This paper investigates the approach to estimate the maximum detection range of an infrared point_target against sky background based on the minimum resolved contrast(MRC)criteria.

基于最小分辨对比度准则，研究了天空背景下红外点目标的最大探测距离估计方法。

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In order to solve the problem of detecting moving small targets in low-contrast infrared image sequences, a new detection method based on multilevel filter is proposed.

为了解决低对比度红外序列图像中运动小目标的检测问题，提出了一种基于多级滤波的检测方法。

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