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Information positioning method in identity card image

A technology of information location and ID card, which is applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems that names and ID cards are easy to be stolen, the accuracy of recognition fluctuates greatly, and there is no image data, etc., to achieve Reduce the effect of partial image loss, suppress noise generation, and reduce image distortion

Inactive Publication Date: 2018-01-30
花生米浙江数据信息服务股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) User manual input is required, and the user experience is poor
[0004] (2) Names and ID cards are easy to be stolen, manual filling has a low threshold for fraudulent behavior, and there is no image data for reference in subsequent investigations
However, the robustness of this recognition method is poor, and its recognition accuracy fluctuates greatly under the condition of poor image acquisition

Method used

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  • Information positioning method in identity card image
  • Information positioning method in identity card image

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Experimental program
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Embodiment Construction

[0055] A method for locating information in an ID card image, comprising the following steps:

[0056] A. Get the ID card image;

[0057] B. Perform grayscale processing on the ID card image;

[0058] C. Sharpen the ID card image;

[0059] D. Locate the ID number;

[0060] E. Locate other information blocks on the image of the ID card.

[0061] In step B, the grayscale processing of the ID card image is carried out using the following formula,

[0062]

[0063] In step C, performing sharpening processing on the ID card image includes the following steps,

[0064] C1. Check the validity of the image;

[0065] C2, using the Butterworth high-pass filter and the Gaussian low-pass filter to filter the image respectively, and superimposing the processed images;

[0066] C3. Use the original image to subtract the image after filtering using a Gaussian low-pass filter, compare the obtained difference image with the image after filtering using a Butterworth high-pass filter, and...

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Abstract

The invention discloses an information positioning method in an identity card image. The method comprises the following steps of A, acquiring the identity card image; B, carrying out gray scale processing on the identity card image; C, carrying out sharpening processing on the identity card image; D, positioning an identity card; and E, positioning other information blocks in the identity card image. By using the method, disadvantages in the prior art can be improved. Robustness of an identification method is increased.

Description

technical field [0001] The invention relates to the technical field of image processing and pattern recognition, in particular to a method for locating information in an ID card image. Background technique [0002] As the most important document to prove personal identity information, ID card plays a vital role in the process of personal identity verification. In the existing service process, the user needs to manually enter the name and ID number. This method has two disadvantages: [0003] (1) The user needs to manually input, and the user experience is poor. [0004] (2) Names and ID cards are easy to be stolen. Manual filling has a low threshold for fraudulent activities, and there is no image data for reference in subsequent investigations. [0005] Therefore, automatic recognition of the ID card image and extraction of the information will help smooth the service process. At the same time, the possibility of the identity card itself being stolen is very low, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32
Inventor 刘龙周玉张晖
Owner 花生米浙江数据信息服务股份有限公司
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