Method and apparatus for extracting surveillance recording videos
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United States of America Patent
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Aug 15, 2017
Grant Date -
Nov 3, 2016
app pub date -
Aug 13, 2014
filing date -
Jan 3, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to the field of video surveillance. Disclosed are a method and device for extracting surveillance record videos. In the present invention, the method for extracting surveillance record videos comprises the following steps: acquiring and storing lens viewsheds of cameras and an irradiation time period corresponding to each lens viewshed; extracting lens viewsheds corresponding to irradiation time periods that have intersection relationships with a query time period; calculating intersection relationships between the extracted lens viewsheds and a target location; obtaining a set of cameras corresponding to lens viewsheds that have intersection relationships with the target location; and extracting videos captured by the cameras according to irradiation time periods of the cameras in the camera set. Cameras relevant to the target can be found through intersection calculation performed on a designated target location in a designated time period of the user and selected camera viewsheds, so as to directly extract from the relevant cameras videos meeting conditions and useful for the practical application, thereby reducing the labor and time consumed in manual checking of video records.
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