Reconstruct 3D building model by using multi-source point clouds
An-Ching Kao & Hao-Hsiung Huang
Nowadays, there are many sources of point clouds which are no longer restricted in airborne LiDAR (Light Detection and Ranging). Multi-source point clouds can provide abundant information for reconstructing a 3D building model. One can use Photosynth, the free software provided by Microsoft, to get point clouds through images taken by digital camera; even they were taken in different time or by different cameras. Itts more convenient and faster. This research tries to integrate the point clouds from ground-based LiDAR and Photosynth by using some control points. Experimental results show that point clouds generated by Photosynth could increase the amount of points of ground-based LiDAR. On the other hand, the latter could provide accurate coordinates to the former. The efficiency of 3D building model reconstruction can be improved by combining multi-source point clouds.
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