一种适用于WMSNs的分布式图像压缩算法  

Distributed image compression algorithm in wireless multimedia sensor networks

作　　者：翟永平[1] 罗武胜[1] 鲁琴[1] 肖学敏[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,长沙410073

出　　处：《计算机工程与应用》2007年第33期29-32,共4页Computer Engineering and Applications

基　　金：国家高技术研究发展计划(863)(the National High-Tech Research and Development Plan of China under Grant No.2006AA701121)

摘　　要：为了克服无线多媒体传感器网络(WMSNs)中单个节点存储、处理能力和能量严重受限的问题,在研究双正交叠式变换(LBT)的基础上,提出了一种适用于无线多媒体传感器网络的基于LBT变换的分布式图像压缩算法。仿真结果表明,该算法具有低存储、低处理需求和极低能耗的特点,在传感器节点部署较为密集的情况下能成倍地提高网络生命周期。In order to overcome the memory,computation and energy limitation of individual sensor nodes in Wireless Multimedia Sensor Networks （WMSNs）,this paper studies the Lapped Biorthogonal Transform （LBT） theory and proposes a distributed image compression algorithm based on LBT in WMSNs.Simulation results show that this distributed algorithm can greatly reduce the hardware cost and the energy consumptions in WMSNs.The lifetime of the WMSNs can also be prolonged many times in the case of the sensor nodes deployed densely.

关 键 词：无线多媒体传感器网络 分布式 双正交叠式变换 图像压缩 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]