多个激活度量相结合的小波图像融合方法

Wavelet Image Fusion Method Based on Multiple Activation Measurement

在小波分解的基础上,将小波系数绝对值与局部能量二个激活度量相结合,提出了一种新的小波图像融合算法。根据二幅源图像在同一分解层及同一方向上相同位置的小波系数绝对值之间和局部能量之间出现的4种不同组态,采取选择和加权平均方法确定融合图像的小波系数。实验结果表明新算法具有较好的融合效果。

By conjoining the wavelet coefficient absolute value with the local area energy, a new image fusion algorithm is proposed based on the techniques of wavelet decomposition. At the same selected location in wavelet domain of two source image, according to four kinds of configurations of the wavelet coefficient absolute value and the local area energy, the wavelet coefficients of fusion image are obtained respectively by selection and weighted average method. The experimental result indicates that the new algorithm is good in fusion result.