstract

During contraction and stretching, muscles change shape and size, and produce a deformation of skin tissues and a modification of the body segment shape. In human motion analysis, it is indispensable to take into account this phenomenon and thus approximating body limbs to rigid structures appears as restrictive. The present work aims at evaluating skin and muscular deformation, and at modeling body segment elastic behavior by analysing video sequences that capture a sport gesture. The soft tissue modeling is accomplished by using triangular meshes that automatically adapt to the body segment during the execution of a static muscle contraction. The adaptive triangular mesh is built on reference points whose motion is estimated by using the technique based on Gauss Laguerre Expansion. Promising results have been obtained by applying the proposed method to a video sequence, where an upper arm isometric contraction was present.

Paper Details

Date Published: 14 April 2005
PDF: 7 pages
Proc. SPIE 5746, Medical Imaging 2005: Physiology, Function, and Structure from Medical Images, (14 April 2005); doi: 10.1117/12.595239
Show Author Affiliations
Michela Goffredo, Univ. Roma Tre (Italy)
Marco Carli, Univ. Roma Tre (Italy)
Silvia Conforto, Univ. Roma Tre (Italy)
Daniele Bibbo, Univ. Roma Tre (Italy)
Alessandro Neri, Univ. Roma Tre (Italy)
Tommaso D'Alessio, Univ. Roma Tre (Italy)

Published in SPIE Proceedings Vol. 5746:
Medical Imaging 2005: Physiology, Function, and Structure from Medical Images
Amir A. Amini; Armando Manduca, Editor(s)

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