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Journal Article Switching Picture Added Scalable Video Coding and its Application for Video Streaming Adaptive to Dynamic Network Bandwidth
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Authors
Jie Jia, 김해광, Haechul Choi
Issue Date
200801
Source
방송공학회논문지, v.13 no.1, pp.119-127
ISSN
1226-7953
Publisher
한국방송공학회 (KOSBE)
DOI
https://dx.doi.org/10.5909/JBE.2008.13.1.119
Project Code
07MR2900, Development of Ubiquitous Content Access Technology for Convergence of Broadcasting and Communications, Yoo Jeong Ju
Abstract
Transmission of video over Internet or wireless network requires coded stream capable of adapting to dynamic network conditions instantly. To meet this requirement, various scalable video coding schemes have been developed, among which the Scalable Video Coding (SVC) extension of the H.264/AVC is the most recent one. In comparison with the scalable profiles of previous video coding standards, the SVC achieves significant improvement on coding efficiency performance. For adapting to dynamic network bandwidth, the SVC employs inter-layer switching between different temporal, spatial or/and fidelity layers, which is currently supported with instantaneous decoding refresh (IDR) access unit. However, for real-time adaptability, the SVC has to frequently employ the IDR picture, which dramatically decreases the coding efficiency. Therefore, an extension of SP picture from the AVC to the SVC for an efficient inter-layer switching is investigated and presented in this paper. Simulations regarding the adaptability to dynamic network bandwidth are implemented. Results of experiment show that the SP picture added SVC provides an average 1.2 dB PSNR enhancement over the current SVC while providing similar adaptive functionality.
KSP Keywords
Coding efficiency, Dynamic Network, Inter-layer, Network bandwidth, Real-Time, Scalable Video Coding, Wireless network, video coding standard, video streaming