摘要
针对传统的环物摄影测量设备精度不高的缺陷,本文在环物摄影测量法的基础上,提出了基于全自动标定技术的精度提升策略,并成功应用在自主研制的三维环物影像获取系统中。该策略克服了传统相机标定技术需要人工选点,耗时耗力的缺陷,同时有效的解决了环物摄影测量解算中,相机高精度空间参数定位的问题。因此,本文提出的方法可以在保证实时效率的前提下,提高环物摄影测量设备生产的三维数字化模型的精度,具有广泛的应用前景。
To tackle the problem of low geometric accuracy of traditional Multi-view 3D Reconstruction （MV3DR） instrument, this paper proposed an accuracy improvement method by using automatic calibration technology, and applied this method to the MV3DR instrument developed by the authors. This method teckles the problem of expensive time cost in the traditional camera calibration processing, and achieves the high-accuracy calculation for exterior orientation elements of camera. Because of the automatic characteristics, this method can improve the 3D reconstruction accuracy of MV3DR with inexpensive time cost, and therefore has wide application prospect.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2017年第2期243-248,共6页
Acta Geoscientica Sinica
基金
国土资源部公益性行业科研专项经费(编号:201011003)资助~~
关键词
全自动相机标定技术
环物摄影测量系统
圆心定位
角距
控制点识别
automatic calibration technology
multi-view 3D reconstruction instrument
central location
angledistance
control point identification
