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

Szu-Wei Lee¹ 

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

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

DOI  :  10.1049/joe.2013.0173

学科分类：工程和技术（综合）

来源: IET

【 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