Priority-based selective H.264 SVC streaming over erroneous converged networks

Ryu, Eun‐Seok; Han, Sung Won

doi:10.1007/s11042-012-1121-1

Cited by 3 publications

(1 citation statement)

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“…Layered coding with transport prioritization is the most popular and effective scheme for providing error resilience in a video transport system [46], assigning priority to different slices/layers [50] [51]. SVC offers us a golden opportunity to design a novel robust video transmission framework.…”

Section: Introductionmentioning

confidence: 99%

Robust Transmission of Scalable Video Coding Bitstream Over Heterogeneous Networks

Dong

Chen

2015

IEEE Trans. Circuits Syst. Video Technol.

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Video transmission using scalable video coding (SVC) enables the functionalities of adaptation for both channel bandwidth and terminal device. However, link adaptation, which requires the video bitstream to provide error resilient scalability, is currently not supported in SVC. In this paper, we propose a robust SVC bitstream transmission framework, which integrates both error resilient coding and error concealment to enable the desired link adaptability. First, at the encoder, we design an error resilient coding scheme for SVC using redundant pictures, in which redundant picture information (RPI) is generated under rate-distortion criteria and transmitted to the media gateway together with the SVC bitstream. Then, error resilient scalability can be effectively achieved at the media gateway by selectively, adding, or removing coded pictures of different video coding layers according to the RPI and current network link status. Finally, at the decoder, we take advantage of the unique characteristics of SVC to develop an error concealment scheme based on both the proposed Virtual-BLSkip method and Wiener filtering in order to recover the lost or removed enhancement layer pictures. The proposed framework has negligible impact on the coding efficiency because it transmits RPIs rather than directly adding redundancy into the original bitstream. More importantly, it successfully strikes a balance between coding efficiency, error resiliency, and operation complexity. It is capable of providing the desired error resilient scalability with extremely low complexity, and maintaining virtually the same bitrate as input video bitstream. The experimental results show that the proposed framework achieves significant performance gains over existing error resilient transmission schemes.Index Terms-Video coding, video communication, scalable video coding, error resilient coding, error concealment, link adaptation.

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Section: Introductionmentioning

confidence: 99%