测绘学报 ›› 2014, Vol. 43 ›› Issue (7): 711-716.

• 学术论文 • 上一篇    下一篇

光束法区域网平差的地面激光扫描多站点云自动定向方法

姚吉利,马宁贾 象阳,韩保民   

  1. 山东理工大学
  • 收稿日期:2013-12-12 修回日期:2013-07-05 出版日期:2014-07-20 发布日期:2014-07-29
  • 通讯作者: 姚吉利 E-mail:ysy_941123@sdut.edu.cn
  • 基金资助:

    约化动力学定轨中关键问题研究

Auto-registration for Terrestrial Laser Scanning Multi-Stations Point Clouds with Bundle Block Adjustment Method

  • Received:2013-12-12 Revised:2013-07-05 Online:2014-07-20 Published:2014-07-29

摘要:

地面激光扫描(Terrestrial Laser Scanning)用于工程测量,需通过有限视场、不同视角、不同空间分辨率的多站扫描,多扫描站的自由坐标系下的点云需要纳入到工程指定坐标系。我们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,包括配准标志的布设测量、全区域网的构建、光书法区域网平差。实验表明,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。

关键词: 地面激光扫描, 多站扫描点云, 球形标靶, 区域网平差, 配准精度

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