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Method for distinguishing parked vehicle from falling object

A technology for throwing objects and vehicles, which is applied in the field of transportation, and can solve problems such as the loss of detection target height information, reduce the accuracy of detection results, etc., and achieve the effect of improving detection accuracy

Inactive Publication Date: 2015-04-08
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When detecting illegal phenomena, video detection technology is mainly based on two-dimensional images. Since illegal acts occur in three-dimensional space, there will be a dimensionality reduction process from three-dimensional to two-dimensional in the processing process, which will lead to detection The loss of target height information reduces the accuracy of detection results

Method used

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  • Method for distinguishing parked vehicle from falling object
  • Method for distinguishing parked vehicle from falling object
  • Method for distinguishing parked vehicle from falling object

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Embodiment 1

[0038] The invention provides a method for distinguishing parked vehicles and thrown objects, the method is used to process the acquired video images, such as figure 1 As shown, the method includes:

[0039] Step 1, performing edge enhancement processing on each frame of the video image, dividing the processed image into multiple regions, and setting a counter and an abnormal mark for each region.

[0040] In implementation, before performing edge enhancement processing on each frame of a video image, it is often necessary to perform a histogram-based linear stretching process on the screen of the video image, and the processed video image has a higher brightness and The contrast is enhanced, the edge details are more prominent, and finally the clarity of the image is significantly improved, which is convenient for subsequent processing. After the stretching process is completed, each frame of video image is extracted by using a simplified first-order differential operator Th...

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Abstract

The invention discloses a method for distinguishing a parked vehicle from a falling object and belongs to the field of traffic. The method comprises the following steps: determining a suspicious region where a parked vehicle or a falling object may occur in a video image, and specifically judging the condition in the suspicious region. According to the method disclosed by the invention, an acquired video image is processed, and a projection area of an object main body corresponding to a track is compared with the projection area of a preset vehicle after the condition that the track of the parked vehicle or the falling object exists in the video image is judged, so the object main body in the video image is a parked vehicle or a falling object is judged, the problem of poor detection accuracy caused by loss of height information of the object during dimensionality reduction of an existing detection technology can be avoided, and the detection accuracy can be improved.

Description

technical field [0001] The invention relates to the traffic field, in particular to a method for distinguishing parked vehicles and thrown objects. Background technique [0002] With the development of the economy, the number of private cars is increasing rapidly. While the number of vehicles is increasing, illegal phenomena such as illegal parking of vehicles and illegal throwing of objects are also increasing, which will lead to traffic accidents. [0003] In the existing technology, the detection of the above-mentioned illegal phenomena mainly includes radar, infrared, ultrasonic, video, etc. Compared with other detection technologies, video detection technology has a wide coverage area, high detection accuracy, large amount of information, and flexible detection. And other characteristics are more and more widely used in the detection field. [0004] In the process of realizing the present invention, the inventor finds that there are at least the following problems in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20
CPCG06T7/223G06T2207/10016G06T2207/20192G06T2207/30232G06T2207/30264
Inventor 崔华孙丽婷宋焕生李钢朱龙生公维宾李怀宇王璇孙士杰
Owner CHANGAN UNIV
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