KR20060041465A - On-line grading system by mobile camera phone - Google Patents

Abstract

The present invention classifies test papers taken through the digital camera of the mobile camera phone possessed by the examinee for each test answer, transmits them to the online scoring server through the mobile Internet, and scores the corresponding data according to the results. The present invention relates to a system for transmitting an examinee's mobile camera phone and a method thereof. To this end, the present invention takes a test paper from a mobile phone and divides the image for each question answer area and transmits the image to the online scoring server. Process, processing in the online scoring server part that classifies and stores the received image information by item type, and in case of updating each answer image data stored in the online scoring server through video analysis, self scoring If multiple scorers are on the server Access to the results divided into the transmission process of transmitting the data according to the scoring process, and results after analyzing the scoring results from an online server in scoring Scoring client that allows you to re-grade the mobile phone of the examinees.

Through the present invention, the examinee can take the test by using a mobile camera phone anytime, anywhere after the written test, there is an advantage that can be confirmed by the mobile phone with incorrect notes or test result analysis data according to the test results, a number of scorers By repeating the professional scoring of only a plurality of test answer images for each question without checking human information on the examinee, there is an advantage that it is possible to prevent fraud or scoring errors due to the test paper of the examinee that occurred in the existing written test. It also has the advantage that it can be processed in real time through the general written answer test paper which can be inputted in the form of a short answer by the existing online test, the national ranking which was only possible in the large-scale test through the OMR card, or the comparison with the previous score. In addition, since the answer image data of the test paper is stored in the online scoring server, it has the same credibility as the original test paper storage, so that the original test paper can be collated.

Mobile camera phone, online scoring server, scoring client, mobile internet, answer shooting correction area

Description

On-line grading system by mobile camera phone}

1 is a conceptual diagram of a process of reading test papers from a mobile camera phone, transmitting them to a server, and scoring them in a scoring client.

Figure 2 is a system flow chart for the process of reading the test paper from the mobile camera phone and sending it to the server, scoring in the scoring client.

3. An example of the original and answer sheet of the paper to be scored.

4. The embodiment of the shooting screen and the answer shooting method of the mobile camera phone.

5. An example of answer data that is classified and stored at an online scoring server.

Test site scoring methods using existing computer processing systems include scoring methods using OMR cards and online tests through internet access. In addition, there is a conventional manual scoring method in which a grader manually inputs and scores an answer.

The existing OMR card scoring system can quickly score multiple-choice questions through a professional reader, but the answer must be written on a separate OMR card without writing the answer directly on the questionnaire. Because of the need for computerized processing, the test takes a lot of time before the examinee finally confirms the test results. In addition, in the case of the short answer, it is impossible to directly score the answer. Therefore, a separate short answer question is prepared on the OMR card, and the short answer is written there. . Because of this, the test method using the OMR card has a time limit such as the examinee's burden of writing a separate answer sheet in addition to the questionnaire, and the transport of the answer sheet for grading. Therefore, it has been used only for large-scale tests such as the SAT test and the TOEIC test. .

On the other hand, the online test method is to take a test by checking the examinee directly on the screen through the Internet, and to write a short answer through the fast multiple choice computer processing such as an OMR card and text input using a keyboard, and to quickly score through the Internet, and to perform a test. It has the advantage of being able to show the test results. However, there is a spatial limitation that the examinee must sit in front of the computer to take the test, and since the questions are focused on multiple-choice answers for the online computer processing, and the answers to the short-answer questions can be written in typeable letters, mathematical and scientific formulas and solutions The process is limited in scoring important questions or answers such as pictures. In addition, there is a disadvantage in that it is impossible to directly check whether or not the examinee is connected to the Internet and thus prevent cheating.

In the case of a grader who directly scores the original test paper and inputs the result, it is advantageous to check and score the answer using the complex diagram directly by the naked eye. Since the results are computed and directly inputted, scoring is relatively time consuming and mistakes may occur due to manual scoring and computational input. In addition, the examinee can be identified through the name or indicator on the answer sheet, so the grader risks cheating by giving a good score to the specific examinee's answer or changing the answer sheet.

The present invention is to solve the problems of the conventional scoring method, after sending the test part answer section through the mobile phone and storing it in the server, the objective scorer through the automatic scoring, the scorer through the scoring client To provide a method for grading test papers and computing in real time.

Another object of the present invention is to examine the test taker's test paper using a mobile camera phone and an online scoring server, and in response to the results, the examinee sends the data such as incorrect notes back to the examinee's mobile phone anytime, anywhere. You can check the results of the test, and accordingly provide a way to use the educational content, such as incorrect notes and vocabulary.

In order to achieve the object of the present invention as described above, the present invention in the process of photographing the test paper through the mobile camera phone and transmitting to the online scoring server, the step of photographing the test paper through the answer-taking video, and taken by answer In the process of writing the answer data by classifying the image, calling the grading server, and transmitting the answer data through the wireless Internet, classifying and storing the answer data in the online grading server, and then automatically scoring or calling the grading client. To determine whether the answer data is multiple choice, scoring in the multiple-choice method through the image recognition method, and in the case of the subjective method to call the scoring client, in the process of receiving and scoring the call signal from the scoring client, the answer DB of the online scoring server Download the data from the In the step of inputting the result and transmitting it to the online scoring server, in the process of computerizing the scoring result in the online scoring server and transmitting the result to the examinee's mobile camera phone, the scoring result is computed from the scoring result DB. And combining the scoring result and the content data through the scoring result content DB and calling and calling the examinee's mobile camera phone.

 Exemplary embodiments of the present invention may exist, and a preferred example will be described in detail below with reference to the accompanying drawings.

First, the present invention, after taking the test answer sheet (Fig. 1-10) with a mobile camera phone (Fig. 1-100) as shown in Fig. 1 showing the system concept and classify it and send it to the online scoring server (Fig. 1-200) It is about a series of processes and the system for scoring in the scoring client (FIGS. 1-300) and transmitting back to the mobile camera phone via the scoring server.

 As shown in Fig. 2, which is a flowchart that divides this into several steps, the system receives an examinee's mobile camera phone (Fig. 2-100) and test answer data, and after computerized processing, online scoring for sending the scoring results and data. The system is divided into a server (FIG. 2-200) and a scoring client (FIG. 2-300) of a professional grader for each item, and a series of processes through this is described as follows.

 As shown in FIG. 2, the examinee first inputs a page unique number of a test answer sheet to be scored on his mobile camera phone (FIGS. 2-100). At this time, the test answer sheet to be photographed by the examinee is a test answer sheet prepared by freely filling in the original answer sheet (FIG. 3-101) as shown in FIG. 3 (FIG. 3-102). When the unique number is input in FIG. 2, the answer photographing correction area of the answer to be photographed on the photographing screen of the mobile camera phone is displayed by the photographing program pre-installed in the mobile camera phone as shown in FIG. 2-102. The answer photographing correction area is an area mark that appears on the camera photographing screen of the mobile camera phone in order to accurately photograph only the answer portion described by the examinee on the answer sheet, and FIGS. 4 to 101, 4 to 102, and 4 to 103 of FIG. To illustrate. Fig. 4-101 shows a state in which a general shooting target is displayed on a general camera shooting screen; Fig. 4-102 shows a shooting screen in which no image is displayed and nothing is shown; Fig. 4-103 shows an answer shot for scoring a test answer sheet. An example of a photographing screen in which a correction area is displayed on the screen, and areas a and b in FIGS. 4-103 are photographing correction areas of a space where an answer is to be taken when photographing. 2, the examinee photographs the prepared test answer in accordance with the photographing correction areas a and b as shown in FIG. 4-104 of FIG. 4. Then, as shown in Figure 4-105, the photographed test answer sheet automatically edits only the image in the photographing correction area by the built-in program and is separately stored. By performing the process of Fig. 2-104 through Fig. 2-101 through the photographing correction area as described above, it is possible to prevent the wrong answer sheet photographing, which is difficult to identify due to the out of focus or the answer sheet being tilted, and then the test in the scoring process. The process of correcting the tilt of the answer sheet can be omitted. In addition, by saving only the answer section of the test answer sheet, it not only saves the storage space of the mobile camera phone, but also reduces the size of the transmission data compared to the entire image transmission method by using the partial image transmission method in the subsequent answer transmission process. The cost of transmission time and transmission capacity can be reduced. Subsequently, as shown in FIG. 2-105, the test answer sheet photographing program embedded in the examinee's mobile camera phone asks whether the test answer sheet to be additionally photographed exists, and then there is no test answer sheet to be photographed further. Repeat the process up to -105. After all of the test answer photographing is completed, in step 2-106, a and b of the answer image of FIG. 4-105 extracted in the previous step are assigned a question number and a type recognition number for the answer respectively, and the test answer sheet information is combined. After the data is created, answer data is created by integrating it with the candidate's unique information stored in the mobile camera phone. After the answer data is created, the online scoring server (Fig. 2-200) is called through the wireless Internet in step 2-107 of FIG. 2 and the answer data is transmitted to the online scoring server. Here, the dotted line in FIG. 2-107 indicates the flow of answer data through the mobile Internet to the online scoring server.

Subsequently, the online scoring server receives a call signal from the examinee's mobile camera phone and transmits answer data as shown in FIG. The transmitted answer data is assigned a unique identification code for each examinee's unique information and problem type in step 2-202. Thereafter, the answer data assigned with the unique identification code is classified according to the unique identification code in FIG. 2-203 and stored in the answer DB of FIG. 2 (FIG. 2-a). At this time, the data stored in the answer DB (a) is a unique identification number and examinee information, such as to determine whether the answer image multiple choice and subjective, in addition to the answer image, and to determine which examinee's answer, which test questions how many times There is this. 5-101 of FIG. 5 illustrates an example of answer images classified as multiple choices, and FIG. 5-102 of FIG. 5 illustrates an example of storage of answer images classified as subjective answers. 5A and 5B-102 of FIG. 5 are examples of answer images of the examinees received in the previous step, which are classified and stored together with the answer images of other examinees. Thereafter, the answer stored in the step of FIG. 2-204 of FIG. 2 is divided according to whether the answer type is a multiple choice or a short answer. If the answer to be graded in the scoring process is a multiple choice, the online scoring server itself is automatically scored as in step 2-205. In this case, the multiple-choice answer image is four-choice or five-choice, and the number of images to be recognized is limited to four to five, so that it is relatively easy to recognize a handwritten image by conventional OCR reading, thereby enabling rapid automatic scoring. If the answer to be scored is a short answer, the online scoring server in step 2-206 calls the grading client (FIG. 2-300) over the Internet when the certain criteria are satisfied and answers data for the same question of other examinees. Including, the answer information stored in the answer DB (Fig. 2-a) will be transmitted. In this case, the schedule criteria refers to a standard for efficiently processing a certain number of answers at a time by the scoring client, such as when a certain time has passed or when a certain number of answer data is accumulated.

The scoring client then receives the call signal as in step 2-301 and downloads answer images to be scored from the online scoring server in step 2-302. At this time, the subjective answer images transmitted in the form of Fig. 5-102 of Fig. 5 are displayed on the screen of the scoring client in step 2-303, and the scoring agent of the scoring client visually marks the plurality of subjective answers displayed on the screen. The result is then entered as shown in Fig. 2-304. At this time, the scoring agent can check only the images of the multiple-choice answers, and because the identification information of the answer maker, that is, the examinee, cannot be confirmed, the scoring agent can secure fairness in the scoring of the answers. Because professional marking is done on the screen at the same time, scoring can be performed more efficiently and quickly than manual scoring, which is a manual scoring method. Thereafter, as shown in FIG. 2-305, the process of FIG. 2-305 is repeated in FIG. 2-302 until there are no additional answer images. The scoring results stored through the series of processes are edited and written into the scoring result data in step 2-306, and the online scoring server is called through the internet and the scoring result data is transmitted through the internet as in step 2-307. In this case, the content included in the scoring data may be attached with the reason for the scoring and the opinion in addition to the unique identification number for the answer and the score corresponding to the number. The online scoring server then receives the call signal and downloads the subjective scoring result data as in step 2-207.

As such, the separate scoring process of the step 2-205 for the multiple-choice scoring and the step 2-206 to the step 2-207 for the multiple-choice scoring is to enhance the scoring efficiency according to the answer type, even in the case of the multiple choice answer. If higher accuracy is required, visual scoring can also be performed using a step scoring client.

Then, the results of the scored short answer and multiple choice answers are converged for each examinee according to the unique identification number and stored in the scoring result DB (Fig. 2-b) in step 2-208. Next, the scoring result is computed according to the contents of the computational processing DB (FIG. 2-c) of FIG. Is processed. In this step, the computational processing DB (FIG. 2-c) includes a scoring score for each item, corresponding data, and scores of previous examinees for comparing scores according to the scoring result. After that, the computerized result data is stored in the computerized result DB (Fig. 2-d), which updates the ranking, problem propensity, difficulty analysis, and statistical results in step 2-210 according to the result. This allows test takers and test institutes to obtain analytical data such as test scores, overall rankings, and difficulty levels. After the storing step in the computation result DB (Fig. 2-d), the mobile camera phone is called after grafting with the corresponding content from the content DB (Fig. 2-e) of Fig. 2 according to the computation result in step 2-211. The scoring results and the content data are transmitted through the mobile internet. In this case, the content data refers to multimedia content data such as voice, image, and video that can be provided according to the examinee's test result, such as an incorrect answer note, a wordbook, a problem description, a national ranking, and the examinee's grade analysis. . The examinee's mobile camera phone then receives the call signal in step 2-108 and downloads the scoring results and content data to store in the camera phone. Subsequently, in the step of FIG. 2-109, the examinee can check the scoring result and use the contents through the display of the mobile camera phone.

As described above, the examinee can take a remote test using the mobile camera phone anytime, anywhere after the written test, and the scored results are sent to the examinee's mobile camera phone so that the examinee can check in real time. According to the result, multimedia data such as incorrect notes, vocabulary, progress graph, and video description can be transmitted to the examinee's camera phone together in the form of mobile content.

In addition, since the test taker's answer data is stored in the online scoring server, when the question about the test result is raised, the test taker's answer data can be searched by the search, and thus has the same credibility as the original test answer sheet.

In the grading method, the multiple choice answer with simple character recognition such as four-choice and five-choice choices performs automatic scoring quickly through image discrimination on the grading server.In the case of the short answer, the grader connects to the online grading server through the grading client. Can be scored remotely. In the grading client, the scorer can professionally score only the answer image of the test answer sheet, so that a large amount of test answers can be scored at a faster speed than manual scoring by the test answer sheet, and no test taker information is provided other than the test answer sheet. Since it is not possible to check whether a specific examinee through the test, there is an advantage that can prevent the grading behavior or scoring errors by checking the answer sheet of the examinee who could have occurred in the conventional written test.

As described above, the above system performs a fast and reliable subjective and multiple choice scoring process using an online scoring system using a mobile camera phone. Therefore, the examinee can freely use a mobile camera phone without using an OMR card or a special test answer form. The results of the examination can be checked, and the previous grade comparison, national ranking comparison, problem difficulty analysis, etc., which could only be processed in a large-scale online exam or mock test using an OMR card, can be processed in real time.

Claims (3)

A test paper photographing program embedded in the online scoring server, a mobile camera phone for photographing a test paper, and wirelessly transmitting through a mobile internet, and reading and scoring a test paper image connected to the online scoring server through the Internet. In a mobile scoring system equipped with a grading client, the test answer sheet is taken as a grading target, photographed by the examinee's mobile camera phone, the online grading is performed, and the computerized processing is performed. Taking the answer of the test paper and sending it along with the test information to the online scoring server and the online scoring server to divide it by question and store it in a database form along with the answers of other examinees and to call the scoring client and the scoring client Grading the answers divided by questions and transmitting the scoring results to the online scoring server, collecting and computing the scoring results in the online scoring server, storing the results in a database, and transmitting the results to the examinee's mobile camera phone. Online scoring method using a mobile camera phone, characterized in that it comprises The method of claim 1, wherein the online scoring server receives from an online client server. In the process of computerizing the answer scoring result and transmitting the result to the examinee's mobile camera phone, through the content database according to the answer scoring result and the computing result Online scoring method using a mobile camera phone further comprising the step of transmitting the multimedia content, such as documents, images, video, audio, as a scoring result According to claim 1 in the process of photographing and transmitting the test paper with a mobile camera phone The mobile camera phone outputs the answer photographing correction area on the screen, through which photographs of the test paper according to the answer photographing correction area, and separates only the answers in the answer photographing correction area to classify the multiple-choice multiple-choice according to the answer to assign a unique number And storing the test answer information, and storing the test taker's answers in the form of a database in the online scoring server and storing the test answer information as a subjective and multiple choice according to the answer image unique number. Automatic scoring according to the method, and in the case of the short answer online scoring method using a mobile camera phone comprising the step of calling the answer information to the scoring client

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