Joint block adjustment for ATLAS data and ZY3-02 stereo imagery

被引：0

作者：

Zhang X. ^{[1
]}

Xing S. ^{[1
]}

Xu Q. ^{[1
]}

Zhang G. ^{[1
]}

Li P. ^{[1
]}

Jiao L. ^{[1
]}

Liu C. ^{[1
]}

机构：

[1] School of Surveying and Mapping, PLA Strategic Support Force Information Engineering University, Zhengzhou

来源：

Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2020年 / 49卷

关键词：

ATLAS; ICESat-2; Joint block adjustment; Laser altimetry; ZY3-02;

D O I：

10.3788/IRLA20200194

中图分类号：

学科分类号：

摘要：

ICESat -2 is the first photon -counting lidar altimeter satellite in the world. Its ATLAS can obtain high-precision laser foot points covering the world, which helps to improve the positional accuracy of stereo satellite images without ground control points (GCPs). A joint block adjustment method for spaceborne laser altimetry data and stereo satellite images was designed and implemented. First, a multicondition filter was proposed to select high-precision ATLAS laser altimetry points, and then the selected ATLAS laser altimetry points were used as control points with error for joint adjustment calculations, so that the satellite images orientation parameters were optimized. Experimental results on the ZY3 -02 satellite images and ATLAS ATL03 data of Zhengzhou prove that the proposed method can respectively improve the vertical accuracy and the plane accuracy of stereo satellite images by 60.6% and 56.4%. The experiments discussed above demonstrate that the proposed method can effectively improve the positional accuracy of stereo satellite image without GCPs. © 2020, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.

引用

共 15 条

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