一种无线视频传感器节点协作跟踪方法

Cooperative Scheme of Target Tracking Based on Wireless Video Sensor Network

摘要:

由于网络通信带宽以及节点能量等因素限制,信息的有效获取与能耗的平衡优化是无线视频传感器网络近期研究的热点,面向目标跟踪的无线视频传感器网络实现节能的关键在于节点的高效协作；文章目的在于研究一种无线视频传感器节点协作跟踪方法,通过综合考虑目标跟踪效果和节点能耗等因素,采用自适应混合高斯算法进行背景建模,分布式均值漂移算法进行目标跟踪,并构建一种基于效能函数的最优节点选择方法；实验结果显示该方法能在真实场景下高效地进行目标跟踪。

Abstract:

Because of the restriction of network communication bandwidth and node energy, the key point of Wireless Video Sensor Network (WVSN) for target tracking is the cooperation of nodes. This paper will focus on research of the effective collaborative strategy of WVSN sensor nodes. By comprehensive considering on factors of tracking accuracy, the network energy and etc, each camera node uses an adaptive Gaussian mixture model to extract moving target and distribute Mean Shift algorithm for target tracking. A novel function measuring the value of utility of tracking as well as energy cost is used to select optimal camera nodes. Experimental results show that the method can effectively achieve tradeoff between performance and energy consumption in real scenes.