一种基于WT和NSCT变换的复合医学图像融合算法  

A Compound Medical Image Fusion Algorithm Based on WT and NSCT Transformation

作　　者：陈林[1] 高长花[2] 

机构地区：[1]福建中医药大学管理学院 [2]福建卫生职业技术学院临床医学系,福建福州350108

出　　处：《佳木斯大学学报（自然科学版）》2017年第3期421-423,共3页Journal of Jiamusi University：Natural Science Edition

基　　金：福建中医药大学管课题(X2014027)

摘　　要：提出了一种基于WT和NSCT的复合医学图像融合算法。首先,对原始图像采用NSCT变换获得各方向的低频分量和高频分量,然后计算图像之间的相关系数,采用NSCT根据不同分解层的方向特征,对高频系数根据方向区域进行能量融合。最后,重新组合融合后的高频和低频分量,采用反变换的NSCT得到最终的图像融合结果。实验表明了该方法能完好保留原始图像的边缘和过渡区域信息,具有较好的细节表征能力和融合效果。A compound medial image fusion algorithm based on compound NSCT and wavelet transform was proposed. Firstly, the image was transformed by NSCT to get the low frequency information and high fre- quency information for every direction, and the correction coefficient was computed. Then the WT was used to realize the energy fusion for the direction area of high frequency coefficient according to the different direction features. Finally, the high frequency and low frequency component was grouped by verse NSCT transform after image fusion was finished. The experiment result showed the method can keep the boundary and the transient ar- ea information with the excellent fusion result and fusion effect.

关 键 词：图像融合 小波变换 区域能量 NSCT 相关系数 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]