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Frame number image acquisition method and device and a frame number equal-proportion restoration method and device

An acquisition method and a vehicle frame number technology, which is applied in the field of image processing, can solve problems such as low efficiency and unclear frame number restoration, and achieve the effect of improving accuracy, precision and clarity

Pending Publication Date: 2022-02-22
重庆一极科技有限公司
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Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the purpose of this application is to provide a method and device for obtaining a VIN image, a method and a device for equal-proportion restoration of the VIN, to solve the problem of the VIN in the prior art. Unclear and inefficient restoration

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  • Frame number image acquisition method and device and a frame number equal-proportion restoration method and device
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  • Frame number image acquisition method and device and a frame number equal-proportion restoration method and device

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[0074] The implementation of the present application will be described by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification.

[0075] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the application. It is to be understood that other embodiments may be utilized, and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description should not be considered as limiting, And the scope of the embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. Spatially relative terms such as "upper", "lowe...

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Abstract

The invention provides a frame number image acquisition method and device and a frame number equal-proportion restoration method and device. The equal-proportion reduction method for the frame number comprises the following steps: acquiring an image comprising the frame number and a reference object, wherein the reference object comprises a plurality of key points; according to the image coordinates between the reference object key points and the actual physical size, obtaining the corresponding relation between each pixel coordinate and the actual physical size under the first preset resolution; obtaining the measurement size of the reference object according to the corresponding relation and the pixel coordinates of the reference object key points in the image; when an error value between the measurement size and an actual physical size of a reference object is smaller than a preset error threshold value, obtaining a region of interest of the frame number according to position information of the frame number in the image; and obtaining the size to be restored and a second preset resolution, and restoring the frame number according to the actual physical size corresponding to each pixel in the region of interest of the frame number. By means of the method, automatic restoration of the frame number is achieved, the restoration efficiency is improved, and meanwhile the precision is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a method and device for acquiring a VIN image, and a method and device for equal-proportion restoration of a VIN. Background technique [0002] With the development of the economy, more and more families start to buy motor vehicles (cars, motorcycles). At the same time, with the rapid development of logistics, there are more and more trucks, and the management of various motor vehicles is becoming more and more strict. . When managing motor vehicles, it is very important to manage the engine number and frame number of the motor vehicle. [0003] Whether it is the registration of the motor vehicle, the annual inspection or the transfer of ownership, it is necessary to rub the engine number and frame number of the motor vehicle and keep it on file, so that it can be retained by comparison when the next annual inspection or when moving in or moving out Whether t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80G06V10/24G06V10/32G06V20/62
CPCG06T7/80
Inventor 赵鹏伦
Owner 重庆一极科技有限公司
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