CIPS空三加密技术与应用

Technology and Application of Aerial Triangulation based on the CIPS

数字摄影测量中获取高精度的数字产品主要取决于对原始影像的空三加密这道工序,这意味着空三加密的精度直接关系着后期数字线划图、数字正射影像等产品的质量。以某地区的DMC影像数据为例,在分析了CIPS系统的空三加密关键技术的基础上,采用CIPS空三解算的相关问题做了实验研究。对于其中质量较差的影像数据,在实验中采用了分组试验刺点的方法。对比试验得到的空三加密成果,找到了一项有效的处理方法既隔片刺同名点的方法。通过该处理方法可以得到符合期望的空三成果,达到数据生产精度的要求。

Using the digital photogrammetry, high precision digital products mainly depends on the original image aerial triangulation, which means that aerial triangulation accuracy is directly related to the quality of the latter part of the later digital line graph, the digital orthophoto map products. In this paper, we analyze the key technology of aerial triangulation in CIPS and taking a certain area of DMC image data as examples, we conduct an aerial triangulation experiment research based on the CIPS. For the image data of poor quality, grouping test prick method has been used in the experiments. Compared to the aerial triangulation results from the experiments,we have found an effective way, using the spacer stab the points. This way can obtain the expected aerial triangulation results and meet the data producting accuracy requirement.