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Optical Engineering • Open Access

Fast multiple run_before decoding method for efficient implementation of an H.264/advanced video coding context-adaptive variable length coding decoder
Author(s): Dae Wook Ki; Jae Ho Kim

Paper Abstract

We propose a fast new multiple run_before decoding method in context-adaptive variable length coding (CAVLC). The transform coefficients are coded using CAVLC, in which the run_before symbols are generated for a 4×4 block input. To speed up the CAVLC decoding, the run_before symbols need to be decoded in parallel. We implemented a new CAVLC table for simultaneous decoding of up to three run_befores. The simulation results show a Total Speed-up Factor of 205%∼144% over various resolutions and quantization steps.

Paper Details

Date Published: 4 March 2013
PDF: 9 pages
Opt. Eng. 52(7) 071502 doi: 10.1117/1.OE.52.7.071502
Published in: Optical Engineering Volume 52, Issue 7
Show Author Affiliations
Dae Wook Ki, Pusan National Univ. (Korea, Republic of)
Jae Ho Kim, Pusan National Univ. (Korea, Republic of)


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