Automatic examination paper marking method for examination papers

Abstract

The invention relates to an automatic examination paper marking method for examination papers. The method comprises the following steps that S1. images of the examination papers are acquired, extraction and identification of examination question mark points, option mark points, answer mark points and image cutting mark points are performed on the images, the identified examination question mark points are ordered, and the answer mark points are answer boxes filled by examinees; S2, the examination question mark points and the option mark points correlated to the examination question mark points are ordered, distance between the answer mark points correlated to the examination question mark points and all the correlated option mark points is calculated, the option mark points which are minimum in distance and meet the design proportion are answers of the examines, the ordered numbers of the option mark points and standard answers are compared, and correctness of the answers of the examinees is judged according to the comparison results; and S3. after the image cutting mark points are identified, the images are cut and subjective questions are marked according to the cut images. The invention provides a method that all the examination questions are answered on the examination papers, the subjective questions are automatically marked and the subjective questions are automatically cut.

Description

technical field [0001] The invention relates to the field of automated examinations, in particular to an automatic examination paper marking method. Background technique [0002] The current automatic identification technology for test papers is mainly for automatic identification of answer sheets. Although this method saves the time of marking and improves the accuracy of marking, it also has certain problems: waste of paper, and because candidates need to paint on the answer sheets , so it takes extra time, and it is easy for candidates to paint the answer in the wrong place. [0003] In recent years, when grading subjective questions in large-scale exams, the images of subjective question answer sheets are mainly used for multi-person online grading. This method can reduce grading errors and shorten grading time, but there are also the above problems in practical applications. Since the marking teacher can only see the answers in the limited area of ​​the answer sheet, t...

AI Technical Summary

Problems solved by technology

[0002] The current automatic identification technology for test papers is mainly for automatic identification of answer sheets. Although this method saves the time of marking and improves the accuracy of marking, it also has certain problems: waste of paper, and because candidates need to paint on the answer sheets , so it takes extra time, and it is easy for the candidate to paint the answer in the wrong place

[0003] In recent years, when grading subjective questions in large-scale exams, the images of subjective question answer sheets are mainly used for multi-person online grading. This method can reduce grading errors and shorten grading time, but there are also the above problems in practical applications. Since the marking teacher can only see the answers in the limited area of ​​the answer sheet, the marking teacher cannot see the complete answer when the candidate fills in the wrong place of the answer or answers out of the limited area

[0004] At this stage, there are relatively few studies on automatic marking methods for non-answer sheets. The existing technology mainly realizes the recognition of the answers to the objective question area through the recognition of handwritten numbers or letters to perform automatic marking. The accuracy of letter recognition is affected, and this technology is difficult to apply to large-scale exams

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