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Optical Engineering

Nonrigid registration based on projected joint entropy combined with gradient similarity
Author(s): Rafael H. C. de Souza; Masao Shimizu; Masatoshi Okutomi; Shin Yoshimura
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Paper Abstract

Our study proposes a nonrigid image registration method between different color channels in a color image sequence. It minimizes the entropy in a dominant subspace of the joint distribution of two or more images. The proposed algorithm is based on the observation that the displacement between color channels affects only the dominant subspace in the joint distribution of pixel values. We also propose the use of gradient direction to give extra robustness to our similarity function. Experiments estimating motion parameters for B-spline nonrigid deformation models demonstrate the effectiveness of the proposed registration technique.

Paper Details

Date Published: 1 December 2010
PDF: 13 pages
Opt. Eng. 49(12) 127002 doi: 10.1117/1.3518073
Published in: Optical Engineering Volume 49, Issue 12
Show Author Affiliations
Rafael H. C. de Souza, Tokyo Institute of Technology (Japan)
Masao Shimizu, Tokyo Institute of Technology (Japan)
Masatoshi Okutomi, Tokyo Institute of Technology (Japan)
Shin Yoshimura, Tokyo Institute of Technology (Japan)

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