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http://dx.doi.org/10.5909/JBE.2012.17.4.596

Synchronization Method of Stereoscopic Video in 3D Mobile Broadcasting through Heterogeneous Network  

Kwon, Ki-Deok (Dept. of Computer Engineering, Pusan National University)
Yoo, Young-Hwan (Dept. of Computer Engineering, Pusan National University)
Jeong, Hyeon-Jun (Dept. of Computer Engineering, Pusan National University)
Lee, Gwang-Soon (Broadcasting Systems Research Department, ETRI)
Cheong, Won-Sik (Broadcasting Systems Research Department, ETRI)
Hur, Nam-Ho (Broadcasting Systems Research Department, ETRI)
Publication Information
Journal of Broadcast Engineering / v.17, no.4, 2012 , pp. 596-610 More about this Journal
Abstract
This paper proposes a method to provide the high quality 3D broadcasting service in a mobile broadcasting system. In this method, audio and video data are delivered through a heterogeneous network, consisting of a mobile network as well as a broadcasting network, due to the limited bandwidth of the broadcasting system. However, it is more difficult to synchronize the left and right video frames of a 3D stereoscopic service, which come through different types of networks. The proposed method suggests the use of the offset from the initial timestamp of RTP (Real Time Protocol) to determine the order of frames and to find the pair of a left and a right frame that must be played at the same time. Additionally, a new signaling method is introduced for a mobile device to request a 3D service and to get the initial RTP timestamp.
Keywords
3D Video Synchronization; Mobile Broadcast; RTP; OMA-BCAST;
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