Immersive Exploration of Video Content Trees Christoph Trompler, Knut Manske, and Max M hlh user Telecooperation Division, University of Linz Altenberger Str. In some domains, daily incoming raw material exceeds a hundred hours in length. One must be able to quickly find a suitable video sequence or have customers inspect offered material in a timely fashion. In ordinary business the trend is to record meetings and presentations on video for later referral. Fast content summaries of recordings and quick access to desired passages during later inspection are in demand.
Raw video is considered ill-structured data and sequential media.
Fast browsing of video data is therefore a necessity. Digital video has the advantage of random access capabilities, allowing to extract single frames in a non-continuous manner. Several attempts have been made to support video browsing by displaying more than one frame at once, mapping the temporal to the spatial domain. These include video magnifying tools, automatic storyboard generation or visualisation of a video sequence as a three dimensional structure. Ordinary interaction methods and display possibilities proved to limit browsing efficiency.