Urban Extraction Based on Multi-scale Building Information Extra-Segmentation and SAR Coherence Image

Urban building outline is not only a very important land cover type, but also the key of studying urban building. It is significance on urban construction planning and natural disasters monitoring. This paper discussed the method for building information extracting according to high-resolution SAR coherence image. Through theoretical analysis and test verifying, it had obtained a better effect for extracting the buildings’ profiles or top figures from the coherence image, which often expressed as ‘L’-style top structures from SAR SLC image. This method has been proved the further potential in extracting urban buildings’ structure and profile information, and has some extent of reference means.