基于USB的高分辨率图形采集分析系统的设计  

A Design of High Graphics Grabbing and Analyzing System based on USB

作　　者：张起贵[1] 张磊[1] 倪嘉[1] 

机构地区：[1]太原理工大学,太原030024

出　　处：《电脑开发与应用》2009年第5期38-40,共3页Computer Development & Applications

基　　金：太原理工大学技术开发基金资助项目(203-24041221)

摘　　要：设计了一种基于USB的高分辨率图形采集分析系统,可用于采集并分析高分辨率的模拟RGB分量视频信号,并且采用USB2.0的接口进行输出,方便使用。设计没有对数字化后的图像信号压缩处理,而是利用FPGA进行了一种合并帧的处理方法以实现高速输入与低速输出的协调,数字图像像素点的色信息没有丢失,在保证了便携性特点的基础上最大限度地减少了失真。PC上可以通过计算得到采集到的图形像素的RGB分量信息,作为分析数据。This paper is showing a design of the high graphics grabbing card based on USB. It can gather high-resolution RGB video signal. The output is using the USB2.0 which is portable and used in the most situation. The digital video signal can be reduced its bandwidth by FPGA by merging consecutive frames without compression in order to coordinate the high speed input and low speed output. The color information doesn＇t lose any more. It minimizes the information loss under the precondition of the portability. The RGB value of the gathered image which is got by the software on PC can be the analytical data.

关 键 词：模数转换 图形采集 FPGA 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]