视频公开课中视觉注意引导信息的图文重构

发布时间：2018-07-10 16:10

本文选题：视频公开课 + 视觉注意　；参考：《现代教育技术》2013年01期

【摘要】：投影机呈现的信息与教师发出的视觉注意引导信息共同构成屏幕信息。目前,包括视频公开课在内的课程随堂录像,教师发出的视觉注意引导信息几乎全被忽略,缺失的屏幕信息使受众困惑。通过增设屏幕摄像机,为重构的视觉注意引导信息提供准确的屏幕位置、进入、退出时间点、延续时长等依据。在视频同步编辑中,运用非线性编辑系统中的各种视频表达方法,使教师发出的视觉注意引导信息超越现场的表现方式,让远程学习的受众准确、形象、适时地感受到视觉注意引导信息,达到了完整屏幕信息远程传播的目的。
[Abstract]:The information presented by the projector and the visual attention guidance information issued by the teacher constitute the screen information. At present, with the video recording, the visual attention guidance information issued by teachers is almost ignored, and the missing screen information makes the audience confused. By adding screen camera, it can provide accurate screen position, entry, exit time and duration for reconstructed visual attention guidance information. In video synchronous editing, various video expression methods in nonlinear editing system are used to make the visual attention issued by teachers lead the information beyond the expression mode of the scene, so that the audience of distance learning can be accurate and image. Timely sense of visual attention guide information to achieve the purpose of remote dissemination of complete screen information.
【作者单位】：厦门大学信息与网络中心;
【分类号】：G434

【二级参考文献】