吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (增刊1): 25-28.

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New algorithm of CT/MRI medical image fusion based on wavelet domain

WANG Xin1,2, LI Wei-lin1, LIU Fu2   

  1. 1. College of Computer Science and Engineering, Changchun University of Technology, Changchun 130012, China;
    2. College of Communication Engineering, Jilin University, Changchun 130022, China
  • Received:2012-05-20 Published:2013-06-01

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Abstract:

To solve the problem of losing details with traditional image fusion algorithms based on wavelet transform,a new CT/MRI medical image fusion algorithm based on wavelet domain was proposed.Average gradient and variance were used to determine the low-frequency component of the fused image;Gradient energy ratio weighted fusion rule was used to fuse the high-frequency components.Compared with the traditional methods of wavelet transform,the experimental results show that the new algorithm can fully fuse the two different modes information together and preserve the important features of the original images.The fused image contains richer and more comprehensive details,which increases the amount of the medical image fusion information effectively.

Key words: medical image fusion, wavelet transform, average gradient, gradient energy ratio

CLC Number: 

  • TN911.73

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