Car logo locating and recognizing method and system

A vehicle logo positioning and recognition method technology, which is applied in the traffic control system of road vehicles, traffic control systems, character and pattern recognition, etc., can solve the problems of inability to understand the needs, inability to recognize vehicle logos, and inability to identify specific vehicle models and other issues to achieve the effect of information management

Inactive Publication Date: 2013-05-08
信帧机器人技术(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing vehicle recognition technology generally can only recognize the license plate and the model of the vehicle (such as large, medium and small), but cannot recognize the specif

Method used

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  • Car logo locating and recognizing method and system
  • Car logo locating and recognizing method and system
  • Car logo locating and recognizing method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 of the present invention provides a vehicle logo location recognition method, see figure 1 , the method includes:

[0045] Step S101: collect the sample pictures of various car logos to obtain the car logo template library; adopt the fast algorithm to extract the feature point set of the sample pictures of each car logo in the car logo template library; use the feature point set as training Set, generate support vector machine svm classifier;

[0046] Wherein, the above step S101 is the preparatory work for the positioning and recognition of the vehicle logo. It is necessary to use the fast algorithm to extract the feature point sets of the sample pictures of various car logos in advance, and use the svm classifier to classify these feature point sets;

[0047] Next, the svm classifier formed above is used to identify the vehicle logo, that is,

[0048] The method also includes:

[0049] Step S102: collecting the original image of the vehicle;

[0050] ...

Embodiment 2

[0059] Embodiment 2 of the present invention provides another vehicle logo location recognition method, see figure 2 , the method includes:

[0060] Step 201: collecting sample images of various vehicle logos to obtain a vehicle logo template library;

[0061] Step 202: using the fast algorithm to roughly extract the corner points in the vehicle logo candidate area;

[0062] Step 203: using the Hessian matrix to remove unstable edge points among all the extracted corner points to obtain the set of feature points to be identified;

[0063] Step 204: using the feature point set as a training set to generate a support vector machine svm classifier;

[0064] That is, a support vector machine svm classifier with a set of feature points is generated;

[0065] The above-mentioned steps 201-204 have completed the process of extracting the feature point set of the sample picture of the car logo and generating the svm classifier according to the feature point set, and then using the...

Embodiment 1

[0088] For the first embodiment, the third embodiment of the present invention provides a vehicle logo positioning and recognition system, see image 3 , the system consists of:

[0089] The car logo template library 31 is used to store the sample pictures of various car logos; the svm classifier generation module 32 is used to adopt the fast algorithm to extract the set of feature points of the sample pictures of each car logo in the car logo template library; And take described feature point set as training set, generate support vector machine svm classifier;

[0090] The system also includes:

[0091] Acquisition module 33, is used for collecting the original image of vehicle;

[0092] A vehicle logo positioning module 34, configured to perform morphological preprocessing on the original image, and locate all vehicle logo candidate regions on the image obtained by the morphological preprocessing;

[0093] Vehicle logo recognition module 35, for adopting fast algorithm, e...

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Abstract

The invention belongs to the field of pattern recognition, and particularly relates to a car logo locating and recognizing method and a system. According to the car logo locating and recognizing method and the system, car logos can be recognized. The car logo locating and recognizing method includes the steps: collecting pictures of samples of various car logos, and obtaining a template base of the car logos; adopting a fast algorithm, and extracting out a feature set of the sample picture of each car logo in the template base of the car logos; serving the feature sets as a training set, and generating a support vector machine (SVM) classifier. The method further includes the steps: collecting original images of the car logos; carrying out morphology preprocessing on the original images, and locating a candidate area of the car logos on images obtained through the morphology preprocessing; adopting the fast algorithm, and extracting out a to-be-recognized feature set of the candidate area of the car logos; adopting the SVM classifier, carrying out matching recognition on the to-be-recognized feature set, and serving a car logo which corresponds to a feature set matched with the to-be-recognized feature set as a recognition result.

Description

technical field [0001] The invention relates to the field of pattern recognition, in particular to a method and system for vehicle logo positioning recognition. Background technique [0002] With the development of society and economy, the number of vehicles is gradually increasing, so that the information management of vehicles has become a problem that needs to be paid attention to at present. [0003] Among them, vehicle identification technology is an important means of information management of vehicles. At present, vehicle identification technology is widely used in traffic flow monitoring, such as expressway bayonet toll collection, red light violation monitoring, and community vehicle automatic toll collection system, all of which need to be applied to vehicle identification technology. [0004] However, the existing vehicle recognition technology generally can only recognize the license plate and the model of the vehicle (such as large, medium and small), but canno...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62G08G1/017
Inventor 王海峰王晓萌何小波董博杨宇张凯歌
Owner 信帧机器人技术(北京)有限公司
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