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Vehicle logo location method based on radiator grid background ablation

A vehicle logo positioning and radiator technology, which is applied in the field of image processing and vehicle logo positioning, can solve problems such as affecting the accuracy of car logo positioning and recognition, reducing the efficiency of car logo positioning and recognition, and being difficult to meet real-time positioning, so as to achieve complete retention and positioning. High-accuracy, fast-processing effects

Active Publication Date: 2016-07-13
SUN YAT SEN UNIV
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AI Technical Summary

Problems solved by technology

However, under the influence of vehicle types and lighting conditions, the above-mentioned existing commonly used methods are difficult to effectively eliminate the background grid of the car logo, so this greatly affects the accuracy of car logo positioning and recognition
At the same time, the above-mentioned existing commonly used vehicle logo positioning and recognition methods have high computational complexity, so this will greatly reduce the efficiency of vehicle logo positioning and recognition, making it difficult to meet the needs of real-time positioning

Method used

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  • Vehicle logo location method based on radiator grid background ablation
  • Vehicle logo location method based on radiator grid background ablation
  • Vehicle logo location method based on radiator grid background ablation

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specific Embodiment

[0098] Such as figure 2 As shown, a car logo positioning method based on radiator grid background ablation, which specifically includes:

[0099] S1. Obtain the original image of the vehicle;

[0100] S2. Obtain the license plate position information from the original image of the vehicle;

[0101] S3. According to the obtained license plate position information and the spatial structure relationship between the license plate and the vehicle logo, the original image of the vehicle is used to locate the candidate area of ​​the vehicle logo;

[0102] In this embodiment, the expression of the spatial structure relationship between the license plate and the vehicle logo is as follows:

[0103] x left =x left

[0104] x right =x right

[0105] Y dowm =y up -b

[0106] Y up =y up -a(y dowm -y up )

[0107] where x left 、x right 、y up 、y down Represent the left, right, upper and lower boundaries of the license plate, X left 、X right , Yup , Y down respectively...

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Abstract

The invention discloses a vehicle logo location method based on radiator grid background ablation, comprising performing vehicle logo coarse location on a vehicle original image; determining the background in a vehicle logo coarse location image is a no-grid background or a grid background; if a grid background, classifying vehicle logo background textures in the vehicle logo coarse location image, employing an algorithm corresponding to a vehicle logo background texture type to eliminate the vehicle logo grid background in the vehicle logo coarse location image, determining vehicle logo physical characteristics of the vehicle logo coarse location image, and realizing final location of a vehicle logo according to a determination result; and if a no-grid background, determining vehicle logo physical characteristics of the vehicle logo coarse location image, and realizing final location of a vehicle logo according to a determination result. The vehicle logo location method possesses the advantages of low complexity, fast processing speed, high location accuracy, etc., and can be widely applied to the vehicle logo location field.

Description

technical field [0001] The invention relates to image processing and vehicle logo positioning technology, in particular to a vehicle logo positioning method based on radiator grid background ablation. Background technique [0002] The location recognition system of the vehicle logo is one of the important components of the intelligent transportation system, and it has a wide range of applications in illegal parking, vehicle false license plate detection, and illegal vehicle escape. At present, the vehicle logo positioning and recognition methods commonly used in the vehicle logo positioning and recognition system include edge detection method, background blur method and background template matching method. However, under the influence of vehicle types and lighting conditions, it is difficult for the above-mentioned existing commonly used methods to effectively eliminate the background grid of the vehicle logo, so this greatly affects the accuracy of the positioning and recog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06K9/62G06K9/00
CPCG06V20/54G06V10/44G06V2201/08G06V2201/07G06F18/24
Inventor 李熙莹吕硕袁敏贤江倩殷李发文
Owner SUN YAT SEN UNIV
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