基于图像的逼近结果描述像素关联性，并基于关联性破坏程度对噪声进行类型分析，对不同类型的噪声采取确定性的抑制算法。
The result of regression is used to describe the relationship between pixels and the one in its neighborhood. Based on the relationship, the noise was classified to different kinds and suppressed.
分析了云层背景下目标和云层在探测器上的时间响应特性，建立了四种类型的像素点时域模型。
Target and cloud's temporal profiles on detector are studied, and four temporal models are built.
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