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Tang, A., Greenberg, S. and Fels, S. (2008)
Exploring Video Streams Using Slit-Tear Visualizations. In Proceedings of Advanced Visual Interfaces (AVI’08). (Napoli, Italy), pages 191-198, May 28-30. Includes video, duration 6:20.
Type: Refereed conference.
Earlier version: Report 2007-886-38, December.
Additional materials: video.
DOI: 10.1145/1385569.1385601
Download as: Pdf
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Abstract.
Video slicing – a variant of slit scanning in photography – extracts a scan line from a video frame and successively adds that line to a composite image over time. The composite image becomes a time line, where its visual patterns reflect changes in a particular area of the video stream. We extend this idea of video slicing by allowing users to draw marks anywhere on the source video to capture areas of interest. These marks, which we call slit-tears, are used in place of a scan line, and the resulting composite timeline image provides a much richer visualization of the video data. Depending on how tears are placed, they can accentuate motion, small changes, directional movement, and relational patterns.
Keywords: Information visualization, video analysis, video history, timelines.