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

Abstract

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.

Lithologic classification using multilevel spectral characteristics

“…It is a typical karst landform with karst rocky desertification area constituting ∼16.0% of the total karst rocky desertification area in China. 23,24 The strata in the study area are well-developed and the outcrop area is large. The three main types of rocks in the study area are sedimentary, magmatite, and marble rocks.…”

Fpga-Based on-Board Cubic Convolution Interpolation for Spaceborne Georeferencing

“…The paper focuses on the interpolation of the spaceborne georeferencing. For the details of other modules, it can be referenced to Zhou et al (Zhou, 2010;Liu, 2019;Zhou, 2016). The rest of work is organized as follow: Section 2 overviews the previously relevant work.…”

Extraction of Rocky Desertification From Disp Imagery: A Case Study of Liupanshui, Guizhou, China

“…The mosaicing process is shown in Figure 6,7,8： Due to the CORONA series of images used in this paper come from a different time, seamline and intensity cannot be eliminated. To eliminate the difference, this paper use a histogram equalization method to radiometric balancing (Zhou, 2016).The radiometric balancing process is shown in Figure 9,10： Figure 9. Image mosaic without radiometric balancing.…”

“…Declassified intelligence satellite photographs (DISP) is the first generation of photographic reconnaissance satellites between 1960and 1972(Zhou, 2016. The systems include CORONA, ARGON and LANYARD.…”