| 摘要 |
Video systems are widely used in the field of surveillance of buildings, traffic, private homes, supermarkets and the like. For some applications it is useful to save the video information for a later access or analysis. As the saved data volume increases with the number of video cameras of a video system and the recorded time there is a need for video databases, which allow a fast searching for relevant video information. A method for searching image information comprising the steps of: extracting a trajectory of an interesting object in a picture frame sequence, whereby the trajectory is represented by a first set of location points in the picture frames, pre- processing the extracted trajectory to a pre-processed trajectory by applying a spatial correlation filter algorithm, which reduces the number of location points, whereby the pre-processed trajectory is represented by a second set of location points in the picture frames, storing the pre-processed trajectory in a database and applying search queries on the pre-processed trajectory data of the database and a respective software program is proposed.
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