检测红外弱小目标的对比滤波时域廓线算法

doi:10.3969/j.issn.1001-2400.2014.01.003

Abstract

Abstract:

The detection performance of the traditional temporal profile algorithm deteriolates when the dim small target has a velocity correspmding to equivalent that of cloud edge clutters. This paper proposes a temporal profile algorithm based on comparison filtering as a responding method to the fake-alarm occurrence existing in the traditional detection algorithm. Based on the analysis of the time domain characteristics of the dim small target, cloud edge clutters as well as the stationary background, the characteristic of the temporal profile is adopted to restrain the stationary background, and then the spatial domain comparison filter is structured based on the fact that the pixels of the cloud edge clutters are continuous in spatial domain while the pixels of the dim small target are discrete, and the images after removal of the static background are filtered by the comparison filter; lastly, the connecting line of the stagnation points (CLSP) based filtering is used to realize the detection of the dim small target. Simulation data show that this algorithm can significantly eliminate the fake-alarm caused by the cloud edge clutters with an equivalent velocity of the target, thus further improving the detection probability of the dim small target.

Key words: dim small target, detection, comparison filtering, temporal profile

DONG Weike;ZHANG Jianqi;SHAO Xiaopeng;LIU Delian. Temporal profile algorithm based on comparison filtering for detection of the infrared dim small target[J].J4, 2014, 41(1): 13-17.

References

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Temporal profile algorithm based on comparison filtering for detection of the infrared dim small target

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