该方法通过判断图像局部灰度包络曲面是否具备二维高斯函数曲面特征实现红外弱小目标检测，不需要进行传统的背景预测。

Instead of traditional background prediction, this method detects infrared small and dim target by judging whether the local grey level surface possesses the two dimension Gauss function feature.

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结果表明，空间压强分布可以用一个二维高斯概率函数的曲面方程来表达。

The sinplified space formula of the intensity distribution of pressure is developed, and the result ha shown that the equation is a two-dimensional Gauss' normal distribution equation.

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