The System Correction of Digital Image by CCD Camera of Whisk Broom Model in Middle-high Space
WANG Junhua， PANG Yijie， WANG Jing et al

1 中国科学院遥感应用研究所，北京 100101；  2 空军第六研究所，北京 100085)

Abstract

With the development of digital camera technology, the film-oriented airborne remote sensing platform is developing toward digital imaging platform. With the application of the latest aerial digital camera with CCD as its core in China，we analyse the imaging process, imaging model, geometrical distortion and its computing of digital image by CCD camera of whisk broom model in the middle-high space. According to the research of the imaging model of slantwise central projection, we bring forward the system correction method which is based on the imaging model of slantwise central projection in column with the flight displacement, correct the image geometrical distortion which is resulted from the installing obliquity and the flight displacement, and then test the necessity and the validity of the system correction by verifying the image mosaics.
Keywords:  CCD camera; whisk broom; system correction; mosaic