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计算机工程 ›› 2006, Vol. 32 ›› Issue (20): 242-243. doi: 10.3969/j.issn.1000-3428.2006.20.089

• 工程应用技术与实现 • 上一篇    下一篇

基于CDMA和MPEG-4的移动视频监控的实现

王志良,金洁华,刘冀伟,牟世堂   

  1. (北京科技大学信息工程学院,北京 100083)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-10-20 发布日期:2006-10-20

Realization of Motional Video Surveillance System Based on CDMA and MPEG-4

WANG Zhiliang, JIN Jiehua, LIU Jiwei, MOU Shitang   

  1. (Information Engineering College, Beijing University of Science and Technology, Beijing 100083)
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-10-20 Published:2006-10-20

摘要: 在该移动视频监控系统中,采用MSTFP模型来预测CDMA无线网络下一时刻的有效带宽。以此为基础,结合H.263与XVID代码中调节器的设计,设计并实现了基于缓存容量反馈控制法的自适应码率控制策略。实验表明,通过CDMA 网络传输,视频速率与信道速率得到了良好匹配,实现视频很好的传输与显示。

关键词: CDMA, MPEG-4, 码率控制, 视频监控系统

Abstract: In this motional video surveillance system, MSTFP model is adopted to predict the next-time available bandwidth of CDMA. Based on it, referring to the design of the regulator in H.263 and the XVID codes, the scheme designs an auto-adapted rate-control strategy based on buffer capacity and feedback control. The experiment shows that the video speed and the channel rate obtain a good match, and provides a better transmission and display of the video.

Key words: CDMA, MPEG-4, Rate control, Video surveillance system