基于DSP技术的网络图像智能压缩系统设计

Design of Network Image Intelligent Compression System Based on DSP Technology

为降低网络图像在传输中占用的带宽,设计了基于数字信号处理(Digital Signal Processing,DSP)技术的网络图像智能压缩系统。该系统由传输接口、处理器、设备接口、通信总线以及信号处理器等硬件设备构成。引进DSP技术,使用传感器与摄像机,采集前端网络图像,利用图像在传输中反馈的信号,转换处理网络图像空间维度。提取前端输出的总线同步信号,控制网络图像的数字化信号,将其编写入先入先出队列(First Input First Output,FIFO)程序。利用前一信号的相关特性,预测下一信号的空间表现形式,并与实测值的差错量同步编码,从而实现网络图像在空间中的压缩与编码传输。实验结果证明,设计系统的实际应用效果良好,可以有效压缩网络图像,保证图像在共享与传输中的高效性与时效性。

In order to reduce the bandwidth occupied by network image in transmission, an intelligent network image compression system based on Digital Signal Processing(DSP) technology is designed. According to the requirements of system development, select the power supply equipment and processor. Introduce DSP technology, use sensors and cameras, collect the front-end network image, use the signal fed back in the transmission, convert the spatial dimension of the network image. Extract the bus synchronization signal of the output of the front end, and write it into the First Input First Output(FIFO) program. Use the related characteristics of the previous signal to realize the compression and coding transmission of the network image in space. The design comparison experiment proves that the design system is good in practical application.