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An Efficient Mode Decision and Search Region Restriction for Fast Encoding of H.264/AVC  

Chun, Sung-Hwan (부산대학교 컴퓨터공학과)
Shin, Kwang-Mu (부산대학교 컴퓨터공학과)
Kang, Jin-Mi (부산대학교 컴퓨터공학과)
Chung, Ki-Dong (부산대학교 컴퓨터공학과)
Publication Information
Abstract
In this paper, we propose an efficient inter and intra prediction algorithms for fast encoding of H.264/AVC. First, inter prediction mode decision method decides early using temporal/spatial correlation information and pixel direction information. Second, intra prediction mode decision method selects block size judging smoothness degree with inner/outer pixel value variation and decides prediction mode using representative pixel and reference pixel. Lastly, adaptive motion search region restriction sets search region using mode information of neighboring block and predicted motion vector. The experimental results show that proposed method can achieve about 18~53% reduction compared with the existing JM 14.1 in the encoding time. In RD performance, the proposed method does not cause significant PSNR value losses while increasing bitrates slightly.
Keywords
H.264/AVC; Inter Prediction Mode Decision; Intra Prediction Mode Decision; Motion Search Region Restriction;
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Times Cited By KSCI : 3  (Citation Analysis)
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