KR20190052410A - System and method for automatic grading using the examination paper or textbooks with answer - Google Patents

Abstract

The present invention relates to an automatic grading system using a test sheet with integrated answers and a teaching material with integrated answers and a method thereof. Also, the automatic grading system using a test sheet with integrated answers and a teaching material with integrated answers comprises: a receiving unit to receive a photographed image obtained by photographing a test sheet with integrated answers or a teaching material with integrated answers from a test taker terminal; an identification unit to identify information including a test subject from the photographed image; a preprocessing unit to convert the photographed image into a preset standard; an answer position tracking unit to analyze the converted photographed image to track test questions and an answer position for each test question; and a grading unit to recognize an answer marked or written on the answer position for each test question, and determine whether the answer is correct or wrong to generate grading results of the test sheet with integrated answers or the teaching material with integrated answers. Time and efforts for grading answers of a test taker by a test giver can be reduced, and a separate OMR sheet for grading the answers of the test taker is not required, thereby reducing expenses.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic grading system and an automatic grading system,

The present invention relates to an automatic grading system and method using an integrated test sheet and an integrated answer material.

In general, elementary / middle / high schools conduct learning using the textbooks and perform various evaluations for the achievement diagnosis. In other words, students submit test questions to the subjects they have learned and evaluate their achievement based on the results of the scoring.

However, in the past, after distributing test papers to the students and then directly scoring the answers given on the test papers or by directly scoring the answers given in the test items of the textbook itself, it was often used. However, , Recently, a method of distributing OMR paper that can mark the answer with a test paper or a textbook, and reading the answer marked on the OMR paper using an OMR reader or a scanner is used.

On the other hand, even in the case of scoring the answers using the OMR paper, the OMR reader or the scanner for reading the OMR paper as well as the OMR paper must be purchased.

In addition, since OMR paper is consumed every time the test is repeated, if the OMR paper is completely consumed, it becomes a cost to repurchase the OMR paper.

In addition, in the case of scoring an answer by using the conventional OMR paper, after the readout of the answer written on the OMR sheet by the OMR reader or the scanner is completed, the test taker or the user compiles and classifies the readout result, Since the process of informing the test result to the test taker is performed, time and effort for scoring the test taker's answer still occurs to the test taker, and it is difficult for the test taker to check the score result in a short time.

Therefore, in the process of examining the test and scoring the answer, it is possible for the test taker to quickly check the result of the test for the test while reducing the time and effort for the test taker to score the answer of the test taker, And the introduction of the generated technology is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an integrated test sheet and an automatic test sheet which can automatically score an answer of a test candidate without requiring a separate OMR sheet for scoring test answers, And an automatic grading system using the integrated textbook of the answer and a method thereof.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to another aspect of the present invention, there is provided a method for testing an answer to a question, comprising the steps of: receiving a test image from a test candidate terminal; An identification unit for extracting an identification code printed in advance on the answer integrated test sheet or the answer integrated teaching material from the photographed image and identifying information including a test subject from the identification code; A preprocessing unit for setting at least one reference position in the captured image and converting the captured image into a predetermined standard based on the reference position; An answer position tracking unit for analyzing the captured image converted from the preprocessing unit and tracking an answer position of each test item and test item; And a scoring unit for recognizing the answers marked or written at the answers to the test items and determining whether the answer is correct or incorrect for the recognized answer to generate the answer test sheet or the score result of the answer- It provides an automatic grading system using the answer sheet integrated test paper and the answer textbook.

In a preferred embodiment, the preprocessor sets the identification code and the page number printed in advance on the answer-integrated test sheet or the answer-integrated teaching material as a reference position, and re-sizes the shot image based on the identification code and the page number Converted into a binary-converted monochrome image.

In a preferred embodiment, the answer position tracking unit extracts numbers and special characters, which are present in a predefined predetermined area or position or are displayed in a predefined font, from the converted shot image, , And tracks the position of each test item based on the position of each test item.

In a preferred embodiment, the scoring unit recognizes the multiple-choice test sheet or the multiple-choice answer marked on the answer-integrated textbook by analyzing the shading value of the marking area existing at the position of the answer by the test item.

In a preferred embodiment, the scoring unit recognizes a questionnaire answer written on the answer-integrated test sheet or the answer-integrated teaching material by converting an image existing at an answer position of each test item into text using a character recognition algorithm.

In a preferred embodiment, the scoring result generated from the scoring unit is transmitted to the test applicant terminal that has transmitted the shot image of the answer integrated test paper or the shot image of the answer integrated teaching material, And a result transmitting unit.

According to the present invention, there is provided an automatic grading method performed in an automatic grading system using an integrated test sheet and an integrated answer material, comprising the steps of: (1) ; (2) The automatic grading system extracts an identification code previously printed on the answer-integrated test sheet or the answer-integrated teaching material from the shot image, and identifies information including a test subject from the identification code; (3) the automatic grading system sets at least one reference position in the shot image and converts the shot image into a predetermined standard size based on the reference position; (4) the automatic grading system analyzing the converted photographed image and tracking the position of each test item and an answer item for each test item; And (5) the automatic grading system recognizes the answers marked or written on the answers to the test items, determines whether the answers are correct or incorrect, and sends the score sheets of the integrated test sheets or the answer- And an automatic grading method using an integrated test paper and an integrated answer material.

In a preferred embodiment, in the step (3), the automatic grading system sets an identification code and a page number, which have been previously printed on the answer integrated test sheet or the answer integrated teaching material, as a reference position, Re-sizing the image and then converting it into a binary image.

In a preferred embodiment, in the step (4), the automatic grading system may extract, from the converted photographed image, a number which is present in a predefined area or position or is displayed in a predefined font, Character is extracted to identify the test item, and an answer position is tracked based on the position of each test item.

In a preferred embodiment, in the step (5), the automatic grading system analyzes the shading value of the marking area existing at the position of the answer by the test item to determine whether the answer- Recognize your answer.

In a preferred embodiment, in the step (5), the automatic grading system may convert an image existing at an answer position for each test item into text using a character recognition algorithm to convert the answer- The answer to the question is as follows.

In a preferred embodiment, after the step (5), (6) the automatic grading system sends the generated scoring result to a test applicant who has transmitted a shot image of the answer-integrated test paper or a shot image of the answer- And transmitting to the terminal or transmitting it to a preset test applicant terminal set in advance.

According to the above-mentioned problem solving means, the present invention is characterized in that the present invention comprises: a receiving section for receiving a shot image of an answer-integrated test sheet or an answer-integrated teaching material taken from a test candidate terminal; an identification section for identifying information including a test subject and a page from the shot image; A preprocessing unit for converting the photographed image into a predetermined standard standard, an answer position tracking unit for analyzing the converted shot image and tracking the position of each test item and the answer item for each test item, and an answer mark And a scoring unit for judging whether a correct answer or an incorrect answer is made and generating a scoring result, so that it is possible to reduce the time and effort required for a test taker to score an answer of the test taker.

In addition, since the present invention does not require a separate OMR sheet for scoring an answer of the test taker, the cost can be reduced.

In addition, the present invention is configured to transmit a scoring result to a test applicant terminal or a test applicant terminal that has sent an answer integrated test sheet or an answer-integrated textbook, thereby allowing a test result of a test taken by a test candidate to be confirmed in a short time.

1 is a view for explaining an automatic scoring system according to an embodiment of the present invention;
2 is a diagram for explaining a detailed configuration of an automatic scoring system;
Fig. 3 is a view for explaining an embodiment of an integrated test sheet according to the embodiment; Fig.
4 is a view for explaining an automatic scoring method according to an embodiment of the present invention.

It will be understood by those skilled in the art that the specific details of the invention are set forth in order to provide a thorough understanding of the present invention and that the present invention may be readily practiced without these specific details, It will be clear to those who have.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

FIG. 1 is a view for explaining an automatic scoring system according to an embodiment of the present invention, FIG. 2 is a view for explaining a detailed configuration of an automatic scoring system, FIG. 3 is a view for explaining an embodiment of a test- FIG.

1 to 3, an automatic scoring system 100 according to an embodiment of the present invention includes a receiving unit 110, an identification unit 120, a preprocessing unit 130, an answer position tracking unit 140, (150) and a scoring result transmitting unit (160).

Here, the automatic scoring system 100 according to an embodiment of the present invention may be provided as a server or a computing device that is connectable via a wired, wireless communication network, the Internet network, and a mobile communication network.

In addition, the test taker who wishes to take the test can upload the answer sheet 10, the correct answer or the answer material, and the correct answer to the automatic grading system 100 by using the test taker terminal 20, The exam candidate who has taken the exam may record his / her answer in the answer-integrated test sheet 10 or the answer-integrated teaching material, and then upload the photographed information to the automatic grading system 100 by using the test applicant terminal 30.

The test applicant terminal 20 may be a computing device including a personal computer or a mobile terminal including a smart phone, and the test applicant terminal 30 may be implemented as a photographing device including a smart phone Lt; / RTI > mobile terminal.

As shown in Fig. 3, the answer sheet 10 includes an identification code 11 printed at a predetermined position and includes a page number 12 for displaying a page and a page number 12 for displaying a page There can be provided test questions (13), test questions described in each test item, and answer questions (14), which are locations for marking or writing answers. In addition, the above-described answer item for each test item (14) is formed so as to mark the answer of the multiple-choice question or to answer the question of the supportive question.

On the other hand, the answer integrated textbook may include a page for test essay having the same form as the one-shot test paper described above, although it may be provided with additional pages for explaining the learning contents or for solving the test.

Hereinafter, an automatic grading system according to an embodiment of the present invention is described as an integrated test paper for an answer, but the same can be applied to the case of using an answer integrated textbook.

The receiving unit 110 is for receiving the information transmitted from the test applicant terminal 30 and the test taker terminal 20. For example, the receiving unit 110 can receive, from the test applicant terminal 30, Receiving function.

In addition, the receiving unit 110 may further receive user information for identifying a test candidate from the test candidate terminal 30, and may also receive user information from the test applicant terminal 20, May be received in advance.

In addition, information received from the test taker terminal 20 or the test applicant terminal 30 and received by the receiving unit 110 may be stored in a separate storage unit.

The identification unit 120 is for identifying information on a test taken by a test candidate from a photographed image and performs a function of identifying information including a test subject and a page that the test candidate has taken.

Preferably, the identification unit 120 analyzes the photographed image received by the receiving unit 110, extracts the identification code 11 previously printed on the answer sheet 10, Subjects, and pages. ≪ RTI ID = 0.0 >

In addition, the above-described identification code 11 may be provided as a QR code.

The preprocessing unit 130 performs preprocessing for image processing and is configured to set a photographed image so that a series of processes to be performed in the answer position tracking unit 140 and the scoring unit 150 can be easily performed, Converts to standard format.

Preferably, the preprocessing unit 130 may be provided to set at least one reference position in the shot image, and to convert the shot image based on the reference position.

In addition, the preprocessing unit 130 sets the identification code 11 and the page number 12 printed in advance on the answer-integrated test sheet 10 as the reference position, and re-sizes the shot image based on the identification code 11 and the page number 12 It can be converted into a binary image.

The answer position tracking unit 140 is for tracking an answer position of the answer integrated test sheet 10. The answer position tracking unit 140 analyzes the converted shot image from the preprocessing unit 130 and analyzes each test item 13 included in the shot image, And the location of the answer by question (14).

Preferably, the answer position tracking unit 140 extracts, from the converted shot image, numbers and special characters which are present in a predefined predetermined area or position or are displayed in a predefined font, 13), and track the answer position 14 for each test item based on the position of each test item.

At this time, the answer position 14 according to the test items may be spaced a predetermined distance from the test item 13 in a specific direction or may be positioned with a predetermined margin in between.

In addition, the information for defining the area or the position for the identification of the test item 13, the information that has previously defined the font, and the information for tracking the answer position 14 by the test item can be stored in the above-mentioned storage unit .

The scoring unit 150 is for scoring the test-integrated test sheet 10, and recognizes an answer marked or written on the answer item 14 for each test item, and determines whether the answer is correct or incorrect And collects the determination results to generate a score result of the answer integrated test sheet 10.

For this purpose, the scoring unit 150 may be provided to recognize the multiple-choice answers marked on the answer-integrated test strip 10 by analyzing the shading values of the marking areas present at the answer position 14 per test item.

In addition, the scoring unit 150 may be provided to recognize the sub-expressive answers described in the answer-integrated test sheet 10 by converting an image existing at the answer question 14 at each test item by text using a character recognition algorithm.

The scoring result transmitting unit 160 transmits the scoring result and transmits the scoring result generated from the scoring unit 150 to the test applicant terminal 30 that has transmitted the answer integrated test sheet 10 .

The scoring result transmitting unit 160 may be provided to transmit the scoring result generated from the scoring unit 150 to the test taker terminal 20 of the test taker who submitted the test.

Accordingly, the automatic grading system 100 according to the embodiment of the present invention allows the test result of the test candidate to be checked in a short time and reduces the time and effort for the test taker to score the test taker's answer Also, the cost of OMR paper consumption can be reduced.

4 is a view for explaining an automatic scoring method according to an embodiment of the present invention.

Referring to FIG. 4, an automatic scoring method performed in the automatic scoring system according to an embodiment of the present invention will be described.

However, since the functions performed in the automatic scoring method shown in FIG. 4 are all performed in the automatic scoring system described with reference to FIGS. 1 to 3, all the functions described with reference to FIGS. 1 to 3 It should be noted that all the functions performed in the automatic scoring method according to the preferred embodiment of the present invention and described with reference to FIG. 4 are performed in the automatic scoring system according to the preferred embodiment of the present invention.

First, the receiving unit receives a photographed image in which an answer integrated test sheet is photographed from a test applicant terminal (S110).

However, it is preferable that the step of receiving and storing the test-integrated test sheet and the correct answer information from the test taker terminal before receiving the captured image from the test candidate terminal is performed in advance.

The receiving unit may further receive user information for identifying the test candidate while receiving the shot image from the test candidate terminal.

Next, the identification unit identifies information about the test taken by the test taker from the shot image (S120).

At this time, the identification unit can extract the identification code printed in advance on the answer integrated test sheet from the photographed image, identify the information including the test subject and the page from the identification code, and the identification code described above can be provided as a QR code have.

Then, the preprocessor converts the captured image into a predetermined standard (S130).

At this time, the preprocessor sets at least one reference position in the photographed image. For example, the preprogrammed identification code and the page number may be set as reference positions in the answer integrated test sheet.

In addition, the preprocessor converts the photographed image into a standard format based on the reference position. For example, the preprocessor may perform a process of re-sizing the photographed image and then converting the photographed image into a binary monochrome image.

Then, the answer position tracking unit analyzes the converted shot image from the preprocessing unit and tracks the answer position of each test item and the test item (S140).

At this time, the answer locator extracts the test items from the converted shot image by extracting a numeral and a special character, which are present in a predefined predetermined area or position, or are displayed in a predefined font, Based on the position of each test item.

In addition, the position of an answer by the test item may be spaced a predetermined distance from the test item in a specific direction, or may be positioned with a predetermined margin in between.

Next, the scoring unit is marked on the answer integrated test paper or scored on the written answer to generate the scoring result (S150).

At this time, the scoring unit can recognize the multiple-choice answer marked on the test-answer sheet by analyzing the shading value of the marking area at the answer position of each test item.

In addition, the scoring unit may recognize the submerged answer written on the answer sheet integrated test paper by converting an image existing at the answer position of each test item into text using a character recognition algorithm.

In addition, the scoring unit can generate the scoring result of the integrated test sheet by determining whether the answer is correct or incorrect.

Then, the scoring result transmitting unit transmits the scoring result to the test applicant terminal or the test applicant terminal that has sent the answer integrated test sheet (S160).

Through this process, the test taker can check the results of the test he / she scored in a short time, reduce the time and effort for the test taker to score the test taker's answer, and reduce the expenditure due to the consumption of OMR paper .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

110:
120: Identification unit
130:
140:
150: Scoring unit
160: Scoring result transmission unit

Claims (12)

A receiving unit that receives a taken image of the answer-integrated test sheet or the answer-integrated teaching material taken from the test candidate terminal;
An identification unit for extracting an identification code printed in advance on the answer integrated test sheet or the answer integrated teaching material from the photographed image and identifying information including a test subject from the identification code;
A preprocessing unit for setting at least one reference position in the captured image and converting the captured image into a predetermined standard based on the reference position;
An answer position tracking unit for analyzing the captured image converted from the preprocessing unit and tracking an answer position of each test item and test item; And
And a scoring unit for recognizing the answers marked or written at the answers to the test items and determining whether the answers are correct or incorrect for the recognized answers to generate the answer test sheets or the scoring results of the answer- An automatic grading system using an integrated test paper and an integrated textbook.
The method according to claim 1,
The pre-
The identification code and the page number printed in advance on the answer integrated test sheet or the answer integrated teaching material are set as reference positions, and the shot image is re-sized based on the identification code and the page number are converted into a binarized black and white image An automatic grading system that uses an integrated test sheet and an integrated answer book.
The method according to claim 1,
Wherein the answer position tracking unit comprises:
Extracting a numeral and a special character, which are present in a predefined predetermined area or position or indicated by a predefined font, from the converted shot image to identify the test item, and based on the position of each test item Wherein the score of the test item is tracked according to the test item.
The method according to claim 1,
The scoring unit includes:
And the shading value of the marking area existing at the position of the answer by the test item is analyzed to recognize the multiple choice test sheet or the multiple choice test item marked on the answer-integrated textbook. The test sheet and the answer sheet are automatically scored using the integrated textbook system.
5. The method of claim 4,
The scoring unit includes:
And an image of an answer at each position of the test item is converted into a text by using a character recognition algorithm to recognize a questionnaire answer written in the answer integrated test sheet or the answer integrated textbook, Automatic scoring system to use.
6. The method according to any one of claims 1 to 5,
A scoring result transmitting unit for transmitting the scoring result generated from the scoring unit to the test applicant terminal that has transmitted the shot image of the answer integrated test paper or the shot image of the answer integrated teaching material or transmits the result to the preset test applicant terminal And an automatic grading system using an integrated test sheet and an integrated test material.
An automatic grading method performed in an automatic grading system using an answer integrated test paper and an answer integrated material,
(1) The automatic grading system includes the steps of: receiving a photographed image of an answer-integrated test sheet or an answer-integrated teaching material taken from a test applicant terminal;
(2) The automatic grading system extracts an identification code previously printed on the answer-integrated test sheet or the answer-integrated teaching material from the shot image, and identifies information including a test subject from the identification code;
(3) the automatic grading system sets at least one reference position in the shot image and converts the shot image into a predetermined standard size based on the reference position;
(4) the automatic grading system analyzing the converted photographed image and tracking the position of each test item and an answer item for each test item; And
(5) The automatic grading system recognizes an answer written or marked at the position of an answer by the test item, determines whether the answer is correct or incorrect, and sends the result of the integrated test sheet or the score of the answer- And an automatic grading method using an integrated test paper and an integrated answer material.
8. The method of claim 7,
In the step (3), the automatic grading system may include:
The identification code and the page number printed in advance on the answer integrated test sheet or the answer integrated teaching material are set as reference positions, and the shot image is re-sized based on the identification code and the page number are converted into a binarized black and white image An automatic grading method using an integrated test paper and an integrated textbook of the answer.
8. The method of claim 7,
In the step (4), the automatic grading system may include:
Extracting a numeral and a special character, which are present in a predefined predetermined area or position or indicated by a predefined font, from the converted shot image to identify the test item, and based on the position of each test item And an answer position is tracked according to the test item. The automatic grading method using the integrated test paper and the integrated textbook of the answer.
8. The method of claim 7,
In the step (5), the automatic grading system may include:
And the shading value of the marking area existing at the position of the answer by the test item is analyzed to recognize the multiple choice test sheet or the multiple choice test item marked on the answer-integrated textbook. The test sheet and the answer sheet are automatically scored using the integrated textbook Way.
11. The method of claim 10,
In the step (5), the automatic grading system may include:
And an image of an answer at each position of the test item is converted into a text by using a character recognition algorithm to recognize a questionnaire answer written in the answer integrated test sheet or the answer integrated textbook, How to use auto-scoring.
12. The method according to any one of claims 7 to 11,
After the step (5)
(6) The automatic grading system transmits the generated scoring result to the test applicant terminal that has transmitted the shot image of the answer integrated test paper or the shot image of the answer-integrated teaching material, or transmits the result to the preset test applicant terminal The method comprising the steps of: (a) providing an answer sheet having a plurality of test sheets;

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