Earth elevation map production and high resolution sensing camera imaging analysis

Xiubin Yang; Guang Jin; Li Jiang; Lu Dai; Kai Xu

doi:10.1117/12.867766

9 November 2010 Earth elevation map production and high resolution sensing camera imaging analysis

Xiubin Yang, Guang Jin, Li Jiang, Lu Dai, Kai Xu

Proceedings Volume 7850, Optoelectronic Imaging and Multimedia Technology; 785013 (2010) https://doi.org/10.1117/12.867766
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

The Earth's digital elevation which impacts space camera imaging has prepared and imaging has analysed. Based on matching error that TDI CCD integral series request of the speed of image motion, statistical experimental methods-Monte Carlo method is used to calculate the distribution histogram of Earth's elevation in image motion compensated model which includes satellite attitude changes, orbital angular rate changes, latitude, longitude and the orbital inclination changes. And then, elevation information of the earth's surface from SRTM is read. Earth elevation map which produced for aerospace electronic cameras is compressed and spliced. It can get elevation data from flash according to the shooting point of latitude and longitude. If elevation data between two data, the ways of searching data uses linear interpolation. Linear interpolation can better meet the rugged mountains and hills changing requests. At last, the deviant framework and camera controller are used to test the character of deviant angle errors, TDI CCD camera simulation system with the material point corresponding to imaging point model is used to analyze the imaging's MTF and mutual correlation similarity measure, simulation system use adding cumulation which TDI CCD imaging exceeded the corresponding pixel horizontal and vertical offset to simulate camera imaging when stability of satellite attitude changes. This process is practicality. It can effectively control the camera memory space, and meet a very good precision TDI CCD camera in the request matches the speed of image motion and imaging.

Citation Download Citation

Xiubin Yang, Guang Jin, Li Jiang, Lu Dai, and Kai Xu "Earth elevation map production and high resolution sensing camera imaging analysis", Proc. SPIE 7850, Optoelectronic Imaging and Multimedia Technology, 785013 (9 November 2010); https://doi.org/10.1117/12.867766

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KEYWORDS

Cameras

CCD cameras

Error analysis

Imaging systems

Device simulation

Motion models

Charge-coupled devices

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