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Detail
Journal Article
Adaptive Scanning for H.264/AVC Intra Coding
- Authors
- Yung Lyul Lee, Ki Hun Han, Dong Gyu Sim, Jeong Il Seo
- Issue Date
- 2006-10
- Citation
- ETRI Journal, v.28, no.5, pp.668-671
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- In this letter, an adaptive scanning that improves intra coding efficiency in the H.264/AVC standard is proposed. The proposed adaptive scanning utilizes the prediction directions (modes) that include the horizontal and vertical edge information in a block Depending on the prediction directions, the proposed method uses three scanning methods: zigzag scanning, horizontal scanning, and vertical scanning. In the proposed method, horizontal and vertical scanning are used in vertical and horizontal prediction modes, respectively, and the normal zigzag scanning in the H.264 standard is used in all other intra prediction modes. The proposed method reduces the bit rate by approximately 2.5% compared with H.264/AVC, without the degradation of video quality.
- KSP Keywords
- Bit Rate, Coding efficiency, Edge information, Intra Coding, Scanning method, Vertical edge, Video quality, Zigzag Scanning, adaptive scanning, intra prediction mode