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A Fast Inter Mode Decision Algorithm Considering Quantization Parameter in H.264  

Kim, Geun-Yong (Gwangju Institute of Science and Technology, Department of Information and Communications)
Ho, Yo-Sung (Gwangju Institute of Science and Technology, Department of Information and Communications)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.43, no.6, 2006 , pp. 11-19 More about this Journal
Abstract
The recent video coding standard H.264 employs the rate-distortion optimization (RDO) method for choosing the best coding mode; however, it causes a large amount of encoding time. Thus, in order to reduce the encoding time, we need a fast mode decision algorithm. In this paper, we propose a fast inter mode decision algorithm considering quantization parameter (QP). The occurrence of best modes depends on QP. In order to reflect these characteristics, we consider the coded block pattern (CBP) which has 0 value when all quantized discrete cosine transform (DCT) coefficients are zero. We also use the early SKIP mode decision and early $16{\times}16$ mode decision methods. By computer simulations, we have verified that the proposed algorithm requires less encoding time than the fast inter mode decision method of the H.264 reference software for the Baseline and Main profiles by 19.6% and 18.8%, respectively.
Keywords
Fast Inter Mode Decision; Quantization Parameter; H.264;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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