License plate recognition method, device and storage medium
A license plate recognition and license plate technology, applied in the field of intelligent transportation, can solve the problems of low recognition accuracy, achieve the effect of avoiding interference, avoiding the influence of character segmentation, and improving accuracy
Active Publication Date: 2022-03-25
HANGZHOU HIKVISION DIGITAL TECH
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[0004] Embodiments of the present invention provide a license plate recognition method, device, and computer-readable storage medium, which can be used to solve the problem of low recognition accuracy of characters and character position information in license plates in the related art
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[0083] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0084] Before explaining the embodiments of the present invention in detail, the application scenarios involved in the embodiments of the present invention are first introduced.
[0085] At present, license plate recognition technology has been widely used in the field of intelligent transportation. In practical applications, image acquisition can be performed by setting up monitoring equipment in many scenes such as bayonet, parking lot, and road, and the license plate information in the image can be recognized to obtain license plate information. Among them, the monitoring equipment usually needs to work in different complex scenarios. Therefore, the quality of the images collected by the monitoring equipment is also affected by the scene f...
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The invention discloses a license plate recognition method, device and computer-readable storage medium, belonging to the technical field of intelligent transportation. The method comprises: obtaining the roughly selected area of the license plate in the image, and extracting feature information in the roughly selected area of the license plate by using a convolutional neural network (CNN), wherein the feature information includes a plurality of feature sequences; characters and the position information of each character; determine the license plate number of the license plate contained in the rough selection area of the license plate based on the determined multiple characters, and determine the position of the corresponding character in the license plate number based on the position information of each character location information. It can be seen that the embodiment of the present invention does not need to segment the rough selection area of the license plate to obtain multiple character areas to identify the license plate, effectively avoiding the influence of scene factors on character segmentation, that is, avoiding the interference of scene factors on license plate recognition , which improves the versatility and accuracy of the license plate recognition method.
Description
technical field [0001] The present invention relates to the technical field of intelligent transportation, and in particular, to a license plate recognition method, a device and a computer-readable storage medium. Background technique [0002] The license plate is the "identity card" of the vehicle, and it is an important identification information that is different from other vehicles. In the current field of intelligent transportation, monitoring equipment can be set up in many scenes such as checkpoints, parking lots or streets, and the image of the license plate containing the vehicle in the scene can be obtained through the monitoring equipment, and then the license plate in the image can be recognized. [0003] In the related art, license plate recognition can be mainly summarized into three steps, namely license plate area detection, character segmentation and character recognition. When the license plate recognition is performed through the above three steps, due to...
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IPC IPC(8): G06V20/62G06N3/04
CPCG06V20/62G06V20/625G06N3/045
Inventor 钱华蔡晓蕙
Owner HANGZHOU HIKVISION DIGITAL TECH