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Answer sheet reading method and device and computer readable storage medium

An answer sheet and location information technology, applied in the field of image processing, can solve problems such as affecting the positioning results of objective questions, invalid answer content, stained ink, etc., to reduce the difficulty of production and popularization, improve the recognition efficiency, and improve the compatibility. Effect

Pending Publication Date: 2019-11-15
ZICT TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0004] (1) When the typesetting layout of the answer sheet changes, the paper size of the answer sheet changes or the paper material changes, it will affect the positioning results of the objective questions (sub-areas)
[0005] (2) When there are problems such as staining or unclear ink marks on the answer sheet, the content of the read answer may be invalid

Method used

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  • Answer sheet reading method and device and computer readable storage medium
  • Answer sheet reading method and device and computer readable storage medium
  • Answer sheet reading method and device and computer readable storage medium

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Embodiment Construction

[0055] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0056] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0057] figure 1 A schematic flow chart of a method for reading an answer sheet according to an embodiment of the present invention is shown.

[0058] Such as figure 1 As shown, the answer sheet re...

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Abstract

The invention provides an answer sheet reading method and device and a computer readable storage medium, and the method comprises the steps: recognizing a character in an image of an answer sheet, anddetermining the position information of a subarea of the answer sheet according to the character; judging the validity of the answer content corresponding to the position information; and carrying out horizontal projection and vertical projection on the subareas to obtain coordinates of answer boxes of the subareas in the image of the answer sheet. According to the technical scheme, the positioninformation of the answer sheet area is obtained through the character recognition technology, positioning of a positioning block is not needed, the position of each answer frame is obtained through the horizontal projection method and the vertical projection method for the sub-areas where the answer frames exist, the anti-interference capacity is high, and the recognition rate is high.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an answer card reading method, an answer card reading device and a computer-readable storage medium. Background technique [0002] With the development of information technology, the amount of data processed by computers is increasing. In many fields, it is urgent to solve the problems of massive data collection, identification and entry. Large-scale exams use OMR (Optical Mark Reader, Optical Mark Reader) to deal with this problem, and machine-readable answer sheets can improve the speed of data entry to a certain extent. [0003] In the related technology, the reading process of the answer sheet usually uses the identification positioning block to determine the position of the answer area, and then determines the area of ​​the objective question, or uses the position of the filling point relative to the marking point to locate the filling point. To determine the area of ​​objec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/20G06K9/32G06K9/38
CPCG06V30/40G06V10/22G06V10/243G06V10/28G06V30/10
Inventor 曾志辉欧阳一村许文龙贺涛邢军华
Owner ZICT TECH CO LTD
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