Affine invariant shape matching using radon transform and dynamic time warping distance

Authors:
Makoto Hasegawa;Salvatore Tabbone
Affiliations:
LORIA, Université Nancy, Vandoeuvre-lès-Nancy, France;LORIA, Université Nancy, Vandoeuvre-lès-Nancy, France
Venue:
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Year:
2012

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A new shape descriptor defined on the Radon transform

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Abstract

An affine invariant shape matching method using the Radon transform and the dynamic time warping distance is proposed. Our descriptor based on the Radon transform is robust to shapes rotation, uniform scaling, and translation. For non-uniform scaling and shearing, our descriptor has a non-linear sparse and dense distortion relative to the angle coordinates. Therefore, we apply the dynamic time warping to be robust to these transformations. Our performances are better for any affine transformations than the conventional other methods.