Fast three step intra prediction algorithm for 4×4 blocks in H.264

Chao Chung Cheng*, Tian-Sheuan Chang

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

79 Scopus citations

Abstract

This paper presents a fast three step algorithm for H.264 4×4 tra prediction. Motivated by the highly correlation of RD cost between different prediction direction, in each step of the algorithm, the proposed algorithm efficiently explores the neighborhood direction around the minimum one and thus skips other unlikely ones. Thus, the proposed algorithm can complete 4×4 intra prediction by only examining 6 modes instead of 9 modes in the full search algorithm. The simulation result shows that the proposed algorithm can maintain the similar PSNR quality to the full search algorithm with only about 1% bit rate increase.

Original languageEnglish
Article number1464886
Pages (from-to)1509-1512
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
DOIs
StatePublished - 1 Dec 2005
EventIEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan
Duration: 23 May 200526 May 2005

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