Research on geometric rectification of the Large FOV Linear Array Whiskbroom Image

Dia Liu; Hui-tong Liu; Hao Dong; Xiao-bo Liu

doi:10.1117/12.2204876

6 August 2015 Research on geometric rectification of the Large FOV Linear Array Whiskbroom Image

Dia Liu, Hui-tong Liu, Hao Dong, Xiao-bo Liu

Proceedings Volume 9669, Remote Sensing of the Environment: 19th National Symposium on Remote Sensing of China; 96690F (2015) https://doi.org/10.1117/12.2204876
Event: Remote Sensing of the Environment: 19th National Symposium on Remote Sensing of China, 2014, Xian City, China

Abstract

To solve the geometric distortion problem of large FOV linear array whiskbroom image, a model of multi center central projection collinearity equation was founded considering its whiskbroom and linear CCD imaging feature, and the principle of distortion was analyzed. Based on the rectification method with POS, we introduced the angular position sensor data of the servo system, and restored the geometric imaging process exactly. An indirect rectification scheme aiming at linear array imaging with best scanline searching method was adopted, matrixes for calculating the exterior orientation elements was redesigned. We improved two iterative algorithms for this device, and did comparison and analysis. The rectification for the images of airborne imaging experiment showed ideal effect.

Citation Download Citation

Dia Liu, Hui-tong Liu, Hao Dong, and Xiao-bo Liu "Research on geometric rectification of the Large FOV Linear Array Whiskbroom Image", Proc. SPIE 9669, Remote Sensing of the Environment: 19th National Symposium on Remote Sensing of China, 96690F (6 August 2015); https://doi.org/10.1117/12.2204876

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KEYWORDS

Image processing

Imaging systems

Distortion

Imaging devices

Imaging arrays

Servomechanisms

Charge-coupled devices

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