METHOD OF DETECTING MOVING VEHICLE Russian patent published in 2005 - IPC

FIELD: measuring engineering.

SUBSTANCE: method comprises obtaining frames, calculating differences between the frames, binarization by threshold, morphological operations, and calculating the Sable operator for determining the boundaries of the object. The first frame is used as the background. The background in the subsequent frames is corrected from the formula proposed, the difference between the current frame and background is determined, and brightness histogram is obtained throughout the image. After smoothing, a maximum is determined in the first half brightness histogram, and the mean of the series of nondecreasing nonzero brightness values in the direction of brightness decrease is adopted as the threshold for binarization. The difference is checked to detect the objects, the undistinguishable objects are clarified, and rectangles are formed, which describe the position of a vehicle. The co-ordinates of the rectangles are assumed to be the co-ordinates of vehicles in the frame .

EFFECT: enhanced accuracy of detecting.

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