提出一种新的数据处理方法——子区中位数衬值滤波法。

This paper advances a new data - processing technique - subregion median contrast filtering method.

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子区中位数衬值滤波方法解决了低背景区和高背景区弱小异常的识别问题，克服了采用全区统一异常下限给异常识别带来的困难。

The Subinterval area median contrast filtering method that can recognize weak anomalies of the low-background area and high-background area resolves the problem.

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