EE 5359

MULTIMEDIA PROCESSING

PROJECT PROPOSAL

PERFORMANCE ANALYSIS OF AVS-M AND ITS APPLICATION IN MOBILE ENVIRONMENT

Under the guidance of

DR. K R RAO

DETARTMENT OF ELECTRICAL ENGINEERING

UNIVERSITY OF TEXAS AT ARLINGTON

VIDUR K VAJANI (1000679332)

Email id:

Introduction:

Over the past 20 years, analog based communication around the world has been sidetracked by digital communication. The modes of digital representation of information such as audio and video signals have undergone much transformation in leaps and bounds.

Figure shown below explains the evaluation of coding standards.

Figure 1: History Of Audio Video coding standards[17]

AVS China [1] was developed by the AVS workgroup, and is currently owned by China. This audio & video standard was initiated by the Chinese government in order to counter the monopoly of the MPEG standards, which were costing it dearly.Audio video standard for Mobile (AVS-M) is the seventh part of the most recent video coding standard which is developed by AVS workgroup of China which aims for mobile systems and devices with limited processing and power consumption.

Figure 2 shows the evaluation of AVS video coding standards.

Audio video standard for Mobile (AVS-M) is the seventh part of the most recent video coding standard which is developed by AVS workgroup of China which aims for mobile systems and devices with limited processing and power consumption.

Table 1: AVS profiles and their applications [3]

Basic Structure:

Figure 3: Layered Structure[2]

Encoder:

AVS-M encoder is shown in figure 4.

Figure: 4 AVS-M encoder[8]

Decoder:

AVS-M decoder is shown in figure 5.

Figure 5: AVS-M decoder [8]

The three main characteristics of AVS china are that[3]

  • It is technically an advanced second generation source coding standard and is totally controlled and formulated by China. - advanced
  • The standard work group law document is formulated independently - independent
  • It has an international opening on its formulation Process - opening

Project Objective:

The real-time mobile video communication requires the balance between performance and complexity. This project provides an insight into the AVS-M video standard, architecture of AVS-M codec, features it offers and various data formats it supports. A study is 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.

Because the system resource is limited in mobile platform compared with AVS P2, AVS-M has lower complexity, and is suitable for mobile-multimedia applications. Major applications of AVS-M are given below.

  • Jiben Profile
  • Record and local playback on mobile devices
  • Multimedia Message Service (MMS)
  • Streaming and broadcasting
  • Real-time video conversation
  • Video On demand

References:

[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,

[4]SahanaDevaraju 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 2008

[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., “AVS–the 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