Multimodal Medical Image Fusion Methods Based on Improved Discrete Wavelet Transform

XU Leia, TIAN Shu-changa,CUI Canb, MENG Qing-leb,YANG Ruib, JIANG Hong-binga,WANG Fengb

中国医疗设备 ›› 2016, Vol. 31 ›› Issue (6) : 1-6.

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PDF(2547 KB)
中国医疗设备 ›› 2016, Vol. 31 ›› Issue (6) : 1-6.
专论

Multimodal Medical Image Fusion Methods Based on Improved Discrete Wavelet Transform

  • XU Leia, TIAN Shu-changa,CUI Canb, MENG Qing-leb,YANG Ruib, JIANG Hong-binga,WANG Fengb
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摘要

Objective This paper proposed a novel algorithm of discrete wavelet transform (DWT) which is used for multimodal medical image fusion. Methods The source medical images are initially transformed by DWT followed by fusing low and high frequency sub-images. Then, the “coefficient absolute value” that can provide clear and detail parts is adapted to fuse high-frequency coefficients, where as the “region energy ratio” which can efficiently preserve most information of source images is employed to fuse low-frequency coefficients. Finally, the fused image is reconstructed by inverse wavelet transform. Results Visually and quantitatively experimental results indicate that the proposed fusion method is superior to traditional wavelet transform and the existing fusion methods. Conclusion The proposed method is a feasible approach for multimodal medical image fusion which can obtain more efficient and accurate fusions results even in the noise environment.

关键词

discrete wavelet transform / multimodal / image fusion / fusion rule

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导出引用
XU Lei, TIN Shu-hng, UI n, . Multimodal Medical Image Fusion Methods Based on Improved Discrete Wavelet Transform[J]. 中国医疗设备, 2016, 31(6): 1-6
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参考文献

[1] Singh R,Khare A.Multiscale medical image fusion in wavelet domain[J].Scientific World J,2013. [2] Yang Y,Tong S,Huang S,et al.Log-gabor energy based multimodalmedical image fusion in NSCT domain[J].Comput Math Methods Med,2014. [3] Dong J,Zhuang D,Huang Y,et al.Advances in multi-sensor data fusion:algorithms and applications[J].Sensors(Basel), 2009,9(10):7771-7784. [4] Bedi SS,Khandelwal R.Comprehensive and comparative study of image fusion techniques[J].IJSCE,2013:2231-2307.

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