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Capture and recognition method for vehicles equipped with license plate anti-photographer

A license plate anti-photography and recognition method technology, applied in the field of capture and recognition, can solve the problem of inability to obtain license plate numbers, and achieve the effect of facilitating real-time detection, reducing the incidence of traffic accidents, and reducing the amount of calculation.

Active Publication Date: 2017-10-27
DALIAN ROILAND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the vehicle with the license plate anti-camera device passes by the electronic police equipment, the photosensitive sensor of the license plate anti-camera device will detect that the brightness of the ambient light suddenly brightens when the electric police flash is turned on, and quickly light up the license plate anti-camera device installed near the license plate. With a flash (the flash is referred to as the anti-photography flash in this article), the license plate has good reflective characteristics. When the anti-photography flash is turned on, the brightness of the license plate and the surrounding area of ​​the license plate will increase rapidly. At this time, the license plate and the vicinity of the license plate will be exposed in the pictures captured by the electronic police camera Excessive, turning into a vast expanse of whiteness, unable to get a recognizable license plate number

Method used

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  • Capture and recognition method for vehicles equipped with license plate anti-photographer
  • Capture and recognition method for vehicles equipped with license plate anti-photographer
  • Capture and recognition method for vehicles equipped with license plate anti-photographer

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, in the present invention, by modifying the electronic police capture software, when a car is detected passing by, the flashlight is turned on, the camera captures the first picture, after the capture, the electric police flashlight is immediately turned off, the camera captures the second picture, and the license plate is used to capture the second picture. The recognition algorithm performs license plate recognition on the first picture. If the license plate number of the vehicle can be recognized in the first picture, it indicates that the vehicle is not equipped with a license plate anti-camera device; if the vehicle license plate is not recognized in the first picture, the The first picture is further analyzed and detected. If there is no overexposed area reaching or exceeding a certain size on the first picture, it means that th...

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Abstract

The invention relates to a capture and recognition method for a vehicle equipped with a license plate anti-photographer, comprising the following steps: when the electronic police detects that a vehicle passes by, firstly control the electric police flashlight to turn on and take a first photo of the vehicle; The vehicle is taken for the second time; the overexposed area is identified on the pictures taken twice; when there is an overexposed area in the picture taken for the first time and there is no overexposed area in the picture taken for the second time, it is considered that the vehicle is equipped with a license plate anti-corrosion system. clapper. The invention solves the problem that the vehicle cannot be punished after the license plate anti-camera device is installed, can well deter traffic violations such as speeding, and reduces the occurrence rate of traffic accidents. Make the electronic police have the function of capturing and detecting and installing the license plate anti-camera device, so as to better crack down on traffic violations and ensure traffic safety.

Description

technical field [0001] The invention relates to a capture and recognition method for a vehicle equipped with a license plate anti-photographer. It belongs to the field of intelligent transportation. It is used to improve the technology of electronic police equipment such as bayonet capture and overspeed capture, and to overcome the interference caused by illegally installed optical anti-capture equipment. Background technique [0002] In order to minimize the occurrence of traffic accidents, the traffic department has continuously strengthened the control of vehicle driving behavior. Electronic police capture equipment such as speeding and running red lights can be seen everywhere, and the traffic management department has also increased the punishment for traffic violations. . [0003] The current electronic police and other capture devices use video to collect evidence. When punishing traffic violations, the vehicle license plate number is used as an important basis for p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/017G06K9/00
CPCG08G1/0175G06V20/584
Inventor 田雨农于维双周秀田陆振波
Owner DALIAN ROILAND SCI & TECH CO LTD