计算机工程与应用Issue(19)：136-142,7.DOI:10.3778/j.issn.1002-8331.1310-0077
基于SSE2对H.265/HEVC中分像素插值的优化
Optimization implementation of fractional pixel interpolation in H.265/HEVC by SSE2
摘要
Abstract
Sub-pixel interpolation algorithm is a key technology in video coding algorithm, which has important influence on video coding performance. In the latest video coding standard H.265/HEVC, interpolation filters based on DCT are used to interpolate half pixel and quarter pixel, but it has very high computation complexity, especially for high definition and ultra-high resolution video coding applications. This paper introduces the background of DCT-based interpolation filters in detail, and then optimizes its implementation by SSE2 instruction set. Experimental results demonstrate that the proposed method improves the computation efficiency by 217%~259%as compared with the reference implementation in HM software.关键词
分像素插值/视频编码/H.265/HEVC标准/SSE2指令集Key words
sub-pixel interpolation/video coding/H.265/HEVC/SSE2 instruction set分类
信息技术与安全科学引用本文复制引用
陈丽丽,沈燕飞,邓米克,蔡志峰..基于SSE2对H.265/HEVC中分像素插值的优化[J].计算机工程与应用,2014,(19):136-142,7.基金项目
国家自然科学基金（No.61001123）；广东省院产学研结合项目（No.2012B091100212）。 （）
