利用6元组松弛法自动配准LiDAR数据与航空影像

¹武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号430079;²武汉市城市规划信息中心,武汉市三阳路13号,430014;³武汉大学遥感信息工程学院,武汉市珞喻路129号430079;⁴中国地质大学(武汉)空间科学技术研究中心,武汉市鲁磨路388号,430074

基金项目: 国家自然科学基金资助项目(40701154)；国家863计划资助项目(SQ2006AA12Z108506)；测绘遥感信息工程国家重点实验室开放研究基金资助项目；国家测绘局西部测图工程项目部资助项目

详细信息

Automatic Registration of LiDAR Data and Aerial Image Based on a 6-Tuples Relaxation

¹State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China;²Wuhan Urban Planning Information Center,13 Sanyang Road,Wuhan 430014,China;(3 School of Remote Sensing and Information Engineering,Wuhan University,129 Luoyu Road,Wuhan 430079,China;(4 Spatial Science and Technology Institution,China University of Geoscience,388 Lumo Road,Wuhan 430074,China

Funds: 国家自然科学基金资助项目(40701154)；国家863计划资助项目(SQ2006AA12Z108506)；测绘遥感信息工程国家重点实验室开放研究基金资助项目；国家测绘局西部测图工程项目部资助项目

摘要: 提出了利用6元组松弛匹配方法实现LiDAR数据与航空影像自动配准的方法。根据建筑物的一般建造原则定义其角点,利用同一水平面的任意3个角点组成的三角形投影前后相似的特点,采用基于6元组的松弛法匹配同名角点,最后利用投影变形规律优化匹配结果。实验证明,该方法无需航空影像内外方位元素,与尺度差异、旋转角无关,基本实现了LiDAR数据与航空影像自动、精确配准。
- LiDAR /
- 航空影像 /
- 角点提取 /
- 相似三角形 /
- 松弛法
Abstract: It is difficult to register LiDAR data and photogrammetric image automatically with traditional methods because of their different imaging manners.We presented a novel method based on a 6-tuples relaxation.First,the intersection of two edges perpendicular to each others is defined as building corner.Then,the rule that triangle consist of three corners with same height is similar with its projection is used to match corners with the 6-tuples relaxation.Finally projection distortion is used to optimize matching.Experimental results prove that the proposed method registers LiDAR data and photogrammetric image automatically and precisely without interior or exterior orientations,and immune to affines and rotations.
- LiDAR /
- aerial image /
- extraction corners /
- similar triangles /
- relaxation matching