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License number recognition method

A technology of license plate recognition and license plate number, which is applied in the field of license plate number recognition, can solve problems such as multiplication of cost, incompatibility of recognition systems, failure to recognize electric vehicle license plates, etc., and achieve high practical value, high accuracy, and high reliability. Effect

Inactive Publication Date: 2018-02-16
SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the existing recognition system is incompatible or unable to recognize the license plate of electric vehicles, and at the same time, solve the problem of multiplying the cost of developing electric vehicle license plate recognition first

Method used

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  • License number recognition method
  • License number recognition method
  • License number recognition method

Examples

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Embodiment Construction

[0046] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0047] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features that are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0048] Such as figure 1 As shown, the present embodiment discloses a license plate number recognition method, comprising:

[0049] S10: judging the license plate type of the license plate;

[0050] S20: Select a corresponding license plate recognition scheme according to the determined license plate category; the license plate recognition scheme is a Type 92 license plate recognition scheme or a new energy license plate recognition scheme;

[0051] S30: Recognize ...

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Abstract

The invention discloses a license number recognition method. The license number recognition method comprises the following steps: S10, judging the category of a license plate; S20, selecting the corresponding license plate recognition scheme which is a 92-type license plate recognition scheme or a new-energy license plate recognition scheme according to the judged license plate category; S30, recognizing the license number according to the selected license plate recognition scheme, wherein S10 comprises the following steps: emitting projection light to a license plate by a light source; receiving reflected light of the license plate for the projection light; analyzing spectral power distribution of the reflected light; judging the category of the license plate according to distribution oflight waves of all frequency bands in the spectral power distribution. The license number recognition method is simple and high in reliability, and 92-type license plates and new-energy license platescan be judged and recognized automatically.

Description

technical field [0001] The invention relates to the field of license plate recognition, in particular to a license plate number recognition method. Background technique [0002] With the substantial increase in the level of the national economy, people's living standards are also increasing. On the one hand, it is obvious that the number of cars in various regions is growing steadily on the basis of a huge base. [0003] With the increase of the number of cars, the management workload and management difficulty of the cars will increase accordingly, and new requirements will be put forward for the management of the license plate number as the identity mark of the car. Among them, the most common one is Recognition of license plates. [0004] In my country, for traditional fossil fuel vehicles, license plates with 7-digit numbers are used, and uniform regulations have been made on the size, distribution, and characters of license plates. In the prior art, multiple recognitio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06K9/38
CPCG06V20/63G06V10/28G06V20/625
Inventor 孙帝
Owner SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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