License plate number identification method, device and equipment and readable storage medium
A technology of license plate number and recognition method, which is applied in the field of artificial intelligence, can solve problems affecting the recognition effect, complexity, and angle deviation of the license plate image, and achieve the effect of improving the recognition accuracy
Pending Publication Date: 2022-07-29
FENGHUO COMM SCI & TECH CO LTD +1
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In this way, for different types of license plates (such as variable-length license plates, single-line license plates, and double-line license plates), different neural network models need to be trained to recognize different types of license plat
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[0058] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0059] In a first aspect, an embodiment of the present invention provides a license plate number recognition device. The license plate number recognition device may be a personal computer (personal computer, PC), a notebook computer, a server, and other devices with data processing functions.
[0060] refer to figure 1 , figure 1It is a schematic diagram of the hardware structure of the license plate number recognition device involved in the solution of the embodiment of the present invention. In this embodiment of the present invention, the license plate number recognition device may include a processor 1001 (eg, a central processing unit, Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used...
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The invention provides a license plate number identification method, apparatus and device, and a readable storage medium. The method comprises the following steps: preprocessing a to-be-recognized license plate image to obtain a first image; performing affine transformation on the first image to obtain a second image; performing feature extraction on the second image to obtain a first image feature map; performing dimension reduction processing on the first image feature map to obtain a second image feature map; the second image feature map is input into a plurality of classifiers, the license plate number is obtained according to output results of the classifiers, and different classifiers are used for predicting characters in different character areas in the second image feature map. According to the invention, the license plate number identification accuracy is improved; and different types of license plate numbers can be identified through the same process.
Description
technical field [0001] The present invention relates to the technical field of artificial intelligence, and in particular, to a method, device, device and readable storage medium for identifying a license plate number. Background technique [0002] License plate number recognition technology is a technology that automatically captures license plate images from complex backgrounds and recognizes license plate numbers. This technology has been widely used in parking lot import and export management systems, highway vehicle management systems and other systems. [0003] The common license plate number recognition technology is to train a neural network model through license plate sample images, and then recognize the license plate number in the license plate image to be recognized based on the trained neural network model. In this way, different types of license plates (such as indeterminate length license plates, single-lane license plates, and double-lane license plates) need...
Claims
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Login to View More IPC IPC(8): G06V10/20G06V10/40G06V10/764G06V10/774G06K9/62G06N3/04
CPCG06N3/045G06F18/24G06F18/214
Inventor 梁奔香
Owner FENGHUO COMM SCI & TECH CO LTD