摘要
为了进一步提高图像采集速度和质量,提出了一种基于NiosⅡ多核的高速图像采集方法。介绍了一种基于FPGA的高速图像采集系统,在该系统中,使用Altera公司的CycloneⅡ型FPGA,并配置了NiosⅡ双软核cpu的构架方式,采用结合乒乓操作原理和面积换速度原则的方法设计图像采集系统,提高了图像采集的速度,然后融合JPEG2000图像压缩的算法保存并传输给上位机,从而提高了图像采集质量。最终完成一种高速图像采集系统,仿真结果表明,与传统的图像采集方法相比,该方法具有更高的图像采集速度和图像采集质量。
In order to improve the speed and quality of image acquisition,a method of high-speed image acquisition based on NiosⅡ was proposed.A high-speed image acquisition system based on FPGA was introduced.In this system,Altera＇s CycloneⅡof FPGA was used and Nios Ⅱ dual-mode soft-core framework CPU was configured.The velocity of image acquisition was improved by the theory of ping-pang operation and the principle of transition rate.Data was kept and transmitted to the host computer by image compression algorithm of JPEG2000 to improve the quality of image acquisition,and a high-speed image acquisition system was realized.The simulation experiments demonstrate that this method provides a higher speed and quality of image acquisition than traditional methods.
出处
《化工自动化及仪表》
CAS
北大核心
2010年第8期83-86,共4页
Control and Instruments in Chemical Industry
基金
陕西省科技厅工业攻关项目(2006K05-G17)
西安市科学技术局资助项目(YF07031)
