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- W2586118265 abstract "When a video sequence is compressed by the MPEG encoder with a low coding rate, various artifacts such as blocking artifacts are produced. To remove the artifacts, this paper proposes a video restoration approach with the 3-D redundant DCT, which utilizes spatiotemporal correlations of a moving image sequence more effectually than the 3-D orthogonal DCT. The approach recovers an image sequence by applying the shrinkage operation to 3-D DCT coefficients of the recovered sequence with the imposition of the MPEG-quantization constraint, an expansion of the JPEG-quantization constraint. Experimental simulations demonstrate that the approach successfully removes the compression artifacts selectively and improves subjective quality considerably." @default.
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- W2586118265 date "2016-11-01" @default.
- W2586118265 modified "2023-09-26" @default.
- W2586118265 title "3-D redundant DCT restoration method for MPEG-compressed video" @default.
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- W2586118265 doi "https://doi.org/10.1109/tencon.2016.7848612" @default.
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