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Coding Artifact Reduction for Block-based Image Compression
- Author(s)
- Tewodros Nega Mulatu
- Department
- 일반대학원 컴퓨터공학과
- Publisher
- The Graduate School, Ajou University
- Publication Year
- 2012-02
- Language
- eng
- Alternative Abstract
- In this thesis, we propose a new post-processing technique that removes blocking and ringing artifacts in Block discrete cosine transformation (BDCT)-coded images using bilateral filtering. The selection of filter parameters is a key issue in the application of a bilateral filter because it significantly affects the result. An efficient method of selecting the bilateral filter parameters is presented. In addition, a signal adaptive filter is applied to improve the visual quality. The experimental results show that the proposed approach alleviates the artifacts efficiently in terms of PSNR, MSDS, and SSIM.
- Fulltext
- Appears in Collections:
- Special Graduate Schools > Graduate School of Education > Computer Education > 3. Theses(Master)
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