4 August 2009 Detection algorithm for IR ship target in complex background of sea and sky
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In complex sea background, the ship target in the IR image often appears near the sea-sky region, and the sea-sky region is appeared as a horizontal or nearly horizontal block region, so the primary step of the IR target detection is to localize the sea-sky region. According to this characteristic of the target and background in the IR image, a detection algorithm for IR ship target detection in complex sea background is proposed in this paper. Firstly, the low frequency subimage and horizontal detail subimage is obtained by the multi-scale analysis of wavelet transform. Secondly, the gray projection and binary clustering segmentation method are combined to localize the sea-sky-line in the image, the target potential area, that is, sea-sky-region, is also determined. Finally, the multi-level filter method is adopted to detect the ship target in the sea-sky region. The experiment result show that this algorithm can effectively reduce the computational complexity, enhance the real-time execution and possess of high detection probability.
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Xiaoping Wang, Tianxu Zhang, Dengwei Wang, Wenjun Shi, "Detection algorithm for IR ship target in complex background of sea and sky", Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 738315 (4 August 2009); doi: 10.1117/12.835598; https://doi.org/10.1117/12.835598

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