16 December 2013 Three-dimensional dictionary-based deblocking for high-quality stereoscopic view generation
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Abstract
Image quality and depth perception rates in three-dimensional television (3-D TV) are undesirably decreased by coding due to the loss of high-frequency components caused by a block-based discrete cosine transform transform. Representative coding artifacts are blocking artifacts that seriously degrade the picture quality and depth perception rates. We propose a new blocking artifact reduction method in 3-D TV using an overcomplete 3-D dictionary. We first generate the overcomplete 3-D dictionary from natural and depth images using the k-singular value decomposition algorithm. Then, we perform deblocking using the 3-D dictionary after estimating an error threshold of the objective function by the third-order polynomial fitting. Experimental results demonstrate that the proposed method can effectively reduce annoying blocking artifacts in compressed 3-D images, i.e., video-plus-depth, and generate high-quality 3-D stereoscopic views.
© 2013 SPIE and IS&T
Cheolkon Jung, Cheolkon Jung, Hongtao Qi, Hongtao Qi, Zengzeng Sun, Zengzeng Sun, Licheng Jiao, Licheng Jiao, } "Three-dimensional dictionary-based deblocking for high-quality stereoscopic view generation," Journal of Electronic Imaging 22(4), 043023 (16 December 2013). https://doi.org/10.1117/1.JEI.22.4.043023 . Submission:
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