Extraction Method of Examination Paper Content Region Based on Template Matching

Abstract

The invention provides a test content area extraction method based on template matching. The method comprises the following steps of according to a sample test paper image, generating a test paper template image; and matching a test paper image to be marked with the test paper template image and extracting a content area of the test paper image to be marked. According to the sample test paper image, the test paper template image which is related to test paper identification information is generated. During a paper marking process, through shooting or scanning, the image of the test paper to be marked is acquired, and the image of the test paper to be marked is matched with the corresponding test paper template image. According to a matching result, the content area in the test paper to be marked is determined and extracted. Contents in the content area are identified and calculated so as to acquire a test paper marking result. The test content area extraction method based on template matching can be applied to the various kinds of test paper; automatic paper marking and result statistics are realized; a work load of manual paper marking is effectively reduced; and efficiency and accuracy of test paper marking are increased.

Description

technical field [0001] The invention relates to the technical fields of image recognition and pattern recognition, in particular to a method for extracting test paper content regions based on template matching. Background technique [0002] With the advent of the information age, electronic information technology continues to develop and penetrates into different industries, gradually replacing complicated manual operations, and greatly improving the efficiency of transaction processing. At present, electronic marking technology through automatic scanning has been widely used. Compared with traditional manual marking methods, electronic marking can greatly improve the speed of marking, and can effectively avoid marking errors caused by human errors and improve the accuracy of test paper evaluation. and fairness. [0003] Existing electronic marking mostly adopts the form of separating the test paper and the answer sheet. The examinee fills in the answers to the test questio...

AI Technical Summary

Problems solved by technology

Although the above marking method can improve the efficiency of marking, but because the test questions and answer sheets are separated, candidates need to fill in the answers to the test questions separately on the answer sheets according to the regulations after answering the questions, which undoubtedly increases the operational complexity of the test takers.

At the same time, the existing electronic marking method needs to make a special answer sheet, and read the answer sheet information through a special card reader with a specific optical character recognition system. The printing accuracy of the answer sheet is high, and the production cost is high. Larger exams cannot be widely used in some small and medium-scale exams

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