无线多媒体传感器网络视频编码研究

摘要

在资源受限的无线多媒体传感器网络中存在大量的视频数据需要处理和传输.为充分地利用这些有限的资源,需要设计一个能够综合考虑能量消耗和压缩率、图像质量之间平衡的视频编码方案.对无线多媒体传感器网络中视频编码技术的发展现状、面临的挑战和设计目标进行了讨论.对无线多媒体传感器网络视频编码现有的解决方案和理论研究成果进行探讨,分别从个体信源编码和分布式信源编码两方面进行分类探索.最后,对个体信源编码存在的一些问题进行讨论,并指出了未来研究的方向.%There are a large number of video data have to be processed and transmitted in resource-constrained wireless multimedia sensor networks (WMSN). One possible way to achieve the maximum utilization of those resources is to apply an adaptive video coding scheme, which must consider the trade-off among energy consumption, compression ratio and image quality. The state-of-the-art in video coding techniques, the major research challenges and the objectives of video coding for WMSN are discussed. Existing solutions and theoretical explorations of video coding for WMSN are investigated and classified, including single source coding and distributed source coding. Finally, fundamental issues of single source coding are discussed, and future research trends in this area are outlined.