23 September 2014 High accuracy image restoration method for seeing through water
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This paper presents an algorithm for recovering an image from a sequence of distorted versions of it, where the distortions are caused by a wavy water surface. A robust non-rigid image registration technique is employed to determine the pixel shift maps of all the frames in the sequence against a reference frame. An iterative image dewarping algorithm is applied to correct the geometric distortions of the sequence. A non-local means filter is used to mitigate noise and improve the signal-to-noise ratio (SNR). The performance of our proposed method is compared against the state-of-the-art method. Results show that our proposed method performs significantly better in removing geometric distortions of the underwater images.
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Kalyan K. Halder, Kalyan K. Halder, Murat Tahtali, Murat Tahtali, Sreenatha G. Anavatti, Sreenatha G. Anavatti, } "High accuracy image restoration method for seeing through water", Proc. SPIE 9217, Applications of Digital Image Processing XXXVII, 921702 (23 September 2014); doi: 10.1117/12.2061643; https://doi.org/10.1117/12.2061643

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