NDLI: An Efficient and Fast Block Size Decision Exploiting Boundary Information on Inner Block for H.264/AVC Intra Prediction

Content Provider	IEEE Xplore Digital Library
Author	Sungmin Kim Takgi Lee Kidong Chung
Copyright Year	2008
Description	Author affiliation: Kidong Chung Dept. of Comput. Eng., Pusan Nat. Univ, Pusan (Sungmin Kim; Takgi Lee; Kidong Chung)
Abstract	H.264/AVC, the newest video coding standard, offers an intra prediction with various block sizes and various prediction modes for luma component and chroma component. Due to this new feature, H.264/AVC offers a considerably higher improvement in coding efficiency compared to other compression standards such as MPEG-2, MPEG-4, H.263. However, the computational complexity of H.264/AVC is drastically increased because of the various modes. In this paper, we propose an efficient and fast algorithm to decide block size between 1616 block and 44 block for the computational complexity reduction in the intra prediction of H.264/AVC. The proposed algorithm uses boundary difference values of sub- block, which has 88 size, in a macroblock for intra prediction. The boundary differences of inner center block represent the moving patterns of macroblock. Thus, if the value of the differences is smaller than threshold value, this macroblock is selected by 1616 intra prediction mode. Otherwise, this is selected by 44 intra prediction mode. The boundary pixel values' differences of the inner center 88 block in 16*16 macroblock are correlated to the smoothness of macroblock. The experimental results show that the proposed algorithm saved on the average 22.9% encoding time without any significant PSNR losses.
Starting Page	101
Ending Page	104
File Size	280819
Page Count	4
File Format	PDF
ISBN	9781424422968
DOI	10.1109/SSIAI.2008.4512295
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic voltage control
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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