KR20110090001A - Method and apparatus for video conferencing - Google Patents

Method and apparatus for video conferencing Download PDF

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Publication number
KR20110090001A
KR20110090001A KR1020100009549A KR20100009549A KR20110090001A KR 20110090001 A KR20110090001 A KR 20110090001A KR 1020100009549 A KR1020100009549 A KR 1020100009549A KR 20100009549 A KR20100009549 A KR 20100009549A KR 20110090001 A KR20110090001 A KR 20110090001A
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KR
South Korea
Prior art keywords
screen
participants
video
data
image processor
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KR1020100009549A
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Korean (ko)
Inventor
명인식
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삼성전자주식회사
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Priority to KR1020100009549A priority Critical patent/KR20110090001A/en
Publication of KR20110090001A publication Critical patent/KR20110090001A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

PURPOSE: A video conference device and a method thereof are provided to improve the communication concentration and efficiently progresses the video conference. CONSTITUTION: An image process unit(420) creates information screen which is shared by participants and a screen related with a speaker. The image process unit controls the density of the screen by regulating the transparency of the data screen. A control unit(440) analyzes the situation of a plurality of participants and controls the image process part in order to regulate the density of the information display screen.

Description

Video call device and its method {Method and Apparatus for video conferencing}

TECHNICAL FIELD The present invention relates to a video call device and a method thereof, and overlaps and displays an image and content, and to a video call device and a method for displaying and controlling the intensity of the image and content in real time in consideration of a user's situation. It is about.

Decentralization and globalization have led to an ever-increasing demand for communication between people located remotely. One of the technologies currently attracting attention to address these needs is video conferencing such as video conferencing and telepresence. However, the existing video conferencing mainly aims to transmit the other party's appearance in high definition and high sound quality, and the same user interface and function as the existing PC environment in sharing screens and data transmission for efficient work. To provide. For example, traditional video conferencing uses a screen divided into a video screen showing the person's appearance and a screen for data shared during a meeting. Therefore, in such an environment, users have to alternately view video and material screens, so that their eyes are distracted and the speaker himself cannot perform a specific action pointing to a specific part of the material, thereby reducing the immersion of the meeting.

In one aspect, a video call apparatus for a video call of a plurality of participants, the image processing unit for generating a video screen shared by the plurality of participants and a video screen associated with the speaker of the plurality of participants; A controller configured to analyze the situation of the plurality of participants and control the image processor to adjust the intensity of the data screen or the video screen based on an analysis result; And a communication unit configured to transmit the data screen or the video screen of which the intensity is adjusted to the display panel of the plurality of participants.

The image processor may adjust the degree of darkness by adjusting the transparency of the data screen or the image screen, or adjust the degree of darkness by changing the order of the layers in which the material screen is displayed and the layers in which the image screen is displayed. .

When a part of the material screen displayed on the display panel of the plurality of participants is selected by the user interface, the controller may control the image processor to process the selected material screen darker than the image screen.

The image processor may darken the selected data screen at a speed faster than the reference speed.

When a part of the selected data screen is deselected, the controller may control the image processor to process the thickened data screen to a previous state.

The apparatus may further include a sound processing unit configured to process a sound signal corresponding to the speech or the dialogue of the plurality of participants as an outputable signal, wherein the controller may be configured to display the data screen or The image processor may be controlled to adjust the degree of darkness of the image screen.

The controller may control the image processor to process the image screen to be darker than the data screen when the utterance or conversation of the plurality of participants is maintained for a predetermined time.

The controller may control the image processor to process the data screen darker than the video screen when silence is maintained between the plurality of participants for a predetermined time.

The controller may control the degree of darkening based on the movements of the plurality of participants.

The communication unit receives a video of the plurality of participants through a photographing apparatus, and the controller analyzes the received video and if the movement of at least one of the plurality of participants is greater than a reference value, the video screen is larger than the data screen. The image processing unit may be controlled to process thickly.

The controller may control the image processor to process the data screen to be darker than the video screen when at least one of the plurality of participants is less than the reference value.

When a part of the material screen displayed on the display panel of the plurality of participants is selected by the user interface, the controller enlarges a part of the selected material screen and processes the enlarged part to be darker than the image screen. Can be controlled.

In one aspect, a video call method for a video call of a plurality of participants, analyzing the situation of the plurality of participants, based on the analysis result of the data screen or the plurality of participants of the plurality of participants to share the speaker Adjusting the intensity of the image screen associated with the image; And generating a data screen or a video screen of which the intensity is adjusted and transmitting the same to the display panel of the plurality of participants.

In the adjusting step, the degree of darkness may be adjusted by adjusting the transparency of the data screen or the image screen, or by changing the order of the layers in which the material screen is displayed and the layers in which the image screen is displayed. .

In the adjusting step, when a part of the material screen displayed on the display panel of the plurality of participants is selected by the user interface, the selected material screen may be darker than the video screen.

In the adjusting step, when a part of the selected data screen is deselected, the thickened data screen may be adjusted to the previous state.

In the adjusting, the degree of intensity of the data screen or the video screen may be adjusted based on the time at which the plurality of participants speak or talk.

The adjusting may include adjusting the darkness based on the movements of the plurality of participants.

In the adjusting step, when a part of the material screen displayed on the display panel of the plurality of participants is selected by the user interface, the part of the selected material screen may be enlarged and the enlarged part may be darker than the image screen. .

According to the video call apparatus and its method, it is possible to simultaneously display the material to be shared on the video playback screen instead of the separate screen during the video conference. You can adjust it according to the situation. As a result, data and video images to be shared can be effectively displayed on one screen in a video conferencing and telepresence environment that is rapidly expanding, thereby greatly improving communication immersion and efficiently conducting meetings.

In addition, according to the video call apparatus and method thereof, the context of the participants participating in the video conference is analyzed through information obtained through a microphone, a touch screen, a photographing apparatus, and the like, and concentrated on the data screen based on the analysis result. It can adjust the screen status automatically and in real time by judging whether it is focused on the video screen or by focusing.

1 and 2 illustrate an example of a video call system to which a video call device is applied;
3 and 4 are block diagrams showing an example of a video call device for a video call of a plurality of participants;
5 is a view showing a case where a data screen is clearly displayed than an image screen;
6 is a view showing a case where an image screen is displayed more clearly than a material screen;
7 is a flowchart illustrating a video call method for a video call of a plurality of participants, and
FIG. 8 is a flowchart for describing operation 730 of FIG. 7 in more detail.

Hereinafter, with reference to the accompanying drawings will be described in detail.

1 and 2 illustrate an example of a video call system to which a video call device is applied.

The video call system is a system for providing a video call service of a plurality of participants or a plurality of groups, and FIGS. 1 and 2 illustrate a system for a video call service between two groups. T1 and T2 are participants of different groups participating in the video call service.

Referring to FIG. 1, the video call apparatus 100 receives moving image data of the participant T1 obtained from the photographing apparatus 110, processes the video data into a viewable signal, and transmits the processed video signal to the projector 120. The projector 120 projects and displays the received video data on the screen 130 and outputs the same through a speaker (not shown).

In addition, the video call apparatus 100 receives moving image data of the participant T2 obtained from the photographing apparatus 140, processes the video data into a viewable signal, and transmits the processed video signal to the projector 150. The projector 150 projects and displays the received video data on the screen 160 and outputs the same through a speaker (not shown). The screens 130 and 160 may be transparent screens such as polarizing films.

Referring to FIG. 2, the video call device 400 is provided for each group. Since the video call apparatuses 200 and 210, the imaging apparatuses 110 and 140, and the projectors 120 and 150 of FIG. 2 are the same as those of FIG. 1, detailed descriptions thereof will be omitted. The first video call apparatus 200 receives video data of the participant T1 transmitted from the photographing apparatus 110 and transmits the video data to the projector 120. The second video call device 210 receives video data of the participant T2 transmitted from the photographing device 140 and transmits the video data to the projector 150. The material screen shared by the participants T1 and T2 may be provided to the projectors 120 and 150 from the video call apparatuses 200 and 210. The photographing apparatus 110 or 140 may receive sound data of the participants T1 and T2 using a microphone (not shown).

The data screens displayed on the screens 130 and 160 of FIG. 1 and FIG. 2 or the video screens of the participants T1 and T2 may be displayed with their darkness adjusted according to the situation of the participants T1 and T2.

3 is a block diagram illustrating an example of a video call apparatus for a video call of a plurality of participants.

Referring to FIG. 3, the video call apparatus 300 includes an image processor 310, a controller 320, and a communicator 330. The video call device 300 may be one of the devices 100, 200, and 210.

The image processor 310 processes a data screen shared by a plurality of participants and an image screen related to a speaker (for example, T1) among the plurality of participants as displayable signals. In addition, the image processor 420 may process the image screen of the participants T2 in the group to which the speaker T1 does not belong as a signal that can be displayed on the screen 160 of the group to which the speaker T1 belongs. The data screen may be displayed on the screens 130 and 160 through the projectors 120 and 150. This allows multiple participants to share the same footage.

The controller 320 analyzes the situation or meeting concentration of the plurality of participants including the speaker T1 and controls the image processor 420 to adjust the intensity of the data screen or the video screen based on the analysis result. The intensity of the data screen or video screen may mean either clarity or transparency.

The communicator 330 may transmit the data screen or the video screen whose darkness is adjusted by the image processor 420 to the screen 130 of the other participant T2. In addition, under the control of the controller 440, the communicator 430 transmits the video screen, which is the participant T2, to the screen 160 of the speaker T1 along with the material screen.

4 is a block diagram illustrating another example of a video call apparatus for a video call of a plurality of participants.

Referring to FIG. 4, the video call apparatus 400 includes a sound processor 410, an image processor 420, a communication unit 430, and a controller 440. The video call device 400 may be one of the devices 100, 200, and 210.

The sound data obtained by photographing the speaker T1 by the photographing apparatus 110 is received through the communication unit 430. The sound processor 410 may process (eg, remove noise after amplification) in a form in which the received sound data may be output from the speaker. The processed sound data is provided to the group of the other participant T2 and the speaker T1 through the communication unit 430 and the projectors 120 and 150.

The image processor 420 may process a material screen shared by the plurality of participants and an image screen related to the speaker T1 among the plurality of participants as displayable signals. In addition, the image processor 420 may signal-process the video screens of the participants T2 in the group to which the speaker T1 does not belong.

The image screen related to the speaker T1 is an image obtained by the photographing apparatus 110 by capturing the speaker T1, and the screen 130 passes through the photographing apparatus 110 → the video call apparatus 400 → the projector 120. Is displayed on the display panel 131. The video screen of the participants T2 in the group to which the speaker T1 does not belong is an image obtained by the photographing apparatus 140 by capturing the speaker T2, and the photographing apparatus 140 → the video call apparatus 400 → the projector. The display panel 131 is displayed on the display panel 131 via 150. The screen 130 includes a display panel 131 displaying various screens and a touch screen unit 132 that receives a user's touch input.

The material screen shared by the participants T1 and T2 may be stored in the video call device 400 or transmitted from an external device (for example, a server), and may be screened through the projectors 120 and 150. , Or may be output to the speaker. This allows multiple participants to share the same footage.

The controller 440 analyzes the situation of the plurality of participants T1 and T2 including the speaker T1 and controls the image processor 420 to adjust the intensity of the data screen or the video screen based on the analysis result. do. The situation of the participants T1 and T2 may be the video call concentration of the speaker T1 and the other participant T2. The controller 440 analyzes and determines whether the participants T1 and T2 are focusing on the material screen displayed on the screens 130 and 160 or the video screen, and automatically determines the degree of the material screen or the video screen. And, you can adjust in real time.

The image processor 420 may adjust the darkness of the data screen or the video screen by using one of the following two methods.

First, the image processor 420 may adjust the degree of darkness by adjusting the transparency of the data screen or the image screen. For example, when the image screen is to be displayed more clearly and clearly, the image processor 420 may process the image screen to be nearly opaque by lowering the transparency of the image screen or increasing the transparency of the data screen.

Second, the image processor 420 may adjust the degree of darkening by changing the order of the layers in which the material screen is displayed and the layers in which the image screen is displayed. When the image processing unit 420 is to display the image screen more deeply and distinctly, the image processing layer may be software-processed so that the layer of the image screen is displayed in front of the screen 130 and the material screen layer is displayed behind the image screen.

[Table 1] shows an example of the condition for adjusting the intensity of the video screen according to the situation of the participants and the adjustment of the intensity accordingly.

first
ranking The context of the participant Condition Darkness of the video screen (e.g. transparency) One Screen input of both participants A1) Select part or all of data screen by touching screen or mouse Quickly and transparently processes the video screen (makes the data screen clearly visible) A2) Deselection of selected data screen Restore video to original transparency 2 Voice of both participants from microphone A3) If the talks or conversations of both participants are continuous Process video screen more and more opaquely (make the video screen clearly visible) A4) When the silence of both participants exceeds a certain time Processing video screen more and more transparently (to make the data screen clearly visible) 3 Photographing device
Participant movement acquired through A5) When the movement is greater than the reference value Process video screen more and more opaquely (make the video screen clearly visible) A6) When the movement is less than the reference value Processing video screen more and more transparently (to make the data screen clearly visible)

A table as shown in Table 1 may be stored in the video call device 400. The controller 440 controls the image processor 420 to adjust the degree of darkness of the video screen according to the condition of the participant using the conditions shown in Table 1 below. Priority in Table 1 allows the participant's situation to be adjusted according to higher prioritized conditions (eg A3) if conditions A3 and A5 occur simultaneously. Used.

Referring to [Table 1], if some of the data screens displayed on the screens 130 and 160 of the participants T1 and T2 are selected by the user interface, the controller 440 may determine that this corresponds to condition A1. have. Accordingly, the controller 440 may control the image processor 420 to process the selected material screen to be displayed darker than the image screen. In the case of condition A1, it may be determined that participants T1 and T2 are more focused on the data screen.

The image processor 420 may process the entirety of the selected material screen or a part of the material screen to be displayed at a higher speed than the reference speed. The reference speed may be an average processing speed that adjusts the set intensity or the default processing speed. The user interface may be a device such as a touch screen unit 132 of the screens 130 and 160 or a mouse or a keyboard.

In this case, the controller 440 may optionally control the image processor 420 to enlarge a portion of the selected data screen and to process the enlarged portion to be displayed darker than the image screen.

If all or part of the selected data screen is deselected, this corresponds to condition A2. Therefore, the controller 440 may control the image processing unit 420 to restore the data screen processed to be displayed in a dark state to a previous state.

In addition, the controller 440 controls the sound processor 410 to process sound signals corresponding to speeches or conversations of the participants T1 and T2 including the speaker T1 as outputable signals. The controller 440 may control the image processor 420 to adjust the degree of intensity of the data screen or the video screen based on the time at which the participants T1 and T2 speak or talk.

For example, the controller 440 may be configured to process the video screen to be displayed darker than the data screen because the participant T1 or T2 maintains more than the set time t1. Control 420. As a result, the appearance of the speaker T1 may be displayed on the screen 130 in a darker manner. On the other hand, if silence is maintained between the plurality of participants for a predetermined time t2 or more, this corresponds to condition A4. Therefore, the controller 440 may control the image processor 420 to process the data screen to be displayed darker than the video screen. Can be.

In addition, the controller 440 may control the intensity of the data screen or the video screen based on the movements of the participants T1 and T2. For example, the communication unit 430 receives the video of the participants (T1, T2) through the recording device (110, 140).

The controller 440 analyzes the received video of each participant (T1, T2) to determine the movement of at least one of the participants (T1, T2), and if the determined movement is greater than the set reference value, this corresponds to condition A5 The image processing unit 420 is controlled to display the image screen darker than the data screen. On the other hand, if the movement of at least one of the participants T1 and T2 is smaller than the set reference value, this corresponds to condition A6, so that the controller 440 controls the image processor 420 to process the data screen darker than the image screen. .

The reference speed, the reference value, and the set time t1 and t2 are values set in the design stage of the video call device 400 and may be changed by a user or an administrator. In addition, activation of a mode for adjusting and displaying the intensity in real time may be selected by a user or an administrator.

As described above, the communicator 430 may transmit the data screen or the video screen whose darkness is adjusted by the image processor 420 to the projector 120 of the plurality of participants T2. In addition, the communication unit 430 transmits an image screen of the counterpart participant T2 to the projector 150 of the speaker T1 under the control of the controller 440. As a result, the image screen and the data screen may be overlapped and displayed by the projectors 120 and 150 at the same time on the screens 130 and 160. In this case, the video screen may be displayed on the screens 130 and 160 in a darker and clearer manner than the material screen, or the data screen may be displayed in darker and clearer than the video screen in real time according to the situation of the participants T1 and T2. have.

5 is a diagram illustrating a case where a data screen is clearly displayed than a video screen, and FIG. 6 is a diagram showing a case where a video screen is clearly displayed than a data screen. As described above, the image processing unit 420 may adjust the degree of darkness by adjusting the transparency of at least one of the image screen or the material screen or the display order.

7 is a flowchart illustrating a video call method for a video call of a plurality of participants.

In operation 710, the controller 440 processes the data screen and the video screen to be displayed on the screens 130 and 160. The controller 440 transmits the video screens of the counterparts acquired through the photographing apparatuses 110 and 140 to the projectors 120 and 150, respectively, and transmits the same material screen to each of the projectors 120 and 150 to display the screen 130. 160).

In operation 720, the controller 440 may analyze the situation of the participants T1 and T2, that is, the concentration of the meeting. In step 720, the situation of the participants (T1, T2) is selected whether the data screen, the participants T1, T2, or the duration of the conversation or the degree of movement of the participants (T1, T2), and [Table 1 Can be analyzed based on a condition table such as].

If it is determined in step 730 that the concentration of at least one material screen among the participants T1 and T2 including the speaker T1 is large, in step 740, the control unit 440 displays the data screen darker than the video screen. The image processor 420, the communicator 430, and the projector 120 may be controlled to be able to control the image processor 420.

In contrast, if it is determined in step 730 that the concentration of the participants T1 and T2 including the speaker T1 is high in the video screen, in step 750, the controller 440 may display the video screen darker than the data screen. The image processor 420, the communicator 430, and the projector 120 may be controlled.

FIG. 8 is a flowchart for describing operation 730 of FIG. 7 in more detail.

If some of the material screens displayed on the screens 130 and 160 are selected by the user interface in step 800, in step 810, the controller 440 determines that the situation of the participants T1 and T2 is determined by the condition A1 of Table 1. It can be judged as Accordingly, the controller 440 executes step 740.

In contrast, in step 820, when the selection of the material screen selected in step 800 is released, in step 830, the controller 440 may determine that the situation of the participants T1 and T2 corresponds to condition A2.

In operation 840, the controller 440 may control the image processor 420 to restore the processed data screen to be displayed in a dark state.

In addition, in step 850, when the speaking or conversation of the participants T1 and T2 continues for more than the set time t1, in step 850, the controller 440 may determine the situation of the participants T1 and T2. It determines with this condition A3. Accordingly, the controller 440 executes step 750.

On the other hand, if the silence is maintained for more than the set time t2 between the participants T1 and T2 in step 850, in step 870, the controller 440 determines that the situation of the participants T1 and T2 corresponds to condition A4. I think that. Accordingly, the controller 440 executes step 740.

In addition, in step 880, if the movement of at least one of the participants T1 and T2 is greater than a set reference value, in step 890, the controller 440 determines that the condition of the participants T1 and T2 is determined by the condition A5. Judging from this. Accordingly, the controller 440 executes step 750.

On the other hand, if the movement of at least one of the participants T1 and T2 is smaller than the set reference value in step 880, in step 895, the controller 440 determines that the conditions of the participants T1 and T2 are conditional. Judging from A6. Accordingly, the controller 440 executes step 740.

The technology related to the example of the video call apparatus and the video call method described above is applied to the field of video conferencing, telepresence, and immersive communication to display images and contents together, and to adjust the intensity of the images and contents in real time in consideration of the user's situation. Can be displayed.

In addition, the video call apparatus and the video call method described above can be applied to video chat of a PC. For example, you can display the other party's video translucently on the desktop of the PC monitor, and adjust the transparency of the other party's video through the information input through the camera, microphone and mouse click to achieve the same effect in the video chat on the PC. have.

Methods according to an embodiment of the present invention can be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

400: video call device 410: sound processor
420: image processing unit 430: communication unit
440: control unit

Claims (22)

In the video call device for a video call of a plurality of participants,
An image processor for generating a material screen shared by the plurality of participants and an image screen related to the speaker among the plurality of participants;
A controller configured to analyze the situation of the plurality of participants and control the image processor to adjust the intensity of the data screen or the video screen based on an analysis result; And
The communication unit for transmitting the data screen or the video screen of the adjusted dark degree to the display panel of the plurality of participants
Video call device comprising a. The method of claim 1,
And the image processor controls the degree of darkness by adjusting the transparency of the data screen or the video screen. The method of claim 1,
And the image processor adjusts the degree of darkness by changing the order of the layer on which the material screen is displayed and the layer on which the image screen is displayed. The method of claim 1,
And when a part of the material screen displayed on the display panel of the plurality of participants is selected by the user interface, the controller controls the image processor to process the selected material screen darker than the video screen. The method of claim 4, wherein
And the image processor darkens the selected data screen at a speed faster than a reference speed. The method according to claim 4 or 5,
And when a part of the selected data screen is deselected, the controller controls the image processor to process the thickened data screen to a previous state. The method of claim 1,
And the controller is configured to control the image processor to adjust the intensity of the data screen or the video screen based on the time at which the speaking or conversation of the plurality of participants is maintained. The method of claim 7, wherein
And the controller controls the image processor to process the image screen to be darker than the data screen when the utterance or conversation of the plurality of participants is maintained for a predetermined time. The method according to claim 7 or 8,
And the controller controls the image processor to process the data screen darker than the video screen when silence is maintained between the plurality of participants for a predetermined time. The method of claim 1,
The controller is configured to control the degree of darkening based on the movements of the plurality of participants. The method of claim 10,
The communication unit receives a video of the plurality of participants through a photographing apparatus, and the controller analyzes the received video and if the movement of at least one of the plurality of participants is greater than a reference value, the video screen is larger than the data screen. And a video caller controlling the image processor to process the image thicker. The method of claim 10,
And the controller controls the image processor to process the data screen to be darker than the video screen when at least one of the plurality of participants is less than the reference value. The method of claim 1,
When a part of the material screen displayed on the display panel of the plurality of participants is selected by the user interface, the controller enlarges a part of the selected material screen and processes the enlarged part to be darker than the image screen. Video call device to control. In the video call method for a video call of a plurality of participants,
Analyzing the situation of the plurality of participants, and adjusting the intensity of the video screen shared by the plurality of participants or the video screen associated with the speaker among the plurality of participants based on the analysis result; And
Generating a data screen or a video screen of which the intensity is adjusted and transmitting the same to the display panel of the plurality of participants;
Video call method comprising a. The method of claim 14,
The adjusting step is a video call method for adjusting the degree of darkness by adjusting the transparency of the data screen or the video screen. The method of claim 14,
The adjusting may include changing the order of the layers in which the material screen is displayed and the layers in which the video screen is displayed to adjust the darkness. The method of claim 14,
The adjusting step,
And adjusting a portion of the material screen displayed on the display panel of the plurality of participants by the user interface to make the selected material screen darker than the video screen. The method of claim 17,
The adjusting step,
And when a part of the selected data screen is deselected, adjusting the thickened data screen to a dark state of a previous state. The method of claim 14,
The adjusting step,
And controlling the intensity of the data screen or the video screen based on the time at which the plurality of participants speak or talk. The method of claim 14,
The adjusting step,
And controlling the intensity of the video based on the movement of the plurality of participants. The method of claim 14,
The adjusting step,
And when a part of the material screen displayed on the display panel of the plurality of participants is selected by the user interface, enlarges a part of the selected material screen, and adjusts the enlarged part to be darker than the video screen. A computer-readable recording medium for recording a program for executing the method of any one of claims 14 to 21 on a computer.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9137487B2 (en) 2012-12-17 2015-09-15 Samsung Electronics Co., Ltd. Apparatus and method for providing video call in portable terminal
US10044977B2 (en) 2016-01-06 2018-08-07 Samsung Electronics Co., Ltd. Display apparatus and control methods thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9137487B2 (en) 2012-12-17 2015-09-15 Samsung Electronics Co., Ltd. Apparatus and method for providing video call in portable terminal
US10044977B2 (en) 2016-01-06 2018-08-07 Samsung Electronics Co., Ltd. Display apparatus and control methods thereof
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