Ir Noise And Light Level Image Processing And Hardware

With the development of science and technology and also the requirements of national defense, it is in great need of developing the advanced night vision technique, of which the noise-suppressing of infrared and LLL image is the crucial part. It is very important to design practical and real-time processing hardware systems, which can be applied to both infrared and LLL images.In this paper, we base on the analysis of characteristics of infrared and LLL image, make a study on the noise performance of them, and fulfill the non-uniformity correction of IFPA and develop the modularizing system for blind pixel compensation, as well as for LLL image noise-suppressing. While designing the whole system, DSP and FPGA are adopted to perform different image noise-suppressing algorithms in the hardware circuit flexibly, which made it impossible to realize a real-time, miniaturizing and modularizing system successfully. In the meantime, the experiences in the course of designing and debugging are summarized, and some problems are discussed in detail.