The invention discloses a public transportation emergency detection method and belongs to the field of intelligent transportation video monitoring. The public transportation emergency detection method comprises the following steps of 1 denoising an original image, dividing an activity range of people in a vehicle, extracting a video image in the activity range and applying an outline deepening frame difference method and a pixel matching method to extract a video foreground region, 2 extracting feature points in the video foreground region and establishing a foreground motion region vector field by means of an optical flow method, and 3 judging whether an emergency occurs in the vehicle according to change of average region kinetic energy and average feature point distance potential energy in the foreground motion region vector field. Compared with the prior art, the public transportation emergency detection method is high in operation efficiency and efficiency and capable of detecting the disorder situation in the vehicle when the emergency occurs.
Public transportation emergency detection method
2015-05-13
Patent
Electronic Resource
English
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