Research Status of Image Fusion: A Review

With the development of computer technology, sensor technology and information processing technology, image fusion, as a powerful tool of information fusion, has been widely used in automatic target recognition, military and medical image fields. This technology utilizes the complementarity of information advantages contained in each image to obtain a clear, comprehensive and accurate image description of the same scene through a certain algorithm. In this paper, we firstly summarized the research status of image fusion methods comprehensively. Secondly, the existing fusion methods of homogeneity and heterogeneity are summarized. Thirdly, several evaluation indexes are introduced. Finally, this paper points out the current problems of image fusion. In a word, the research of image fusion will still have a great development in the next few years.