若干多媒体展示系统及关键技术分析.docx

上海大学硕士学位论文
摘要
多媒体技术把声音、图像、动画、视频等多种媒体信息综合集成,使展示应用更加生动、更具有交互性和娱乐性,因而在科技展示中得到广泛应用。多媒体展示涉及技术内容种类多,配合运用手段多样,力求从最佳的角度展示宣传内容。多媒体信息处理和展示技术不断进步发展,已经在科普教育和科技展览中充分地发挥作用,强化宣传和视听传达效果,营建现代化特色的数字展览馆。
现代多媒体展示技术项目在上海科技馆资助下,研究出多种多媒体展示方法。通过声、光、机、电及计算机多媒体技术,结合影视、美术等动画制作, 利用人的视觉心理和视错觉,产生幻影、三维等展示效果,有着强烈的视觉冲击感,体现了多学科、跨专业互相合作的成果。多数展示项目已经完成建设, 在展区中供观众参观。
本文从多媒体项目中选取三个最典型的项目,幻影成像展示、三维立体成像展示和LED摆杆显示系统。从系统光学原理和视觉心理学出发,提出系统工作原理和结构设计,并结合具体的实际项目工程,对其中诸如多媒体同步、光学设计、系统安全、多媒体制作、图像处理和编码等关键性技术进行了深入研究,从整体上反映了多媒体展示技术的设计思想和特点。
这些多媒体展示系统图、文、声、影并茂地向观众介绍相关的科普知识, 为传播科学知识提供了有效手段,而且以新颖的视听感觉给人们带来的乐趣。
关键词:多媒体展示,媒体同步,三维立体成像,单片机,PLC
上海大学硕士学位论文
ABSTRACT
Multimedia tecbalology,integrated some media information together,such as voice, and video,etc,makes media display more interactive and fascinating SO that it is widely applied into technological display,covering many techniques and multiform applications,trys to display the
content from the best the increasing advancement of multimedia information and display techniques,they help to enhance the quality of propaganda and visual-audial delivery and further create the digital museum with modern
characteristics.
Modern multimedia display technique subject,supported by the Shanghai Science mad Technology Museum,has achieved many novel display on the principle of visual psychology and optical illusion,they create the visual enjoyment,such as virtual image,3-D image and etc,casting visual attraction and shock on human eyes,through voice,optical,mechanical and multimedia techniques coupled with film and art animation projects have already pleted and visited by the public in the museum.
presented in detail by analysis of their application into the specific projects,which
reflects characteristic and development of display technology on the whole.
These multimedia display techniques not only introduce the scientific and technological knowledge to visitors through vivid way,but also