关键词: 小波分析, 图像融合, 融合规则

Abstract: Pointing at the pixel-level image fusion for multi-source digital image, this paper gives a new method for image fusion based on wavelet transform. The choice of different fusion rules is decided by different characteristics of the frequency domain. The low-frequency coefficients are given based on the information of the image edge. The high-frequency coefficients are given based on the combination of window and the fractal dimension. Experimental results demonstrate that the image fused by the new method is better than using traditional approaches both in visual effect and objective evaluation, which provides a new method for the research of image fusion.

Key words: wavelet transform, image fusion, fusion rules