Motor vehicle license plate recognition method and system based on infrared imaging, medium and terminal
A technology of infrared imaging and recognition methods, applied in character and pattern recognition, computer parts, instruments, etc., can solve the problems of capturing, affecting imaging, affecting road traffic safety, etc., and achieve the effect of avoiding harm
Inactive Publication Date: 2020-12-15
重庆紫光华山智安科技有限公司
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Problems solved by technology
[0003] However, the bayonet supplementary light will also bring many problems. On the one hand, the light of the driving car will affect the capture. If the installation angle is not proper, it is easy to make the photos taken either black or black. White, which greatly affects imaging; on the other hand, if the brightness of the fill light is not adjusted properly, the driver will easily produce glare under the strong visual nerve stimulation, and some drivers who are overtired or myopia or astigmatism may even Temporary blindness occurs, which is extremely prone to traffic accidents and affects road traffic safety
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[0045] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0046] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...
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The invention provides a motor vehicle license plate recognition method and system based on infrared imaging, a medium and a terminal. The method comprises the steps: presetting a heat radiation markused for absorbing heat of an adjacent area in a motor vehicle license plate area; collecting infrared image information in the target road area, and obtaining one or more candidate areas; presettingan infrared image designated area, and comparing the position of the candidate area with the infrared image designated area to obtain a motor vehicle license plate image to be recognized; and obtaining a motor vehicle license plate recognition result according to the vertical projection of the to-be-recognized motor vehicle license plate image. Whether a target exists in the motor vehicle licenseplate target image or not is determined through infrared imaging, the target fusion image of the vehicle and the motor vehicle license plate containing the spectral characteristics, the texture characteristics, the shape characteristics and the spatial relation characteristics is generated, and harm caused by a night road snapshot light supplementing lamp is effectively avoided.
Description
technical field [0001] The present invention relates to the fields of traffic and computer applications, in particular to a method, system, medium and terminal for identifying motor vehicle license plates based on infrared imaging. Background technique [0002] With the continuous development of image recognition technology, license plate recognition has been widely used in highway vehicle management. Through license plate recognition technology, the moving license plate can be extracted and recognized from the complex background. Due to the light, the high-definition camera is capturing It is not easy to take a clear picture of the license plate during the high-speed moving license plate process. Therefore, high-intensity fill light effects are required at night, and road bayonet fill lights need to be set in the monitoring system of electronic police and high-definition bayonets to capture photos. For high-definition license plate photos, xenon flash is usually used to com...
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IPC IPC(8): G06K9/32G06K9/34G06K9/46
CPCG06V20/62G06V30/153G06V10/507G06V20/625
Inventor 刘平平
Owner 重庆紫光华山智安科技有限公司