Vehicle identification code identification method and device and computer equipment

A vehicle identification code and identification method technology, which is applied in the field of image intelligent identification, can solve the problems of low metal VIN identification rate, difficulty in automatic identification, and difficulty in ensuring accuracy, so as to achieve the effect of improving identification accuracy and solving low identification rate

Pending Publication Date: 2022-04-08
奇酷软件(深圳)有限公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, because metal VIN has the same text and background color, it is prone to environmental reflections and other problems, so the recognition rate of metal VIN is low, it is difficult to guarantee the accuracy, and it is difficult to do automatic recognition on the production line

Method used

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  • Vehicle identification code identification method and device and computer equipment
  • Vehicle identification code identification method and device and computer equipment
  • Vehicle identification code identification method and device and computer equipment

Examples

Experimental program
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no. 1 example

[0024] The first embodiment of the present invention specifically includes the following steps:

[0025] Step 101 , use a 3D camera to take pictures of the VIN area to obtain a 2D VIN area image and corresponding depth information. The 3D camera in the embodiment of the present invention can be a professional 3D camera from KEYENCE, which can perform 3D detection with no dead angle and high precision on the entire field of view, so as to obtain 2D images and depth information in the VIN area. Keyence's professional 3D camera has a 9.44 million-pixel CMOS camera element with a large field of view and high resolution, an internal parallel processing sensor head that can realize high-speed online detection, and a large-aperture telecentric that can realize high-precision detection in actual size Lens and a four-way RGB projector that captures the entire field of view without blind spots.

[0026] The above-mentioned depth information is the distance between each pixel point in t...

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PUM

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Abstract

The invention provides a vehicle identification code identification method and device and computer equipment, and the method comprises the following steps: photographing a vehicle identification code region through a 3D camera, and obtaining a 2D vehicle identification code region image and corresponding depth information; converting the 2D vehicle identification code area image into a vehicle identification code area image based on the depth information by using the depth information; and identifying the vehicle identification code area image based on the depth information to obtain the vehicle identification code. The method has the beneficial effects that the vehicle identification code is accurately identified and extracted through the depth information, so that the identification accuracy of the vehicle identification code is improved, and the problem of low identification rate caused by light reflection, color and the like in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of image intelligent recognition, in particular to a recognition method, device and computer equipment of a vehicle identification code. Background technique [0002] Vehicle Identification Number (VIN) represents the unique identity of a car and is indispensable in many aspects such as car retail, car maintenance, and car production. In order to improve production efficiency and provide intelligent management for automobile production, it is necessary to accurately obtain the VIN of the automobile. Some manufacturers prefer to use metal VIN, because metal VIN can withstand high temperature, electrophoresis, pickling and phosphating treatment, and there will be no unrecognizable problems after treatment. In the prior art, a pure 2D image processing method is generally used for metal VIN acquisition and identification. However, because metal VIN has the same text and background color, it is prone to environ...

Claims

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Application Information

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IPC IPC(8): G06V20/62G06V10/74G06V10/82G06N3/04G06N3/08H04N13/271
Inventor 林楚然王福泉程力行袁振华贾东风
Owner 奇酷软件(深圳)有限公司
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