KR100738026B1 - Reading apparatus and its method for statistics process and marking - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reading apparatus and method for statistical processing and scoring, and more particularly to a reading processing apparatus and method for statistical processing and scoring for specifying statistical processing or scoring targets and performing statistical processing or scoring for each tag.

The present invention relates to a statistical processing and scoring apparatus, comprising: input means for receiving a target image including at least one display unit and / or a display point to be subjected to statistical processing or scoring, and for each tag of a base image of the target image; Storage means for storing display area information, a first comparison image, comparison means for comparing the first comparison image with an image on the target image according to display area information for each tag, the input means, storage means, and And control means for controlling the comparison means and storing the display information in the storage means for generating display information including a display position for each tag indicating the position of the display point according to the comparison result from the comparison means.

Description

READING APPARATUS AND ITS METHOD FOR STATISTICS PROCESS AND MARKING}

1 is a block diagram of a reading apparatus relating to statistical processing and scoring according to the present invention.

2 is a flowchart of a reading method relating to statistical processing in the case of a questionnaire.

3 is a flowchart of a reading method relating to scoring in the case of the answer sheet.

4A-4E are examples of images used in the case of questionnaires.

5A-5C are examples of images used in the case of answer sheets.

<Description of the symbols for the main parts of the drawings>

10: reading device 11: input means

12: storage means 13: user input means

14: generating means 15: comparison means

16: display means 17: control means

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reading apparatus and method for statistical processing and scoring, and more particularly, to a reading processing apparatus and method for statistical processing and scoring for specifying statistics processing or scoring targets and performing statistics or scoring for each tag.

Most of the evaluation methods such as grades and university entrance examinations, lecture evaluations, other school grades, mathematics skills assessments, various national qualification tests, and driver's license tests in Korea, have been conducted since the 1980s. Optical Mark Reader) card or sheet is used.

When such an OMR card or sheet is used, expensive OMR card readers and sheet readers are used to read them, and through the sensor, instantaneous light passes through the timing marks displayed on the OMR card or sheet. The mark detection method is used. Such sensing requires a considerable degree of sophistication in the printing or cutting of OMR cards or sheets, requiring special materials (mostly imported paper) and special printing. These special papers and printing not only increase the production cost of the OMR card or sheet, but also struggle to secure a certain quantity at each school at the beginning of each semester. In addition, the use of such a timing mark should limit the configuration of the OMR card or sheet's answer display section (display configured to allow the examinee to display an answer) within a predetermined range, even if various examination methods are required. Answer sheets should be made to fit the format within the design format required by the OMR card or sheet reader.

In order to solve this problem of the prior art, the applicant of the present invention has applied for a "answer sheet scoring apparatus and method" which is a patent 2003-0077736. The answer sheet grading apparatus includes at least one answer display unit, input means for receiving an image of an answer sheet that is a scoring object including an answer mark point, storage means for storing a predetermined basic answer array and a correct answer text file, and basic means from the storage means. An extraction module that reads an answer array and extracts an answer display point image including only the answer display points corresponding to the basic answer array from the answer sheet image, and includes position information on the answer display point from the answer display point image A generation module for generating a text file, a comparison module for reading the correct text file from the storage means, comparing the generated text file with the generated text file, and generating a scoring result according to the comparison; And an extraction module, a generation module, and a comparison module to control the answer sheet. Control means for receiving an unknown input and storing the scoring result in the storage means. The answer sheet scoring method may further include receiving at least one answer display unit and an answer sheet image that is a scoring target including an answer mark point, and displaying an answer including only the answer mark points corresponding to a predetermined basic answer array from the answer sheet image. Extracting a point image, generating a text file including position information of the answer mark from the answer mark image, comparing the generated text file with a correct answer text file, and comparing Storing the scoring results according to the results.

Even in this improved technique, the answer sheet may be freely configured than in the prior art, but the answer display unit is still arranged in tens of rows and columns. In particular, this highly complex arrangement of answer markers presents a significant difficulty for primary and middle school students to write their answers on the answer sheets when the question and answer sheets are separated.

In addition, since the answer sheet scoring apparatus and method is a technology for scoring the answer sheet in the case where the questionnaire and the answer sheet are basically separated, it is easy to extract only the answer mark image, but in the case of the questionnaire, all of the questionnaire should be deleted. Corresponding to the part, it is not easy to delete only this part except the answer display part. In particular, in the case of a questionnaire, in general, after a person rewrites the contents of the questionnaire into a sheet of a predetermined answer sheet form, the user can only read the rewritten sheet according to the prior art. This problem is similarly caused when a questionnaire is directly displayed on a questionnaire, and then scoring is performed on the questionnaire.

In addition, in this technique, the final location information is not only difficult for a general user to directly check and confirm the correct answer, or to directly use it for statistical processing, but also includes both rows, columns, and numbers. Relatively increased.

In order to solve this problem, it is an object of the present invention to provide a statistical processing and a reading apparatus and method for scoring that can perform scoring and statistical processing for papers and questionnaires, etc., which are constructed by integrating a questionnaire and an answer sheet.

In addition, the present invention provides a reading apparatus and method for statistical processing and grading that enables a user to easily use a questionnaire and answer sheet that can easily distinguish the answer display unit, so that an answer can be easily displayed. It aims to do it.

It is also an object of the present invention to provide a reading apparatus and method for statistical processing and scoring which can identify a display portion and / or a display point more quickly and accurately by avoiding the deletion process on the image.

In addition, the present invention is to provide a reading apparatus and method for the statistical processing and scoring that the user directly confirms the final display information to confirm the displayed information, and displayed in tags and lines to relatively reduce the amount of data. The purpose.

The present invention relates to a statistical processing and scoring apparatus, comprising: input means for receiving a target image including at least one display unit and / or a display point to be subjected to statistical processing or scoring, and for each tag of a base image of the target image; Storage means for storing display area information, a first comparison image, comparison means for comparing the first comparison image with an image on the target image according to display area information for each tag, the input means, storage means, and And control means for controlling the comparison means and storing the display information in the storage means for generating display information including a display position for each tag indicating the position of the display point according to the comparison result from the comparison means.

In this case, the storing means additionally stores the base image and the second comparative image, and the reading apparatus includes display means for displaying the base image, and a tag area defined by a user with a predetermined tag with respect to the base image. It is preferable to further include a user input means for receiving the input and generating means for generating display area information for each tag including at least one display area for each tag by comparing the image in the tag region and the second comparison image. .

In addition, the tag area and the display area for each tag are preferably made of coordinates.

Preferably, the display area information for each tag includes a comparison order for comparison by the comparison means.

In addition, the comparison order is preferably made of at least a top and bottom and / or left and right.

In addition, the comparison means preferably performs the comparison in units of lines of the display area for each tag.

The storage means may further store correct answer display information, and the control means compares the correct answer display information with the display information to generate a scoring result and store the result in the storage means.

Preferably, the control means reads at least one display information from the storage means, performs statistical processing according to the display position for each tag, and stores the statistical result in the storage means.

The present invention also relates to a method for reading and processing statistics and scoring, the method comprising: receiving a target image including at least one display unit and / or a display point to be subjected to statistics processing or scoring; Comprising a first comparison step of comparing the image on the target image and the first comparison image, and generating display information including a display position for each tag indicating the position of the display point in accordance with the comparison result.

Hereinafter, the present invention has been described in detail based on the embodiments of the present invention and the accompanying drawings. However, the scope of the present invention is not limited by the following embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

1 is a block diagram of a reading apparatus relating to statistical processing and scoring according to the present invention. As shown in FIG. 1, the reading device 10 includes at least one display unit (eg, ①②③④⑤, etc.) to be subjected to statistical processing or scoring from an external image acquisition device 18 or a storage medium (not shown). And / or input means 11 for receiving a target image including a display point (for example, ●), a target image, a base image for the target image, a base and target comparison image, A storage means (12) for storing display area information for each tag; a user input means (13) for receiving a tag area defined by a predetermined tag from a user with respect to a base image, and an image in the tag area and a basic comparison image are compared; Generating means 14 for generating display area information for each tag including at least one display area for each tag, an image on the target image according to display area information for each tag, and the target; The comparison means 15 for comparing the cross images, the display means 16 for displaying the base image, and the above-described components are controlled to obtain display area information for each tag from the base image, and display area for each tag. And control means 17 for comparing the target image according to the information with the target comparison image and generating display information including the display position for each tag indicating the position of the display point according to the comparison result.

In detail, the input unit 11 is a drive or a port capable of receiving an answer sheet image as an attachment of a messenger or an e-mail through a predetermined network, reading a storage medium (CD, etc.), or a predetermined image obtaining apparatus 18. You may receive an answer (or questionnaire or questionnaire) image directly or indirectly from the image. The image acquisition device 18 is a device for obtaining an answer sheet (or questionnaire or questionnaire) image as it is, for example, a scanner or a digital camera.

The storage means 12 also store the target image from the input means 11. This target image is what the user wants to process or grade (what the user has shown or is considered to be displayed), for example, questionnaire, questionnaire (which can display the answer), answer sheet, etc. This is the image of.

In addition, the storage means 12 stores a base image for the target image, which may be one that the user does not display at all or a correct answer is displayed in the case of a questionnaire or answer sheet.

In addition, the storage means 12 stores the basic and object comparison images compared with the display portion and / or the display point. Here, the basic comparison image includes a common image of the display point of the basic image and the display unit, and corresponds to, for example, an image of "○". In addition, since the target comparison image is for searching what the user has displayed on the display unit, the target comparison image must include an image of the display point.

In addition, the storage means 12 includes display area information for each tag of the basic image. The display area information for each tag includes a tag for identifying a tag area including at least a portion of display units that can be displayed by the user, and A display area for each tag, which is a position where an image on the same basic image is formed in the tag region, and a comparison order for comparing the basic comparison image and the image on the basic image in the corresponding tag region. The comparison procedure here applies equally to the comparison of the object comparison image with the image on the object image. This comparison order is compared vertically with respect to one line starting from the left and right (D) (vertical first), left and right R (horizontal first), or a combination thereof (D, R) (leftmost). The next one row is compared in the vertical direction), (R, D) (starting from the top side and comparing one row in the horizontal direction and the next row in the horizontal direction) do.

In addition, the storage means 12 stores the correct answer display information for scoring in the case of a questionnaire or answer sheet. The correct answer display information is configured in the same format as the display information disclosed below. The storage means 12 also stores statistical results of statistical processing in the case of questionnaires. This statistical result includes the number of display points displayed by the user for each tag.

In addition, the user input means 13 is a means for receiving a tag area from the user in the basic image displayed on the display means 16, for example, a mouse or a keyboard. This tag area has a kind of rectangular shape on the display means 16, but the stored data is in the form of coordinate ordered pairs (coordinates of the upper left corner, coordinates of the lower right corner), and the ordered pairs are pixel units on the display means 16. Is made of. In addition, the user input means 13 may receive a tag (for example, '1', '2', etc.) for the input tag area from the user, provided that the control means 17 has a display area. You can also set a tag automatically each time it is entered.

In addition, the generating unit 14 compares the image in the tag region with the basic comparative image, and displays tag-specific display region information including at least one display region for each tag including coordinate order pairs indicating positions of the same image as the basic comparison image. Create The display area for each tag is composed of pairs of coordinate sequences forming a rectangle including the same image as the basic comparison image. A plurality of display areas for each tag may be included in the same tag area, and display area information for each tag includes coordinate order pairs for each of them.

In addition, the comparison means 15 compares the image of the target image in the area according to the display area information for each tag with the target comparison image, and compares the result of the comparison (for example, identical, non-identical, etc.) to the control means 17. send.

The determination of the sameness in the comparison process in the generating means 14 and the comparing means 15 described above is generally regarded as the same when they are equal by a predetermined degree. For example, if the same degree is 60% or more, it can be regarded as the same.

In addition, the display means 16 is a means for displaying the above-described base image and / or the target image to the user, for example, a monitor or the like.

In addition, the control unit 17 first corrects the inclination of the base image and the target image. This is to solve this problem, when the base and target images can be obtained in an oblique or opposite direction when the base and target images are acquired in a given image acquisition device 18, this process is As described in the specification filed by the applicant, the reference is made based on a predetermined reference sign, and a description thereof will be omitted. The detailed function of this control means 17 is disclosed in the flowcharts of FIGS. 2 and 3 below.

2 is a flowchart of a reading method relating to statistical processing in the case of a questionnaire.

In detail, in step S21, the control means 17 receives or reads the basic image through the input means 11 or the storage means 12, and displays it on the display means 16 so that the user can see it.

In step S22, the control means 17 receives a tag area set by the user using the user input means 13. In this case, the tag region may be input together with the tag region. The control means 17 also receives a comparison procedure for comparing the display points in this tag area from the user input means 13.

In step S23, the control means 17 transmits the input tag area (exactly, coordinate order pair) and / or comparison order and the basic comparison image previously stored in the storage means 12 to the generating means 14. . The generating means 14 compares the images in the tag region with the basic comparison images according to the comparison order, sets up a display area for each tag including coordinate order pairs for the same portion (that is, the display unit), and displays such tags. The display area information for each tag constituted by the area is transmitted to the control means 17. This control means 17 stores the received tag-specific display area information for the base image in the storage means 12.

In step S24, the control means 17 waits for the target image to be input via the input means 11.

In step S25, the control means 17 reads out the target image input through the input means 11, the display area information for each tag and the target comparison image for the base image previously stored in the storage means 12, It transmits to the comparison means 15. Accordingly, the comparison means 15 compares the image on the target image (that is, the display point) and the target comparison image in the display region for each tag according to the display region information for each tag, and determines whether or not it is the same.

In step S26, the control means 17 receives the comparison result according to the display area information for each tag from the comparing means 15, and displays the display position for each tag indicating the position of the display point according to the comparison result. Information is generated and stored in the storage means (12). The display position for each tag indicates the position of the display point located in the same tag in units of lines.

In step S27, the control means 17 reads at least one or more display information stored in the storage means 12, reads each display information, and performs statistical processing on the display position for each tag. In other words, this statistical processing is for calculating how many users are displayed on a given line of a given tag. Thus, the control means 17 stores the performed statistical results in the storage means 12.

3 is a flowchart of a reading method relating to scoring in the case of the answer sheet.

In detail, steps S31 to S36 are performed in the same manner as in steps S21 to S26 of FIG. 2. However, the answer sheet may be in the form of the answer sheet according to the prior art, or may be a mixed form of the questionnaire and the answer sheet in the form of a questionnaire.

In step S37, the control means 17 compares the correct answer display information pre-stored in the storage means 12 with the generated display information, and determines whether or not it is the same according to each tag. This comparison may be performed by general character comparison since both the correct answer display information and the display information are data in the form of text.

In step S38, the control means 17 stores the scoring result according to the comparison result of step S37 in the storage means 12. This scoring result may simply indicate a correct or incorrect answer for each tag, or may be a result of scoring that reflects the correct or incorrect result. In this case, if each tag (i.e. each question) has a different score, multiply the comparison result of each tag (e.g., '1' if correct answer, '0' if incorrect) and multiply the result. Scoring results are calculated by summing, and when the tags all have the same scoring score, the scoring results are calculated by multiplying the sum of all comparison results by the scoring.

4A-4E are examples of images used in the case of questionnaires.

As shown in FIG. 4A, the image shown is the base image 20 of the questionnaire. The basic image 20 includes a plurality of questions 21 presented to the user and reference marks 22a and 22b serving as a reference for tilt correction of the questionnaire basic image 20. In addition, each item 21 includes a display unit 21a that the user selects and displays. This control means 17 displays this basic image 20 on the display means 16, as described in steps S21 and S31.

As shown in FIG. 4B, in steps S22 and S32, the control means 17 receives the tag areas 23a to 23g through the user input means 13. As shown in FIG. At this time, the control means 17 stores the coordinate order pairs of the tag areas 23a to 23g.

4C is an embodiment of a basic comparative image stored in the storage means 12. In steps S23 and S33, the generating means 14 compares the basic comparison image 24 with the images in the tag areas 23a to 23g to find the same image (i.e., the display point), A display area 25 for each tag having a minimum size including the same image (display point) is generated as a pair of coordinate sequences of the pair.

4D is an embodiment of a target image. The user uses an arbitrary writing implement to mark the questionnaire, and the target image 20a, which is an image of the questionnaire, has a mark point 26 as shown.

4E shows an embodiment of a target comparison image stored in the storage means 12. In steps S25 and S35, the comparison means 15 displays the display area for each tag (preferably the display portion 21a and / or the display point 26) in the tag areas 23a to 23g according to the display area information for each tag. )) And the target comparison image 27 are compared with each other to determine whether they are identical. In this embodiment, the original image painted inside is used as the target comparison image.

Table 1 below is an embodiment of display area information for each tag according to FIGS. 4A to 4C.

tag Applicable question Comparison Order Display area by tag (coordinate order pair)  One  Question 1  R 292 635 300 642, 311 635 319 642, 330 635 339 642,  2  Question 2  R 388 635 396 642, 407 635 415 642, 426 635 434 642, 465 635 473 642, 503 635 511 643, ...  6  Question 6  R 312 331 320 339, 350 331 359 338, 388 331 397 338,  7  Question 7  R 504 331 512 338, 523 332 531 339, 542 332 551 339,

As disclosed in Table 1, tag 1 indicates item 1, and the comparison proceeds to R (left and right) in the tag area of tag 1. That is, according to R, the generating means 14 proceeds to the display area for each tag which is the display unit {(292, 635) (300, 642)} in comparison with the first line, and since there are no more display units in the first line, Proceed and compare. Through this process, the generating means 14 generates a display area for each tag having three display areas (squares) (that is, three pairs of coordinate order pairs) of the display points in the tag area. The following tags 2 to 7 are made in the same manner.

The generation of the display information in the questionnaire may be equally applied to the paper in which the answer sheet is mixed on the questionnaire.

5A-5C are examples of images used in the case of answer sheets. This embodiment is a case where the present invention is applied to a conventional general answer sheet.

As shown in FIG. 5A, the answer sheet (or basic image of the answer sheet) 30 includes a personal information area 31 in which personal information of a user (or examinee) is written, an area 32 in which a subject code is written, It includes an area 33 for writing the short answer score, a blank area 34 for writing the multiple choice answer, and reference marks 35a and 35b for tilt correction of the basic image 30 of the answer sheet. Each of these areas 31, 32, 33, 34 includes a plurality of display units 36.

As shown in FIG. 5B, in the case of the basic image 30 of the answer sheet, in steps S22 and S32, the control means 17 passes through the tag areas 37a to 37h through the user input means 13. Receive the input. At this time, the control means 17 stores the coordinate order pairs of the tag areas 37a to 37h.

5C is an embodiment of a target image. The user displays on the answer sheet using any writing implement, and the target image 30a, which is an image of the answer sheet, has a mark 38 as shown.

In the embodiments of FIGS. 5A to 5C, the basic comparison image and the target comparison image of FIGS. 4C and 4E may be equally applied.

Table 2 below is an embodiment of display area information for each tag according to FIGS. 5A to 5C.

tag Applicable area Comparison Order Display area by tag (coordinate order pair) One line D 10 10 34 33, ... 2 grade D 741 192 768 219, ... 3 Conclusion D 777 194 803 220, ... 4 half D, R 811 194 838 220, ... 5 number D, R 847 194 874 220, ... 6 Subject Code D, R 883 194 909 220, ... 7 Subjective score D, R 917 194 944 220, ... 8 Answer R, D 954 194 980 221, ...

As shown in Table 2, the tag 1 indicates the sequence area, and the generating means 14 performs comparison with the basic comparison image for one row in the vertical direction in accordance with the comparison procedure D. The comparison order of the tag 4 bet 7 is a combination of D and R, and the generating means 14 first performs a comparison on one row in the left and right directions, and after that, 1 in the up and down directions on the right side. Perform a comparison on the line. Next, in the case of tag 8, since the comparison order is R and D, the generating means 14 performs the comparison in the left and right directions at the first row at the top, and performs the comparison in the left and right directions in the next row after the performance. This order of comparison is intended to distinguish where there are markers representing different information in the line.

Next, display information finally generated by the control means 17 is disclosed. This display information follows the rules in Table 3 below.

Explanation Symbol Classification of tag : Display position in tag (display value) _ Different line breaks , Display position (display value) of the same line (empty place) No indication 0

For example, the case in which the display information is "1_1: 2_2, 3: 3_0,2: 4_3 4,9" will be described as follows.

* 1_1: Selection of the first display part (or number 1) of the first line of tag 1

* 2_2,3: Selection of the 2nd display part (or 2) of the 1st line of tag 2,

Selection of the third display section (or number 3) on the second line of tag2

* 3_0,2: The first line of tag 3 is not displayed,

Selection of the second display section (or number 2) on the second line of tag 3

* 4_3 4,9: Selection of the third and fourth display sections (or 3 and 4) of the first line of tag 4

Selection of the 9th display section (or 9) on the second line of tag 4

As described above, according to the rule of the display information, since the predetermined display points are not distinguished into rows and columns, respectively, the data amount can be reduced.

According to the rules of the display information disclosed in Table 3, the display information of FIG. 4D is " 1_0,1,0: 2_0,1,0,0,0: 3_0,0,0,1,0: 4_0,0,1, 0: 5_1,0,0,0: 6_0,1,0: 7_0,1,0 ".

The same rule of display information is also applied to the case of FIG. 5C. In addition, the rule of the display information is equally applied to the correct answer display information, so that the control unit 17 can perform the scoring more accurately and faster than the comparison of the image through the comparison of the text (that is, the comparison of the characters). That is, for example, in the case of tag 8, the display information is the same as '8_3,3,4,4,1,1,2,2,5,3', so that the correct answer display information is '8_3,2,4,' If 4,1,1,2,3,5,3 ', scoring can be performed by comparing the numbers in each line.

Next, since the statistical result should include a cumulative value for each display unit, it is calculated by summing numbers corresponding to the same line of the same tag. For example, '1_10, 9, 7' indicates that the number 1 of the tag 1 (item 1) is 10 people, the number 2 is 9 people, and the number 3 is 7 people. In this way, the statistical result can be calculated by a simple arithmetic calculation, not a complicated process, and the user (statistical person) can check the numerical value of the statistical result and can clearly recognize the actual statistical result.

The present invention of such a configuration has the effect of performing the scoring and statistical processing of the paper and questionnaire, etc. composed by integrating the questionnaire and the answer sheet.

In addition, the present invention enables the user to easily identify the answer display unit so that the display unit can be easily identified, and thus the identification of the display point on which the answer is displayed is possible, and thus the display of the answer can be easily performed. Also has the effect of performing quickly.

In addition, the present invention has the effect of identifying the display unit and / or the display point more quickly and accurately by avoiding the deletion process for the image.

In addition, the present invention allows the user to directly confirm the final display information to confirm the displayed information, and has the effect of relatively reducing the amount of data by displaying with tags and lines.

Claims (15)

Input means for receiving a target image including at least one display unit or display point to be subjected to statistical processing or scoring; Storage means for storing display area information for each tag of the base image of the target image and a target comparison image; Comparison means for comparing the image on the target image with the target comparison image according to the display area information for each tag; Controlling the input means, the storage means and the comparison means to generate display information including a display position for each tag indicating the position of the display point according to the comparison result from the comparison means, and storing the display information in the storage means. And a control means for storing in the reading apparatus. The method of claim 1, The storage means additionally stores the base image and the base comparative image, and the reading apparatus includes a display means for displaying the base image, and a user receiving a tag area set to a predetermined tag by the user with respect to the base image. Statistical processing and scoring further comprising an input means and generating means for comparing the image in the tag region with the basic comparison image to generate display area information for each tag including at least one display area for each tag. A reading device. The method of claim 2, And the tag area and the display area for each tag are coordinates. The method according to claim 1 or 2, And said display area information for each tag includes a comparison order for comparison by said comparison means. The method of claim 4, wherein And said comparison order comprises at least a top, bottom, left, or right order. The method of claim 5, And the comparing means performs the comparison in units of lines of the display area for each tag. The method of claim 1, And the storage means further stores correct answer display information, and the control means compares the correct answer display information with the display information to generate a scoring result and stores the result in the storage means. . The method of claim 1, The control means reads at least one display information from the storage means, performs statistical processing according to the display position for each tag, and stores the statistical result in the storage means. Reading device. Receiving at least one target image including at least one display unit or display point to be subjected to statistical processing or scoring; A first comparing step of comparing an image on the target image with an object comparison image according to the display area information for each tag; And generating display information including a display position for each tag indicating the position of the display point according to the comparison result. The method of claim 9, The reading method includes displaying the base image, receiving a tag region defined by a predetermined tag from a user with respect to the base image, and comparing the image in the tag region with a base comparison image. And generating tag-specific display area information including at least one tag-specific display area according to the comparison result. The reading method according to claim 10, wherein the reading method performs the first comparing step and the second comparing step according to a predetermined comparison order. The method of claim 11, And said comparison order comprises at least a top, bottom, left and right priority. The method of claim 12, And the first and second comparison steps perform the comparison in units of lines of the display area for each tag. The method of claim 9, And the reading method further comprises a third comparing step of comparing the correct answer display information and the display information, and a generating step of generating a scoring result which is the comparison result. The method of claim 9, The reading method further includes reading at least one display information, performing statistical processing according to the display position of each tag, and storing the statistical result. On how to read.

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