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
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
WANG Zhiliang; JIN Jiehua; LIU Jiwei; MOU Shitang. Realization of Motional Video Surveillance System Based on CDMA and MPEG-4[J]. Computer Engineering, 2006, 32(20): 242-243.
王志良;金洁华;刘冀伟;牟世堂. 基于CDMA和MPEG-4的移动视频监控的实现[J]. 计算机工程, 2006, 32(20): 242-243.