微光图象时空噪声处理理论与技术研究

该文以研制出的微光ＣＣＤ电视系统为实验研究对象，在系统研究了微光图象特征及其噪声特性的基础上，建立了同时考虑时间域噪声与空间域噪声的微光图象噪声理论模型。研制了微光图象处理实验系统，在理论模型的指导下，提出并发展了时间域帧间比较去噪法和空间自适应众值滤波法这２种新型的微光图象噪声处理技术，并对微光图象进行了时空域组合噪声抑制处理。文末对处理前后图象进行了测试与分析评价。

Theory and Experiment Study on Time space Noise Processing of Low Light Level (LLL) Image

In this paper,taking the LLL CCD TV system which research laboratory deve loped as the object of study,on the basis of analysing LLL image and its noise characteristics in detail,the noise theoretical model of LLL image is described Eimultaneouly 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-interframe comparison denoise process and adaptive mode filter are put forward and taken to suppress the LLL image time space domain noise.In the end,the test and analysis evaluation on the original and processed images are carried out.