CT and MRI Image Fusion Based on Contourlet Using a Novel Rule
Contourlet can efficiently represent image and be used as image fusion method. When fusion scheme is selected, fusion performance mainly rests on fusion rules. Fusion rules based on region energy is often used in multiresolution analysis (MRA) image fusion scheme. It is more robust and less sensitive to noise. But small region window is often not the best one, and large window blurs the gap between edges and none edges. This paper proposed a novel fusion rule based on weighted region energy. Each pixel in the window has a weight in inverse proportion to the distance between it and the current fusion pixel. And this rule is applied to both lowpass and bandpass coefficients of contourlet transform. Experiments show that the new fusion scheme has better performance than the fusion methods based on traditional region.
image fusion CT MRI region energy contourlet
Yong Chai You He Chaolong Ying
Research Institute of Information Fusion Naval Aeronautical Engineering Institute Yantai, P.R. China Department of Electronic Information Engineering Naval Aeronautical Engineering Institute Yantai, P.
国际会议
上海
英文
2064-2067
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）