Elsevier

Pattern Recognition

Volume 29, Issue 8, August 1996, Pages 1385-1399
Pattern Recognition

Deformation detection with frequency modulation

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Abstract

We describe a robust and knowledge-free method to perform the deformation extraction from textured images. We first recall how the Solid Mechanics approach of deformation leads to a nonseparability of the couple “deformation/motion” in the case of elastic material, but sets a distinction in the plastic case. We then present a frequency-modulation/demodulation based method to recognize the deformation within textured images. Choices, algorithm limits and suitable data are discussed. Eventually, results are presented in the static case, that is on a single image, and then in tracking deformed areas within image sequences.

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