發(fā)布時(shí)間：2018-03-27 16:21

  本文選題：檔案　切入點(diǎn)：存儲(chǔ)介質(zhì)　出處：《齊魯工業(yè)大學(xué)》2013年碩士論文

【摘要】：檔案是指國(guó)家機(jī)構(gòu)、社會(huì)組織以及個(gè)人從事政治、軍事、經(jīng)濟(jì)、科學(xué)、技術(shù)、文化、宗教等活動(dòng)直接形成的對(duì)國(guó)家和社會(huì)有保存價(jià)值的各種文字、圖表、聲像等不同形式的歷史記錄。傳統(tǒng)的檔案主要是以紙張為載體來(lái)記錄檔案信息的，長(zhǎng)時(shí)間存放會(huì)出現(xiàn)紙張泛黃、破損、字跡模糊等問(wèn)題，最終可能會(huì)導(dǎo)致重要檔案信息的丟失。而隨著科技的發(fā)展和社會(huì)的進(jìn)步，信息化管理也已經(jīng)滲透到社會(huì)生活的各個(gè)領(lǐng)域，檔案的存儲(chǔ)介質(zhì)也開(kāi)始由傳統(tǒng)的紙質(zhì)檔案向電子檔案轉(zhuǎn)化。對(duì)電子檔案的處理技術(shù)也就應(yīng)運(yùn)而生。 本文首先分析了數(shù)碼相機(jī)的結(jié)構(gòu)及其工作原理，然后又分析了現(xiàn)場(chǎng)可編程邏輯門(mén)陣列（FPGA）的結(jié)構(gòu)和工作方式，指出了應(yīng)用FPGA器件解決本本系統(tǒng)的圖像采集、處理和顯示等問(wèn)題的優(yōu)勢(shì)。研究了基于FPGA的可編程片上系統(tǒng)（SOPC）在各個(gè)方面的特點(diǎn)，，包括設(shè)計(jì)的靈活性、功能的可裁剪性、軟硬件的可編程性和良好的集成性；同時(shí)分析了圖像處理片上可編程系統(tǒng)的設(shè)計(jì)思路及設(shè)計(jì)流程，最后詳細(xì)說(shuō)明了系統(tǒng)軟硬件設(shè)計(jì)的基本思路和實(shí)現(xiàn)形式。 根據(jù)檔案存儲(chǔ)介質(zhì)轉(zhuǎn)換處理系統(tǒng)的功能特點(diǎn)，對(duì)整個(gè)系統(tǒng)進(jìn)行了合理的軟硬件劃分。在此基礎(chǔ)上，構(gòu)建了基于SOPC技術(shù)的圖像處理系統(tǒng)的總體架構(gòu)，并分別對(duì)圖像采集、圖像處理、圖像顯示等功能模塊進(jìn)行了結(jié)構(gòu)設(shè)計(jì)。系統(tǒng)的硬件設(shè)計(jì)是在QuartusII開(kāi)發(fā)環(huán)境中進(jìn)行的，而軟件部分則是在NiosII軟件開(kāi)發(fā)環(huán)境中編寫(xiě)的。系統(tǒng)的采集部分首先分析了SD卡的基本結(jié)構(gòu)和工作模式，并對(duì)FAT文件系統(tǒng)進(jìn)行了分析，然后將SD卡中的圖片讀取到FPGA中，對(duì)圖像處理部分，首先對(duì)獲取的圖片進(jìn)行檢測(cè)，看圖片是不是傾斜，然后在NiosII軟件開(kāi)發(fā)環(huán)境中編寫(xiě)程序?qū)A斜的圖片進(jìn)行圖像的旋轉(zhuǎn)校正同時(shí)轉(zhuǎn)換圖片格式，圖像顯示部分是直接將處理后的圖片由FPGA控制VGA顯示。最后，對(duì)整個(gè)系統(tǒng)設(shè)計(jì)進(jìn)行了實(shí)驗(yàn)驗(yàn)證，結(jié)果表明，系統(tǒng)基本滿足了預(yù)期的要求，具有一定的實(shí)用參考價(jià)值。 本課題經(jīng)過(guò)軟硬件設(shè)計(jì)和測(cè)試，基本實(shí)現(xiàn)了最初的設(shè)計(jì)目標(biāo)。構(gòu)建出了一套基于FPGA的檔案存儲(chǔ)介質(zhì)轉(zhuǎn)換處理的系統(tǒng)。為以后的研究提供了參考并奠定了基礎(chǔ)。
[Abstract]:Archives refer to various words, graphs and charts that are directly formed by state institutions, social organizations, and individuals engaged in political, military, economic, scientific, technological, cultural, religious, and other activities that are of preservation value to the state and society. Different forms of historical records, such as audio and video. The traditional archives mainly use paper as the carrier to record archival information. Problems such as yellowing, breakage, and blurred handwriting will occur when the paper is stored for a long time. Eventually, it may lead to the loss of important archival information. With the development of science and technology and the progress of society, information management has also penetrated into all fields of social life. The storage medium of archives began to transform from traditional paper files to electronic files, and the processing technology of electronic files came into being. In this paper, the structure and working principle of digital camera are analyzed, then the structure and working mode of FPGA (Field Programmable Logic Gate Array) are analyzed, and the application of FPGA device to the image acquisition of this system is pointed out. The advantages of processing and displaying problems. The characteristics of FPGA based system on Chip (FPGA) are studied, including design flexibility, function clipping, software and hardware programmability and good integration. At the same time, the paper analyzes the design idea and design flow of the image processing on-chip programmable system, and finally explains the basic idea and realization form of the software and hardware design of the system in detail. According to the functional characteristics of the file storage medium conversion processing system, the software and hardware of the whole system are divided reasonably. On this basis, the overall structure of the image processing system based on SOPC technology is constructed, and the image collection is carried out respectively. Image processing, image display and other functional modules are designed. The hardware design of the system is carried out in the QuartusII development environment. The software part is written in the NiosII software development environment. The collection part of the system first analyzes the basic structure and working mode of SD card, and then analyzes the FAT file system, and then reads the images of SD card into FPGA. In the image processing part, the image obtained is first detected to see if the image is tilted, and then in the NiosII software development environment, a program is written to correct the image rotation and transform the image format. In the image display part, the processed images are displayed directly by VGA controlled by FPGA. Finally, the design of the whole system is verified by experiments. The results show that the system basically meets the expected requirements and has certain practical reference value. After the software and hardware design and testing, the original design goal is basically realized. A set of file storage medium conversion processing system based on FPGA is constructed, which provides a reference for future research and lays a foundation for future research.
【學(xué)位授予單位】：齊魯工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP333

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