Abstract
During compression artifact reduction process, original information as well as noise has been commonly removed, and this side effect should be importantly considered. In this paper, we propose a novel post-processing approach to alleviate the side effect of noise reduction while still reducing compression artifacts successfully. After compression artifact removal using conventional methods, we examine whether the denoised region is actually noisy or not, exploiting the relationship between noisy image and artifact reduced image. Then, the probability of a pixel to be noisy is calculated based on the noise region estimation, and a final denoised pixel is obtained by a weighted average between noisy and denoised signals with the probability. Experimental results show that the proposed method is more effective in preserving texture region while still reducing the compression noise.
Original language | English |
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Title of host publication | 2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 784-788 |
Number of pages | 5 |
ISBN (Electronic) | 9789881476807 |
DOIs | |
Publication status | Published - 2016 Feb 19 |
Event | 2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015 - Hong Kong, Hong Kong Duration: 2015 Dec 16 → 2015 Dec 19 |
Other
Other | 2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015 |
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Country/Territory | Hong Kong |
City | Hong Kong |
Period | 15/12/16 → 15/12/19 |
Keywords
- Compression Artifact Reduction
- Noise Region Estimation
- Probabilistic Noise Removal
- Self-Similarity
ASJC Scopus subject areas
- Artificial Intelligence
- Modelling and Simulation
- Signal Processing