一种基于小波分解的图像融合方法

在图像配准的基础上,提出了一种利用小波分解和Gabor小波滤波器提取能量测度进行加权的图像融合方法.该方法中,首先对图像进行小波分解,对每一层分解系数使用Gabor滤波器集进行滤波,求取其相应的能量测度,进而使用能量测度值对融合图像相应层的小波系数进行加权处理,从而得到融合后图像相应层分解系数,最后对每一层分解系数进行小波逆变换,得到融合图像.试验结果表明,这种简单的加权系数关系是可行的,而且该方法可以取得较好的图像融合效果.

An Image Fusion Method Based on Wavelet Transformation

This paper proposes a new image fusion method based on Wavelet transformation and Gabor transformation for registered images. The image is decomposed by wavelet, and then every subband is filtered by Gabor filter. By computing the weighting average of the subband of the source image, it gets the parallel subband of the fused image. At last, by negative wavelet transformation, this paper gets the final fusion image. The result of simulation indicates that this method is effectual and can get a better fusion result.