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A method and device for identifying vehicles with license plates based on traffic checkpoints

A vehicle identification and traffic card technology, which is applied in traffic control systems, character and pattern recognition, road vehicle traffic control systems, etc., can solve the problems of misjudgment as fake vehicles and failure to recognize fake vehicles, etc., to improve The effect of accuracy

Active Publication Date: 2018-06-22
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, due to changes in ambient light at different times, it is likely that the same car will be misjudged as a decked vehicle. In addition, if the decked vehicle and the original vehicle have the same color and the same logo, then the decked vehicle will not be recognized. vehicle

Method used

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  • A method and device for identifying vehicles with license plates based on traffic checkpoints
  • A method and device for identifying vehicles with license plates based on traffic checkpoints

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Embodiment Construction

[0016] In order to make the technical solution of the present invention more clear and understandable, the solution of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0017] figure 1 It is a flowchart of an embodiment of the vehicle identification method based on traffic checkpoints in the present invention. like figure 1 As shown, the following steps 11-15 are included.

[0018] Step 11: Determine the image of each bayonet vehicle as the search object.

[0019] In the prior art, at some important traffic checkpoints, such as expressway toll gates, public security checkpoints, etc., the installed camera device is usually used to take pictures of each passing vehicle, and the captured checkpoints The vehicle image is saved to the database for subsequent retrieval and viewing, and the bayonet vehicle image is the front image of the vehicle.

[0020] In the scheme of the present invention, the recogni...

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PUM

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Abstract

The invention discloses a vehicle identification method and device based on a traffic checkpoint: determine the vehicle image of each checkpoint as the search object; determine whether a vehicle reference image is set; if so, based on the license plate number information, according to the vehicle The reference image and each bayonet vehicle image generate a suspected deck vehicle image pair; if not, based on the license plate number information, the suspected deck vehicle image pair is generated directly according to each bayonet vehicle image; for each suspected deck vehicle image pair, Obtain the texture feature code of each of the images respectively, and calculate the similarity between the two obtained texture feature codes, if the similarity is less than a predetermined threshold, then determine that the vehicles in the suspected deck vehicle image pair are mutually Set of vehicles. Applying the scheme of the present invention can improve the accuracy of the recognition result and the like.

Description

technical field [0001] The invention relates to the field of intelligent analysis, in particular to a traffic checkpoint-based vehicle identification method and device. Background technique [0002] In the prior art, vehicles with license plates are usually identified based on information such as the license plate number, vehicle logo, and body color, but the recognition accuracy of this method is low. For example, due to changes in ambient light at different times, it is likely that the same car will be misjudged as a decked vehicle. In addition, if the decked vehicle and the original vehicle have the same color and the same logo, then the decked vehicle will not be recognized. vehicle. Contents of the invention [0003] In view of this, the present invention provides a traffic checkpoint-based vehicle identification method and device for decked vehicles, which can improve the accuracy of identification results. [0004] In order to achieve the above object, the technic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/017G06T7/40G06T7/90
CPCG08G1/017G06V10/75
Inventor 谢迪张文聪浦世亮
Owner HANGZHOU HIKVISION DIGITAL TECH
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