计算机工程与应用2012，Vol.48Issue(14)：27-32,6.DOI:10.3778/j.issn.1002-8331.2012.14.007
无线多媒体传感器网络图像通信性能分析
Performance analysis for image communication in wireless multimedia sensor networks
摘要
Abstract
The objective of this paper is to study the image communication behavior of a wireless video sensor, and analyze its performance under resource constrained wireless multimedia sensor networks. Energy consumption and rate distortion model of DCT and DWT based image compression and transmission is developed. Based on energy consumption and rate distortion model proposed, resource allocation is optimized with limited energy and bandwidth. Encoding coefficients are adapted according to the activity of monitoring scene, and then the energy consumption is minimized. Simulation results are conducted to show the performance of the work. The proposed scheme dramatically reduces image compression and transmission energy consumption under expected image distortion and transmission rate.关键词
无线多媒体传感器网络/图像压缩/图像传输/离散余弦变换(DCT)/离散小波变换(DWT)Key words
wireless multimedia sensor networks/ image compression/ image transmission/ Discrete Cosine Trans-form(DCT)/ Discrete Wavelet Transform(DWT)分类
信息技术与安全科学引用本文复制引用
熊哲源,樊晓平,刘少强,瞿志华,衷路生..无线多媒体传感器网络图像通信性能分析[J].计算机工程与应用,2012,48(14):27-32,6.基金项目
国家自然科学基金(No.60870010,No.60776834,No.60904049). （No.60870010,No.60776834,No.60904049）
