摘要图像采集处理系统是用设备来捕获客观世界的图像和特征，其主要是完成图像信号的采集、处理、存储等功能。图像采集处理系统在当今工业、军事、医学等领域都有着极其广泛的应用。基于现场可编程门阵列(FPGA)的图像处理系统正得到人们日益广泛的重视与研究。FPGA具有很强的动态配置灵活性，具有处理速度快可移植性强的优势，非常适合视频图像的实时处理。64993

本文详细分析了系统中不同功能模块的工作原理、数据通信特点以及设计要求。在此基础上，设计了一个基于ITU656协议及I2C数据传输，利用Altera公司的Cyclone系列芯片的实时视频采集系统。最后，对视频采集系统进行了调试及验证。结果表明，系统能够满足对图像的高速采集功能的要求，对画面进行实时显示，并且可以为后续的图像处理提供条件。64993

关键词   图像采集 FPGA SDRAM 图像处理 模块

毕业论文 外 文 摘 要

Title      A design of a image acquisition program  on the high-speed FPGA platform                                

Abstract Image acquisition and processing system is a equipment used to capture the image and the character of the objective world, which is mainly to complete the image’s signal acquisition, processing, storage and other functions. In today's industrial, the image acquisition and processing system is widely used in military, medical and other fields. The image processing system, based on the field programmable gate array FPGA, is getting increasingly both people's attention and research. The FPGA has a highly flexibility of dynamic configuration, with an advantage of high speed processing portability. All this make it very suitable for real-time video image processing.

This paper analyzes the principles, data communication characteristics and requirements of design in the different functional modules in this system. On this basis, I design a real-time video acquisition system， based on ITU656 and I2C data transfer, by using Altera's Cyclone series chip. At last, the video capture system was functional debugged and verificated. The result shows that the system can meet the requirements of high-speed image capture function. It can display on the screen real-time, and can provide the conditions for the subsequent image processing.

Keywords  Image capture ,FPGA, SDRAM, Image processing, Module

目    次

1 绪论 1

1.1    课题研究背景 1

1.2    研究现状 2

1.2.1图像采集的现状及发展 2

1.2.2 FPGA的优势 3

1.3本课题主要工作 4

2 系统方案介绍 5

2.1    系统软硬件的选择 5

2.1.1系统硬件选择 5

2.1.2 软件开发平台 6

2.2系统总体方案 6

3 系统硬件结构 8

3.1 图像采集系统框架 8

3.2 FPGA中央控制器 8

3.3 视频编解码模块