Spatial Browsing for Video Databases
Time-series description data concerning a camera are expected to be automatically generated by various sensors in the near future, such as a camera’s time-series positions, directions and zoom ratios so as to provide a rich environment for retrieving and browsing video data spatially. We also have used real-time 3D CG (three dimensional computer graphics) for interfaces to browse videos in a virtual space corresponding to an existent space in the real world. Cameras’ movement or video sequences are represented as 3D icons in a virtual space. If we click one of the 3D icons, the corresponding video sequence will be replayed in a virtual space. This paper presents a basic principle of the 3D spatial hypermedia for video data browsing and reports some demonstrations of our prototype system.
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