Medical image fusion using discrete fractional wavelet transform

作者：Xu, Xiaojun^*; Wang, Youren; Chen, Shuai

来源：Biomedical Signal Processing and Control, 2016, 27: 103-111.

DOI：10.1016/j.bspc.2016.02.008

• Medical image fusion
• Fractional wavelet transform
• Wavelet
• Multiresolution analysis

A multimodal medical image fusion method based on discrete fractional wavelet (DFRWT) is presented in this paper. With a change in p order in domain (0,1], source medical images are decomposed by DFRWT in different p order. The sparsity character of the mode coefficients in subband images changes. According to the method, to enhance the correlation between subband coefficients, the non-sparsity character of the mode coefficients in low p order should be utilized. The coefficients of the all subbands are fused using the weighted regional variance rule. Finally, inverse DFRWT is applied to obtain a fused image. Subjective and objective analyses of the results and comparisons with other multiresolution domain techniques show the effectiveness of the proposed scheme in fusing multimodal medical images.

• 出版日期2016-5
• 单位淮南师范学院; 南京航空航天大学