基于NiosⅡ的SPIHT算法图像压缩卡的设计

Design of Image Compression of SPIHT Algorithm Card Based on NiosⅡ

针对高速传输系统中大批量数据不易传输的问题,提出了一种基于片上系统图像压缩卡的设计方法,讨论了采用软核NiosⅡ处理器的配置方式、简化SPIHT算法的硬件实现原理和LVDS图像数据接收转存的操作流程。详细论述了系统各模块的设计原理及实现方法,并对各模块进行了实际的性能测试和分析,结果表明该压缩卡性能稳定,可以高效地完成图像数据压缩。

Aiming at the transmission system, this paper transmission problem of large puts forwards a design method quantities of data in high speed of image compression card based on system-on-chip. The method discusses configuration mode of using soft-core Nios Ⅱprocessor, hardware implementation principle of simplifying SPIHT algorithm and operation process of receiving and storing of LVDS image data. The paper discusses detailedly the design principle and realization method of each module in system and provides actual performance testing and analysis to each module. The results show that the compression card has stable performance and can efficiently complete the image data compression.