Automatic water area segmentation method and device for SAR image of complex terrain

摘要

The present disclosure provides an automatic water area segmentation method for an SAR image of a complex terrain, comprising: preprocessing an original SAR image to obtain a preprocessed SAR image; performing a first water area segmentation on the preprocessed SAR image using a threshold segmentation method to obtain a first water area range; extracting a Region Of Interest (ROI) from the first water area range; and performing a second water area segmentation on the ROI using a Local Gauss Distribution Fitting Active Contour Model (LGDF ACM) algorithm to obtain a second water area range. The present disclosure also provides an automatic water area segmentation device for an SAR image of a complex terrain. By using the technical solution according to the present disclosure, the automatic segmentation of a water area from the SAR image of a complex terrain is achieved.