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Proceedings Paper

Dynamic full-scalability conversion in scalable video coding
Author(s): Dong Su Lee; Tae Meon Bae; Truong Cong Thang; Yong Man Ro
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Paper Abstract

For outstanding coding efficiency with scalability functions, SVC (Scalable Video Coding) is being standardized. SVC can support spatial, temporal and SNR scalability and these scalabilities are useful to provide a smooth video streaming service even in a time varying network such as a mobile environment. But current SVC is insufficient to support dynamic video conversion with scalability, thereby the adaptation of bitrate to meet a fluctuating network condition is limited. In this paper, we propose dynamic full-scalability conversion methods for QoS adaptive video streaming in SVC. To accomplish full scalability dynamic conversion, we develop corresponding bitstream extraction, encoding and decoding schemes. At the encoder, we insert the IDR NAL periodically to solve the problems of spatial scalability conversion. At the extractor, we analyze the SVC bitstream to get the information which enable dynamic extraction. Real time extraction is achieved by using this information. Finally, we develop the decoder so that it can manage the changing scalability. Experimental results showed that dynamic full-scalability conversion was verified and it was necessary for time varying network condition.

Paper Details

Date Published: 1 March 2007
PDF: 10 pages
Proc. SPIE 6507, Multimedia on Mobile Devices 2007, 650704 (1 March 2007); doi: 10.1117/12.704679
Show Author Affiliations
Dong Su Lee, Information and Communications Univ. (South Korea)
Tae Meon Bae, Information and Communications Univ. (South Korea)
Truong Cong Thang, Information and Communications Univ. (South Korea)
Yong Man Ro, Information and Communications Univ. (South Korea)


Published in SPIE Proceedings Vol. 6507:
Multimedia on Mobile Devices 2007
Reiner Creutzburg; Jarmo H. Takala; Jianfei Cai, Editor(s)

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