旋转多基线摄影光束法平差法方程矩阵带宽优化

发布时间：2018-02-03 02:01

本文关键词： 近景旋转多基线摄影光束法区域网平差等效摄站影像排序带宽　出处：《测绘学报》2016年02期 　论文类型：期刊论文

【摘要】：提出了一种对近景旋转多基线摄影影像进行重新排序编号从而优化光束法区域网平差法方程系数矩阵带宽的方法。首先,根据影像间的相互联系及其地面覆盖范围,计算每张影像的等效摄站位置;然后根据等效摄站间的坐标关系对其进行重新排序编号,得到各影像的逻辑顺序;最后借助影像的逻辑顺序求解平差法方程系数矩阵实际带宽值。试验结果表明,通过上述方法求出的带宽相对于按照影像原始摄影编号计算出的带宽值有很大改进,一定程度上提升了近景旋转多基线摄影实际应用中计算机的运算效率,减少了平差运算对计算机内存的消耗。
[Abstract]:In this paper, a method of reordering and numbering the close-range rotated multi-baseline images to optimize the bandwidth of the coefficient matrix of the adjustment equation of the beam-method area network is proposed. According to the interrelation between the images and the coverage of the ground, the location of the equivalent camera station for each image is calculated. Then, according to the coordinate relation of the equivalent camera station, it is reordered and numbered, and the logical order of each image is obtained. Finally, the real bandwidth of the coefficient matrix of the adjustment equation is solved by the logical sequence of the image. The experimental results show that. The bandwidth obtained by the above method is greatly improved compared with the bandwidth calculated according to the original image number. To a certain extent, the computational efficiency of the computer in the practical application of close-range rotation multi-baseline photography is improved. Reduces the adjustment operation to the computer memory consumption.
【作者单位】：武汉大学遥感信息工程学院;
【基金】：国家自然科学基金(41322010;41571434)~~
【分类号】：P207.2;P23
【正文快照】： 传统摄影测量中,摄影交会角大小的选择和影像匹配处于一个相互矛盾的局面。在一定范围内,交会角越大,深度量测精度越高,而越大的交会角会带来更大的影像变形和地物遮挡,给影像匹配造成困难,导致匹配正确率和可靠性降低,甚至是匹配失败。针对上述问题,[文献1]提出了一种新的理

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