利用Contourlet变换和方向Teager能量的图像融合  

Image fusion based on Contourlet transform and directional Teager energy

作　　者：李忠义[1] 张德祥[1] 

机构地区：[1]安徽大学电子科学与技术学院,合肥230039

出　　处：《现代制造工程》2010年第10期25-29,共5页Modern Manufacturing Engineering

基　　金：国家自然科学基金资助项目(60872163);安徽省教育厅基金资助项目(KJ2008A034;KJ2007B305ZC)

摘　　要：提出一种基于Contourlet变换和方向Teager能量的图像融合算法。首先采用Contourlet变换对图像进行分解,然后高频子带图像分别按行和列进行Teager能量计算,选取最大Teager能量作为融合算子,对于低频系数和方向高频系数采用最优加权系数算法来实现图像的融合处理。实验结果表明,提出的算法与小波分解算法相比不仅可以保留原始图像边缘和纹理信息,而且可取得良好的融合视觉效果。A fusion method for image based on Contourlet transform and directional Teager energy is proposed.Firstly,the images are decomposed using Contourlet transform.Then the high-frequency sub-band images are used to calculate Teager energy by rows and columns respectively.Select the largest Teager energy as fusion operator.For low-pass coefficients and the directional high-frequency coefficients are used to select the better coefficients by optimal weighted sum of intensities algorithm for fusion.Experimental results show that compared with wavelet algorithm,the proposed algorithm can get better visual effect and the significant information of original image like textures and contour details is well maintained.

关 键 词：图像融合 CONTOURLET变换 TEAGER能量算子 融合算子 

分 类 号：TN957.54[电子电信—信号与信息处理] TP751.1[电子电信—信息与通信工程]