计算机应用与软件2012，Vol.29Issue(1)：9-14,6.
一种基于多路视频捕获的分布式互动投影系统
A DISTRIBUTED INTERACTIVE PROJECTION SYSTEM BASED ON MULTI-CHANNEL VIDEO CAPTURE
摘要
Abstract
In recent years, projector-based interactive display systems which are represented by the multi-touch systems and interactive projection systems have been widely used. However, these systems are usually driven by one PC on a single projection device, which limits system scalability, display area and display resolution. This paper proposes a distributed interactive projection system based on multi-channel video capture. It improves system scalability and enlarges display area and display resolution by using multiple PC and multi-projecting seamless stitching technology. Free mesh-based method is used to calibrate the infrared cameras to acquire more precise interactive analysis result. Region updating mechanism is designed to reduce bandwidth demands by utilising the continuity between frames. Also, the software development kit for distributed interactive display systems is designed and implemented, which can be used by the developers to adapt the existing single PC applications to our distributed interactive projection system. Now, this technology has been successfully used in the extra large interactive projection system in Tibet Pavilion in Shanghai Expo 2010.关键词
互动投影/分布式系统/多投影显示Key words
Interactive projection/Distributed system/Multi-projector display分类
信息技术与安全科学引用本文复制引用
张天乐,姜忠鼎..一种基于多路视频捕获的分布式互动投影系统[J].计算机应用与软件,2012,29(1):9-14,6.基金项目
国家自然科学基金(60803064) （60803064）
国家高技术研究发展计划(2006AA01 Z325). （2006AA01 Z325）
