EE 5359 TOPICS IN SIGNAL PROCESSING PROJECT ANALYSIS OF AVS-M FOR LOW PICTURE RESOLUTION MOBILE APPLICATIONS Under Guidance of: Dr. K. R. Rao Dept. of Electrical Engineering, UT Arlington Submitted by: Aditya R Deshkar Student ID:

OBJECTIVE Audio video standard for Mobile (AVS-M) [1] is seventh part of the standard developed by Audio Video coding Standard (AVS) workgroup of China. Provide insight into AVS-M video coding standard (Jiben Profile) [2] Analyze its architecture, features and data formats for its use in low complexity and low picture resolution mobile applications.

Various AVS China Parts Table 1: AVS China Parts [3]

Main Characteristics of AVS Video standards: Streamlined and highly efficient video coder Provide optimization between absolute coding performance and complexity of implementation Designed to provide near optimum performance Provide low cost implementations

AVS CHINA PROFILES Table 2: AVS China Profiles and Applications[4]

VARIOUS AVS-M COMPONENTS TO BE ANAYSYZED IN THE PROJECT AVS-M Encoder AVS-M Decoder Layered Structure Key Techniques involved in AVS-M Applications Reference Software

AVS-M Encoder Figure 1 : AVS-M Encoder [5]

AVS-M Decoder Figure 2: AVS-M Decoder [5]

LAYERED STRUCTURE Figure 3

KEY TECHNIQUES INVOLVED IN AVS-M Intra prediction Quarter-pixel interpolation Motion compensation modes Transform and quantization Entropy coding In-loop de-blocking filter

APPLICATIONS Multimedia Message Service (MMS) 2. Video on Demand 3. Streaming and Broadcasting 4. Real-Time Video Conversation 5. High Resolution Digital Broadcast 6. High-Density laser digital storage media 7. Wireless Broad-Band multimedia communication 8. Internet Broadband Stream Media

SOFTWARE AVS-M Reference Software Software will be used to implement AVS Encoder and Decoder. AVS-M video codec will be analyzed using the software at various measures like 1)PSNR [8] 2)Bit Rate 3)SSIM [3]

List of Acronyms: AU Access Unit AVS Audio Video Standard AVS-M Audio Video Standard for mobile CAVLC Context Adaptive Variable Length Coding DIP Direct Intra Prediction DPB Decoded Picture Buffer EOB End of Block HD High Definition HHR Horizontal High Resolution ICT Integer Cosine Transform IDR Instantaneous Decoding Refresh I-Frame Intra Frame IMS IP Multimedia Subsystem ITU-T International Telecommunication Union MB Macroblocks PSNRPeak Signal to Noise Ratio SSIMStructural Similarity Index Metric NAL Network Abstraction Layer P-Frame Predicted Frame

References: [1] AVS working group official website, [2] W. Gao et al, "AVS– the Chinese next-generation video coding standard," National Association of Broadcasters, Las Vegas, 2004 [3] L.Fan et al, "Overview of AVS Video Standard", IEEE International conference on multimedia and expo, Vol 1, pp , June [4] B. Tang, Y. Chen and W. Ji "AVS Encoder Performance and Complexity Analysis Based on Mobile Video Communication", 2009 International Conference on Communications and Mobile Computing [5] L.Fan, "Mobile Multimedia Broadcasting Standards", Springer US, 2009 [6] AVS-M Reference Software, [7] Y. Cheng et al, "Analysis and application of error concealment tools in AVS-M decoder", Journal of Zhejiang University –Science A, vol. 7, pp , Jan 2006 [8] Website for PSNR, [9] Download AVS-M software from :ftp:// /public/avs_doc/avs_softwareftp:// /public/avs_doc/avs_software [10] S. Ma, S. Wang, W. Gao, "Overview of IEEE 1857 Video Coding Standards” IEEE ICIP, pp , September 2013, Melbourne, Australia (Several papers related to AVS China are in IEEE ICIP,2013) [11] Lu Yu et al, " Overview of AVS-video coding standards", Signal Processing: Image Communication, pp , 2009.