CRCD/EI: Effective Distance Learning Through Sustained Interactivity and Visual Realism

CRCD/EI：通过持续的交互性和视觉真实感实现有效的远程学习

• 批准号: 0417458
• 负责人: Voicu Popescu
• 金额: $ 54万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-15 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0417458&HistoricalAwards=false
• 关键词: CRCD; EI; Effective; Distance; Learning

0417458Voicu PopescuPurdue University"CRCD/EI: Effective Distance Learning Through Sustained Interactivity and Visual Realism"$539,999This project combines research in vision, image processing, robotics, and computer graphics to create a novel distance learning system that enables instructors and remote learners to feel a "sense of presence" in the classroom. The project involves researching, developing, deploying and assessing a distance learning system that extends the real classroom to accommodate remotely located students in a unique way. The system's effectiveness comes from conveying a strong sense to both remote and local participants that the remote participants are actually present in the classroom. The sense of presence is enabled by: Interactivity -- the system supports high-bandwidth, low-latency, uninterrupted, and secure communications between the participants; High-quality graphics -- the system provides realistic, visual descriptions of the classroom, instructor, students, and of the lecture materials by combining segmented high-resolution real-time video with pre-downloaded photorealistic 3D models and presentation materials. The virtual classroom that hosts the remotely located students is seamlessly integrated with the real classroom. The real classroom is extended to accommodate remotely located students. Each remotely located student is acquired in real-time and integrated in a common virtual 3D classroom that is rendered and projected continually on a wall of the real classroom. At the local site, the instructor sees the remotely located students as if they were local students seated in additional rows at the back of the classroom. The model of the virtual classroom is photorealistic, with a geometry that allows the instructor to easily see the remote participants well. At the remote site students participate in the lecture using a personal computer and a digital video camera with a rapid interface broadband connection to the Internet. The PIs anticipate that their system will overcome many of the shortcomings of current distance education including: inadequate graphical representation of the remote students; inadequate integration of the virtual classroom; lack of support for individual remotely located students; lack of support of other educational activities; and missing or inadequate tools for digital content creation.

0417458Voicu Popescu普渡大学“CRCD/EI：通过持续的交互性和视觉现实主义进行有效的远程学习”539,999美元该项目结合了视觉、图像处理、机器人和计算机图形学方面的研究，创建了一个新颖的远程学习系统，使教师和远程学习者能够感受到课堂上的“存在感”。该项目涉及研究、开发、部署和评估远程学习系统，该系统扩展了真实的课堂，以独特的方式适应偏远地区的学生。该系统的有效性来自于向远程和本地参与者传达一种强烈的感觉，即远程参与者实际上出现在教室中。临场感是通过以下方式实现的： 交互性——系统支持参与者之间的高带宽、低延迟、不间断且安全的通信；高质量图形——该系统通过将分段高分辨率实时视频与预先下载的逼真 3D 模型和演示材料相结合，提供对教室、教师、学生和讲座材料的真实、视觉描述。远程学生所在的虚拟教室与真实教室无缝集成。真实的教室经过扩展，可以容纳偏远地区的学生。每个远程学生都会被实时采集并集成到一个公共虚拟 3D 教室中，该教室不断渲染并投影在真实教室的墙上。在本地站点，教师看到远程学生就好像他们是坐在教室后面额外几排的本地学生一样。虚拟教室的模型非常逼真，其几何形状使讲师可以轻松地看到远程参与者。在远程站点，学生使用个人计算机和带有快速接口宽带连接到互联网的数码摄像机参加讲座。 PI 预计他们的系统将克服当前远程教育的许多缺点，包括： 远程学生的图形表示不足；虚拟教室整合不足；缺乏对个别偏远学生的支持；缺乏其他教育活动的支持；数字内容创建工具缺失或不足。