A fast intra mode decision algorithm using sub-sampled pixels
- Authors
- Kim, Youngjoon; Kim, Wonkyun; Jeong, Jechang
- Issue Date
- Aug-2011
- Publisher
- IEEE
- Citation
- Proceedings of the International Symposium on Consumer Electronics, ISCE, pp.290 - 293
- Indexed
- SCOPUS
- Journal Title
- Proceedings of the International Symposium on Consumer Electronics, ISCE
- Start Page
- 290
- End Page
- 293
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/167926
- DOI
- 10.1109/ISCE.2011.5973834
- ISSN
- 0000-0000
- Abstract
- Intra prediction is a significant technique in H.264/AVC reference software. However, it has heavy computational complexity. In order to solve this problem, many fast algorithms have been proposed. In this paper, we propose a fast intra mode decision algorithm which predicts the edge direction of the current block using sub-sampled pixels to reduce high computational complexity of the H.264/AVC encoder. The proposed algorithm shows that it not only improves the coding performance but also reduces the computational complexity of the H.264/AVC encoder. The experimental results show that the proposed algorithm achieves the encoding time reduction of 75.74% on an average with slight peak signal-to-noise ratio (PSNR) drop and bit-rate increment.
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