CN101866415A - Answer sheet recognition device and method of computer marking system - Google Patents
Answer sheet recognition device and method of computer marking system Download PDFInfo
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- CN101866415A CN101866415A CN200910189726A CN200910189726A CN101866415A CN 101866415 A CN101866415 A CN 101866415A CN 200910189726 A CN200910189726 A CN 200910189726A CN 200910189726 A CN200910189726 A CN 200910189726A CN 101866415 A CN101866415 A CN 101866415A
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Abstract
The invention discloses an answer sheet recognition device and a method of a computer marking system. The answer sheet recognition device comprises a data reading module and a character recognition module, wherein the data reading module is used for acquiring the information of an answer sheet picture and sending the information of the answer sheet picture to the character recognition module; the character recognition module is used for translating character shapes on the answer sheet picture into word information which can be read by a computer by adopting an optical character recognition technology and storing the word information. In the invention, the device can recognize the answer information on the simple and easy answer sheet through installing the character recognition module in the answer sheet recognition device of the computer paper check system by adopting the optical character recognition technology, and the computer paper check system can be used for small and medium size examinations at ordinary times. The application of the invention is wider.
Description
Technical field
The present invention relates to online examination paper marking systems, relate in particular to a kind of answer sheet recognition device and method of computer marking system.
Background technology
Adopt computer marking to be meant that with computer networking technology and image processing techniques be support, the fair and just property principle of marking examination papers to realize taking an examination is a kind of new mode of going over examination papers of final purpose.Its is in conjunction with tradition for many years manually go over examination papers rich experiences and modern high technology, adopt paper to carry out with the mode that test paper separates, objective item is appraised automatically by computing machine, subjective item is marked respectively to the electronic image of examinee's test paper by network on computers by the different teachers that gos over examination papers, and examines branch and achievement verification automatically by computer system more at last.Adopt computing machine network grading the influencing each other between teacher that can prevent from effectively to mark examination papers, the error rate of going over examination papers can also be dropped to minimum level.
The present computer marking system that is used for all is to adopt anchor point is set on answer sheet, the answer sheet recognition device of computer marking system is discerned different exercise question answer in-scopes by the anchor point on the special answer sheet of induction identification, this answer sheet recognition method need be made the answer sheet of a large amount of special uses, general expense are relatively more expensive, relatively are fit to going over examination papers of large-scale examination.And, adopt the answer sheet of this special use then can too to waste for too much middle-size and small-size examination, and therefore, cause the mode of computer marking also to only limit to going over examination papers of large-scale examination at present, can't offer convenience for more various middle-size and small-size examinations at ordinary times.
Therefore, prior art is still waiting to improve and improve.
Summary of the invention
The objective of the invention is to,, provide a kind of answer sheet recognition device and the method that can carry out the computer marking system of fuzzy diagnosis to simple and easy answer sheet at the above-mentioned shortcoming of prior art.
Technical solution of the present invention is:
A kind of answer sheet recognition device of computer marking system comprises data read module and character recognition module, wherein,
Described data read module is used to obtain answer sheet picture information, and described answer sheet picture information is sent to described character recognition module;
Described character recognition module is used to adopt optical character recognition, and the character shape of described answer sheet picture information is translated into computer-readable Word message, and storage.
Device of the present invention, wherein, described character recognition module comprises Boundary Recognition unit and word recognition unit, wherein,
Described Boundary Recognition unit is used for the bounding box information by identification answer sheet picture information, distinguishes the answer zone of different exercise questions, and the picture in the different boundary frame is sent to described word recognition unit respectively;
Described word recognition unit is used for determining by the bright dark pattern that detects answer sheet picture information the character shape of the picture in each bounding box, adopts character identifying method that character shape is translated into computer-readable Word message, and storage.
Device of the present invention, wherein, described data read module is a scanner.
Device of the present invention, wherein, described data fetch device is a camera.
A kind of answer sheet recognition methods of computer marking system may further comprise the steps:
A, obtain answer sheet picture information;
B, by the bounding box information in the identification answer sheet picture information, distinguish the answer zone of different exercise questions;
C, by detecting the bright dark pattern of answer sheet picture information, determine the character shape in the different answers zone, described character shape is translated into computer-readable Word message, and the Word message in the different answers zone is stored respectively.
Method of the present invention, wherein, described step B is further comprising the steps of:
B1, by the topic information in the upper left corner in each bounding box of identification, write topic number for pictorial information in each bounding box.
Method of the present invention wherein, among the described step C is specially described computer-readable Word message storage according to number storage respectively of described topic.
Method of the present invention wherein, is an optical character recognition method with the described method that character shape is translated into computer-readable Word message among the described step C.
The present invention is by being provided with character recognition module in the answer sheet recognition device of computer marking system, adopt optical character recognition to make it can discern answer information on the simple and easy answer sheet, make computer marking system can be used at ordinary times middle-size and small-size examination, use more extensive.
Description of drawings
Fig. 1 is the answer sheet recognition device structured flowchart of the computer marking system of the embodiment of the invention;
Fig. 2 is the answer sheet recognition methods process flow diagram of the computer marking system of the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, below develop simultaneously with reference to accompanying drawing that the present invention is described in more detail for embodiment.
Below among each embodiment the answer sheet of indication be simple and easy answer sheet, it does not comprise special-purpose anchor point, and just adopt the mode of Freehandhand-drawing boundary line frame that the answer region separation of different exercise questions is opened, the topic of each topic number can be write the upper left corner in corresponding boundary line frame, to save in the picture processing procedure search recognition time, accelerate the speed of going over examination papers to topic number.
The answer sheet recognition device structural principle block diagram of the computer marking system of the embodiment of the invention as shown in Figure 1, it comprises data read module 110 and the character recognition module 120 that connects successively, promptly earlier text information is scanned, then image file is carried out analyzing and processing, obtain literal and layout information.Wherein, data read module 110 is used to obtain answer sheet picture information, and answer sheet picture information is sent to character recognition module 120.The bright dark pattern that character recognition module 120 detects in the described answer sheet picture information is translated into computer-readable Word message and storage with character shape.Character recognition module 120 has mainly adopted optical character recognition (OCR), it is meant electronic equipment, for example scanner or digital camera, check the character of printing on the paper, determine its shape by detecting dark, bright pattern, with character identifying method shape is translated into the process of computword then; That is, text information is scanned, then image file is carried out analyzing and processing, obtain the process of literal and layout information.Therefore the data read module 110 of present embodiment can be the one scan instrument, or can obtain the camera of pictorial information.The output terminal of the answer sheet recognition device of present embodiment can connect the display device of computer marking system or give divide a device, carries out display screen with the computer character information that will obtain and finishes and go over examination papers.
In a further embodiment, character recognition module 120 comprises Boundary Recognition unit 121 and word recognition unit 122.Wherein, Boundary Recognition unit 121 is by the bounding box information on the identification answer sheet picture, distinguish the answer zone of different exercise questions, avoid confusion, picture in the different boundary frame is sent to word recognition unit 122 respectively, and can be by the topic information in the upper left corner in each bounding box of identification, write topic number for pictorial information in each bounding box.Word recognition unit 122 is determined the character shape of the picture in each bounding box by the bright dark pattern that detects information on the answer sheet picture, adopt optical character recognition that character shape is translated into computer-readable Word message, and can number store respectively according to each topic topic, the teacher that conveniently gos over examination papers distinguishes and checks.The teacher that gos over examination papers can divide device by giving of computer marking system, marks according to the answer that shows.
The present invention also provides a kind of answer sheet recognition methods of computer marking system, and its method flow diagram specifically describes as follows as shown in Figure 2 below in conjunction with Fig. 2:
Step S101, obtain answer sheet picture information;
Main scanner or the camera scanning shoot of adopting obtains pictorial information on the answer sheet, and the answer sheet picture information of taking is sent to character recognition module discerns processing;
Step S102, handle,, distinguish the answer zone of different exercise questions by the bounding box information on the identification answer sheet picture for the answer sheet picture of having obtained; And, write topic number for pictorial information in each bounding box by the topic information in the upper left corner in each bounding box of identification; Therefore for ease of identification number, preferably the upper left corner in the answer frame on answer sheet is write in the number of topic, this can be defined as necessary normalized written.Bounding box on the answer sheet can be the closed lines of Freehandhand-drawing on blank sheet of paper simultaneously, its role is to the answer of every topic is distinguished, and this can be defined as necessary normalized written, obscures to avoid each topic.Can adopt any pen to write answer, writing should be clear, adopts round hand as far as possible, to avoid the character recognition module identification error.
Step S103, by detecting the bright dark pattern of information on the answer sheet picture, determine the character shape in the different answers zone, adopt optical character recognition method that character shape is translated into computer-readable Word message, concrete mode as described previously, and with the Word message in the different answers zone according to number respectively storage of topic, distinguish with the teacher that conveniently gos over examination papers and to read and appraise.
The answer sheet recognition device of the computer marking system in the present embodiment and method can be applicable to subjective item or objective item, and can adopt the page is the answer sheet of 4A, and also can adopt the page is the answer sheet of 3A, and size without limits.
In sum, the present invention is by being provided with character recognition module in the answer sheet recognition device of computer marking system, adopt optical character recognition to make it can discern answer information on the simple and easy answer sheet, make computer marking system can be used at ordinary times middle-size and small-size examination, use more extensive.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (8)
1. the answer sheet recognition device of a computer marking system comprises data read module and character recognition module, wherein,
Described data read module is used to obtain answer sheet picture information, and described answer sheet picture information is sent to described character recognition module;
Described character recognition module is used to adopt optical character recognition, and the character shape of described answer sheet picture information is translated into computer-readable Word message, and storage.
2. device as claimed in claim 1 is characterized in that described character recognition module comprises Boundary Recognition unit and word recognition unit, wherein,
Described Boundary Recognition unit is used for distinguishing the answer zone of different exercise questions by discerning the bounding box information of described answer sheet picture information, and the pictorial information in the different boundary frame is sent to described word recognition unit respectively;
Described word recognition unit is used for determining character shape in each bounding box by the bright dark pattern that detects described answer sheet picture information, adopts optical character recognition that character shape is translated into computer-readable Word message, and storage.
3. device as claimed in claim 1 or 2 is characterized in that, described data read module is a scanner.
4. device as claimed in claim 1 or 2 is characterized in that, described data fetch device is a camera.
5. the answer sheet recognition methods of a computer marking system may further comprise the steps:
A, obtain answer sheet picture information;
B, by the bounding box information in the identification answer sheet picture information, distinguish the answer zone of different exercise questions;
C, by detecting the bright dark pattern of answer sheet picture information, determine the character shape in the different answers zone, described character shape is translated into computer-readable Word message, and computer-readable Word message in the different answers zone is stored respectively.
6. method as claimed in claim 5 is characterized in that, described step B is further comprising the steps of:
B1, by the topic information in the upper left corner in each bounding box of identification, write topic number for pictorial information in each bounding box.
7. method as claimed in claim 6 is characterized in that, among the described step C, described computer-readable Word message stored specifically respectively is, number the computer-readable Word message in the different answers zone is stored respectively according to described topic.
8. as claim 5 or 7 described methods, it is characterized in that, among the described step C, is optical character recognition with the described method that character shape is translated into computer-readable Word message.
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| CN102024142A (en) * | 2010-11-25 | 2011-04-20 | 深圳市海云天教育测评有限公司 | Method and device for preventing adhesion of answer sheets |
| CN102915428A (en) * | 2011-08-05 | 2013-02-06 | 北京五岳鑫信息技术股份有限公司 | Automatic test paper score identification processing method based on 8-character code |
| CN104268603A (en) * | 2014-09-16 | 2015-01-07 | 科大讯飞股份有限公司 | Intelligent marking method and system for text objective questions |
| CN104463101A (en) * | 2014-11-06 | 2015-03-25 | 科大讯飞股份有限公司 | Answer recognition method and system for textual test question |
| CN105469337A (en) * | 2016-01-11 | 2016-04-06 | 北京华派科技股份有限公司 | Data processing method and data processing device |
| CN105590101A (en) * | 2015-12-28 | 2016-05-18 | 杭州淳敏软件技术有限公司 | Hand-written answer sheet automatic processing and marking method and system based on mobile phone photographing |
| CN106650720A (en) * | 2016-12-27 | 2017-05-10 | 深圳市海云天科技股份有限公司 | Method, device and system for network marking based on character recognition technology |
| CN107093340A (en) * | 2017-06-22 | 2017-08-25 | 宁波宁大教育设备有限公司 | The intelligent rendering method of course of solving questions |
| CN107463681A (en) * | 2017-08-08 | 2017-12-12 | 广东小天才科技有限公司 | Method and device for identifying questions to be searched |
| WO2018006294A1 (en) * | 2016-07-06 | 2018-01-11 | 王楚 | Exam paper reading system, device and method based on pattern recognition technology |
| CN107832763A (en) * | 2017-11-07 | 2018-03-23 | 青岛理工大学 | Graphic image processing method and apparatus |
| CN108764074A (en) * | 2018-05-14 | 2018-11-06 | 山东师范大学 | Subjective item intelligently reading method, system and storage medium based on deep learning |
| CN108932508A (en) * | 2018-08-13 | 2018-12-04 | 杭州大拿科技股份有限公司 | A kind of topic intelligent recognition, the method and system corrected |
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| CN102024142B (en) * | 2010-11-25 | 2016-05-25 | 深圳市海云天教育测评有限公司 | A kind of method of anti-adhesion of answer sheets and device |
| CN102024142A (en) * | 2010-11-25 | 2011-04-20 | 深圳市海云天教育测评有限公司 | Method and device for preventing adhesion of answer sheets |
| CN102915428A (en) * | 2011-08-05 | 2013-02-06 | 北京五岳鑫信息技术股份有限公司 | Automatic test paper score identification processing method based on 8-character code |
| CN104268603A (en) * | 2014-09-16 | 2015-01-07 | 科大讯飞股份有限公司 | Intelligent marking method and system for text objective questions |
| WO2016041423A1 (en) * | 2014-09-16 | 2016-03-24 | 科大讯飞股份有限公司 | Intelligent scoring method and system for text objective question |
| US10339428B2 (en) | 2014-09-16 | 2019-07-02 | Iflytek Co., Ltd. | Intelligent scoring method and system for text objective question |
| KR101877693B1 (en) * | 2014-09-16 | 2018-07-12 | 아이플라이텍 캄파니 리미티드 | Intelligent scoring method and system for text objective question |
| CN104268603B (en) * | 2014-09-16 | 2017-04-12 | 科大讯飞股份有限公司 | Intelligent marking method and system for text objective questions |
| CN104463101B (en) * | 2014-11-06 | 2017-08-25 | 科大讯飞股份有限公司 | Answer recognition methods and system for character property examination question |
| CN104463101A (en) * | 2014-11-06 | 2015-03-25 | 科大讯飞股份有限公司 | Answer recognition method and system for textual test question |
| CN105590101A (en) * | 2015-12-28 | 2016-05-18 | 杭州淳敏软件技术有限公司 | Hand-written answer sheet automatic processing and marking method and system based on mobile phone photographing |
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| WO2018006294A1 (en) * | 2016-07-06 | 2018-01-11 | 王楚 | Exam paper reading system, device and method based on pattern recognition technology |
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| CN107832763A (en) * | 2017-11-07 | 2018-03-23 | 青岛理工大学 | Graphic image processing method and apparatus |
| TWI655617B (en) * | 2017-12-25 | 2019-04-01 | 國立高雄科技大學 | Test paper automatic correction system and method thereof |
| CN108764074A (en) * | 2018-05-14 | 2018-11-06 | 山东师范大学 | Subjective item intelligently reading method, system and storage medium based on deep learning |
| CN109325401A (en) * | 2018-08-03 | 2019-02-12 | 成都准星云学科技有限公司 | The method and system for being labeled, identifying to title field are positioned based on edge |
| CN108932508A (en) * | 2018-08-13 | 2018-12-04 | 杭州大拿科技股份有限公司 | A kind of topic intelligent recognition, the method and system corrected |
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| CN111062375A (en) * | 2019-12-11 | 2020-04-24 | 南京红松信息技术有限公司 | Question number missing completion method based on context relationship |
| CN111554134A (en) * | 2020-05-27 | 2020-08-18 | 重庆青年职业技术学院 | Online education and teaching method and system |
| CN111554134B (en) * | 2020-05-27 | 2022-08-02 | 重庆青年职业技术学院 | Online education and teaching method and system |
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Application publication date: 20101020 |