面向无线视频传感器网络的目标检测与视频重构方法研究

Study on Object Detection and Video Reconstruction Method for Wireless Video Sensor Networks

中文关键词:  无线视频传感器网络  目标检测  视频重构  JPEG2000编码  WinSocket传输

英文关键词:wireless video sensor networks (WVSNs)  object detection  video reconstruction  JPEG2000 coding  WinSocket transmission

中文摘要:

      考虑到无线视频传感器网络中节点资源及能源受限等情况，针对视频监控固定视场中存在的大量冗余信息，提出了一种面向无线视频传感器网络的目标检测与视频重构方法来有效去除冗余。首先传输JPEG2000压缩的背景图像，继续采集视频图像，对其进行目标检测，将检测到的目标图像进行JPEG2000压缩，然后仅传输目标图像压缩码流及其空间位置信息，最后在监控服务端解码后进行图像融合，重构监控视频。实验结果表明，所提方法能有效地去除视频图像的数据冗余，在重建图像质量满足应用需求的情况下，节省了网络传输能耗，延长了网络的系统寿命。

英文摘要:

      In consideration of the restrictions of node resources and energy in wireless video sensor networks,an object detection and video reconstruction method for wireless video sensor networks is proposed，aiming at eliminatiny of the large quantity of redundant information in fixed area of view during video transmission.First of all,the background image compressed by JPEG2000 is transmitted.Then,the compressed bit-stream of object image,coupled with its space position is transmitted while image fusion and the reconstruction of monitoring video are conducted on monitor server.The experimental results show that the proposed method can effectively eliminate data redundancy of video image,while save energy consumption in network transmitting process and prolong system lifetime,on the condition that the quality of the reconstructed image has met the requirements of application.