Residential area extraction of high resolution RS imagery based on multiple contour structuring elements with pseudo top-hat transformation

In order to solve the problem in the light residential area extraction from dark background of high resolution RS imagery,the paper proposed a extraction method based on morphological multiple contour structuring elements with pseudo top-hat transformation:firstly,corrosion edge detection was used to preprocess the RS images;secondly,the images were processed with pseudo top-hat transformation by multiple contour structuring elements;then each processing result was weighted fused;finally,the fused images were processed with region growing and tracking contours.Experimental results showed that the proposed method could extract residential area with high accuracy,particularly suitable for light residential area extraction in dark background,which would provide a reference for residential area extraction of RS imagery.