基于多窗口管理的多投影显示系统

发布时间：2018-03-12 16:18

本文选题：多投影显示　切入点：多窗口管理　出处：《复旦大学》2010年硕士论文　论文类型：学位论文

【摘要】： 随着科学技术的高速发展以及信息量的急速膨胀,在大规模信息可视化、虚拟现实和仿真、数字影院、展览展示、会议及教育等诸多领域,人们对显示技术的要求越来越高。主要需求表现为高的分辨率、大的显示尺寸和强的沉浸感。由于单台投影仪支持分辨率有限,对多台投影仪输出画面进行拼接来构建多投影显示系统已经成为一个备受关注的研究热点。目前多投影显示系统根据实现方式可分为硬件实现和软件实现。专业硬件产品处理能力强,系统可伸缩性好,但往往针对一种应用场合,价格不菲。国内外研究小组开发的多投影显示系统在非专业硬件基础上利用软件实现各种功能,例如几何和颜色校正,边缘融合,远程交互等。软件实现往往系统功能丰富,价格低廉。目前,基于专业硬件的多投影系统的主要问题为：对于VGA模拟信号,系统缺乏对VGA采集信号进行高质量的颜色校正,难以消除多投影拼接画面色度和亮度的不一致；缺乏对每类应用进行灵活配置,多配置间难以动态切换；当系统输入信号种类较多,每类包含大量的信号采集窗口时,现有系统未提供面向任务的多窗口管理机制。本文给出了一套基于多窗口管理的多投影显示系统。与现有基于专业硬件的多投影系统相比,本文系统具有如下优势： ●利用软件方式实现系统的各种功能,扩展性较好,且系统采用非专业硬件,系统成本较专业硬件产品价格低。 ●内置多个处理模块,能对采集得到的信号数据进行相关处理。模块与模块之间能自由组合成处理流水线。另外,能动态管理信号处理所需参数,对同一类型参数提供多套配置,并能在多配置之间动态切换。 ●提供类似于Windows的系统桌面和任务栏,用户通过简单的鼠标操作即可实现复杂的布局管理。提供应用场合配置管理功能,支持多个应用场合以及应用场合之间的动态切换。实验数据和实际应用表明本文系统能在主流硬件环境下实现对各类外接信号源的实时捕获,在大部分应用场合下绘制达到实时水平。面向任务的多窗口控制端简化了用户操作,提高了系统的可用性。
[Abstract]:With the rapid development of science and technology and the rapid expansion of information, there are many fields such as large-scale information visualization, virtual reality and simulation, digital cinema, exhibition, conference and education, etc. The demand for display technology is becoming higher and higher. The main requirements are high resolution, large display size and strong immersion. It has become a hot topic to construct multi-projection display system by splicing the output images of multiple projectors. At present, the multi-projection display system can be divided into hardware implementation and software implementation according to the implementation mode. The professional hardware product has strong processing ability and the system is scalable, but it is often aimed at a kind of application situation. The multi-projection display system developed by research groups at home and abroad uses software to realize various functions on the basis of non-professional hardware, such as geometric and color correction, edge fusion, remote interaction, etc. At present, the main problems of multi-projection system based on professional hardware are as follows: for VGA analog signal, the system lacks of high quality color correction for VGA acquisition signal, so it is difficult to eliminate the inconsistency between color and brightness of multi-projection splicing images; There is a lack of flexible configuration for each class of applications, and it is difficult to dynamically switch between multiple configurations. When there are more types of input signals and each class contains a large number of signal acquisition windows, the existing system does not provide a task-oriented multi-window management mechanism. This paper presents a multi-projection display system based on multi-window management. Compared with the existing multi-projection system based on professional hardware, the system has the following advantages:. Using software to realize various functions of the system, the system has good expansibility, and the system adopts non-professional hardware, and the cost of the system is lower than that of the specialized hardware products. Built in multiple processing modules, can collect the signal data processing. Modules and modules can be freely combined into processing pipeline. In addition, can dynamically manage the parameters required for signal processing, Provides multiple configurations for the same type of parameters and can dynamically switch between multiple configurations. Provides the system desktop and taskbar similar to Windows, the user can realize the complex layout management through the simple mouse operation, provides the application situation configuration management function, supports the multi-application situation and the application situation dynamic switching. Experimental data and practical application show that the system can capture all kinds of external signal sources in the mainstream hardware environment in real time. In most applications, rendering reaches real-time level. Multi-window control for task simplifies user operation and improves the usability of the system.
【学位授予单位】：复旦大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TN873

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