High efficiency vehicle detection method

A vehicle detection and high-efficiency technology, applied in the field of intelligent transportation, can solve problems such as inapplicable light changes, achieve the effects of reducing omissions, small amount of calculation, and improving detection accuracy
CN102496276AActive Publication Date: 2012-06-13QINGDAO HISENSE TRANS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO HISENSE TRANS TECH
Publication Date
2012-06-13

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Abstract

The invention discloses a high efficiency vehicle detection method comprising steps of vehicle existing information detection and vehicle moving information detection. More particularly, the vehicle existing information detection comprises the following steps: (11), carrying out statistics on a background image model; (12), calculating an image-background difference graph; (13), carrying out binarization processing on the image-background difference graph; and (14), determining whether there is a vehicle or not. Moreover, the vehicle moving information detection comprises the following steps: (21), carrying out difference on two adjacent frames of images and extracting edge points for the difference image; (22), carrying out statistics on a gradient direction histogram of the edge points of the difference image; and (23), determining whether there is a vehicle in a moving state. According to the invention, the provided vehicle detection method has high detection precision and a good detection effect.
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Description

technical field

[0001] The invention relates to a vehicle detection method and belongs to the technical field of intelligent transportation. Background technique

[0002] In the field of intelligent transportation technology, effective extraction of vehicle motion and presence information is a very important link in intelligent transportation. At present, the main vehicle detection methods are: the invention with the publication number CN101226691 and the invention name "Vehicle Counting Method Based on Video Image" The patent uses basic background modeling technology to detect foreground target points and estimate vehicle information by counting the gray value probability distribution of pixels, and realizes vehicle counting using computer vision technology. During dawn and evening, when the day-night transition and light changes are more obvious, due to the sharp drop in image brightness and contrast, it is easy to miss the target and the detection effect is not ideal. ...

Claims

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