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Vehicle overall feature extraction method and vehicle model recognition method

A technology of overall features and extraction methods, which is applied in the field of image processing and can solve problems such as no public solutions and overall vehicle feature extraction.

Active Publication Date: 2017-11-03
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing electric police and checkpoints have the function of license plate recognition for the captured vehicle pictures, but how to extract the overall characteristics of the vehicle, there is no good solution disclosed in the prior art

Method used

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  • Vehicle overall feature extraction method and vehicle model recognition method
  • Vehicle overall feature extraction method and vehicle model recognition method
  • Vehicle overall feature extraction method and vehicle model recognition method

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] In this embodiment, a method for extracting the overall feature of the vehicle is firstly provided, which is used in applications such as electric police and checkpoints, and is used to extract the overall feature of the target vehicle from the image where the target vehicle is located, and then can be compared with the preset template vehicle (i.e. Compare the o...

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Abstract

The invention provides a vehicle overall feature extraction method and a vehicle model identification method. The overall feature extraction method of the vehicle is used to extract the overall features of the target vehicle from the image where the target vehicle is located; the method includes: locating the license plate of the target vehicle in the image, and normalizing the position of the license plate of the target vehicle in the coordinate system, Make it consistent with the position of the license plate of the template vehicle in the coordinate system; perform geometric correction on the target vehicle and its coordinate system, and normalize the attitude of the target vehicle to make it consistent with the attitude of the template vehicle; scale the target vehicle, Normalizing the size of the license plate of the target vehicle to make it consistent with the size of the license plate of the template vehicle; extracting the outline of the preset area of ​​the target vehicle, and using the specified features of the outline of the preset area of ​​the target vehicle as the overall feature of the vehicle. Therefore, the present invention can provide powerful technical support for vehicle model identification.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a vehicle overall feature extraction method and a vehicle model identification method. Background technique [0002] In recent years, with the rapid development of computer and Internet technology, the number of various motor vehicles has increased rapidly, and various types of information, including traffic-related information, have shown an explosive growth trend. In order to be able to manage these information more safely and efficiently, intelligent transportation system came into being. Intelligent transportation systems can play a powerful role in toll checkpoints, parking lots, and criminal tracking. [0003] The vehicle information collected in the intelligent transportation system includes license plate number, vehicle color, vehicle model, etc. Among them, vehicle model identification plays a decisive role in vehicle road monitoring and is an indispensable par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/46G06K9/00
Inventor 吴参毅
Owner ZHEJIANG UNIVIEW TECH CO LTD
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