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题名 DLP投影显示系统无缝拼接的研究
姓名 柴海峰
院系 物理科学与技术学院
专业 光学
学位名称 理学硕士
外文题名 Seamless tiling of DLP projection display system
第一导师姓名 张福甲
关键词 大屏幕显示;无缝拼接;DLP;边缘融合;Gamma校正;FPGA
外文关键词 Larger- Screen Display;Seamless tiling;DLP;Edge-blending;Gamma Correction;FPGA
学科 理学
摘要 随着时代的发展和经济的进步,计算机网络已在各行业得到广泛应用,多媒体技术对显示设备的功能和性能提出了更高的要求,因此大屏幕投影无缝拼接系统已成为最重要的显示设备之一。大屏幕显示系统广泛应用于交通管理中心、指挥中心、电视台、工业监控等场合,可实现对视频监控信号、计算机图形监控系统、GPS等计算机图像信息的综合显示,形成一个信息准确、查询便捷、管理高效、美观实用的信息显示管理控制系统。 本课题设计并制作了一个DLP投影系统边缘融合拼接处理器的实验板,实现了将一个高分辨率的图像分为两个分图像,按两部分在边缘交叠的方式分别投影。在投影之前,先对相重叠部分的图像信号,按融合函数关系进行淡入淡出的边缘融合处理,叠加后在重叠部分可以消除重叠痕迹,实现了无缝拼接的目标。 本文介绍了大屏幕投影显示系统的一般构成,并分析了DLP的投影显示的工作原理;详细阐述了边缘融合技术和Gamma校正的原理;陈述了硬件系统中器件的选取及PCB板的设计、制作过程;通过MATLAB模拟融合结果,使用带有DVI接口的LCD显示器显示实验结果,并对使用PR650 光谱光度/色度计对显示结果进行测量;分析了模拟、显示和测量的结果。 DLP的无缝拼接投影显示系统具有良好的市场前景,是目前十分重要的一种投影技术,所以在南开大学光电子所所承接的国家科技部863平板显示项目的支持下,作为兰州大学和南开大学联合培养学生,我选择DLP的无缝拼接投影显示系统的研究作为我的论文课题。
外文摘要 With the development of the times and economic progress, the computer network in the industry has been widely used, Multimedia technology to the display device and the function of the higher performance requirements. Therefore larger-screen projection system seamless tiling has become the most important one of the display device. Larger-screen display system is widely used in traffic control centers, command centers, television stations, industrial control, and so on. Video can be realized right signal monitoring, computer graphics control system, GPS and other computer images of integrated information, forming an accurate information, inquiries convenient, efficient management, aesthetics and practical information indicating management control system. The topic of the design and production of an edge-blending processor of a DLP projection system, to achieve a high resolution of the images is divided into two sub-images, in part by two overlapping edges of the projection respectively. The first part of the overlapping image signal by integration function relationships Fade out of the edge of integration, superposed in partially overlapping traces can eliminate duplication and achieve seamless tiling of the goal. This paper presents a larger-screen projection system shows the general structure, and analysis of the DLP Projection Display of physics; elaborate on the edge-blending Technology and Gamma correction principle; stated hardware system and device selection for PCB design, production process; plate MATLAB simulation through the integration of the results, the use of DVI interface with the LCD display shows the experimental results, PR650 against the use of spectral photometric / colorimeter to show results measurement; Analysis of the simulation, display and measuring results. The seamless tiling DLP projection display system has good market prospects, is a projection of the importance of technology. In Nankai University photoelectron undertaken by the Ministry of Science and Technology 863 flat panel display support for the project, Lanzhou University, as joint training and Nankai University students I chose the seamless tiling DLP Projection Display System Study as my thesis topic.
研究领域 光电子
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