Analysis of the spatial layer discrete cosine transform coefficient distribution and its application to rate model for H.264/SVC encoder

The Journal of Engineering

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[1] Graphic Software Development and Validation Team, Visual and Parallel Computing Group, Intel, Santa Clara, CA, USA;

关键词: discrete cosine transforms;    video coding;    spatial layer discrete cosine transform coefficient distribution;    H.264-SVC encoder;    spatial enhancement layer;    SL DCT-DIST;    H.264 scalable video coding;   

DOI  :  10.1049/joe.2013.0173

来源: publisher

【 摘 要 】

Knowledge of the discrete cosine transform coefficient distribution (DCT-DIST) is important for the encoder design. For example, rate control relies on this knowledge to estimate a possible bit rate and then decide proper coding parameters before the actual encoding task is performed. Therefore the rate control performance is fairly dependent on how accurately the DCT-DIST is modelled. The spatial enhancement layer (SL) DCT-DIST for H.264 scalable video coding (SVC) is studied in this Letter. SL DCT-DIST knowledge is furthermore used to derive a novel rate model. Our results can help design a proper rate control module for the H.264/SVC encoder.

【 授权许可】

CC BY