Answer sheet character string recognition method and device, terminal and computer storage medium

Abstract

The invention provides an answer sheet character string recognition method and device, a terminal and a computer readable storage medium, and the method comprises the steps: carrying out the text recognition of an answer sheet image, and obtaining text content information and text position information; positioning a character string to be identified according to the text content information and the text position information so as to determine an area where the character string is located; and identifying an area where the character string is located based on a deep learning model to obtain thecharacter string. According to the technical scheme, the position information of the target character string in the answer sheet is obtained through the text recognition technology, a positioning block is not needed for positioning, the answer sheet can be compatible with various forms of answer sheets, horizontal projection and vertical projection are conducted on an image area where the targetcharacter string exists. The position of each character in each character string is obtained so as to carry out accurate identification, the anti-interference capability is strong, and the identification rate is high.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to an answer sheet character string identification method, an answer sheet character string identification device, a terminal and a computer-readable storage medium. Background technique [0002] With the rapid development of computers and artificial intelligence, it is gradually applied to many fields of work and life. In the process of education and teaching, examination is an effective way to evaluate teaching results. After an examination is completed, teachers will review a large number of student test papers and conduct a summary analysis of all students after review. Traditional marking and analysis work It will take up a lot of time for teachers, and even reduce the teacher's lesson preparation time, so the related technology of computer intelligent marking has appeared, and this marking method can greatly save teachers' marking time. At present, the existing marking...

AI Technical Summary

Problems solved by technology

If the QR code is blurred, the positioning point is covered or there are strokes around it, it is difficult to recognize;

[0005] 2. The method of judging the position of the examination number based on the identification positioning point is inefficient and susceptible to noise interference, which affects the accuracy of identification

At present, various educational technology companies generally use image processing and pattern recognition methods for answer sheet recognition, and have developed many answer sheet recognition systems, but still use traditional recognition methods, which cannot fundamentally break through the bottleneck of image processing methods. Completely intelligent identification cannot be realized due to automatic processing;

[0006] 3. Examination number identification By filling in the number area of ​​the examination number, the corresponding number is determined by the positioning block. In different areas and different schools, the number of examination numbers is different, which will cause the answer sheet to be not universal

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