JP7266622B2 - Online class system, online class method and program - Google Patents

Description

The present invention relates to an online teaching system, an online teaching method, and a program.

In recent years, opportunities for online classes using video conference systems are increasing. In an online class, for example, a class proceeds while a teacher such as a school teacher or a cram school teacher and each student converse with each other through a WEB camera.
For example, Patent Document 1 discloses an interactive education support system in which a terminal used by a teacher and a terminal used by a student are connected via a network, and the teacher can accept questions from the students. .

Japanese Unexamined Patent Application Publication No. 2004-12813

By the way, in a class held in a school classroom, a teacher can communicate with a specific student by making eye contact with the student. On the other hand, in online classes, the video captured by the web camera installed on the teacher's terminal is distributed uniformly to all students, so communication between the teacher and the students is facilitated. There was a problem that it was difficult to conduct online classes with a sense of presence.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to provide an online teaching system, an online teaching method, and a program that can realize more realistic online teaching.

A first aspect of the present invention is an image obtained by acquiring first image data obtained by photographing a teacher's face from a predetermined angle and second image data obtained by photographing the teacher's face at an angle different from the first image data. an acquisition unit, a student information acquisition unit that acquires student information related to a student of interest to the teacher, and image data to be displayed on a display screen of a student-side terminal based on the student information as the first image data and the second image data . An online class system comprising a video designator for switching between video data .

A second aspect of the present invention is a step of acquiring first image data obtained by photographing a teacher's face from a predetermined angle and second image data obtained by photographing the teacher's face at an angle different from the first image data. a step of acquiring student information relating to a student of interest to the teacher; and, based on the student information, converting video data to be displayed on a display screen of a student-side terminal between the first video data and the second video data . It is an online teaching method in which a computer executes the switching step.

A third aspect of the present invention is a program for causing a computer to function as the online class system.

A fourth aspect of the present invention is a video obtained by acquiring first video data obtained by photographing a teacher's face from a predetermined angle and second video data obtained by photographing the teacher's face at an angle different from the first video data. an acquisition unit, a student identification unit for identifying a student of interest to the teacher, and a student terminal for obtaining the first video data, the second video data, and student information about the identified student based on the student information. and a transmission unit configured to transmit video data to be displayed on the display screen of (1) to an external information processing device that switches between the first video data and the second video data.

A fifth aspect of the present invention is a process of acquiring first image data obtained by photographing a teacher's face from a predetermined angle and second image data obtained by photographing the teacher's face at an angle different from the first image data. and processing for identifying a student of interest by the teacher, and displaying the first video data, the second video data, and student information about the identified student on the display screen of the student terminal based on the student information. and transmitting video data to be displayed to an external information processing device for switching between the first video data and the second video data.

A sixth aspect of the present invention includes first image data obtained by photographing a teacher's face from a predetermined angle, second image data obtained by photographing the teacher's face at an angle different from the first image data, and student identification. a receiving unit that receives the information, compares the received identification information of the student with the identification information of the logged-in student, and based on the result of the comparison, the video data to be displayed on the display unit is the first video data and the and an image designating unit that designates from second image data.

A seventh aspect of the present invention is a program for causing a computer to function as the information processing apparatus.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to implement|achieve more realistic online classes.

1 is a system configuration diagram schematically showing the overall configuration of an online class system according to one embodiment of the present invention; FIG. 1 is a schematic configuration diagram showing an example of a hardware configuration of a lesson support server according to one embodiment of the present invention; FIG. 1 is a schematic configuration diagram showing an example of a hardware configuration of a teacher's terminal according to an embodiment of the present invention; FIG. 1 is a schematic configuration diagram showing an example of a hardware configuration of a student terminal according to the first embodiment of the present invention; FIG. 1 is a functional block diagram showing an example of functions provided in an online class system according to a first embodiment of the present invention; FIG. FIG. 4 is a diagram showing a screen display example of the teacher's terminal according to the first embodiment of the present invention; FIG. 4 is a diagram showing a screen display example of a student-side terminal according to the first embodiment of the present invention; FIG. 4 is a diagram showing a screen display example of a student-side terminal according to the first embodiment of the present invention; FIG. 4 is a diagram showing a screen display example of a student-side terminal according to the first embodiment of the present invention; FIG. 4 is a diagram showing a screen display example of a student-side terminal according to the first embodiment of the present invention; FIG. 10 is a functional block diagram showing an example of functions provided in an online class system according to the second embodiment of the present invention;

An embodiment of an online teaching system, an online teaching method, and a program according to the present invention will be described below with reference to the drawings.
FIG. 1 is a system configuration diagram schematically showing the overall configuration of an online class system 1 according to one embodiment of the present invention.

As shown in FIG. 1, the online class system 1 mainly includes a class support server 10, a teacher terminal 2, and a plurality of student terminals 3a to 3d. In FIG. 1, four student terminals 3a to 3d are illustrated, but the number of student terminals 3a to 3d is not limited to this example, and may be increased or decreased depending on the situation. It is possible. Further, hereinafter, the student-side terminals 3a, 3b, 3c, and 3d will be referred to as the student-side terminals 3a, 3b, etc. when it is necessary to distinguish them from each other. 3.

The teacher-side terminal 2 and the plurality of student-side terminals 3 are connected to the class support server 10 via the network 5 so as to be able to communicate with each other, and are configured to be able to transmit and receive information. An Internet line is given as an example of the network 5, but other network lines may be used.

FIG. 2 is a schematic configuration diagram showing an example of the hardware configuration of the lesson support server 10 according to one embodiment of the present invention. As shown in FIG. 2, the class support server 10 functions, for example, as a CPU 11, a storage unit 12 for storing programs executed by the CPU 11 and data referred to by the programs, and a work area when each program is executed. Main components include a main memory 13 and a communication unit 14 for connecting to a network. Further, the class support server 10 may further include an input unit 15, a display unit 16, and the like. These units are connected via a bus, for example. Examples of the storage unit 12 include magnetic disks such as HDDs (Hard Disk Drives), magneto-optical disks, and semiconductor memories such as SSDs (Solid State Drives).

A series of processes for realizing various functions to be described later are stored in the storage unit 12 in the form of a program (for example, a class support program) as an example, and the CPU 11 reads this program into the main memory 13 and stores the information. Various functions are realized by executing the processing and arithmetic processing of . Note that the program may be pre-installed in the storage unit 12, provided in a state stored in another computer-readable storage medium, distributed via wired or wireless communication means, or the like. may apply. Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like.

The teacher-side terminal 2 is, for example, an information processing device such as a notebook PC, a desktop PC, a tablet terminal, or a smart phone. FIG. 3 shows an example of the hardware configuration of the teacher terminal 2. As shown in FIG.

As shown in FIG. 3, the teacher terminal 2 includes, for example, a CPU 21, a main memory 22, a storage section 23, a camera 24a, an external interface 25, a communication section 26, an input section 27, and a display section 28a. These units are connected to each other directly or indirectly via a bus, and cooperate with each other to perform various processes.

The CPU 21, for example, controls the entire teacher-side terminal 2 by means of an OS (Operating System) stored in a storage unit 23 connected via a bus, and executes various programs stored in the storage unit 23. Executes various processing.

The main memory 22 is composed of writable memory such as cache memory and RAM (Random Access Memory), and is used as a work area for reading out the execution program of the CPU 11 and writing processing data by the execution program.

The storage unit 23 is, for example, a ROM (Read Only Memory), a HDD (Hard Disk Drive), a flash memory, or the like. It stores an OS for controlling the entire terminal 2, various device drivers for hardware operation of peripheral devices, applications for specific tasks, various data and files, and the like. The storage unit 23 also stores a program for realizing the online class system 1, which will be described later, and various data required for realizing various processes.

That is, a series of processes for realizing various functions to be described later are stored in the storage unit 23 in the form of a program (for example, a class support program) as an example, and the CPU 21 reads this program into the main memory 22. , various functions are realized by executing information processing and arithmetic processing. The program may be pre-installed in the storage unit 23, provided in a state stored in another computer-readable storage medium, distributed via wired or wireless communication means, or the like. may apply. Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like.

The camera 24 a includes, for example, an imaging unit such as a lens and an ISP (Image Signal Processor), and is controlled by the CPU 21 .

The external interface 25 is an interface for connecting with an external device. Examples of external devices include a camera, an external monitor, a USB memory, an external HDD, and the like. In the example shown in FIG. 3, the external interface 25 is connected to a camera 24b and an external monitor 28b.

The communication unit 26 functions as an interface for connecting to a network, communicating with other devices, and transmitting and receiving information.
The input unit 27 is a user interface such as a keyboard, mouse, touch panel, etc., for the user to give instructions to the teacher terminal 2 .
The display unit 28a has a display screen composed of, for example, an LCD (Liquid Crystal Display), an organic EL (Electro Luminescence), or the like, and displays the result of the application software program executed by the teacher-side terminal 2. be.

For example, as shown in FIG. 6, in the teacher-side terminal 2, the camera 24b is installed at a position that captures an image of the teacher from an angle different from that of the camera 24a. For example, the camera 24b may be installed at a position where the teacher's face can be photographed at a different angle from the front.
For example, since the camera 24a is provided immediately above the display screen of the teacher terminal 2, when the teacher is gazing at the display screen of the teacher terminal 2, the first image acquired by the camera 24a The data is image data obtained by photographing the teacher's face from the front or a position close to the front. Further, in this state, the camera 24b photographs the teacher's face at an angle that is deviated from the front. Therefore, the second image data acquired by the camera 24b is, for example, image data of the teacher photographed obliquely from the front or from the side. becomes.

The student-side terminal 3 is, for example, an information processing device such as a notebook PC, a desktop PC, a tablet terminal, or a smart phone, like the teacher-side terminal 2 described above. FIG. 4 shows an example of the hardware configuration of the student terminal 3. As shown in FIG. As shown in FIG. 4, the student terminal 3 has substantially the same configuration as the teacher terminal 2 described above. That is, the student-side terminal 3 includes, for example, a CPU 31, a main memory 32, a storage section 33, a camera 34, an external interface 35, a communication section 36, an input section 37, a display section 38, and the like. These units are connected to each other directly or indirectly via a bus, and cooperate with each other to perform various processes. Since the details of each part are as described above, descriptions thereof will be omitted here.

FIG. 5 is a functional block diagram showing an example of the functions of the online class system 1 according to this embodiment.

As shown in FIG. 5 , the teacher-side terminal 2 includes an image acquisition section 41 , a student identification section 42 and a transmission/reception section 43 .
The image acquisition unit 41 acquires first image data captured by the camera 24a (see FIG. 3) provided in the teacher terminal 2 and second image data captured by the camera 24b connected to the teacher terminal 2 as an external device. get.

The student identification unit 42 identifies a student designated by the teacher as a student of interest.
For example, in an online class, video data of each student captured by the camera 34 (see FIG. 4) of the student terminal 3 connected online is displayed on the display unit 28a of the teacher terminal 2 or the external monitor 28b. be done. This video data is, for example, data received by the teacher terminal 2 from the student terminal 3 via the lesson support server 10 .

FIG. 6 is a diagram showing an example of a screen display on the teacher's terminal 2. As shown in FIG. In the screen display example of FIG. 6, images of four students are displayed on the display section 28a, and text information used in class is displayed on the external monitor 28b.

For example, the teacher designates a student of interest from among the students displayed on the display section 28a. For example, the teacher designates a student of interest by operating the input unit 27 (see FIG. 3) such as a mouse and keyboard. It is also possible to designate a plurality of students as the student of interest. A known method can be adopted as a method of specifying a student. For example, the teacher can specify a student of interest by placing the cursor on the display position of one of the students displayed on the display section 28a and performing a click operation. Also, for example, the name of the student of interest may be input by voice. Alternatively, the teacher-side terminal 2 may be provided with a line-of-sight sensor for detecting the line-of-sight, and by fixing the line-of-sight to one of the students displayed on the display screen for a certain period of time, the student of interest may be specified.

It is also possible to designate all students as the target student. For example, in the display screen example shown in FIG. 6, by designating the icon Q, all students can be designated.

Further, when a student of interest is specified by the teacher, the specified student may be displayed on the display screen of the teacher-side terminal 2 so as to be distinguishable from other students. In the display screen example shown in FIG. 6, the image of the designated student is surrounded by a frame so that it can be distinguished from other students.

When a student is specified by the teacher, the student specifying unit 42 (see FIG. 5) receives the input information, specifies the student specified by the teacher, and acquires the student ID of the specified student.
Here, the student ID may be any information that can identify the student, and examples thereof include student account information, student name, and student ID number. The student IDs also include student IDs specifying all connected students. For example, in the example shown in FIG. 6, "9999" is set as the student ID specifying all students.

The transmission/reception unit 43 transmits the first image data and the second image data acquired by the image acquisition unit 41 to the class support server 10 . Also, when a student ID is input from the student identification unit 42 , the student ID is transmitted to the lesson support server 10 .

The lesson support server 10 includes, for example, a transmission/reception section 44 and a video designation section 46 .
The transmission/reception unit 44 receives the first video data and the second video data from the teacher's terminal 2 . Further, the transmitting/receiving unit 44 receives a student ID for identifying the student of interest from the teacher-side terminal 2 .
Also, the transmission/reception unit 44 acquires the student's video data from the student-side terminal 3 . The student's image data is the student's image data obtained by the image obtaining unit 47 of the student-side terminal 3, as will be described later.

When the transmitting/receiving unit 44 receives the student ID, the image specifying unit 46 selects image data to be displayed on the display screen of each student-side terminal 3 as first image data and second image data based on the received student ID. Specify from For example, the image designation unit 46 designates the first image data as image data to be displayed on the display screen of the student identified by the student ID. In addition, the second video data is designated as the video data to be displayed on the display screen of the student-side terminal 3 of the other students.

As described above, the first video data captured by the camera 24a built into the teacher-side terminal 2 is the video data of the teacher captured at a frontal or near-frontal angle, compared to the video data captured by the camera 24b. likely to be. Further, for example, the second image data is likely to be image data obtained by photographing the teacher's face obliquely from the front or from the side, depending on the installation position of the camera 24b.

For the above reason, the image designation unit 46 designates, for example, the first image data as the image data to be transmitted to the student-side terminal 3 used by the noted student designated by the teacher as the noted student. As a result, for example, on the display unit 38 of the student-side terminal 3 used by the student of interest, an image is displayed in which the eyes of the teacher match. As a result, it is possible to make the noted student aware of the teacher's attention. 7 and 8 are diagrams showing examples of display screens of the student-side terminal 3 used by the noted student. FIG. 7 shows an example of a display screen when the class is being conducted without using texts, and FIG. 8 shows an example of the display screens when the class is being conducted using texts.

Further, the image specifying unit 46 specifies the second image data as the image data to be transmitted to the student-side terminal 3 used by the student who is not the student of interest. As a result, for example, an image in which the teacher's line of sight is shifted is displayed on the display unit 38 of the student-side terminal 3 used by the student who is not the student of interest. As a result, for example, when the student is next designated as the student of interest, the video data is switched from the second video data to the first video data. It is possible to make them aware of 9 and 10 are diagrams showing examples of display screens of the student-side terminals 3 used by students other than the student of interest. FIG. 9 shows an example of a display screen when the class is being conducted without using texts, and FIG. 10 shows an example of the display screens when the class is being conducted using texts.

Further, when the transmission/reception unit 44 does not receive the student ID, the image specifying unit 46 selects, for example, any image data preset as image data to be displayed on the display screens of all the student-side terminals 3. (for example, second video data). When the transmission/reception unit 44 receives student IDs indicating all students, the image designation unit 46 designates the first image data as the image data to be displayed on the display screens of all the student terminals 3 .

The student-side terminal 3 includes a video acquisition section 47 and a transmission/reception section 48 .
The video acquisition unit 47 acquires video data of the student captured by the camera 34 (see FIG. 4).
The transmission/reception unit 48 transmits the video data of the student acquired by the video acquisition unit 47 to the lesson support server 10 . Further, the transmission/reception unit 48 receives video data of the teacher from the lesson support server 10 . The video data of the teacher received by the transmission/reception unit 48 is displayed on the display unit 38 .

Next, an online teaching method by the online teaching system 1 according to this embodiment will be described.
At the start of the online class, the teacher inputs his account such as user ID and password into the teacher terminal 2, and each student inputs his account such as user ID and password into his student terminal 3. Participate in online classes by entering Note that the login method and the like are not limited to this example, and various known methods can be used.

As a result, the teacher-side terminal 2 and each student-side terminal 3 are connected via the class support server 10, and the online class is started.

During the online class, the first video data captured by the camera 24a of the teacher-side terminal 2 and the second video data captured by the camera 24b are acquired by the video acquisition unit 41 and sent to the class support server via the transmission/reception unit 43. 10. When the lesson support server 10 has not received the student ID from the teacher terminal 2, for example, the image designation unit 46 designates the second image data for all the students. , the second video data is uniformly transmitted. As a result, the video data of the teacher captured by the camera 24 b of the teacher terminal 2 is displayed on the display screen of each student terminal 3 . (See, for example, FIGS. 9 and 10).

On the other hand, the video data of the student captured by the camera 34 of each student-side terminal 3 is acquired by the video acquisition unit 47 and transmitted to the lesson support server 10 via the transmission/reception unit 48 . The video data of each student transmitted from each student terminal 3 is transmitted to the teacher terminal 2 via the lesson support server 10 . As a result, the video of each student is displayed on the display screen of the teacher-side terminal 2 . (See Figure 6)

During an online class, when the teacher designates a student of interest, the student ID of the designated student is identified by the student identification unit 42, and the identified student ID is sent to the lesson support server 10 via the transmission/reception unit 43. sent to. For convenience of explanation, the case where the student with the student ID "0001" is specified will be explained below.

The information of the student ID “0001” received by the lesson support server 10 is output to the video designation unit 46 . Based on the student ID "0001", the image specifying unit 46 selects the first image data as image data to be displayed on the display screen of the student-side terminal 3 logged in with the student ID "0001", and the other student ID "0001". 0002", "0003", and "0004", the second video data is specified as the video data to be displayed on the display screen of the logged-in student terminal 3.

The video data designated by the video designation unit 46 is transmitted to the student terminal 3 via the transmission/reception unit 44 . As a result, for example, as shown in FIGS. 7 and 8, the display unit 38 (see FIG. 4) of the student-side terminal 3 logged in with the student ID "0001" displays the first image captured by the camera 24a. Data is displayed. As a result, the student with the student ID "0001" can be made aware that he or she is being watched by the teacher, and can feel the tension of having to respond and the sense of security that the teacher cares about him/her. becomes possible. 9 and 10, video data shot by the camera 24b is displayed on the display unit 38 (see FIG. 4) of the student terminal 3 logged in with the student ID that is not the student of interest. be.

As described above, the online class system 1, the online class method, and the program according to the present embodiment have the following effects.
When a student of interest is specified on the teacher-side terminal 2, the first video data captured by the camera 24a is selected as the video data to be displayed on the display screen of the student-side terminal 3 used by the specified student. The second image data captured by the camera 24b is selected as the image data to be displayed on the display screen of the student-side terminal 3 used by the unspecified student.

As a result, it is possible to display an image on the display screen used by the student designated as the student of interest so that the teacher and the teacher can see each other. As a result, it is possible to make the noted student aware of the teacher's attention. In addition, it is possible to display an image in which the teacher's line of sight is shifted on the display screens used by the students other than the student of interest. As a result, for example, next time the student is designated as the student of interest, the video data is switched from the second video data to the first video data, so that the teacher's attention is more clearly noticed. Students can be made aware of it. As a result, it is possible to make the students feel as if the lecturer were teaching in the classroom.

In the above embodiment, the image specifying unit 46 of the lesson support server 10 specifies the first image data as the image data corresponding to the student of interest, and the second image data as the image data corresponding to the students other than the student of interest. was However, the method of selecting video data is not limited to this aspect.
For example, the orientation of the teacher's face and line of sight change from moment to moment. For this reason, for example, the direction of the teacher's face is determined by image analysis of the first video data and the second video data, and the video data closer to the video shot from the front is designated as the video data to be provided to the student of interest. may be Also, the image analysis does not necessarily have to be performed on both the first video data and the second video data, and may be performed on either one.

Further, a configuration may be adopted in which the teacher himself/herself can designate a camera for capturing video data to be transmitted to the student of interest and a camera for capturing video data to be transmitted to students other than the student of interest. For example, a setting screen is displayed on the display screen so that a camera corresponding to video data to be transmitted to the focused student and a camera for shooting video data to be transmitted to students other than the focused student can be specified. You may enable it to designate a camera.

Next, an online teaching system 1', an online teaching method, and a program according to the second embodiment of the present invention will be described.
FIG. 11 is a functional block diagram showing an example of the functions of the online class system 1' according to this embodiment. Hereinafter, the same components as those of the online class system 1 according to the first embodiment described above are denoted by the same reference numerals, and descriptions thereof are omitted, and different points are mainly described.

As shown in FIG. 11, in the online class system 1' according to this embodiment, a concentration evaluation unit 50 is provided in the student terminal 3'. The concentration evaluation unit 50 evaluates a student's concentration in class. The concentration evaluation unit 50 evaluates the class concentration based on the video data of the student acquired by the video acquisition unit 47, for example. For example, by analyzing the video data of students, if the conditions such as "the time the eyes are closed is longer than the threshold", "the time the face is facing sideways or behind is longer than the threshold", , the degree of concentration in class is determined to be low.

The concentration evaluation unit 50 may, for example, evaluate the class concentration based on the frequency of the student's input operation on the student-side terminal 3'. For example, in the student-side terminal 3', although the selection of items and the input of answers are requested, the amount of input from the input unit 37 (see FIG. 4) such as a mouse and keyboard at that time is larger than the threshold. If the number of students is small, it is assumed that the student is not concentrating on the lesson and does not solve the problem properly, or that the student is troubled by not being able to solve the problem. Therefore, when the amount of input from the input unit 37 during a certain period of time is less than the threshold value, it is determined that the student's degree of concentration in class is low.

Further, a sensor (not shown) for detecting the degree of concentration in the lesson may be provided in the student-side terminal 3', and the degree of concentration in the lesson may be evaluated based on the detected value of this sensor. An example of the sensor is a biosensor using an infrared camera or the like.

When the concentration evaluation unit 50 determines that the concentration in class is low, the concentration evaluation unit 50 transmits the student ID of the student using the student-side terminal 3 ′ to the class support server 10 ′ via the transmission/reception unit 48 . The video designation unit 46' of the class support server 10' designates the video data that the teacher's line of sight, for example, the first video data, is to be displayed on the display screen of the student-side terminal 3' that has received the student ID. do. As a result, on the display screen of the student-side terminal 3' judged to have a low degree of concentration in class, for example, the video data shown in FIGS. This makes it possible to attract the student's attention and to give the student a sense of tension.
In addition to the above example, for example, the video designation unit 46' displays the first video data and the second video data on the display screen of the student-side terminal 3' determined to have a low degree of concentration in class. It is also possible to specify the video data so that it is switched and displayed by . Such a display mode also makes it possible to give the student a sense of tension.

In addition to the above, for example, the student-side terminal 3' may emit a voice message to encourage the student's motivation, or may sound an alarm. Further, the student-side terminal 3' not only displays the teacher's image data on the display screen, but also emphasizes the teacher's image by displaying the teacher's face close-up, enclosing the teacher's image with a frame, and the like. It is good also as displaying on a display screen in such a display mode.

As described above, according to the online class system 1' and the online class method and program according to the present embodiment, when it is determined that the student's concentration level in class is low, the student side used by the student The display screen of the terminal 3' displays video data (for example, first video data) of the teacher photographed from the front. As a result, it is possible to give the student a sense of tension, and it is expected that the student's concentration will be restored.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. Various changes or improvements can be made to the above-described embodiments without departing from the gist of the invention, and forms with such changes or improvements are also included in the technical scope of the present invention. Also, the above embodiments may be combined as appropriate.

For example, in each of the above-described embodiments, the teacher terminal 2 includes the camera 24a. For example, the camera 24a may also be a camera connected via an external interface as an external device. Also, when two cameras are connected to the teacher terminal 2 as external devices in this way, one camera can be positioned at a position where the teacher's face can be photographed from the front or near the front of the teacher terminal 2, for example, The camera 24a should be installed at or near the installation position described above, and the other camera should be installed at a position where the teacher's face can be photographed from a slightly different direction, for example, at the installation position of the camera 24b described above or near it.

Further, in each embodiment, a case where video data is transmitted and received via the class support servers 10 and 10' has been exemplified and explained, but the present invention is not limited to this aspect. For example, the lesson support servers 10, 10' may be omitted, and the teacher-side terminal 2 or the student-side terminals 3, 3' may have the functions of the video designation units 46, 46' provided in the lesson support servers 10, 10'. good too.

For example, when the teacher-side terminal 2 has the function of the video designation unit 46, when the teacher designates a student of interest, the first video data is transmitted to the student-side terminal 3 used by the student, The second video data may be transmitted to the student terminals 3 used by students other than the student of interest. Further, when the teacher-side terminal 2 has the function of the video designation unit 46', the first video data may be transmitted to the student determined to have a low degree of concentration in class, in addition to the student of interest. .

Further, for example, when the student terminal 3 has the function of the video designation unit 46, the first video data and the second video data are transmitted from the teacher terminal 2 to each student terminal 3. . In this case, when a student of interest is specified by the teacher, the student ID of the student of interest is transmitted from the teacher-side terminal 2 to the student-side terminal 3 . Then, if the student-side terminal 3 has not received the student ID, it causes the display unit 38 to display the second video data. On the other hand, when the student ID has been received, the received student ID is collated with the student ID logged into its own terminal, and if the two match, the first video data is displayed on the display unit 38. and if they do not match, the second video data is displayed on the display unit 38 . Further, when the student-side terminal 3' is provided with the concentration evaluation unit 50 as in the second embodiment, in addition to the above, even when the student's concentration in class has decreased, the first video data can be processed. Displayed on the display unit 38 .

1, 1': online class system 2: teacher-side terminals 3, 3' (3a, 3b, 3c, 3d): student-side terminals 10, 10': class support servers 24a, 24b: cameras 25: external interfaces (external I /F)
26: communication unit 27: input unit 28a: display unit 28b: external monitor 34: camera 35: external interface (external I/F)
36: communication unit 37: input unit 38: display unit 41: image acquisition unit 42: student identification unit 43: transmission/reception unit 44: transmission/reception unit 46, 46': image designation unit 47: image acquisition unit 48: transmission/reception unit 50: concentration degree evaluation unit

Claims (14)

an image acquisition unit for acquiring first image data obtained by photographing a teacher's face from a predetermined angle and second image data obtained by photographing the teacher's face at an angle different from the first image data;
a student information acquisition unit that acquires student information about a student of interest to the teacher;
An online class system comprising: an image specifying unit that switches image data to be displayed on a display screen of a student terminal between the first image data and the second image data based on the student information. determining the orientation of the face of the teacher being photographed from at least one of the first image data and the second image data;
2. The online class according to claim 1, wherein the video specifying unit specifies video data to be displayed on a display screen of a student terminal from among the first video data and the second video data according to the direction of the face. system. The first image data is image data obtained by photographing the face of the teacher from an angle close to the front,
2. The online class system according to claim 1, wherein said second video data is video data obtained by photographing said teacher's face at an angle that is shifted from the front as compared with the angle of said teacher's face in said first video data. The first video data is video data captured by a camera included in a terminal operated by the teacher,
2. The online class system according to claim 1, wherein said second video data is video data externally input to a terminal operated by said teacher. Equipped with a concentration evaluation section that evaluates the student's concentration in class,
5. The online class system according to any one of claims 1 to 4, wherein the video specifying unit specifies the video data to be displayed on the display screen of the student terminal based on the student information and the class concentration level. 6. The online class system according to claim 5, wherein the concentration evaluation unit evaluates the class concentration based on video data of the student's face. 7. The online class system according to claim 5, wherein the concentration evaluation unit evaluates the class concentration based on the frequency of input operations performed by the students on the student terminals. a step of obtaining first image data obtained by photographing a teacher's face from a predetermined angle and second image data obtained by photographing the teacher's face at an angle different from the first image data;
obtaining student information about a student of interest to the teacher;
and a step of switching video data to be displayed on a display screen of a student terminal between the first video data and the second video data based on the student information. A program for causing a computer to function as the online teaching system according to any one of claims 1 to 7. an image acquisition unit for acquiring first image data obtained by photographing a teacher's face from a predetermined angle and second image data obtained by photographing the teacher's face at an angle different from the first image data;
a student identification unit that identifies a student to whom the teacher pays attention;
The first video data and the second video data for displaying the first video data, the second video data, and student information about the identified student on a display screen of a student-side terminal based on the student information. and a transmitting unit for transmitting to an external information processing device for switching between video data . A process of acquiring first image data obtained by photographing a teacher's face from a predetermined angle and second image data obtained by photographing the teacher's face at an angle different from the first image data;
a process of identifying a student of interest to the teacher;
The first video data and the second video data for displaying the first video data, the second video data, and student information about the identified student on a display screen of a student-side terminal based on the student information. processing to send to an external information processing device that switches between video data;
A program that causes a computer to run a receiving unit for receiving first image data obtained by photographing a teacher's face from a predetermined angle, second image data obtained by photographing the teacher's face at an angle different from the first image data, and student identification information; ,
video designation for comparing the received identification information of the student with the identification information of the logged-in student, and designating video data to be displayed on a display unit from the first video data and the second video data based on the verification result; An information processing device comprising: Equipped with a concentration evaluation section that evaluates the student's concentration in class,
13. The information processing apparatus according to claim 12, wherein the image designation unit designates the image data to be displayed on the display unit based on the student's identification information and the degree of concentration in class. A program for causing a computer to function as the information processing apparatus according to claim 12 or 13.

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