Time-space noise processing technique for low light level (LLL) image

Abstract

Taking the LLL CCD TV system as the object of study, on the basis of analysing a LLL image and its noise characteristics in detail, the noise theoretical model of a LLL image is described in a unified fashion by the time and space domain stochastic process. The LLL image processing system is developed. With the direction of this theoretical model, two types of new LLL image noise processing techniques, the interframe comparison denoise method and the adaptive mode filter are put forward and taken to suppress the LLL image time-space domain noise. Finally, test and analysis evaluation on the original and processed images are carried out.