Heterogenous image change detection method and device based on structure regression fusion

The invention relates to a different-source image change detection method and device based on structure regression fusion. The method comprises the following steps: constructing a forward regression model by using a regularized hypergraph Laplacian matrix of an image before an event; constructing a backward regression model by using the regularized hypergraph Laplacian matrix of the image after the event; fusing the hypergraph of the image before the event and the hypergraph of the image after the event, and calculating a regularized hypergraph Laplacian matrix of the fused hypergraph to obtain a smooth constraint of the changed image; constructing a fusion regression model according to the forward regression model, the backward regression model, smooth constraint and change alignment constraint conditions, and solving the fusion regression model by using an alternating direction multiplier method to obtain a difference matrix of the pre-event image and the post-event image; mapping the difference matrix to o