License plate image correction method, license plate image correction device, and storage medium

A license plate image and license plate technology, which is applied in the field of image processing, can solve the problems of inability to obtain license plate correction results, be greatly affected by noise, and poor correction effects, and achieve image correction, high correction accuracy, and good correction effects.

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  • Abstract
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Problems solved by technology

[0002] Due to the influence of factors such as the image shooting angle or the body posture of the target vehicle that hangs the license plate, the obtained license plate often has a certain angle in each degree of freedom in space, which poses a serious problem to a series of subsequent processes such as license plate recognition, license plate classification, or tracking. a certain degree of difficulty
The license plate correction technology can be divided into two categories: the license plate correction technology based on traditional image processing methods and the license plate correction method based on deep learning, but there are problems that the correction result of the whole license plate cannot be obtained or the correction effect is poor

Method used

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  • License plate image correction method, license plate image correction device, and storage medium
  • License plate image correction method, license plate image correction device, and storage medium
  • License plate image correction method, license plate image correction device, and storage medium

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0022] see figure 1 , figure 1 It is a schematic flow chart of an embodiment of a method for correcting a license plate image provided by the present application, and the method includes:

[0023] Step 11: Based on the image segmentation network, the image to be corrected including the license plate to be processed is processed to obtain the first license plate mask image.

[0024] The image to be corrected is an image of the license plate to be processed th...

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Abstract

The invention discloses a license plate image correction method, a license plate image correction device, and a storage medium. The method comprises the following steps: based on an image segmentation network, processing a to-be-corrected image containing a to-be-processed license plate, and obtaining a first license plate mask image, wherein the image segmentation network comprises an encoder and a decoder, the encoder is used for encoding a to-be-corrected image to obtain a feature map, and the decoder is used for decoding the feature map according to a size of a corrected reference image corresponding to a to-be-processed license plate to obtain the first license plate mask image; based on the first license plate mask image, calculating angular points of a license plate in the to-be-corrected image and an external rectangular frame of the license plate; = correcting the image where the license plate is located based on the external rectangular frame and the angular points to obtain a corrected license plate image. In this way, the license plate correction effect can be improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a license plate image correction method, a license plate image correction device and a storage medium. Background technique [0002] Due to the influence of factors such as the image shooting angle or the body posture of the target vehicle that hangs the license plate, the obtained license plate often has a certain angle in each degree of freedom in space, which poses a serious problem to a series of subsequent processes such as license plate recognition, license plate classification, or tracking. a certain degree of difficulty. The license plate correction technology can be divided into two categories: the license plate correction technology based on traditional image processing methods and the license plate correction method based on deep learning, but there are problems that the correction result of the whole license plate cannot be obtained or the correctio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06K9/34G06K9/40G06K9/46
Inventor 薛佳乐敦婧瑜张湾湾李轶锟江歆霆
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