Requantization transcoding of H.264/AVC bitstreams for intra 4×4 prediction modes
PCM'06 Proceedings of the 7th Pacific Rim conference on Advances in Multimedia Information Processing
Video transcoding: an overview of various techniques and research issues
IEEE Transactions on Multimedia
Performance evaluation of transcoding algorithms for H.264
IEEE Transactions on Consumer Electronics
A frequency-domain video transcoder for dynamic bit-rate reduction of MPEG-2 bit streams
IEEE Transactions on Circuits and Systems for Video Technology
Low-complexity transform and quantization in H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
Optimal data partitioning of MPEG-2 coded video
IEEE Transactions on Circuits and Systems for Video Technology
Overview of the Scalable Video Coding Extension of the H.264/AVC Standard
IEEE Transactions on Circuits and Systems for Video Technology
On the impact of the GOP size in an H.264/AVC-to-SVC transcoder with temporal scalability
Proceedings of the 8th International Conference on Advances in Mobile Computing and Multimedia
An approach for an AVC to SVC transcoder with temporal scalability
HAIS'10 Proceedings of the 5th international conference on Hybrid Artificial Intelligence Systems - Volume Part II
Scalable mobile-to-mobile video communications based on an improved WZ-to-SVC transcoder
MMM'12 Proceedings of the 18th international conference on Advances in Multimedia Modeling
Fast mode decision algorithm for H.264/AVC-to-SVC transcoding with temporal scalability
MMM'12 Proceedings of the 18th international conference on Advances in Multimedia Modeling
SVC-Based HTTP Adaptive Streaming
Bell Labs Technical Journal
A videoconferencing-oriented hybrid-domain H.264/SVC to H.264/AVC spatial transcoder
PCM'12 Proceedings of the 13th Pacific-Rim conference on Advances in Multimedia Information Processing
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The scalable extension of H.264/AVC (SVC) was recently standardized, and offers scalability at a minor penalty in rate-distortion efficiency when compared to single-layer H.264/AVC coding. In SVC, a scaled version of the original video sequence can easily be extracted by dropping layers from the stream. However, most of the video content nowadays is still produced in a single-layer format. While decoding and reencoding is a possible solution to introduce scalability in the existing bitstreams, this is an approach which requires a tremendous amount of time and effort. In this paper, we show that transcoding can be used to intelligently derive scalable bitstreams from existing single-layer streams. We focus on SNR scalability, and introduce techniques that are able to create multiple quality layers in the bitstreams. We also discuss bitstream rewriting from SVC to H.264/AVC, and examine how our newly proposed architectures can benefit from the changes that were introduced for bitstream rewriting. Architectures with different rate distribution flexibility and computational complexity are discussed. Rate-distortion performance of transcoding is shown to be comparable to that of reencoding at a fraction of the time needed for the latter.