A Novel Content-based Video Coding Scheme for Robust Video Transmission over Ad Hoc Networks

被引：0
|
作者：
Gong, Shengrong [1 ]
Yang, Jun [1 ]
Zhang, Shukui [1 ]
机构：
[1] Soochow Univ, Coll Comp Sci & Technol, Suzhou, Jiang Su, Peoples R China
来源：
2009 5TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-8 | 2009年
关键词：
Ad Hoc; content-based; ROI; multiple description coding; robust video transmission;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Current video encoding schemes used for Ad Hoc networks do not consider the characteristics of human visual system and the importance of image content when designing the encoder, so their encoding methods need to be improved. By analyzing motion information as well as the texture feature of video images, we propose a novel content-based video coding scheme C-FPMDC for robust video transmission over Ad Hoc networks. First determine the region of interest (1101) of the video image before actual coding. Then divide the video sequence into ROI slice group and regular slice group using dynamic flexible macro block ordering (FMO) technology. After that, carry out multiple description coding scheme and redundant slices (RSs) technology to protect ROI slices. Finally transmit the bit-stream using multi-path transmission. The simulation results based on H.264/AVC show that our method improves the objective and subjective quality, of the reconstructed video sequence obviously and ensure a robust video transmission over Ad Hoc networks.
引用
收藏
页码：693 / 697
页数：5
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