基于小波图像编码的远程监控系统的设计与实现
Remote surveillance system based on wavelet image coding
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摘要: 小波变换由于其多分辨率特性而特别适合图像编码。该文设计了一种基于小波图像编码的远程监控系统。整个系统由本地监控端和远程主控端组成。本地监控端包括图像采集、小波变换图像编码和发送3个模块。小波变换图像编码由二维小波变换和零树编码组成。设计了监控端各个模块的硬件结构,编写了其硬件结构的Verilog HDL模型,进行了仿真和逻辑综合,并用FPGA进行了验证。编写了主控端的远程接收、控制软件,成功实现了基于小波图像编码的远程监控系统。Abstract: The wavelet transform is ideal for image coding due to its capability for multi-resolution representation. This paper presents a remote surveillance system based on the wavelet image coding. The system contains two subsystems, the local monitor and the remote control. The local monitor consists of the image capture module, the wavelet coding module which has two blocks of 2-D wavelet transform and the zerotree coding, and the transmit module. The hardware structure of each module is designed, and the Verilog HDL modules of the local monitor are programmed and simulated. The hardware is then synthesized to FPGA. The receiver program for the remote control is designed, and the remote surveillance system is implemented successfully.
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