PET and CT images registration by means of soft computing and information fusion

  • Authors:
  • H. Costin;Cr. Rotariu

  • Affiliations:
  • Faculty of Medical Bioengineering, "Gr.T. Popa" Univ. of Medicine and Pharmacy, Iaşi, Romania and Institute for Computer Science, Romanian Academy, Iaşi, Romania;Faculty of Medical Bioengineering, "Gr.T. Popa" Univ. of Medicine and Pharmacy, Iaşi, Romania and Institute for Computer Science, Romanian Academy, Iaşi, Romania

  • Venue:
  • BEBI'08 Proceedings of the 1st WSEAS international conference on Biomedical electronics and biomedical informatics
  • Year:
  • 2008

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Abstract

Medical imaging mainly treats and processes missing, ambiguous, complementary, redundant and distorted data. In this paper, we propose a new PET-CT image fusion / registration method. We first apply a mutual information based registration algorithm and then fuse the PET and CT images using the 2v-Granular Support Vector Machine. The fused image contains the properties of both PET and CT images and can efficiently be used for image registration. We validated the performance of the proposed image fusion algorithm, using a PET-CT database and compared the performance of the proposed 2v-GSVM based image fusion algorithm by choosing a new image fusion algorithm proposed in the literature. Experimental results show that the proposed image fusion method outperforms existing fusion algorithms.