Second-Order Polynomial Equation-Based Block Adjustment for Orthorectification of DISP Imagery

作者：Zhou, Guoqing^*; Yue, Tao^*; Shi, Yujun; Zhang, Rongting; Huang, Jingjin

来源：Remote Sensing, 2016, 8(8): 680.

DOI：10.3390/rs8080680

• declassified intelligence satellite photography (DISP)
• rectification
• imagery distortion
• second polynomial equation

Due to the lack of ground control points (GCPs) and parameters of satellite orbits, as well as the interior and exterior orientation parameters of cameras in historical declassified intelligence satellite photography (DISP) imagery, a second order polynomial equation-based block adjustment model is proposed for orthorectification of DISP imagery. With the proposed model, 355 DISP images from four missions and five orbits are orthorectified, with an approximate accuracy of 2.0-3.0 m. The 355 orthorectified images are assembled into a seamless, full-coverage mosaic image map of the karst area of Guangxi, China. The accuracy of the mosaicked image map is within 2.0-4.0 m when compared to 78 checkpoints measured by Real-Time Kinematic (RTK) GPS surveys. The assembled image map will be delivered to the Guangxi Geological Library and released to the public domain and the research community.

• 出版日期2016-8
• 单位桂林理工大学; 天津大学