英特尔杯作品2010年一等奖作品摘要
新一代投影演示系统 (一等奖作品)
本文引用地址:https://www.eepw.com.cn/article/133027.htmDesign of a Novel Embedded-system-based Presentation Device
廖泥乐 李 聪 刘孟奇
北京大学(Peking University)
摘要:基于嵌入式系统,通过引入扩展接口、添加记录设备并提出新颖的工作方式来对传统的投影设备进行改进。利用改进后的系统,讲演者不仅可以通过网络交互地控制幻灯片的播放,摆脱频繁插拔VGA线的不便,还可以只通过一支普通廉价的激光笔就控制整个讲演过程以及对幻灯片内容添加注解。除此之外,我们的系统仅利用很小的存储空间,即可记录包括讲演者声音、激光点的移动、添加的注解和幻灯片播放进度在内的整个报告讲演的过程,同时在占用较小网络带宽的情况下将整个过程向远程的客户端直播。
关键词:投影演示系统,手势识别,人机交互,远程控制
Abstract:This design adopts embedded-system design to upgrade the traditional projector,by introducing extended ports and recording devices,as well as brand-new operating method. With the upgraded design,projector user can interactively play PowerPoint slides over LAN/WLAN linkwithout plugging and dragging the awkward VGA cable, and control presentation progress as well as annotate directly using a cheap laser-pointer. Besides, the new device can record the whole presentation with high-quality (including voice,pointer movement,annotation,and presentation progress) into a very small file,or concurrently broadcast the presentation over the internet to remote client PCs using limited bandwidth.
Keywords:Presentation device, Gesture recogination, Human-machine interaction, remote control
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