The amount of video surveillance cameras and with that the amount of recorded data is enormous. Thus, efficient methods for using and analyzing this data have to be found. In this paper, we propose VideoZoom, an interactive system for summarization, browsing and retrieval of video data which is specifically designed to support a human operator in the video analysis task in the visual surveillance domain. The main contributions of this paper are: ⅰ) a visualization technique for efficient browsing, using an interactive zooming interface to present video summaries on layers of increasing information detail, and ⅱ) a video retrieval component which allows for interactive retrieval employing a sparse representation of video snippets using local features and bag-of-words like signatures. We hereby present the first integrated system for video browsing with integrated video retrieval technology specifically targeted as assistance system for the visual surveillance domain.
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