In view of characteristics of high-resolution satellite images, this paper has designed a set of technological schemes

for semiautomatic rapid and easy extraction of building 2-D rooftop information. Firstly image preprocessing was performed by

using the Maximum Homogeneity Neighbor Filter Method. Then Differential Morphological Profile Method was employed which is based

on the reconstruction of classical morphological algorithms such as erosion, dilation as well as open and close operators. Some

preliminary improvements were made in choosing the step of structure operator. The image after-processing was made based on the

combination of Label Region and Threshold Segmentation. Finally the QuickBird image was chosen which covered the campus of

Beijing Normal University as the study area because of its dense man-made buildings. The result shows that this set of

technological schemes not only has a good extraction effect for regular buildings, but also can extract the outline of the

complex building effectively.