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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (1): 45-49    DOI: 10.3785/j.issn.1008-973X.2011.01.007
计算机技术﹑电信技术     
基于无线多媒体传感器网络的目标定位方法
李鉴庭,金心宇,唐军,张昱
浙江大学 信息与电子工程学系,浙江 杭州 310027
Target localization method based on wireless multimedia sensor network
LI Jian-ting, JIN Xin-yu, TANG Jun, ZHANG Yu
Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
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摘要：

根据无线多媒体传感器网络(WMSN)多节点合作处理的特点,提出简化定标场景的单节点和双节点目标定位方法.通过使用带颜色的辅助定标物标定特殊点位置,采用CamShift算法实现辅助标定物的颜色追踪,获得特殊点的像素坐标.利用节点监控区域特殊点的位置坐标获取摄像机的参数矩阵,通过布置2个具有平移特性的节点,获取运动目标的三维坐标.实验表明,单节点平面定位最大误差为1216 cm,双节点平面定位最大误差为1369 cm,双节点高度定位误差为3～5 cm.通过观察二维平面误差曲面,大多数节点的定位误差能够满足无线多媒体传感器网络目标跟踪的需要,算法复杂度低,实现过程简单.
Abstract:

A single node and double nodes target localization method used in simplified calibration scenes was proposed based on the characteristics of wireless multimedia sensor network (WMSN) to deal with multinode cooperation. The pixel coordinate of the special point was gained through using the auxiliary calibration object with color to mark the position of special node and using the Camshift algorithm to trace the color of auxiliary calibration object. The location of special node in monitor area was used to obtain the parameters of the camera matrix. Threedimensional coordinates of moving targets were obtained through arranging tow nodes which have the characteristic of translation. Experimental results showed that the largest error of single node plane localization was 12.16 cm, the largest error of double nodes plane localization was 13.69 cm, and the error of double nodes height localization was 3-5 cm. The error surface of twodimensional plane shows that the localization error of the most nodes can meet the needs of WMSN target localization with low complexity and simple implementation．
出版日期: 2011-03-03
:  TP 393  
基金资助:

浙江省科技计划资助项目(2005C31001).
通讯作者: 金心宇，男，教授,博导.     E-mail: jinxy@zju.edu.cn
作者简介: 李鉴庭(1986-)，男，广东深圳人，硕士生，从事无线宽带网络通信与信息处理研究. E-mail: ljtszsy@zju.edu.cn
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李鉴庭,金心宇,唐军,张昱. 基于无线多媒体传感器网络的目标定位方法[J]. J4, 2011, 45(1): 45-49.

LI Jian-ting, JIN Xin-yu, TANG Jun, ZHANG Yu. Target localization method based on wireless multimedia sensor network. J4, 2011, 45(1): 45-49.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.01.007    或    http://www.zjujournals.com/eng/CN/Y2011/V45/I1/45

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