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http://dx.doi.org/10.5762/KAIS.2012.13.4.1830

Enhanced Mode Estimation Method for Intra/Inter Prediction in H.264/AVC  

Park, Kyung-Seok (Dept. of Information and Communication Engineering, Kyungpook National University)
Kim, Min-Jun (Dept. of Electrical Engineering and Computer Science, Kyungpook National University)
Jun, Jae-Hyun (Dept. of Electrical Engineering and Computer Science, Kyungpook National University)
Ryu, Sang-Ryul (Dept. of Computer Science, Chungwoon University)
Kim, Snng-Ho (Dept. of Computer Science and Engineering, Kyungpook National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.4, 2012 , pp. 1830-1838 More about this Journal
Abstract
The intra prediction and the motion estimation of inter prediction occupy 70 ~ 80% of whole compression time in H.264/AVC. Compression efficiency has been higher, but complexity has increased and coding time has also increased much more. This paper proposes a block size decision method of the intra prediction and mode decision method which minimize the loss of video quality during the encoding and shorten the time spent. This paper, in addition, proposes an algorithm which determines the method of adaptive block mode for motion estimation of inter prediction. We investigated PSNR and the intra prediction and inter prediction of time-consuming calculations in order to measure video quality degradation and complexity through experiments. Consequently, when you use all three methods, these methods showed that average coding time is shortened as about 500 to 600ms in every frame in the case of all experimented videos, keeping video quality nearly similar, compared with existing methods of H.264.
Keywords
H.264/AVC; Intra prediction; Inter prediction; Block mode decision; PSNR; Complexity;
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