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Title: Performance and complexity analyses of H.264/AVC CABAC entropy coder
Keywords: CABAC, CAVLC, complexity, entropy coding, H.264, rate-distortion optimization
Issue Date: 5-Jan-2007
Citation: HO BOON LENG (2007-01-05). Performance and complexity analyses of H.264/AVC CABAC entropy coder. ScholarBank@NUS Repository.
Abstract: CABAC is one of the entropy coding schemes defined in H.264/AVC. In this work, the coding efficiency, the computational and memory requirements of CABAC are comprehensively assessed for the different type of video encoders. The main contributions of the thesis are the reported findings from the performance and complexity analyses. These findings assist implementers in deciding when to use CABAC for a cost-effective realization of the video codec that meets their systema??s computational and memory resources. Bottlenecks in CABAC have also been identified and recommendations on possible complexity reductions have been proposed to system designers and software developers. It is found that the use of CABAC is only resource expensive when Rate-Distortion Optimization (RDO) is employed. For a RDO encoder, CABAC hardware accelerator will be needed if the real-time requirement is met. Alternatively, suboptimal RDO techniques can reduce the computational and memory requirements of CABAC on the video encoder.
Appears in Collections:Master's Theses (Open)

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