摘要
在工业摄影测量相机畸变模型和标志图像中心提取算法既定的条件下，研究了摄影距离和交会质量对标志点坐标精度的影响，提出用交会质量因子来评价交会质量，建立了标志点坐标精度预估模型，并通过实验数据得出了在特定实验条件下经验公式的系数。通过对比预估精度与真实精度，验证了预估模型的有效性，并利用同样实验条件下的另一组实验数据对经验公式计算所得系数的有效性进行了验证。
On the condition that the camera distortion model and marking image center extraction algorithm are established, the influence of subject distance and intersection quality on the coordinate precision of marking points is studied in this paper. The intersection quality factor is proposed to evaluate the intersection quality, the coordinate precision estimation model of marking point is established, and the coefficients of empirical formula are obtained through the experimental data under certain experimental condition. By comparing the estimated precision with the actual result, the validity of the estimation model is tested, and the effectiveness of the obtained coefficients in empirical formula is verified with another set of experimental data under the same experimental condition.
作者
郭迎钢
李宗春
冯其强
阮国伟
刘浩淼
Guo Yinggang Li Zongchun Feng Qiqiang Ruan Guowei Liu Haomiao(Institute of Geospatial Information, Information Engineering University, Zhengzhou 450052, China Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China)
出处
《测绘科学与工程》
2016年第4期49-54,共6页
Geomatics Science and Engineering
基金
航天器联合测量实验室基金资助项目（CAST-511）.
关键词
摄影距离
交会质量
标志点精度
精度预估
subject distance
intersection quality
marking point accuracy
precision estimation
