Hardware assisted rate distortion optimization with embedded CABAC accelerator for the H.264 advanced video codec

JL Nunez-Yanez, VA Chouliaras, D Alfonso, F Rovati

Research output: Contribution to journalArticle (Academic Journal)peer-review

31 Citations (Scopus)

Abstract

This paper investigates the algorithmic complexity of rate distortion optimization and arithmetic coding in the new H.264 video coding standard and proposes a hardware accelerator to reduce it by more than an order of magnitude. The accelerator incorporates arithmetic coding and decoding engines and efficiently handles all the context information required by RDO and CABAC in H.264. The bit stream generated by the hardware is equivalent to that generated by the JM 9.4 reference implementation. The ISA of a controlling scalar 32-bit RISC CPU has been extended with custom RDO/CABAC instructions and the accelerator prototyped in a state-of-the-art FPGA technology.
Translated title of the contributionHardware assisted rate distortion optimization with embedded CABAC accelerator for the H.264 advanced video codec
Original languageEnglish
Article numberIssue 2
Pages (from-to)590 - 597
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Volume52
Publication statusPublished - May 2006

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

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