Adding SVC Spatial Scalability to Existing H.264/AVC Video
ICIS '09 Proceedings of the 2009 Eigth IEEE/ACIS International Conference on Computer and Information Science
Spatial transcoding from scalable video coding to H.264/AVC
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Architectures for fast transcoding of H.264/AVC to quality-scalable SVC streams
IEEE Transactions on Multimedia
Adaptation of scalable video coding to packet loss and its performance analysis
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
Video transcoding: an overview of various techniques and research issues
IEEE Transactions on Multimedia
Motion-based temporal transcoding from H.264/AVC-to-SVC in baseline profile
IEEE Transactions on Consumer Electronics
Overview of the Scalable Video Coding Extension of the H.264/AVC Standard
IEEE Transactions on Circuits and Systems for Video Technology
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As an extension of H.264/AVC, Scalable Video Coding (SVC) provides the ability to adapt to heterogeneous requirements. However, transcoding between SVC and AVC becomes necessary due to the existence of legacy AVC-based systems. The straightforward full re-encoding method requires great computational cost, and fast SVC-to-AVC spatial transcoding techniques have not been thoroughly investigated yet. This paper proposes a low-complexity SVC-to-AVC spatial transcoder in hybrid domain (pixel domain & transform domain) with drift compensation. In the pixel-domain transcoding, a fast re-encoding method is proposed based on mode mapping and MV refinement. In the transform-domain transcoding, the quantized transform coefficients together with motion data are reused directly to avoid re-quantization loss. At last, the drift problem in proposed transcoder is solved. Simulation results show that proposed transcoder achieves averagely 96.4% time reduction compared with the full re-encoding method, and outperforms the reference methods in coding efficiency.