Vehicle overall feature extracting method and vehicle model identifying method
An overall feature and extraction method technology, applied in the field of image processing, can solve problems such as no public solution, vehicle overall feature extraction, etc.
Active Publication Date: 2014-06-18
ZHEJIANG UNIVIEW TECH CO LTD
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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
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[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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The invention provides a vehicle overall feature extracting method and a vehicle model identifying method. The vehicle overall feature extracting method is used for extracting overall features of a target vehicle in an image where the target vehicle exists and includes the following steps that a plate of the target vehicle in the image is positioned, the position of the plate of the target vehicle in the coordinate system is normalized and therefore the position of the plate is identical with the position of a plate of a template vehicle in the coordinate system; geometric correction is carried out on the target vehicle and the coordinate system where the target vehicle exists, the posture of the target vehicle is normalized and the posture of the target vehicle is identical with the posture of the template vehicle; the target vehicle is zoomed, the size of the plate of the target vehicle is normalized and the size of the plate of the target vehicle is identical with the size of the plate of the template vehicle; an outline of a preset zone of the target vehicle is extracted and the designated features of the outline of the preset zone of the target vehicle serve as overall vehicle features. Thus, the vehicle overall feature extracting method and the vehicle model identifying method can provide forceful technical support for identifying the model of the vehicle.
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...
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Inventor 吴参毅
Owner ZHEJIANG UNIVIEW TECH CO LTD