29 January 2007 Improvements of multiple FGS layers coding for low-delay applications in SVC
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Abstract
For low-delay applications in Scalable Video Coding, there are two alternative coding strategies based on AR-FGS for compressing multiple FGS layers. However, their coding efficiencies both suffer largely from the inherent drifting errors. In this paper, a more efficient multiple FGS layers coding structure is presented, which can provide higher coding performance within wide bitrate range and stronger error resilience. This is achieved by incorporating the partial-reconstructed enhancement layer references, instead of the complete-reconstructed ones, into the motion-compensated prediction loop of the FGS layers. Thereupon the prediction drift can be effectively decreased, especially for the middle bitrate points. Further, through selecting different-quality enhancement layer references generated with cycle-based reconstruction mechanism, more flexible video quality can be supported to be more suitable for varied practical application requirements.
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Yanyan Zheng, Xiangyang Ji, Feng Wu, Debin Zhao, Wen Gao, "Improvements of multiple FGS layers coding for low-delay applications in SVC", Proc. SPIE 6508, Visual Communications and Image Processing 2007, 65082Y (29 January 2007); doi: 10.1117/12.705329; https://doi.org/10.1117/12.705329
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