Image change detection method

The invention discloses an image change detection method which comprises the following steps: acquiring two time-phase images including a first image and a second image; obtaining a first difference image by using the two time-phase images, and training the first difference image to obtain a second difference image; classifying the second difference image by using the MRF to obtain an initial classification result, the initial classification result comprising a probability value and a first classification result; inputting the probability value into a unary potential function to obtain first energy, inputting the first classification result into a binary potential function to obtain second energy, and summing the first energy and the second energy to obtain total energy; segmenting the total energy by using a CRF method to obtain a second classification result; and circulating the second classification result by using an iteration method to obtain a final result. According to the method, the second difference