A detection method of infrared dim small target under complex cloud background

Ruo-wang Chen; Chun-sheng Hu; Wei-feng Liu; Jian-kang Shi

doi:10.1117/12.2179509

13 April 2015 A detection method of infrared dim small target under complex cloud background

Ruo-wang Chen, Chun-sheng Hu, Wei-feng Liu, Jian-kang Shi

Proceedings Volume 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II; 95220W (2015) https://doi.org/10.1117/12.2179509
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

Abstract

Based on the analysis of the characteristics of infrared dim small target under complex cloud background, A detection algorithm is proposed for infrared dim small target. Firstly, median filtering algorithm is employed to remove the noise effectively. Secondly, according to the characteristics of the cloud background and targets, a frequency-domain processing method based on Fourier transform and second-order Butterworth high pass filtering is proposed. The cutoff frequency of the filter is adaptively decided by establishing the relationship between the background complexity and the cutoff frequency. Lastly, target detection is achieved by threshold segmentation. Experiments showed that the algorithm can effectively detect infrared dim small target under complex cloud background.

Citation Download Citation

Ruo-wang Chen, Chun-sheng Hu, Wei-feng Liu, and Jian-kang Shi "A detection method of infrared dim small target under complex cloud background", Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 95220W (13 April 2015); https://doi.org/10.1117/12.2179509

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