A New Transcoding Scheme for Scalable Video Coding to H.264/AVC
Requests from various video terminals push video servers to equip with scalability for video contents distribution in different ways. Scalable Video Coding (SVC) as the extension of H.264/AVC standard can provide the scalability for video servers by encoding videos into one base layer and several enhancement layers. To enable mobile devices without scalability receive videos at their best extent, converting bit-streams from SVC into H.264/AVC becomes the key technique. Bit-stream rewriting is the simplest way without quality loss. However, rewriting is not a real transcoding scheme, since it needs to modify SVC encoders. This paper proposes a novel transcoding approach to support spatial scalability by minimizing the distortions generated from re-encoding process. The proposed scheme keeps the input bit-streams’ information at maximum and adopts the hybrid upsampling method to do residue scaling, which can reduce the transcoding distortion into minimization. Experimental results demonstrate that the loss of the rate-distortion (RD) performance of the proposed transcoding scheme is better than Full Decoding Re-encoding (FDR) which can get the highest video quality in general sense, by achieving up to 0.9 dB Y-PSNR gain while saving 95%~97% processing time.
Z. Shi, X. Sun, and F. Wu, “Spatially Scalable Video Coding For HEVC”, IEEE Trans. On Circuits Syst. Video Technol., vol. 22, no. 12,pp. 1813-1826, Dec., 2012.
A. Vetro, C. Christopoulos, and H. sun, “Video transcoding architectures and techniques: An overview”, IEEE Signal Processing Magazine, vol. 20, pp. 18-29, Mar. 2003.
M. M. Hannuksela, and Y.-K. Wang, Support for SVC Header Rewriting to AVC, Joint Video Team, Doc. JVT-W046, Apr. 2007.
A. Segall, CE 8: SVC-to-AVC Bit-Stream Rewriting for Coarse Grain Scalability, Joint Video Team, Doc. JVT-V035, Jan. 2007.
Z. Wu, H. Yu, and C. W. Chen, “A New Hybrid DCT-Wiener-Based Interpolation Scheme for Video Intra Frame Up-Sampling”, IEEE Signal Process. Letters, vol. 17, no. 10, pp. 827-830, Oct. 2010.
S. Kim, K. R. Konda, P. M.ah, and S. Ko,“Adaptive Mode Decision Algorithm for Inter Layer Coding in Scalable Video Coding”, Image Processing, 2010. ICIP2010.
MPEG, ITU-T IssUE Scalable Video Coding Standard-ISO/IEC 14496-10, Aug., 2007.
H. Schwarz, D. Marpe, and T. Wiegand, “Overview of the scalable video coding extension of the H.264/AVC standard”, IEEE Trans on Circuits and Systems for Video Technology, vol. 17, No. 9, pp. 1103-1120, Sept. 2007.
A. Segall and J. Zhao, “Bit-stream rewriting for SVC-to-AVC conversion”, Image Processing, 2008. ICIP 2008.
Article MetricsAbstract view : 231 times
PDF - 237 times
- There are currently no refbacks.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
TELKOMNIKA Telecommunication, Computing, Electronics and Control
ISSN: 1693-6930, e-ISSN: 2302-9293
Universitas Ahmad Dahlan, 4th Campus, 9th Floor, LPPI Room
Jl. Ringroad Selatan, Kragilan, Tamanan, Banguntapan, Bantul, Yogyakarta, Indonesia 55191
Phone: +62 (274) 563515, 511830, 379418, 371120 ext. 4902, Fax: +62 274 564604