Abstract

An efficient dynamic programming (DP) algorithm for 2D elastic matching is proposed. The present DP algorithm requires far less complexity than previous DP-based elastic matching algorithms. This complexity reduction results from piecewise linearization of a 2D-2D mapping which specifies an elastic matching between two given images. Since this linearization can be guided by a priori knowledge related to image patterns to be matched, the present DP algorithm often provides sufficient matching as is shown by experimental results.

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