摘要本文是致力于视频图像的实时处理器的研究,来获得低噪音,层次分明,鲜明的图像。本文主要介绍了视频图像技术的现状和发展的基本理论,对视频图像的特点进行综合,对常用的图像降噪算法进行分析和研究,重点研究的时域滤波算法,对FPGA技术进行了详细的分析与研究,FPGA是本文的核心技术。63697
本文就是通过设计基于FPGA的视频图像处理器,采用VHDL(Verilog)的编程,硬件,系统控制,数据采集和其他技术来完成视频图像处理器的设计和硬件语言编写,实现视频图像处理板的原理图设计,配与外围设备接口和FPGA图像处理的算法所需的硬件资源,并根据PCB设计,调试电路的原理图。
毕业论文关键词: 视频图像处理 FPGA硬件 编程描述语言VHDL 滤波算法
毕业设计说明书(论文)外文摘要
Title Video image processing board based on FPGA hardware design
Abstract
This article is dedicated to real-time video image processor study to obtain a low noise, structured, vivid images. This paper introduces the video image technology status and development of the basic theory, the characteristics of the video image synthesis, image noise reduction algorithm commonly used for analysis and research, focusing on the time-domain filtering algorithm, the FPGA technology in detail analysis and research, FPGA is the core technology of this article.
This is by design FPGA-based video image processor, using VHDL (Verilog) programming, hardware, system control, data acquisition, and other techniques to accomplish the video image processor and hardware design language to realize the principle of the video image processing board Figure design, with interfaces with peripherals and FPGA image processing algorithms required hardware resources, and in accordance with the PCB design, debug circuit schematic.
Keywords Video image processing, FPGA hardware ,Description language VHDL programming,Filtering algorithm
目录
1 引言 4
1.1 视频图像技术的发展 4
1.2 视频图像技术的应用范围 5
1.3 视频图像技术的研究意义 6
2 视频图像信号的概述 7
2.1 视频信号数字化 7
2.2 数字视频图像 8
2.3 数字视频格式ITU-RBT.656标准 8
3 关于FPGA的相关介绍 10
3.1 FPGA结构 11
3.2 FPGA开发流程 12
3.3 FPGA的开发调试工具 13
4 时域滤波算法 14
4. 1 多真累加平均滤波 15
4.2 时域递归滤波 16
4.3 时域递归滤波中滤波系数k的选取 18
5 视频图像处理器设计 19
5.1 I2C配置模块 21
5.2 同步延时模块 22
5.3 视频合成模块 23
5.4 SRAM控制模块 25
5.5 图像处理算法实现模块 26
6 仿真及调试