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

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number4668507
Pages (from-to)1250-1260
Number of pages11
JournalIEEE Transactions on Multimedia
Volume10
Issue number7
DOIs
Publication statusPublished - 2008 Nov 1

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Media Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A low complexity detection of discrete cross differences for fast H.264/AVC intra prediction'. Together they form a unique fingerprint.

Cite this