| Title: | Selective Deblocking Method Using a Transform Table of Different Dimension DCT |
| Authors: | Lim, Taehwan Ryu, Jiman Jeong, Jechang |
| Citation: | WSCG '2009: Full Papers Proceedings: The 17th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision in co-operation with EUROGRAPHICS: University of West Bohemia Plzen, Czech Republic, February 2 - 5, 2009, p. 43-48. |
| Issue Date: | 2009 |
| Publisher: | Václav Skala - UNION Agency |
| Document type: | konferenční příspěvek conferenceObject |
| URI: | http://wscg.zcu.cz/WSCG2009/Papers_2009/!_WSCG2009_Full_final.zip http://hdl.handle.net/11025/10886 |
| ISBN: | 978-80-86943-93-0 |
| Keywords: | blokující artefakty;post-zpracování;diskrétní kosinová transformace;transformační tabulka |
| Keywords in different language: | blocking artifacts;post-processing;discrete cosine transform;transform table |
| Abstract: | In this paper, we propose a selective deblocking algorithm that reduces block discontinuities in DCT domain. Our algorithm applies a deblocking procedure to each line of adjacent 3 blocks, so the block is divided into several line vectors. There are three Low Pass filters that are applied differently to 1×24 DCT values according to each condition of adjacent 3 vectors for conserving image details, and we use a transform table between different dimension DCTs (1×8 and 1×24 DCT) for reducing a computational cost. The experimental results show that the proposed algorithm makes good results on an improvement of subjective image quality and a computational efficiency. |
| Rights: | © Václav Skala - UNION Agency |
| Appears in Collections: | WSCG '2009: Full Papers Proceedings |
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