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Proceedings Paper

3D-model-based nonrigid motion estimation for multiview image sequence compression
Author(s): Ioannis Kompatsiaris; Dimitrios Tzovaras; Michael G. Strintzis
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Paper Abstract

This paper describes a procedure for model-based coding of all channels of a multiview image sequence. The 3D model is initialized by accurate adaption of a 2D wireframe model to the foreground object of one of the views. The rigid 3D motion is estimated for each triangle, and spatial homogeneity neighborhood constraints are used to improve the reliability of the estimation efficiency and to smooth the motion field produced. A novel technique is used to estimate flexible motion of the nodes of the wireframe from the rigid 3D motion of each triangle and flexible deformation of each node of the wireframe. The performance of the resulting 3D flexible motion estimation method is evaluated experimentally.

Paper Details

Date Published: 9 January 1998
PDF: 12 pages
Proc. SPIE 3309, Visual Communications and Image Processing '98, (9 January 1998); doi: 10.1117/12.298355
Show Author Affiliations
Ioannis Kompatsiaris, Aristotle Univ. of Thessaloniki (Greece)
Dimitrios Tzovaras, Aristotle Univ. of Thessaloniki (Greece)
Michael G. Strintzis, Aristotle Univ. of Thessaloniki (Greece)


Published in SPIE Proceedings Vol. 3309:
Visual Communications and Image Processing '98
Sarah A. Rajala; Majid Rabbani, Editor(s)

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