摘要
地面激光扫描技术通过有限视场、不同视角、不同空间分辨率的多站扫描获得的点云,需要纳入到指定的测量坐标系后才能用于工程测量。本文以摄影测量的空中三角测量理论为基础,提出基于光束法区域网平差的地面多站点云自动整体配准理论,通过配准标志的布设及测量实现全区域网的构建,解算光束法区域网平差。试验表明,配准后点云平面点位中误差为20.8mm,高程中误差为9.7mm,证明了配准的高精度和可靠性。
Point cloud data, generated through limited field of view, different perspectives, different spatial resolution by terrestrial laser scanning(TLS), is essential to incorporated into unified coordinate system so as to be applied in engineering surveying. According to aerotriangulation in photogrammetry, a theory named auto-orientation was proposed 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.
出处
《测绘学报》
EI
CSCD
北大核心
2014年第7期711-716,723,共7页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金(41074001)
