Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:T2-6
Session:
Number:4904
Upper Coding Unit Depth Rate Distortion Cost Comparison Based Fast Intra and Interlayer Inter Prediction Mode Selection for Enhancement Layer in All Intra Spatial SHVC
Pei Liu, Guojing Zhu, Gaoxing Chen, Takeshi Ikenaga ,
pp.583-586
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
SHVC is the scalability extension of the video compression standard high efficiency video coding (HEVC). It encodes the video in different layers, called base layer (BL) and enhancement layer (EL). The additional interlayer inter prediction (ILIP) mode employed in EL increases the complexity. This paper proposes a fast mode selection method for EL in all intra spatial SHVC. The rate distortion cost (RD-cost) difference between intra prediction and ILIP in upper coding unit (CU) depth is calculated as a prejudgment condition to select the prediction mode in lower CU depth. The proposed method can achieve 52.65% and 58.00% encoding time saving for 1.5x and 2x sequences respectively with negligible BD-rate increase compared with SHM-8.0. Compared with related work, this paper can get over 30% time saving increase on average.