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Currently, many multimedia contents are acquired and stored in real time and on different locations. In order to retrieve efficiently some desired information and avoid centralizing all metadata, we propose to compute a metadata summary, i.e., a concise version of the whole metadata, which guides the location of some desired multimedia contents. The(More)
The videos recorded by video surveillance systems represent a key element in a police inquiry. Based on a spatio-temporal query specified by a victim, (e.g., the trajectory of the victim before and after the aggression) the human operators select the cameras that could contain relevant information and analyse the corresponding video contents. This task(More)