MPEG-2 to AVS-M Transcoder with Mode Decision Optimization for Mobile Video Communication
AVS-M (The Advanced Audio Video Coding Standard-Mobile Version) is established by Audio Video Standard Working Group of China for mobile-multimedia applications. To meet demands for communication between multimedia source and mobile system, transcoding from MPEG- 2 to AVS-M is a key technique. However, the advanced intra and inter mode decision techniques adopted in AVS-M have a high computing requirement, which limits the real time implementation in mobile environment. In this paper, we propose a prediction mode decision optimization algorithm to reduce the transcoding complexity based on our previous work. Analyzing the relation among the prediction errors of blocks and doing adaptive motion re-estimation, we fast decide the best inter mode. Utilizing the directional feature of DCT coefficients, we fast decide the best intra mode. The simulation results show that the proposed MPEG-2 to AVS-M transcoder with mode decision optimization can be effectively adopted for mobile video communications.
transcoder MPEG-2 AVS-M mode decision mobile video communication
Zhen Han Ruimin Hu Li Zhu Qiong Liu
The School of Computer;The Key Laboratory of Multimedia and Network Communications Engineering Wuhan The Key Laboratory of Multimedia and Network Communications Engineering Wuhan University Wuhan,China
国际会议
武汉
英文
2006-09-01（万方平台首次上网日期，不代表论文的发表时间）