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Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
Study and Comparison of H.264, AVS-China and Dirac
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Study and Comparison of H.264, AVS-China and Dirac

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  • 1. Study and Comparison of H.264, AVS-China and Dirac - by Jennie G. Abraham EE5359 – Multimedia Processing, Fall 2009 EE Dept., University of Texas at Arlington
  • 2. Outline
    • Introduction
    • Multimedia Network
    • Home Media Ecosystem
    • Motivation
    • Project Detail
    • Example project elements
      • Architecture Comparison
      • Design Level Analysis
      • Feature Comparison
      • Algorithmic Comparison
      • Performance Comparison
    • Conclusions
    • References
  • 3. Introduction
    • What?
    • Video compression standards  aiming at high quality
    • In general standards leave the implementation open and only standardize the syntax and the decoder.
            • Optimization beyond the obvious
            • Complexity reduction for implementation
    • Who?
      • H.264 : ITU-T VCEG together with the ISO/IEC MPEG
      • AVS China : Audio Video Coding Workgroup of China
      • Dirac : BBC
    • Why?
      • - Different companies, different countries, different applications, royalty fees, better algorithms
  • 4. Motivation
    • Familiarize with the codecs :
    • H.264, AVS China and Dirac
    • Availability of the codecs in MPL @ UTA
  • 5. Scope of Video Standard Figure 1: Video encoding / decoding process Predict Transform Quantize Encode Decode Inverse-Quantization Inverse transform Reconstruct VIDEO ENCODER VIDEO DECODER Bitstream as defined by the standard Scope of the standard Video Output Video Source
  • 6. Video Compression Figure 2: General block diagram of a block-based video codec [33]
  • 7. Intra Coding …. within the same frame Figure 3: Intra coding a macroblock using previously coded pixels from the same block
  • 8. Inter Coding …. using number past and future frames Figure 4: Inter coding a macroblock using past and/or future frames ... “Past” frames ... (one or more previously coded frames) Current frame “ Future” frame Predict Predict MB 1 MB 2 Predict
  • 9. Modes Figure 5: Example of different modes used in AVS-China part 2 [33]
  • 10. Residual Block Figure 6: Calculation of residual information in a general block-based video codec [33]
  • 11. Transform and Quantization residual block Coefficients Figure 7: Residual block is transformed and quantized Transform Quantize 8x8 Image Block
  • 12. Entropy Coding Figure 8:The Transformed and quantized block zigzag scanned and entropy coded
  • 13. Inverse Transform Reconstructed residual block At the decoder side ….. Re-scaled Coefficients Figure 9:The coefficients are re-scaled and inverse transformed to get back the residual information
  • 14. Reconstruction at the Decoder Figure 10: Frame reconstruction at the decoder Form Prediction Predicted MB Decoded residual MB Reconstructed MB Previously decoded frames Current decoded frames Inter Intra
  • 15. Study of H.264 Architecture Figure 11: H.264 encoder and decoder [21]
  • 16. Study of AVS-China Architecture Figure 12 :AVS China Codec [37]
  • 17. Study of Dirac Architecture Figure 13 : Dirac codec architecture [1]
  • 18. Profiles in H.264
  • 19. Profiles in AVS-China Profiles Key applications Jizhun profile (base) Television broadcasting, HDTV, etc. Jiben profile (basic) Mobility applications, etc. Shenzhan profile (extended) Video surveillance, etc. Jiaqiang profile (enhanced) Multimedia entertainment, etc.
  • 20. Algorithmic Comparison Quantization scaling matrices. Quantization scaling matrices. Quantization scaling matrices. Other 8×8 DCT 4×4 wavelet transform 4×4 integer DCT, 8×8 integer DCT Transform 2D variable length coding. Arithmetic coding CAVLC,CABAC Entropy coding De-blocking filter. None De-blocking In loop filters One reference each way, Multiple reference. Direct and symmetrical mode. One reference each way, Multiple reference One reference each way, Multiple reference, Direct & spatial direct weighted prediction. B frame type Single and multiple reference (maximum of 2 reference frames) Single reference, Multiple reference Single reference Multiple reference P frame type 1/4 pel 1/8 pel Full pel, Half pel. Quarter pel Motion vector Precision 16 × 16, 16 × 8, 8 × 16, 8 × 8 4×4 16 × 16, 16 × 8, 8 × 16, 8 × 8, 8 × 4, 4 × 8, 4×4 Motion compensation block size Frame Frame Frame, Field Picture AFF, MB AFF Picture coding type 8 × 8 block based Intra Prediction 4x4 spatial 4x4 spatial, 16x16 spatial I-PCM Intra Prediction AVS China Part 2 Dirac MPEG-4 AVC (H.264) Algorithmic Element
  • 21. Performance Comparison Results
  • 22. Results
  • 23. Results
  • 24. Results
  • 25. Outcome
    • The project helped in increasing familiarity in working with these codecs.
    • The experimental results gave an insight into the efficiency of these codecs compared to each other
    • The different aspects of simulation of each codec such as the following was learned and understood
      • Modes of Configuration
      • Modification of Parameters
      • Input sequence specifications
      • Analyze the codec output
    • Efficient use of time and re-use of knowledge
  • 26. References
    • DIRAC:
    • [1] T. Borer, and T. Davies, “Dirac video compression using open technology”, BBC EBU Technical Review, July 2005
    • [2] BBC Research on Dirac: http:// www.bbc.co.uk/rd/projects/dirac/index.shtml
    • [3] The Dirac web page: http:// dirac.sourceforge.net
    • [4] T. Davies, “The Dirac Algorithm”: http:// dirac.sourceforge.net /documentation/algorithm/ , 2005.
    • [5] Dirac developer support: Overlapped block-based motion compensation:
    • http://dirac.sourceforge.net/documentation/algorithm/algorithm/toc.htm
    • [6] “Dirac Pro to bolster BBC HD links”: http://www.broadcastnow.co.uk/news/multi-platform/news/dirac-pro-to-bolster-bbc-hd-links/1732462.article
    • [7] Dirac software and source code: http:// diracvideo.org/download/dirac -research/
    • [8] Dirac video codec - A programmer's guide:
    • http://dirac.sourceforge.net/documentation/code/programmers_guide/toc.htm
    • [9] Daubechies wavelet: http:// en.wikipedia.org/wiki/Daubechies_wavelet
    • [10] Daubechies wavelet filter design: http://cnx.org/content/m11159/latest/
    • [11] Dirac developer support: Wavelet transform: http://dirac.sourceforge.net/documentation/algorithm/algorithm/wlt_transform.xht
    • [12] Dirac developer support: RDO motion estimation metric:
    • http://dirac.sourceforge.net/documentation/algorithm/algorithm/rdo_mot_est.xht
    • [13] A. Ravi and K.R. Rao, “Performance analysis and comparison of the Dirac video codec with H.264/ MPEG-4 Part 10 AVC", IJWMIP, Jan. 2010.
  • 27. References
    • H.264:
    • [14] T.Wiegand, et al “Overview of the H.264/AVC video coding standard”, IEEE Trans. on Circuits and Systems for Video Technology, Vol.13, pp 560-576, July 2003.
    • [15] T. Wiegand and G. J. Sullivan, “The H.264 video coding standard”, IEEE Signal Processing Magazine, vol. 24, pp. 148-153, March 2007.
    • [16] D. Marpe, T. Wiegand and G. J. Sullivan, “The H.264/MPEG-4 AVC standard and its applications”, IEEE Communications Magazine, vol. 44, pp. 134-143, Aug. 2006.
    • [17] S.K.Kwon, A.Tamhankar and K.R.Rao, “Overview of H.264 / MPEG-4 Part 10” J. Visual Communication and Image Representation, Vol 17, pp.186-216, April 2006.
    • [18] A. Puri, X. Chen and A. Luthra, “Video coding using the H.264/MPEG-4 AVC compression standard”, Signal Processing: Image Communication, vol. 19, pp. 793-849, Oct. 2004
    • [19] H.264/MPEG-4 AVC: http://en.wikipedia.org/wiki/H.264
    • [20] M.Fieldler, “Implementation of basic H.264/AVC decoder”, seminar paper at Chemnitz University of Technology, June 2004
    • [21] H.264 encoder and decoder: http://www.adalta.it/Pages/407/266881_266881.jpg
    • [22] R. Schäfer, T. Wiegand and H. Schwarz, “The emerging H.264/AVC standard”, EBU Technical Review, Jan. 2003.
    • [23] H.264 reference software download : http:// iphome.hhi.de/suehring/tml /
    • [24] D. Marpe, T. Wiegand, and S. Gordon, "H.264/mpeg4-avc fidelity range extensions: tools, profiles, performance, and application areas," IEEE International Conference on Image Processing, vol. 1, pp. I-593-6, 2005.
    • [25] S. Saponara, et al, "The JVT advanced video coding standard: complexity and performance analysis on a tool-by-tool basis," in Packet Video Workshop, Nantes, France, April 2003.
  • 28. References
    • VC-1:
    • [26] VC-1 technical overview - http://www.microsoft.com/windows/windowsmedia/howto/articles/vc1techoverview.aspx
    • [27] Microsoft Windows Media: http:// www.microsoft.com/windows/windowsmedia
    • [28] http://en.wikipedia.org/wiki/VC-1
    • [29] S Srinivasan, et al, “Windows media video 9: overview and applications”, Signal Processing: Image Communication, Vol. 19, Issue 9, pp. 851-875, Oct. 2004.
    • AVS:
    • [31] AVS Video Expert Group, “Information technology – Advanced coding of audio and video – Part 2: Video (AVS1-P2 JQP FCD 1.0),” Audio Video Coding Standard Group of China (AVS), Doc. AVS-N1538, Sep. 2008.
    • [32] AVS Video Expert Group, “Information technology – Advanced coding of audio and video – Part 3: Audio,” Audio Video Coding Standard Group of China (AVS), Doc. AVS-N1551, Sep. 2008.
    • [33] L. Yu et al., “Overview of AVS-Video: Tools, performance and complexity,” SPIE VCIP, vol. 5960, pp. 596021-1~ 596021-12, Beijing, China, July 2005.
    • [34] L. Fan, S Ma and F Wu, “Overview of AVS video standard,” IEEE Int’l Conf. on Multimedia and Expo, ICME '04, vol. 1, pp. 423–426, Taipei, Taiwan, June 2004.
    • [35] W Gao et al., “AVS – The Chinese next-generation video coding standard,” National Association of Broadcasters, Las Vegas, 2004.
    • [36] Special issue on 'AVS and its Applications' Signal Processing: Image Communication, vol. 24, pp. 245-344, April 2009.
    • [37] AVS China software : ftp://159.226.42.57/public/avs_doc/avs_software
  • 29. References
    • PERFORMANCE COMPARISON:
    • [38] K. Onthriar, K. K. Loo and Z. Xue, “Performance comparison of emerging Dirac video codec with H.264/AVC”, IEEE International Conference on Digital Telecommunications, Vol. 06, Page: 22, Issue: 29-31, Aug. 2006.
    • [39] X. Wang and D. Zhao "Performance comparison of AVS and H.264/AVC video coding standards"
    • J. of computer science and technology, Vol. 21, No. 3, pp. 310-314, May 2006.
    • [40] Comparison of H.264 and VC-1: http://en.wikipedia.org/wiki/Comparison_of_H.264_and_VC-1
    • [41] A. A. Ramirez, et al. "MPEG-4 AVC/H.264 and VC-1 codecs comparison used in IPTV video streaming technology," Electronics, Robotics and Automotive Mechanics Conference, pp.122-126, 2008.
    • [42] Comparison between AVC/H.264, VC-1 and MPEG-2 - http://www.ebu.ch/en/technical/trev/trev_302-sunna.pdf
    • [43] H. Kalva and J.B Lee, “The VC-1 and H.264 video compression standards for broadband video Services”, Springer, 2008
    • SSIM:
    • [44] Z. Wang, et al “Image quality assessment: From error visibility to structural similarity”, IEEE Trans. on Image Processing, vol. 13, pp. 600-612, Apr. 2004.
    • [45] SSIM index for image quality assessment: http://www.ece.uwaterloo.ca/~z70wang/research/ssim/
    • [46]    Z. Wang, et al “ Multi -scale structural similarity for image quality assessment ,” IEEE Asilomar Conference on Signals, Systems and Computers, Vol.2 , pp. 1398 - 1402 Nov. 2003.
    • [47] SSIM: http:// en.wikipedia.org /wiki/SSIM
    • VIDEO TEST SEQUENCES:
    • [48] Video test sequences (YUV 4:2:0): http:// trace.eas.asu.edu/yuv/index.html
    • [49] Video test sequences ITU601: http://www.cipr.rpi.edu/resource/sequences/itu601.html  
    • BOOKS:
    • [50] I. Richardson, “ The H.264 advanced video compression standard”, Hoboken, NJ: Wiley, 2010

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