| abstract |
The invention relates to flood disaster area extraction, in particular to a method for rapid extraction of flood disaster areas, which comprises obtaining multi-source remote sensing images, pre-processing each remote sensing image and merging the multi-source remote sensing images, and constructing an image pyramid of the fused remote sensing images, layer by layer. Reduce the image resolution, obtain a multi-scale image sequence, construct the objective function, realize superpixel clustering by optimizing the objective function of the edge set, extract the features of each superpixel area, and classify the water body according to the extracted features, and obtain all the water bodies in the flood disaster. The information of all water bodies in the flood disaster is compared with the normal water body information before the flood disaster, and the result of the flooded area is obtained; Reasonable and accurate segmentation of remote sensing images. |