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1 November 2011 Model-based restoration and reconstruction for underwater range-gated imaging
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In order to improve underwater range-gated imagery quality, image restoration and super-resolution reconstruction techniques based on maximum a posteriori framework are combined with the point spread function (PSF) of the system. A model based on beam propagation considering time-dependent backscatter is established including the extreme attenuation properties of water and the diffraction limit of sensor for obtaining the PSF. The proposed method is applied for an underwater range-gated imaging system. Performance of the approach is compared with the traditional restoration and reconstruction algorithms. Objective image quality metrics are used to quantify the effectiveness of the restoration and reconstruction. Experimental results showed that the proposed method can effectively improve the resolution and quality of underwater range-gated imaging.
©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yuzhang Chen, Wei Li, Min Xia, and Kecheng Yang "Model-based restoration and reconstruction for underwater range-gated imaging," Optical Engineering 50(11), 113203 (1 November 2011).
Published: 1 November 2011

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