Capture and recognition method of vehicle provided with license plate anti-photographing device

Abstract

The invention relates to a capture and recognition method of a vehicle provided with a license plate anti-photographing device. The method includes the following steps that when electronic police detect that a vehicle passes, an electric alarm flashlight is firstly controlled to be turned on and to perform first-time photographing on the vehicle for the first time; after the electric alarm flashlight is turned off, the vehicle is photographed for the second time; overexposure regions of pictures taken during the two times are recognized; when the picture taken at the first time has an overexposure region and the picture taken at the second time does not have an overexposure region, it is thought that the vehicle is provided with the license plate anti-photographing device. The method solves the problem that the vehicle cannot be punished after being provided with the license plate anti-photographing device, traffic violation behaviors such as overspeed can be well frightened, and the traffic accident rate is reduced. The electronic police have the functions of snapshot and detection of the installed license plate anti-photographing device, the traffic violation behaviors can be better cracked down, and traffic safety is guaranteed.

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...

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

Images