Adaptive Scanning for H.264/AVC Intra Coding

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, th...

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Bibliographic Details
Published inETRI journal Vol. 28; no. 5; pp. 668 - 671
Main Authors Lee, Yung-Lyul, Han, Ki-Hun, Sim, Dong-Gyu, Seo, Jeong-Il
Format Journal Article
LanguageKorean
Published 한국전자통신연구원 05.02.2006
ETRI
Subjects
Video coding
prediction
intra coding
H/264
scanning
AVC
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Summary: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.
Bibliography:KISTI1.1003/JNL.JAKO200671242945502
ISSN:1225-6463
2233-7326