Multi-resolution 3D reconstruction of city statue based on laser scanning and photogrammetric concept

In order to improve the visualization effects of some areas in cyber city, it's often required to reconstruct 3D model of city statues. In this paper, we present a pipeline to build 3D city statue model of high fidelity that fusing multi-resolution LIDAR data and high-resolution digital images. Firstly, the classic ICP algorithm is used to register multi-resolution LIDAR data. Secondly, the geometric seams between multi-resolution LIDAR data are fused by a progressive fusion strategy. Finally, a virtual camera based on basic Photogrammetry concept is proposed to do the texture mapping. Combining all kinds of automatic and semi-automatic methods, the pipeline works well for 3D reconstruction with multi-resolution laser scanning data and high-resolution digital images.