Infrared small target detection method based on local threshold attenuation of constant false alarm

Ke-feng Yu; Zhi-guang Shi; Xin-ping Lu

doi:10.1117/12.2266222

8 March 2017 Infrared small target detection method based on local threshold attenuation of constant false alarm

Ke-feng Yu, Zhi-guang Shi, Xin-ping Lu

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 1025532 (2017) https://doi.org/10.1117/12.2266222
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

In the infrared small target detection system, CFAR (Constant False Alarm Rate) is a commonly used technology, but in the traditional single frame detection method, detection rate is requested to be improved while the false alarm rate is increasing. This paper proposes a threshold attenuation CFAR detection method based on Gauss distribution. After the preprocessing of infrared images, we came into the designing of CFAR detector based on Gauss distribution. According to the previous frame target location and attenuation of local threshold, the detection rate of the target neighbourhood can be improved to obtain the current target location. The experimental results show that the proposed method can effectively control the threshold, and under the precondition that the background clutter was suppressed by the global low false alarm rate, it can improve the local detection rate and reduce the probability of target loss.

Citation Download Citation

Ke-feng Yu, Zhi-guang Shi, and Xin-ping Lu "Infrared small target detection method based on local threshold attenuation of constant false alarm", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 1025532 (8 March 2017); https://doi.org/10.1117/12.2266222

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