Abstract:

Terrestrial laser scanning (Terrestrial Laser Scanning), whether for a single closed surface, or for a wide range of open terrain mapping, through a limited field of view, different perspectives, different spatial resolution multi-station scanning to complete the form of the objector surface morphometry. Multi-stations point clouds in free coordinate system need to be incorporated into unified coordinate system or coordinate system specified in project and construction. According to aerotriangulation in photogrammetry ,we proposed a theory named Auto-orientation for Terrestrial Laser Scanning Multi-stations Point Clouds with Bundle Block Adjustment Method, which can make an auto-orientation for multi-scanning stations point clouds in whole surveying area.

Key words: Terrestrial Laser Scanning, Multi-stations Point Clouds, Sphere Targets, Block Net Adjustment, Registration Accuracy