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Image approximation by minimization of a geometric distance applied to a 3D finite elements based model

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3 Author(s)
Lechat, P. ; CCETT Labs., CNET, Sevigne, France ; Sanson, H. ; Labelle, L.

We propose a method for image coding based on an adaptive non-uniform sampling scheme. The aim is to optimize a 3D mesh-based model such as those involved in finite elements method. To this end, a geometrical distance has been defined, measuring the error between the model and the original image, and a gradient algorithm has been derived to obtain an accurate model deformation. The corresponding 2D rendering lends to an efficient image representation: salient features such as edges are preserved, offering a good subjective quality

Published in:

Image Processing, 1997. Proceedings., International Conference on  (Volume:2 )

Date of Conference:

26-29 Oct 1997