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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 9 — Sep. 10, 2005
  • pp: 510–512

Image registration by maximization of mutual information based on edge width matching using particle swarm optimization

Xuan Yang and Jihong Pei  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 9, pp. 510-512 (2005)


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Abstract

Mutual information (MI) based image registration has been found to be quite effective in many medical image applications. However, standard MI hampers the convergence of registration transformation parameters since it contains local maxima. In this paper, a novel registration method is proposed. At first, MI based on edge width matching is computed to avoid great change of joint probability distribution and get less local maxima. Particle swarm optimization (PSO), which combines local search methods with global ones balancing exploration and exploitation, is done to search the optimal registration parameter. PSO has less computational complexity as its complex behavior follows only a few simple rules. It could avoid local maxima and reach global optimal results. This method is applicable to a variety of multimodal images, and suitable to different interpolation methods. Theoretical analysis and experiments show that this method is effective and accurate to register multimodal medical images.

© 2005 Chinese Optics Letters

OCIS Codes
(100.0100) Image processing : Image processing
(350.2660) Other areas of optics : Fusion

Citation
Xuan Yang and Jihong Pei, "Image registration by maximization of mutual information based on edge width matching using particle swarm optimization," Chin. Opt. Lett. 3, 510-512 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-9-510


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