英特爾杯作品2010年一等獎作品摘要
新一代投影演示系統(tǒng) (一等獎作品)
本文引用地址:http://www.ex-cimer.com/article/133027.htmDesign of a Novel Embedded-system-based Presentation Device
廖泥樂 李 聰 劉孟奇
北京大學(Peking University)
摘要:基于嵌入式系統(tǒng),通過引入擴展接口、添加記錄設備并提出新穎的工作方式來對傳統(tǒng)的投影設備進行改進。利用改進后的系統(tǒng),講演者不僅可以通過網(wǎng)絡交互地控制幻燈片的播放,擺脫頻繁插拔VGA線的不便,還可以只通過一支普通廉價的激光筆就控制整個講演過程以及對幻燈片內(nèi)容添加注解。除此之外,我們的系統(tǒng)僅利用很小的存儲空間,即可記錄包括講演者聲音、激光點的移動、添加的注解和幻燈片播放進度在內(nèi)的整個報告講演的過程,同時在占用較小網(wǎng)絡帶寬的情況下將整個過程向遠程的客戶端直播。
關鍵詞:投影演示系統(tǒng),手勢識別,人機交互,遠程控制
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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