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|Title:||Joint rate allocation for statistical multiplexing in video broadcast applications||Authors:||Yao, Wei
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing||Issue Date:||2012||Source:||Yao, W., Chau, L. P., & Rahardja, S. (2012). Joint rate allocation for statistical multiplexing in video broadcast applications. IEEE transactions on broadcasting, 58(3), 417-427.||Series/Report no.:||IEEE transactions on broadcasting||Abstract:||This paper proposes a new joint rate allocation scheme for statistical multiplexing of multiprogram video coding in broadcast systems. The scheme is based on a scalable video coding (SVC) platform that does not require computationally expensive re-encoding or transcoding to adjust the bit-rate of each video signal. A new complexity measure that incorporates the characteristics of Human Visual System (HVS) is first introduced in the look-ahead approach. The bit-rate for base layer coding is thus more efficiently distributed among videos according to their relative complexities. A piecewise linear model is used to estimate the rate-distortion relationship in SVC enhancement layers. Based on the model, we develop a joint rate allocation scheme to dynamically allocate the available bandwidth by taking into consideration both inter-program fairness and intra-program smoothness constraints. Experiments have been carried out to compare the performance of existing methods with our proposed scheme. Results demonstrate that the proposed scheme achieves a fine balance in picture quality across all statistical multiplexed videos as well as within each video.||URI:||https://hdl.handle.net/10356/102704
|DOI:||10.1109/TBC.2012.2191701||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
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