【正文】 .................................................11 4 系統(tǒng)軟件設(shè)計(jì) ............................................................................................................................... 12 圖像傳感器初始 化程序設(shè)計(jì) ................................................................................................ 12 I2C 控制程序設(shè)計(jì) ....................................................................................................... 12 MT9M011初始化程序設(shè)計(jì) ......................................................................................... 14 圖像數(shù)據(jù)采集模塊 .............................................................................................................. 15 圖像采集原理介紹 .................................................................................................... 15 圖像采集模塊的設(shè)計(jì)與仿真 ...................................................................................... 16 武漢理工大學(xué)畢業(yè)設(shè)計(jì)（論文） 格式轉(zhuǎn)換模塊 ..................................................................................................................... 18 格式轉(zhuǎn)換原理介紹 .................................................................................................... 18 模塊程序的設(shè)計(jì)與波形仿真 ...................................................................................... 20 SDRAM 控制器的實(shí)現(xiàn) ........................................................................................................ 22 VGA控制器 ........................................................................................................................ 23 VGA接口介紹 ........................................................................................................... 24 VGA控制器的設(shè)計(jì) .................................................................................................... 24 VGA控制器的仿真與實(shí)現(xiàn) ......................................................................................... 26 5 系統(tǒng)調(diào)試與分析 ........................................................................................................................... 28 系統(tǒng)實(shí)物圖 ........................................................................................................................ 28 系統(tǒng)調(diào)試 ............................................................................................................................ 28 系統(tǒng)調(diào)試過程 ........................................................................................................... 28 系統(tǒng)調(diào)試中遇到的問題 ............................................................................................. 29 系統(tǒng)調(diào)試的體會(huì) ................................................................................................................. 30 結(jié)束語 ............................................................................................................................................. 31 參考文獻(xiàn) ......................................................................................................................................... 32 附錄 1 圖象采集部分源程序 ............................................................................................................ 33 附錄 2 電路圖 ................................................................................................................................. 36 附錄 3 實(shí)物圖和采集圖像 ................................................................................................................ 39 致 謝 ...................................................................................................................錯(cuò)誤 !未定義書簽。該系統(tǒng)采用FPGA 作為主控芯片，來完成對(duì)圖像傳感器、 SDRAM 存儲(chǔ)器以及 VGA 顯示器的時(shí)序控制。 本文首先分析了圖像采集系統(tǒng)的研究現(xiàn)狀和意義，簡(jiǎn)單介紹了系統(tǒng)的設(shè)計(jì)方案和工作原理，之后在論文的 4 章中，我分別對(duì)系統(tǒng)的硬件電路、軟件程序進(jìn)行了詳細(xì)的原理介紹，并對(duì)各模塊進(jìn)行了設(shè)計(jì)和仿真。 關(guān)鍵字 ： FPGA；圖像采集； VGA ； SDRAM 存儲(chǔ)器 武漢理工大學(xué)畢業(yè)設(shè)計(jì)（論文） II Abstract With the continuous development of global science and technology, industrial control, pattern recognition and puter vision for image acquisition have bee increasingly demanding. Acpanied by the emergence of embedded systems and development, to design a reasonable price, the use of flexible image acquisition systems have bee possible, and that the design of image acquisition system also has important practical significance. This paper describes a technique based on embedded digital image acquisition system design. The system uses a FPGA chip as the master to plete the image sensor, SDRAM memory, and VGA monitor control of the timing. The chip is built up of internal configuration module by the I2C, image acquisition module, image data format conversion module, SDRAM controller and the VGA control module. The innovation of this design is to give full play to the FPGA digital signal processing in highly integrated, highspeed advantages of a good solution to many technical problems such as the large amount of image data collection, processing and timeconsuming, plex signals. In addition, the design of image acquisition, processing and display machines are not involved in PC, which is a better solution of the bulky traditional image acquisition, the shortings of high cost. In this paper, I analyze the status and significance of the image acquisition system at first. After a brief introduction of the system design and operating principle, I introduce the principle of the system hardware circuits, software program in detail. At the same time, I design the modules and simulate them in Chapter 3 and 4. Each part of the simulation results with the theoretical results is pared and analyzed, and inkind in the debugger. In the paper in Chapter 5, I record the problems encountered in testing and my own experiences in detail, and gives the results of physical testing. In the physical operation, the system can achieve realtime image acquisition, the image acquisition is clear. This system has received the desired results. Key Words： FPGA； image capture； VGA； SDRAM memory 武漢理工大學(xué)畢業(yè)設(shè)計(jì)（論文） 1 1 緒論 課題提出的背景和意義 人類有 80%以上