视频摘要:一个可浏览的,可略读格式的信息讲座视频

Amy Pavel, Colorado Reed, Bjoern Hartmann, Maneesh Agrawala
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引用次数: 103

摘要

越来越多的作者在网上发布长篇信息讲座、讲座和远程学习视频。然而,使用当前基于时间轴的视频播放器很难浏览和略读这些视频的内容。视频摘要是一种新的信息视频格式,通过将视频分割成章节结构,并为每个部分提供简短的文本摘要和缩略图,可以浏览和略读。观众可以通过阅读摘要和点击部分来浏览视频中的相应点。我们提供了一组工具来帮助作者使用基于转录的交互来创建这样的摘要。使用我们的工具,作者可以从头开始手动创建视频摘要,或者他们可以通过应用算法和众包技术的组合自动生成摘要,然后根据需要手动改进它。来自首次用户的反馈表明,我们基于转录的创作工具和自动化技术极大地促进了视频摘要的创建。在一项评估性众包研究中,我们发现在较短的观看时间内,视频摘要比基于时间轴或基于转录的视频播放器更支持浏览和略读。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Video digests: a browsable, skimmable format for informational lecture videos
Increasingly, authors are publishing long informational talks, lectures, and distance-learning videos online. However, it is difficult to browse and skim the content of such videos using current timeline-based video players. Video digests are a new format for informational videos that afford browsing and skimming by segmenting videos into a chapter/section structure and providing short text summaries and thumbnails for each section. Viewers can navigate by reading the summaries and clicking on sections to access the corresponding point in the video. We present a set of tools to help authors create such digests using transcript-based interactions. With our tools, authors can manually create a video digest from scratch, or they can automatically generate a digest by applying a combination of algorithmic and crowdsourcing techniques and then manually refine it as needed. Feedback from first-time users suggests that our transcript-based authoring tools and automated techniques greatly facilitate video digest creation. In an evaluative crowdsourced study we find that given a short viewing time, video digests support browsing and skimming better than timeline-based or transcript-based video players.
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