AVS M performance analysis and design of encoder and decoder for their application in HDTV

performance analysis of AVS-M and its application in mobile environment

ByVidur Vajani (1000679332)vidur.vajani@mavs.uta.eduUnder the guidance of Dr. K R. Rao

IntroductionAVS stands for the Audio Video coding Standard Workgroup of China, who develops audio/video coding standards as well as system and digital right management standardsAVS-M is the AVS video coding standard targeting for mobile multimedia applicationsAVS M is a Jiben Profile (7th profile) out of the 10 different profiles of AVS.

Objective:This project will provide an insight into the AVS-M video standard, architecture of AVS-M codec, features it offers and various data formats it supportsA study will be done on the key techniques such as transform and quantization, intra prediction, quarter-pixel interpolation, motion compensation modes, entropy coding and in-loop de-blocking filter.History[17]

Figure 1 : History of audio video coding standards [17]Coding and Decoding Process [1]

Figure 2 : Basic block diagram of encoder and decoder [1]AVS Structure[2]

Figure 3 : layered structure [2]Profile Comparison[4]

Table 1 : Comparing differenct profiles of AVS China [4]AVS China Profiles[3]

Table 2 : Profies and their applications [3]AVS-M Encoder[8]

Figuer : 4 AVS-M encoder [8]AVS-M Decoder[8]

Figure 5 : AVS-M decoder [8]Applications Jiben Profile Record and local playback on mobile devices Multimedia Message Service (MMS) Streaming and broadcasting Real-time video conversationReferences:[1] J.Ostermann et al, Video coding with H.264/AVC: Tools, Performance, and Complexity, IEEE Circuits and Systems Magazine, vol. 4,Issue:1, pp. 7 28, Aug. 2004.[2]B. Tang, Y. Chen and W. Ji AVS Encoder Performance and Complexity Analysis Based on Mobile Video Communication, DOI 10.1109/CMC.2009.171, 2009 International Conference on Communications and Mobile Computing[3 ]AVS working group official website, http://www.avs.org.cn[4]Sahana Devaraju and K.R. Rao, A Study on AVS-M Video Standard, M.S. Thesis, Electrical Engineering Department, University of Texas at Arlington, Arlington, TX[5] W. Gao et al., AVS the Chinese next-generation video coding standard, National Association of Broadcasters, Las Vegas, 2004. [6] K. R. Rao and D.N. Kim, Current Video Coding Standards: H.264/AVC, Dirac, AVS China and VC-1, IEEE 42nd Southeastern symposium onsystem theory (SSST), pp.1-8,March 2010.[7] W.Gao and T.Huang AVS Standard -Status and Future Plan, Workshop on Multimedia New Technologies and Application, Shenzhen, China, Oct. 2007.[8] L.Fan, Mobile Multimedia Broadcasting Standards, ISBN: 978-0-387-78263-8, Springer US, 2009.[9] W. Gao, K.N. Ngan and L. Yu, Special issue on AVS and its applications: Guest editorial, Signal Process: Image Commun, vol. 24, Issue 4, pp. 245-344, April 2009.[10] Audio Video Coding Standard (AVS) of China, Ki. N. Ngan, Department of Electronic Engineering, The Chinese University of Hong Kong, 11/19/2009.[11] M. Liu and Z. Wei, A fast mode decision algorithm for intra prediction in AVS-M video coding Vol 1, ICWAPR apos;07, Issue, 2-4, pp.326 331, Nov. 2007.[12] Y. Cheng et al, Analysis and application of error concealment tools in AVS-M decoder, Journal of Zhejiang University Science A, vol. 7, pp. 54-58, Jan 2006.[13] S.Hu, X.Zhang and Z.Yang, Efficient Implementation of Interpolation for AVS, Image and Signal Processing, 2008. Congress on Vol 3, pp133 138, 27-30 May 2008References(contd.)[14] R. Schafer and T. Sikora, Digital video coding standards and their role in video communications, Proc. of the IEEE, vol. 83, pp. 907-924, June 1995.[15] W.Gaoet al., AVSthe Chinese next-generation video coding standard, National Association of Broadcasters, Las Vegas, 2004.[16] B. Lei et al, Optimization and Implementation of AVS-M Decoder on ARM, DOI 10.1109/ICIG.2007.166, IEEE 2007[17] L. Yu, AVS Project and AVS-Video Techniques, http://www-ee.uta.edu/dip/Courses/EE5351/ISPACSAVS.pdf, Dec.13, 2005ISPACS 2005