标题：Overall orientation adjustment model of terrestrial laser scanning multi-station point clouds
作者：Yao, Jili ;Jia, Xiangyang ;Ma, Ning ;Xu, Guangpeng ;Han, Baomin
作者机构：[Yao, Jili ;Jia, Xiangyang ;Ma, Ning ;Xu, Guangpeng ;Han, Baomin ] School of Architectural Engineering, Shandong University of Technology, Zibo; 25504 更多
来源：Cehui Xuebao/Acta Geodaetica et Cartographica Sinica
摘要：In order to calculate parameters of coordinate-converting of multi-stations TLS point clouds and convert point clouds in scanner's own coordinate system to specified-engineering surveying coordinate system, a mathematical model regarding bundle block adjustment is proposed. Based on Rodrigo matrix, the model sets the lights between the central of scanner and targets as units which make up adjustment equations. The equation is accompanied unknowns for single light and constraints for lights between shared targets. There are six approaches to bundle block adjustment according to different types of observations. Our experiments showed one of them under the condition of mathematic model lies in the assumption that specified coordinates is of high accuracy while scanned coordinates contains several measurement errors. The final experiments results show that the external-accordance-accuracy is within 1 cm, indicating an order of magnitude improvement when compared with independent models(IMM). Converted scanner's own coordinates are capable of meeting the accuracy of terrestrial map surveying with the scale of 1:500.