Running sensing method and system
AssigneeS-1 Corporation
InventorsMinkook CHO, Dong Sung LEE
Life of this patent
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Abstract
Disclosed are a method and a system for detecting running. The system for detecting running detects a moving object in an input image and detects a foreground edge of the object. Further, the system for detecting running uses the foreground edge to extract a foot-print image coordinate and extract a head coordinate of the object and uses the foot-print image coordinate, a titled angle of the camera, and an installation height of the camera to acquire a foot-print real coordinate. Here, the system for detecting running uses the foot-print real coordinate of the object and the height of the object to determine whether the object runs.
Claims19
A system for detecting running, comprising:
- an object detector detecting a moving object in an image photographed by a camera;
- a foreground edge detector detecting a foreground edge of the object;
- a foot-print and head coordinate extractor using the foreground edge to extract a foot-print image coordinate and extract a head coordinate that is a coordinate for a head part of the object;
- a camera installation angle calculator calculating a tilt angle of the installed camera;
- a coordinate converter using the foot-print image coordinate, the angle, and an installation height of the camera to acquire a foot-print real coordinate that is a coordinate where the object is spaced apart from the camera;
- a height extractor calculating a height of the object;
- and
- a running condition determinator using the foot-print real coordinate and the height of the object to determine whether the object runs.
A method for detecting running of an object using an image photographed by a camera in a system for detecting running, comprising:
- detecting a moving object in the image;
- detecting a foreground edge of the object;
- extracting a foot-print image coordinate using the foreground edge;
- extracting a head coordinate that is a coordinate for a head part of the object using the foreground edge;
- calculating a tilt angle of the installed camera;
- acquiring a foot-print real coordinate that is a coordinate where the object is spaced apart from the camera using the foot-print image coordinate, the angle, and an installation height of the camera;
- calculating a height of the object;
- and
- determining whether the object runs using the foot-print real coordinate and the height of the object.
Dependencies are inferred from the claim text.