The research on distortion measurement and compensation technology in photoelectricity measurement system

The distortion made by optical lens largely affect the measurement accuracy of the large field of view photoelectricity measurement system, according to the theory of aberration in the photoelectricity system, this paper design a series of distortion measurement devices, in connection with the process of distortion correction in photoelectricity system, establish the related mathmatics model, make the real time distortion correction by the method of software compensation. The experimental results demonstrate the method decrease the measurement error made by the photoelectricity system distortion, after the compensation, in tatal field of view, the systematic measurement error is less than 0.5 picture element.