Research on geometric correction method for infrared scanning camera of HJ-1B small satellite

Li Fang; Qiang Liu; Qinhuo Liu; Ding Li; Sihan Liu

doi:10.1117/12.750204

14 November 2007 Research on geometric correction method for infrared scanning camera of HJ-1B small satellite

Li Fang, Qiang Liu, Qinhuo Liu, Ding Li, Sihan Liu

Proceedings Volume 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications; 679026 (2007) https://doi.org/10.1117/12.750204
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

Abstract

HJ-1B small satellite, which has two CCD cameras and an infrared scanning camera, is scheduled to be launched in the end of this year. The infrared scanning camera is a whiskbroom scanner with four spectral bands. In order to guarantee the quality of data products from the infrared scanning camera, accurate geo-location and precise geometric rectification are required. A geo-location algorithm for infrared scanning camera in HJ-1B is proposed in this paper based on pixel navigation and image matching. The algorithm is composed of three steps. The first step is pixel navigation based on the principles of photogrammetry using the parameters of satellite ephemeris and attitude information. The second step is to simulate HJ-1B satellite image with an existing remote sensing image, which is accurately georectified and of higher spatial resolution than HJ-1B image. The HJ-1B image is then matched to the simulated image using least squares matching method to find the accurate location of each HJ-1B image pixel. After geo-location, the image can be geo-rectified according to the location of each pixel. In our preliminary test with simulated image, the geometric correction method is proved feasible in principle as well as in practice.

Citation Download Citation

Li Fang, Qiang Liu, Qinhuo Liu, Ding Li, and Sihan Liu "Research on geometric correction method for infrared scanning camera of HJ-1B small satellite", Proc. SPIE 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications, 679026 (14 November 2007); https://doi.org/10.1117/12.750204

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