An Algorithm for ID Number Recognition in Complex Background

Abstract

The invention discloses an ID card number recognition algorithm under complex backgrounds. The specific steps of the algorithm are as follows: S1: use an evaluation algorithm based on statistical brightness information to locate the position of the ID card in a complex image, S2: use a straight line in the center of the area to simulate The combination algorithm locates the location of the ID card number to achieve character segmentation. S3: Propose a digital character error segmentation correction algorithm. S4: Use the standard font library to generate digital character samples. The invention can effectively locate the position of the ID card in the complex image, and complete the identification of the ID card number, and then locate the position of the ID card number on the ID card through the straight line fitting algorithm of the area center, and realize character segmentation, and finally generate the ID card through the sample The algorithm generates a large number of random samples of different scales, and uses the generated random samples to train a deep convolutional neural network to realize the identification of ID card numbers.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to an ID number recognition algorithm under a complex background. Background technique [0002] With the popularization of the Internet, many service companies have realized the networkization of traditional counter business. In the network of counter business, it is of great significance to automatically locate the position of the certificate in the image and accurately identify the certificate number. [0003] ID cards are the most commonly used documents in daily life. It is of great practical value to quickly and accurately locate and identify ID card numbers in complex images. The current technology for ID card identification mainly faces the following two problems: [0004] One is how to quickly locate the location of the ID card from complex images. There are more interference information in the image under the complex background, such as the environment information ...

AI Technical Summary

Problems solved by technology

There are more interference information in the image under the complex background, such as the environment information around the ID card, the person holding the ID card, and other information on the ID card except the ID number. big impact

[0005] The second is how to identify low-resolution and blurred numbers

In the process of photographing the ID card, the identification of the ID card number is challenged due to factors such as illumination, scale, tilt angle, and flipping, especially at low resolutions, where the characters of the ID card number are blurred, how to be accurate and efficient The identification of ID numbers is still a huge challenge

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