Video digests

Abstract

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.

Soloist: Generating Mixed-Initiative Tutorials from Existing Guitar Instructional Videos Through Audio Processing

“…Interactive video tutorials have been studied intensively for various domains, such as software learning [1,4,11,23,24,29,39,49,53] or physical activity [12,25,38]. Prior work has investigated both the facilitation for authors to generate interactive video tutorials [11,12,25,51] and for users to effectively follow the video instructions [1,24,53]. Although useful, video tutorials are hard to navigate [1,33,51].…”

“…Prior work has investigated both the facilitation for authors to generate interactive video tutorials [11,12,25,51] and for users to effectively follow the video instructions [1,24,53]. Although useful, video tutorials are hard to navigate [1,33,51]. Prior work has leveraged video segmentation to split an existing video into conceptual chunks to help people search for information [1,11,12,51].…”

Graphic Novel Subtitles: Requirement Elicitation and System Implementation

“…Keyframes can be used to create a series of representative images that relate to certain points in a video and allow for more efficient browsing or scrubbing [6]. Transcript-based summarisation involves segmenting videos into sections and providing short text summaries and thumbnails [29]. Transcript-based summarisation is commonly used alongside video lectures where clear sections can be identified.…”

Automatic Transformation of a Video Using Multimodal Information for an Engaging Exploration Experience

“…Merkt and Schwan [24] provide table of content style links to navigate to different sections of a video. This idea is extended by Pavel et al, in their study authors use a chapter/section structure to provide a skimmable summary and thumbnail of a video segment to a user [25]. Similarly, Meixner and Gold [26] design and evaluate an approach to create a table of content structure to non-linearly navigate a video for smart-phones and tablet devices.…”