A Rooftop-Contour Guided 3D Reconstruction Texture Mapping Method for Building using Satellite Images

Low-quality digital surface model (DSM) and blurred textures result in poor visualization of building reconstructions. In this paper, an edge-based block decomposition method for building rooftop reconstruction and side walls generation is proposed, which is applied in three-dimensional (3D) reconstruction texture mapping of buildings. The rooftop is decomposed into blocks according to the contour of the building's rooftop in the orthophoto. Each block is combined with the DSM generated by the stereo pair of satellite images to reconstruct the rooftop and interpolate to generate the side walls to obtain a regularized 3D point cloud of the building. For better texture mapping effect, single image super-resolution (SISR) method is used to enhance the texture details of remote sensing images. Experimental results show that the proposed method has better visualization effect than other 3D reconstruction methods based on satellite data.