A Fast Rough Mode Decision Algorithm for HEVC
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초록
HEVC is the high efficiency video coding standard, which provides better coding efficiency contrasted with theother video coding standard. But at the same time the computational complexity increases drastically. Thirtyfivekinds of intra-prediction modes are defined in HEVC, while 9 kinds of intra prediction modes are definedin H.264/AVC. This paper proposes a fast rough mode decision (RMD) algorithm which adopts the smoothnessof the up-reference pixels and the left-reference pixels to decrease the computational complexity. The three stepsearch method is implemented in RMD process. The experimental results compared with HM13.0 indicate thatthe proposed algorithm can save 39.7% of the encoding time, while Bjontegaard delta bitrate (BDBR) isincreased slightly by 1.35% and Bjontegaard delta peak signal-to-noise ratio (BDPSNR) loss is negligible.
Abstract
HEVC is the high efficiency video coding standard, which provides better coding efficiency contrasted with theother video coding standard. But at the same time the computational complexity increases drastically. Thirtyfivekinds of intra-prediction modes are defined in HEVC, while 9 kinds of intra prediction modes are definedin H.264/AVC. This paper proposes a fast rough mode decision (RMD) algorithm which adopts the smoothnessof the up-reference pixels and the left-reference pixels to decrease the computational complexity. The three stepsearch method is implemented in RMD process. The experimental results compared with HM13.0 indicate thatthe proposed algorithm can save 39.7% of the encoding time, while Bjontegaard delta bitrate (BDBR) isincreased slightly by 1.35% and Bjontegaard delta peak signal-to-noise ratio (BDPSNR) loss is negligible.
참고문헌 (18)
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