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Rate-controlled requantization transcoding for H.264/AVC video streams

Author
Organization
Abstract
Nowadays, most video material is coded using a non-scalable format. When transmitting these single-layer video bitstreams, there may be a problem for connection links with limited capacity. In order to solve this problem, requantization transcoding is often used. The requantization transcoder applies coarser quantization in order to reduce the amount of residual information in the compressed video bitstream. In this paper, we extend a, requantization transcoder for H.264/AVC video bitstreams with a rate-control algorithm. A simple algorithm is proposed which limits the computational complexity. The bit allocation is based on the bit distribution in the original video bitstream. Using the bit budget and a, linear model between rate and quantizer, the new quantizer is calculated. The target bit rate is attained with an average deviation lower than 6%, while the rate-distortion performance shows small improvements over transcoding without rate control.
Keywords
rate control, video transcoding, constant bit rate, H.264/AVC

Citation

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Chicago
Notebaert, Stijn, Jan De Cock, Peter Lambert, and Rik Van de Walle. 2008. “Rate-controlled Requantization Transcoding for H.264/AVC Video Streams.” In Proceedings of the Society of Photo-optical Instrumentation Engineers (spie), ed. Andrew G Tescher. Vol. 7073. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
APA
Notebaert, Stijn, De Cock, J., Lambert, P., & Van de Walle, R. (2008). Rate-controlled requantization transcoding for H.264/AVC video streams. In A. G. Tescher (Ed.), PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) (Vol. 7073). Presented at the Applications of Digital Image Processing XXXI, Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
Vancouver
1.
Notebaert S, De Cock J, Lambert P, Van de Walle R. Rate-controlled requantization transcoding for H.264/AVC video streams. In: Tescher AG, editor. PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE). Bellingham, WA, USA: SPIE, the International Society for Optical Engineering; 2008.
MLA
Notebaert, Stijn, Jan De Cock, Peter Lambert, et al. “Rate-controlled Requantization Transcoding for H.264/AVC Video Streams.” Proceedings of the Society of Photo-optical Instrumentation Engineers (spie). Ed. Andrew G Tescher. Vol. 7073. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering, 2008. Print.
@inproceedings{678806,
  abstract     = {Nowadays, most video material is coded using a non-scalable format. When transmitting these single-layer video bitstreams, there may be a problem for connection links with limited capacity. In order to solve this problem, requantization transcoding is often used. The requantization transcoder applies coarser quantization in order to reduce the amount of residual information in the compressed video bitstream. In this paper, we extend a, requantization transcoder for H.264/AVC video bitstreams with a rate-control algorithm. A simple algorithm is proposed which limits the computational complexity. The bit allocation is based on the bit distribution in the original video bitstream. Using the bit budget and a, linear model between rate and quantizer, the new quantizer is calculated. The target bit rate is attained with an average deviation lower than 6\%, while the rate-distortion performance shows small improvements over transcoding without rate control.},
  articleno    = {70730T},
  author       = {Notebaert, Stijn and De Cock, Jan and Lambert, Peter and Van de Walle, Rik},
  booktitle    = {PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)},
  editor       = {Tescher, Andrew G},
  isbn         = {9780819472939},
  issn         = {0277-786X},
  language     = {eng},
  location     = {San Diego, CA, USA},
  pages        = {12},
  publisher    = {SPIE, the International Society for Optical Engineering},
  title        = {Rate-controlled requantization transcoding for H.264/AVC video streams},
  url          = {http://dx.doi.org/10.1117/12.796405},
  volume       = {7073},
  year         = {2008},
}

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