Algorithm of infrared image enhancement for detecting far target at sea

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Journal of Dalian Maritime University ›› 2015, Vol. 41 ›› Issue (4) : 102-107.

YANG Xue-feng，ZHANG Ying-jun*，LIU Wen, LI Yuan-kui

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Abstract

In order to improve the visual effect of the infrared image at sea and the efficiency of far target detection, a “Cross-Shaped” Gauss band pass filter algorithm was proposed and verified based on analyzing the spatialdomain and frequencydomain characteristic of infrared image at sea. Experiment results show that the “CrossShaped” Gauss band pass filter algorithm can decrease the sea noise, enhance the brightness and detail information of infrared image at sea, and then improve the visual effect.

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infrared image at sea / image enhancement / Fourier transformation / band-pass filter

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YANG Xue-feng，ZHANG Ying-jun，LIU Wen, LI Yuan-kui. Algorithm of infrared image enhancement for detecting far target at sea[J]. Journal of Dalian Maritime University. 2015, 41(4): 102-107

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