Hardware Oriented Low-Complexity Intra Coding Algorithm for SHVC

Takafumi KATAYAMA  Tian SONG  Wen SHI  Gen FUJITA  Xiantao JIANG  Takashi SHIMAMOTO  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E100-A   No.12   pp.2936-2947
Publication Date: 2017/12/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E100.A.2936
Type of Manuscript: PAPER
Category: Digital Signal Processing
Keyword: 
high efficiency video coding (HEVC),  scalable high efficiency video coding (SHVC),  inter layer reference prediction,  intra prediction,  

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Summary: 
Scalable high efficiency video coding (SHVC) can provide variable video quality according to terminal devices. However, the computational complexity of SHVC is increased by introducing new techniques based on high efficiency video coding (HEVC). In this paper, a hardware oriented low complexity algorithm is proposed. The hardware oriented proposals have two key points. Firstly, the coding unit depth is determined by analyzing the boundary correlation between coding units before encoding process starts. Secondly, the redundant calculation of R-D optimization is reduced by adaptively using the information of the neighboring coding units and the co-located units in the base layer. The simulation results show that the proposed algorithm can achieve over 62% computation complexity reduction compared to the original SHM11.0. Compared with other related work, over 11% time saving have been achieved without PSNR loss. Furthermore, the proposed algorithm is hardware friendly which can be implemented in a small area.