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A vehicle feature extraction method and device

A feature extraction and vehicle feature technology, applied in the field of vehicle feature extraction methods and devices, can solve problems such as low accuracy and efficiency, and achieve the effect of improving accuracy

Active Publication Date: 2021-02-02
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the accuracy rate of detection of basic information such as vehicle license plate and model in bayonet pictures has reached a very high level, but the accuracy rate in the analysis and identification of vehicles suspected of violating regulations such as license plates and vehicle retrieval using image search methods And the efficiency is still relatively low, especially in the case of processing massive data

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  • A vehicle feature extraction method and device
  • A vehicle feature extraction method and device
  • A vehicle feature extraction method and device

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0022] See figure 1 , is a schematic flowchart of a vehicle feature extraction method provided in an embodiment of the present invention, wherein the vehicle feature extraction method can be applied to a video surveillance system, such as figure 1 As shown, the vehicle feature extraction method may include the following steps:

[0023] It should be noted that the execution subject of steps 101 to 105 can be a background server in the video surveillance system, or a processor of the background server, such as a CPU (Center Proc...

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Abstract

The present invention provides a vehicle feature extraction method and device, the method comprising: acquiring a body area image of a target vehicle; determining the window area in the body area image, and performing key point positioning; Carrying out perspective transformation and vehicle alignment processing on the body area image; dividing the processed body area image into a preset number of blocks; wherein, the preset number of blocks includes blocks of various types and sizes, The type and size of each block are determined by the feature type and significance of the markers in the block; feature extraction is performed on the preset number of blocks respectively, and the features of each block are combined into vehicle features. The accuracy of vehicle feature extraction can be improved by applying the embodiments of the present invention.

Description

technical field [0001] The invention relates to the technical field of video monitoring, in particular to a vehicle feature extraction method and device. Background technique [0002] The vehicle bayonet monitoring system plays an irreplaceable role in road traffic management. By accurately capturing each passing vehicle, it can realize the functions of identifying, analyzing and storing the basic information of the vehicle. At present, the accuracy of the detection of basic information such as vehicle license plates and models in bayonet pictures has reached a very high level, but the accuracy rate of the analysis and identification of vehicles suspected of violating regulations such as license plates and vehicle retrieval using the image search method has reached a high level. And the efficiency is still relatively low, especially in the case of processing massive data. Contents of the invention [0003] The invention provides a vehicle feature extraction method and dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/32G06K9/46
CPCG06V10/25G06V10/50G06V2201/08
Inventor 余永龙
Owner ZHEJIANG UNIVIEW TECH CO LTD