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Post-Processing Technique Based on POCS for Visual Enhancement in HDTV Images
Overview This paper proposes a postprocessing technique based on the theory of projection on convex sets (POCS) to reduce the blocking artifacts in HDTV decoded images. In BDCT of HDTV, the image is divided into a grid of non-overlapped 8 x 8 blocks, and then each block is coded separately. A block, which is located one pixel apart from the grid of BDCT, will include the boundary of the original 8 x 8 block. If the blocking artifact is introduced along the block boundary, this block will have different frequency characteristic from that of the original block.
| Publisher | Korea University | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | August 2001 | Downloads | 13 |
| Format | White Papers | ||
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