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Motor vehicle license plate synthetic data generation method

A technology for synthesizing data and motor vehicles, applied in the field of intelligent transportation, can solve the problems of incomplete coverage, small amount of data in the license plate data set, inaccurate data labeling, etc., to improve collection and generation efficiency, high degree of authenticity, and reduce differences Effect

Active Publication Date: 2019-11-26
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

[0008] Problems solved by the technology of the present invention: In order to solve the problems of small amount of data, inaccurate data labeling, and incomplete coverage of license plate data sets currently used for deep learning training, a method for generating synthetic data of motor vehicle license plates is provided to obtain more comprehensive coverage data; reduces the discrepancy between synthetic and real image domains

Method used

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  • Motor vehicle license plate synthetic data generation method
  • Motor vehicle license plate synthetic data generation method
  • Motor vehicle license plate synthetic data generation method

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0046] First the nouns appearing in the present invention are explained:

[0047] License plate data: Indicates the components of the license plate data set, generally represented by images, and sometimes refers to the scene containing the license plate;

[0048] License plate image data: Indicates the license plate data in the form of images, focusing on images;

[0049] License plate data content: Indicates the content of the license plate data, including characters on the license plate, base plate, vehicle type, and light source type;

[0050] Synthetic license plate data: Indicates artificially synthesized license plate data.

[0051] Such as figure 1 As shown, the present invention provides a method for generating synthetic data of a motor vehicle license plate as follows: first, carry out highly simulated three-dimensional modeli...

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Abstract

The invention relates to a motor vehicle license plate synthetic data generation method, which comprises the following steps: firstly, obtaining a license plate font from an official public specification file and modeling to enable the synthetic license plate data to be close to the condition of a real license plate; secondly, utilizing a virtual engine to construct a scene, carrying out omnibearing rendering, generating annotations automatically, and improving the collection and generation efficiency of a data set; thirdly, setting diversified license plate generation conditions in the aspects of weather, illumination, distance, angle and the like, and obtaining data with more comprehensive coverage; and finally, performing style migration on the generated synthetic license plate data byusing a style migration technology, so that the difference between an artificially synthesized image and a real image domain is reduced.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and in particular relates to a method for generating synthetic data of motor vehicle license plates, which can be applied to the detection and recognition of license plates in intelligent transportation systems. Background technique [0002] With the development of video surveillance technology and deep learning technology, the intelligent transportation system has become the development direction of the future transportation system, which can alleviate the increasing urban traffic congestion, reduce traffic violations and vicious traffic accidents, and provide a solution for various traffic accidents and The post-processing of personal and property safety provides strong evidence. In this process, the license plate number plays a vital role as the unique identity of the motor vehicle, so the detection and recognition of the license plate is an important part of the intelligent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T15/00G06T15/50G06K9/32G06K9/34G06N3/04G06N3/08
CPCG06T17/00G06T15/005G06T15/506G06N3/084G06V20/63G06V10/267G06V20/625G06N3/045
Inventor 王子磊靳路康
Owner UNIV OF SCI & TECH OF CHINA
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