A low complexity detection of discrete cross differences for fast H.264/AVC intra prediction

K. Bharanitharan, Bin Da Liu, Jar Ferr Yang, Wen Chih Tsai

研究成果: Article同行評審

34 引文 斯高帕斯(Scopus)

摘要

A low complexity fast mode decision algorithm for H.264/AVC intra prediction that uses discrete cross differences (DCD) to reduce the unlikely candidate modes in the RDO calculation is proposed. By using horizontal and vertical differences in different locations, the directions of the edges can be precisely detected. Experimental results show that the proposed fast mode decision algorithm reduces the encoding time by about 56%, with negligible loss of video quality. To realize the proposed algorithm, a VLSI design, which is comprised of a cross difference unit and direction detection unit, is implemented for the mode pre-selection stage of intra prediction. The design is synthesized using UMC 0.18 /im CMOS technology and simulated with Verilog-XL. The operating frequency of the synthesized core can exceed 50 MHz.

原文English
文章編號4668507
頁(從 - 到)1250-1260
頁數11
期刊IEEE Transactions on Multimedia
10
發行號7
DOIs
出版狀態Published - 2008 十一月

All Science Journal Classification (ASJC) codes

  • 訊號處理
  • 媒體技術
  • 電腦科學應用
  • 電氣與電子工程

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