WO2016190493A1 - Système de conférence et de communication vidéo distant basé sur interaction utilisant un dispositif d'affichage transparent - Google Patents

Système de conférence et de communication vidéo distant basé sur interaction utilisant un dispositif d'affichage transparent Download PDF

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Publication number
WO2016190493A1
WO2016190493A1 PCT/KR2015/011446 KR2015011446W WO2016190493A1 WO 2016190493 A1 WO2016190493 A1 WO 2016190493A1 KR 2015011446 W KR2015011446 W KR 2015011446W WO 2016190493 A1 WO2016190493 A1 WO 2016190493A1
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Prior art keywords
image
transparent display
student
remote
user
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PCT/KR2015/011446
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English (en)
Korean (ko)
Inventor
조경은
엄기현
치옥용
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동국대학교 산학협력단
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Publication of WO2016190493A1 publication Critical patent/WO2016190493A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working

Definitions

  • the present invention relates to a technology for implementing conferencing or lectures between users located remotely based on video communications, and more particularly, to an interaction based remote video communication and lecture system using a transparent display.
  • Such existing remote lecture and conferencing systems are usually based on the acquisition of images, especially the face images of participants, and the obtained images are simply displayed together with the lecture contents through the display means of the other party.
  • a mouse and a keyboard can be used as input means, but the range thereof is limited.
  • virtually no interaction occurs, and only one-way video is broadcast.
  • only the video is shared as the number of participants increases, and it has a weak point that it cannot grasp the current situation of the audience.
  • Patent Document 1 Korea Patent Publication 10-2013-0139449, Itus Education Co., Ltd., December 23, 2013 published
  • Patent Document 2 Korean Patent Publication No. 10-2010-0060289, Class On Co., Ltd.
  • the conventional remote video communication method or lecture method stays to the extent that it is possible to exchange image information centered on the face image or simple question-based response based on the text input through the keyboard. Therefore, it is intended to solve the problem that a large number of participants have limited practical interactions, and overcome the limitation that the video displayed on the display screen does not meet the needs of these consumers in meetings or lectures where demonstrations or exercises are required.
  • the remote video communication apparatus can display an image and have a light transmittance so that the front user at the front can simultaneously observe the image and the object at the rear.
  • Transparent display A rear camera detecting a movement of a rear user located at a rear of the transparent display; And a processor configured to control the rear camera to transmit a movement image of the rear user to a remote user located in a remote location in real time, and generate a feedback image based on a response received from the remote user and provide the feedback image to the transparent display.
  • the feedback image is a response of the remote user visually recognizing a motion image of the rear user received from the processor.
  • the processing unit generates a feedback image indicating supplementary opinions about the movement of the rear user, and displays the feedback image in a predetermined area on the transparent display, thereby front-side the front of the transparent display.
  • the user may be induced to recognize the overlapped feedback image corresponding to the rear object transmitted through the transparent display.
  • the processing unit continuously tracks the movement of the rear user through the rear camera, so that the processor is displayed on the transparent display in response to the movement of the rear user.
  • the position of the feedback image can be adaptively adjusted.
  • the transparent display may be viewed simultaneously in both front and rear directions, and the rear user may visually recognize the feedback image displayed on the transparent display to the feedback image.
  • the transparent display comprises: a light transmissive screen for visually recognizing objects located in opposite directions; And an image generator formed of at least one layer which generates an image according to a control signal and displays the image in both directions of the light transmissive screen.
  • the image generating unit may include two layers for generating an image deposited in opposite directions, and a first image signal and a second image signal in which the first image is inverted left and right are applied to the layers, respectively. Users located in the front and rear can provide the same image.
  • the front camera for detecting the movement of at least one front user located on the front of the transparent display; further comprising, the processing unit, the front user detected through the front camera
  • the image of the can be transmitted to the remote user in real time.
  • the remote lecture system can display an image including the contents of the lecture and has a light transmittance so that the student located in front of the object and the object located on the back Transparent display which can be observed simultaneously;
  • a rear camera which senses a movement of a training student located at the rear of the transparent display;
  • a processor configured to control the rear camera to transmit the moving image of the practice student to a lecturer located in a remote location in real time, and generate a feedback image based on a response received from the lecturer and provide the feedback image to the transparent display.
  • the feedback image is a response of the instructor visually recognizing a motion image of the training student received from the processor.
  • the processor generates a feedback image representing supplementary opinions about the movement of the training student, and displays the feedback image in a predetermined area on the transparent display, thereby providing a student located in front of the transparent display. It may be induced to be able to recognize the feedback image of the instructor overlapped in response to the rear object transmitted through the transparent display.
  • the processing unit by continuously tracking the movement of the training student through the rear camera, the lecture content displayed on the transparent display in response to the movement of the training student Alternatively, the position of the instructor feedback image may be adaptively adjusted.
  • the transparent display can be observed simultaneously in both the front and rear, and the training student to visually recognize the feedback image of the instructor displayed on the transparent display the feedback image Can be directed to correct his / her hands-on movement.
  • the transparent display includes a light-transparent screen for visually recognizing objects located in opposite directions; And an image generator formed of at least one layer which generates an image according to a control signal and displays the image in both directions of the light transmissive screen.
  • the image generating unit may include two layers for generating an image deposited in opposite directions, and a first image signal and a second image signal in which the first image is inverted left and right are applied to the layers, respectively. Students in the front and rear and hands on the practice can provide the same video.
  • the processor determines the state of the corresponding student as 'concentrated', and the face region extracted from the acquired student's image is located at the bottom.
  • the student's status is judged as 'memo', and if the face area extracted from the acquired student's image is facing away from the front or the floor for more than the threshold duration, the student's status is determined as 'distraction'. can do.
  • the warning message may draw attention of the students in front of the screen by displaying a warning image interacting with the image displayed on the transparent display or a warning image interacting with the training student observed through the transparent display. .
  • the processing unit by calculating the ratio of the student found to have a reduced concentration of concentration among the students recognized through the front camera to provide the lecturer, the lecturer, the lecture content, the It may be induced to adjust the feedback image or the warning message.
  • Embodiments of the present invention by using the transparent display by combining the actual training scene and the image on the screen to provide or introduce to the participants, it is possible to deliver more vivid meeting or lecture content to the participants located in the field, Participants located in remote locations can enhance the effectiveness of meetings or lectures by encouraging more active interactions or understanding their concentration in real time.
  • FIG. 1 is a diagram illustrating an environment in which a remote video communication or lecture system according to embodiments of the present invention is implemented based on a transparent display.
  • FIG. 2 is a block diagram illustrating an interactive based remote video communication or lecture system using a transparent display in accordance with one embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a case where a training student performs cooking training through a remote lecture system according to an exemplary embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a performing operation of an instructor who guides cooking practice through the remote lecture system of FIG. 3 according to an embodiment of the present invention.
  • 5A and 5B illustrate the structure of a transparent display adopted by embodiments of the present invention.
  • FIG. 6 is a diagram illustrating a method of controlling an image displayed on a transparent display through motion tracking in a remote lecture system according to an embodiment of the present invention.
  • FIG. 7 is a view for explaining a method of inducing students' concentration in a remote lecture system according to an embodiment of the present invention.
  • a remote video communication apparatus comprising: a transparent display capable of displaying an image and having a light transmissive so that a front user at a front side may simultaneously observe the image and an object at a rear side; A rear camera detecting a movement of a rear user located at a rear of the transparent display; And a processor configured to control the rear camera to transmit a movement image of the rear user to a remote user located in a remote location in real time, and generate a feedback image based on a response received from the remote user and provide the feedback image to the transparent display.
  • the feedback image is a response of the remote user visually recognizing a motion image of the rear user received from the processor.
  • FIG. 1 is a diagram illustrating an environment in which a remote video communication or lecture system according to embodiments of the present invention is implemented based on a transparent display, and all embodiments of the present invention may display an image on a screen and are light transmissive. It has a transparent screen having a transparent display 10 having a property that can visually identify the objects located beyond the screen is adopted.
  • a content image (which may be a graph or the like used in a meeting or lecture content) is displayed on the transparent display 10, and at least one front-side user or the like is displayed on the front of the transparent display 10.
  • the student 20 is located, and the rear user to the practice student 30 is also located at the rear of the transparent display 10. In this case, the front user to the student 20 and the rear user to the student 30 may see the other party over the screen through the transparent display 10 having light transparency.
  • FIG. 1 there are remote users or instructors 40 spaced apart from a meeting or lecture place centering on the transparent display 10.
  • the remote means that the participant is not faced through the transparent display 10, and does not necessarily mean that the remote user or the instructor 40 must be located at a physically remote location.
  • the remote user or lecturer 40 accesses and controls the transparent display 10 through his or her terminal device through network communication. Then, the remote user or instructor 40 may generate and display the necessary image on the transparent display 10 during a meeting or lecture through various interfaces or input means.
  • FIG. 2 is a block diagram illustrating an interactive-based remote video communication or lecture system using a transparent display according to an embodiment of the present invention, in which the hardware configuration and participants described above with reference to FIG. 1 are the same.
  • the transparent display 10 may display an image (which may include meeting or lecture contents) and has a light transmissive property so that the front user 20 positioned at the front side may display the image (back user) positioned at the front side and the image. Means various objects, etc.). Centering on the transparent display 10, the front user to the student 20 is located in the front, the rear user to the student 30 is located in the back. Of course, the remote user to the instructor 40 is also located in this location.
  • these participants may acquire and share their own images and motion images using the front camera 61, the rear camera 62, or the remote camera 63, respectively.
  • some of the cameras 61, 62, and 63 may be omitted depending on the needs of the implementation.
  • a rear camera (used to acquire a moving image of the rear user or the student 30) may be used.
  • 62 is preferably necessarily adopted.
  • these cameras 61, 62, and 63 adopt not only a camera that acquires pixel information but also a three-dimensional sensor or depth image acquisition means such as Kinect, thereby allowing a wider variety of inputs from participants (e.g., For example, gesture recognition or participant's concentration status recognition).
  • the processor 50 is configured to induce interaction by controlling the transparent display 10 and the cameras 61 and 62.
  • the processor 50 controls the rear camera 62 to move the rear user to the student 30.
  • the image is transmitted in real time to a remote user or instructor 40 located at a remote location, and a feedback image is generated based on a response received from the remote user or instructor 40 and provided to the transparent display.
  • the feedback image refers to the response of the remote user or the instructor 40 visually recognizing the motion image of the rear user or the student 30 received from the processing unit 50.
  • the processing unit 50 is By transmitting the images of the front user to the student 20 sensed by the front camera 61 to the remote user or the instructor 40 in real time, feedback of the participants' listening attitudes or responses may be received. That is, the remote user or the instructor 40 may answer questions based on direct video communication with the participants, and may interact with the meeting or lecture contents through gesture recognition of the front camera 61.
  • the remote user or the instructor 40 may access the remote video communication or lecture system via the remote processor 70 through the network, and provide and share his / her own image to the participants through the remote camera 63. Can be.
  • the configuration and implementation of the remote processor 70 and the remote camera 63 may blur the essence of the present invention, and thus a detailed description thereof will be omitted.
  • the remote user or instructor 40 may access a remote video communication or lecture system through a Kinect connected note PC.
  • a content database 75 for storing contents that can be utilized for conference or lecture may be provided separately.
  • FIG. 3 is a diagram illustrating a case where a training student performs cooking training through a remote lecture system according to an exemplary embodiment of the present invention.
  • the processing unit of the remote lecture system may generate a feedback image representing supplementary opinion about the movement of the rear user (practice student) and display the feedback image in a specific area on the transparent display.
  • a training student performs a cooking exercise near a training table located opposite to the rest of the students, centered on a transparent display.
  • the contents of the lecture may be displayed on the transparent display, and the displayed image may be viewed by both the practice students and the rest of the students according to the nature of the transparent display having two-way light transmission.
  • Such a transparent display can be viewed simultaneously in both front and rear directions, and allows the rear user (practice student) who visually recognizes the feedback image displayed on the transparent display to correct his / her movement based on the feedback image. To induce.
  • front users located in front of the transparent display may share overlapping feedback images in response to the rear objects (which may be student students, training tools and materials) transmitted through the transparent display.
  • the video about the student's motion is delivered to the instructor in real time, and the instructor may enlarge the motion part of the student practicing in real time with a gesture and display the wrong motion.
  • the student can check the feedback video of the instructor and correct his / her wrong movement in real time. That is, the students located in front of the transparent display can simultaneously view both the cooking scene of the training student, the contents of the lecture displayed on the transparent display, and the feedback image of the instructor, thereby obtaining improved experience and learning effects. Based on these configurations and features, it is possible to use them in meetings, lectures, and practical tests that require demonstrations or exercises.
  • FIG. 4 is a diagram illustrating a performing operation of an instructor who guides cooking practice through the remote lecture system of FIG. 3 according to an embodiment of the present invention.
  • the instructor can visually check the images of the participants (practice students and the rest of the students observing them) through the display means, and conduct lectures or supplementary opinions using the remote camera using Kinect. Can be passed.
  • the instructor can demonstrate himself by pointing out the wrong part of the practice performed by the student in real time, and can obtain this feedback image by the remote camera and send it back to the student.
  • the transmitted feedback image is displayed on the transparent display provided in the lecture room of the remote lecture system, thereby improving students' understanding.
  • FIGS. 5A and 5B illustrate a structure of a transparent display adopted by embodiments of the present invention.
  • the transparent display may visually recognize objects (people or objects) located in opposite directions of the display device.
  • an image generator 12, 13, and 14 for generating an image according to a control signal applied from the light transmissive screen 11 and the processing unit 50 to display the image in both directions of the light transmissive screen.
  • the structure of the transparent display illustrated through FIGS. 5A and 5B merely illustrates components in terms of functionalities, and the order of arrangement, arrangement, and separation distance of each component may be used in an environment and a condition in which embodiments of the present invention are implemented. It may be configured in various ways.
  • the light transmissive screen 11 plays the same role as the light transmissive film layer of the liquid crystal display device and forms and supports the display screen.
  • the image generating units 12, 13, and 14 are substantially configured to generate an image, and may be formed of at least one layer.
  • the light transmissive screen 11 is deposited on both sides of the image generating unit 12 composed of one layer. As such it will be possible to finish with a protective film or the like that can protect the image generating unit 12.
  • the light transmissive screen 11 may display one side of the image relatively darker than the image of the other side. Therefore, it is shown that the following second embodiment can solve this problem.
  • the light transmissive screen 11 is deposited on both sides of the image generators 13 and 14 having two layers, but the screen is composed of a cross section instead of two sides. On the other side, it will be possible to finish with a protective film or the like that can protect the image generating unit 13 or 14.
  • the image generators 13 and 14 may deposit two layers having directionality with respect to the image display in opposite directions, and the first image signal and the first image may be inverted left and right on the layer (meaning a mirror effect. It is preferable that the second video signals are respectively applied. Through this configuration, it is possible to provide users of the same quality image to the front and rear of the transparent display.
  • FIG. 6 is a diagram illustrating a method of controlling an image displayed on a transparent display through motion tracking in a remote lecture system according to an embodiment of the present invention.
  • the rear camera continuously tracks the movement of the rear user (training student) to adaptively position the position of the feedback image displayed on the transparent display in response to the movement of the rear user. I can regulate it.
  • the rear camera 62 such as Kinect is used to move the rear users (practice students).
  • FIG. 7 is a view for explaining a method of inducing students' concentration in a remote lecture system according to an embodiment of the present invention, and a unidirectional injection lecture in an environment where it is difficult for an instructor located at a remote location to observe the lecture listeners substantially. It has been suggested to solve the problem provided.
  • the remote lecture system further comprises a front camera for detecting the movement of at least one student located in front of the transparent display, based on the image of each student obtained through the front camera You can check your concentration and provide a warning message to students if a pattern is found that indicates your concentration has decreased.
  • Such a warning message may draw attention of the students in front of the user by displaying a warning image interacting with an image displayed on the transparent display or a warning image interacting with a training student observed through the transparent display.
  • a warning image interacting with an image displayed on the transparent display or a warning image interacting with a training student observed through the transparent display.
  • an image 17 having an interesting effect is displayed on a transparent display to identify a scene attracting students' attention.
  • the warning image may be implemented to recognize an image of an instructor displayed on a transparent display or a location of a training student over the transparent display and interact with them. For example, it is possible to display a picture of a virtual character appearing as a lecturer or a gang playing a joke on the content.
  • the type of student who is taking a lecture is one that focuses on listening to the contents of the lecture, not interested in the contents of the lecture, looking in a different direction, and writing notes while taking notes to take notes. It can be classified into three types, which can be judged according to the direction of a person's head. Therefore, the processor of the remote lecture system according to the present embodiment determines that the student's state is 'concentrated' when the face region extracted from the acquired student's image faces the front of the transparent display, and obtains the image of the acquired student.
  • the state of the student is determined as a 'memo' indicating that the student is taking notes.
  • the face region extracted from the acquired student's image is directed toward the non-frontal or the bottom beyond the threshold duration. If so, the student's status may be determined to be distraction.
  • the direction and duration of the face region can be more easily obtained when using a 3D sensor or a depth image camera such as Kinect. Since Kinect can recognize each of a plurality of users individually and process the movements simultaneously, it is preferable to have an appropriate number of sensors in consideration of the number of participating students.
  • the processing unit of the remote lecture system by calculating the ratio of the student found in the concentration concentration among the students recognized by the front camera to provide the instructor, the lecturer to the lecture content, the feedback image or the warning You can also encourage the message to be reconciled. For example, if the 'memo' state lasts for more than 2 minutes, it can be determined as a 'distracted' state that does not focus automatically. When the 'memo' state and the 'concentrated' state appear alternately, it can be recognized as 'concentrated' state, and when the state of the head movement changes for more than 2 minutes, it can be determined as 'distracted' state that is not concentrated.
  • inventions of the present invention can be implemented in computer readable code on a computer readable recording medium for controlling the presented hardware.
  • the computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored.
  • Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • the computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.
  • functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.
  • Embodiments of the present invention described above by using a transparent display as if augmented reality can be combined with the actual training scenes and lecture content on the screen to provide to students or introduce during the meeting, participants (site training) Students and other observing students, etc.) can be delivered more vividly, and the participants or instructors located in remote locations can be more interactive or enhance the effectiveness of meetings or lectures by understanding the concentration of participants in real time. You can.

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

Abstract

La présente invention concerne un système de conférence et de communication vidéo distant basé sur interaction, qui utilise un dispositif d'affichage transparent, le système de communication vidéo distant comprenant : un dispositif d'affichage transparent, qui permet d'afficher des images, a des propriétés de transmission de lumière, et permet ainsi à un utilisateur avant situé à l'avant d'observer les images et un objet situé à l'arrière en même temps ; une caméra arrière pour détecter le mouvement d'un utilisateur arrière situé derrière le dispositif d'affichage transparent ; et une unité de traitement pour commander la caméra arrière, transmettre les images de mouvement de l'utilisateur arrière à un utilisateur distant situé à un emplacement distant en temps réel, générer une image de rétroaction sur la base d'une réponse reçue en provenance de l'utilisateur distant, et la fournir au dispositif d'affichage transparent.
PCT/KR2015/011446 2015-05-26 2015-10-28 Système de conférence et de communication vidéo distant basé sur interaction utilisant un dispositif d'affichage transparent WO2016190493A1 (fr)

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