WO2021256670A1 - Système de cours vidéo en ligne utilisant une image partagée - Google Patents

Système de cours vidéo en ligne utilisant une image partagée Download PDF

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Publication number
WO2021256670A1
WO2021256670A1 PCT/KR2021/003606 KR2021003606W WO2021256670A1 WO 2021256670 A1 WO2021256670 A1 WO 2021256670A1 KR 2021003606 W KR2021003606 W KR 2021003606W WO 2021256670 A1 WO2021256670 A1 WO 2021256670A1
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WIPO (PCT)
Prior art keywords
video
shared
instructor
action
online
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PCT/KR2021/003606
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English (en)
Korean (ko)
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이승환
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이승환
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Publication of WO2021256670A1 publication Critical patent/WO2021256670A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/20—Education
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/27—Server based end-user applications
    • H04N21/274—Storing end-user multimedia data in response to end-user request, e.g. network recorder
    • 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

Definitions

  • the present invention is an online video lecture system, and relates to an online video lecture system for performing physical education and the like online.
  • Corona 19 virus (COVID 19) has spread around the world and many people are dying from the Corona 19 virus, and the real economy around the world is also getting worse.
  • COVID 19 coronavirus virus
  • face-to-face service providers such as sports academies
  • normal business cannot be conducted due to the government's administrative order prohibiting gatherings.
  • An object of the present invention is to provide an online video lecture means for online living sports lectures and the like using shared images.
  • An embodiment of the present invention transmits a member's action video filmed in real time of a member's action taking a class to an online education server, and uses the instructor action video, which is the instructor's lecture action, and the shared video used as a reference video for online training
  • a member terminal that receives from the server and simultaneously displays the received shared video and instructor action video on one screen, and the instructor action video recorded in real time of the instructor giving a lecture is transmitted to the online training server, Instructor terminal that receives the member action video and the same shared video displayed on the member terminal from the online education server, and simultaneously displays the received shared video and member action video in one screen, and the member action video from the member terminal and the instructor's action video is received from the instructor terminal, and the shared video used for life sports education is transmitted in real time to the member terminal together with the instructor action video, and the same shared video transmitted to the member terminal is transferred to the instructor terminal together with the member action video It may include; an online education server that transmits in real time.
  • the member terminal may simultaneously display the member's member action video in addition to the shared video and instructor action video
  • the instructor terminal may simultaneously display the instructor's instructor action video in addition to the shared video and member action video.
  • the online education server may be characterized in that it operates in a manual extraction method in which a shared image matching a member's level is selected from an instructor from among a plurality of previously stored shared images for each level and transmitted to the member terminal and the instructor terminal.
  • the online education server extracts a shared image matching a member's level from a plurality of pre-stored shared images for each level by a preset shared image extraction algorithm and transmits it to the member terminal and the instructor terminal.
  • a preset shared image extraction algorithm extracts a shared image matching a member's level from a plurality of pre-stored shared images for each level by a preset shared image extraction algorithm and transmits it to the member terminal and the instructor terminal.
  • the shared video extraction algorithm compares and analyzes the member behavior video and the shared video at the time of the most recent online video lecture for each synchronization point, and extracts the shared video to be used in education based on the image comparison analysis result. can be characterized.
  • Extracting the shared video to be used for education based on the image comparison analysis result is to compare the images by synchronizing the shared video provided when the most recent online video lecture was conducted and the member action video, which is the member's action video, at each point in time. If the similarity between the member's behavior and the behavior of the shared video is less than the preset similarity standard, the video at the same level as that of the most recent online video lecture is extracted as a shared video to be used for education. , If the similarity between the member's behaviors analyzed by comparison and analysis of the synchronized images and the behaviors of the shared video exceeds the preset similarity standard, the next level image of the level made during the most recent online video lecture is extracted as a shared image to be used for education It can be characterized as
  • online education is performed between a member and an instructor while watching a shared video together, whereby an efficient online education can be achieved.
  • online education tailored to the member can be made.
  • FIG. 1 is a block diagram of an online video lecture system using a shared video according to an embodiment of the present invention.
  • FIG. 2 is a functional block diagram of an online education server according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating an example of a screen of a member terminal according to an embodiment of the present invention.
  • FIG. 4 is an exemplary diagram in which a shared video, an instructor action video, and a member action video are all displayed on the screen of a member terminal according to an embodiment of the present invention.
  • FIG 5 is an exemplary screen view of an instructor terminal according to an embodiment of the present invention.
  • FIG. 6 is an exemplary diagram in which a shared video, an instructor action video, and a member action video are all displayed on the screen of the instructor terminal according to an embodiment of the present invention.
  • FIG. 1 is a block diagram of an online video lecture system using a shared video according to an embodiment of the present invention
  • FIG. 2 is a functional block diagram of an online education server according to an embodiment of the present invention
  • FIG. 3 is an embodiment of the present invention
  • FIG. 4 is an exemplary picture in which a shared video, an instructor action video, and a member action video are all displayed on the screen of the member terminal according to an embodiment of the present invention
  • FIG. 5 is an embodiment of the present invention
  • FIG. 6 is an exemplary picture in which a shared video, an instructor action video, and a member action video are all displayed on the screen of the instructor terminal according to an embodiment of the present invention.
  • the term "physical education for life” refers to education through the act of taking a posture, such as yoga, and in the present invention, 'yoga education' will be described as an example, but not only yoga but also life sports such as Pilates and PT health can all be included in
  • the online video lecture system using the shared video of the present invention provides online education with a wired/wireless communication network 100 that provides wired/wireless communication between a terminal and a server, and a video of member actions taken in real time by a member taking a class. It is transmitted to the server 400 and received from the online education server 400 the shared video used during training and the instructor action video, which is the instructor's lecture action, and simultaneously displays the received shared video and instructor action video in one screen.
  • the member terminal 200 and the instructor's action video captured in real time are transmitted to the online education server 400, and the same shared video displayed on the member terminal 200 and the member's action video, which is a member's listening to class, are taught online.
  • Instructor terminal 300 that is received from the server 400 and simultaneously displays the received shared video and member action video in one screen, and receives the member action video from the member terminal 200 and acts as an instructor from the instructor terminal 300 By receiving the video, the shared video used for life sports education is transmitted to the member terminal 200 together with the instructor action video in real time, and the same shared video transmitted to the member terminal 200 is transmitted to the instructor terminal 300 together with the member action video.
  • It may include an online education server 400 that transmits in real time. It will be described in detail below.
  • the wired/wireless communication network 100 is a communication network that provides wired or wireless communication between the member terminal 200 , the instructor terminal 300 , and the online education server 400 .
  • a wireless mobile communication network consisting of a base transceiver station (BTS), a mobile switching center (MSC), and a home location register (HLR) is provided.
  • BTS base transceiver station
  • MSC mobile switching center
  • HLR home location register
  • the wired/wireless communication network 100 when the wired/wireless communication network 100 is implemented as a wired communication network, it may be implemented as a network communication network, and data communication may be performed according to an Internet protocol such as TCP/IP (Transmission Control Protocol/Internet Protocol).
  • TCP/IP Transmission Control Protocol/Internet Protocol
  • the online education server 400 is a server that supports online education for non-face-to-face lectures, and has the same configuration as a conventional web server in terms of hardware, and C, C++, Java, Visual Basic, and Visual C in terms of software. It includes program modules that are implemented through various types of languages such as, etc. and perform various functions. In addition, it can be implemented using web server programs that are provided in various ways depending on operating systems such as DOS, Windows, Linux, Unix, and Macintosh on general server hardware. have.
  • the online education server 400 includes a recruitment unit, a matching unit, a class reservation unit, an online education processing unit, an evaluation unit, and a management unit to support online education between instructors and members.
  • the matching unit receives the member's request for class and matches the instructor.
  • the education processing unit of the online education server 400 of the present invention performs a function of providing images to the instructor terminal 300 and the member terminal 200, respectively, so that non-face-to-face education is performed online.
  • the education processing unit of the online education server 400 receives the member action video from the member terminal 200 and also receives the instructor action video from the instructor terminal 300 .
  • the shared video used for life sports education is transmitted to the member terminal 200 together with the instructor action video in real time, and the same shared video transmitted to the member terminal 200 is transmitted to the instructor terminal 300 together with the member action video in real time. In this way, online education is possible.
  • member action video refers to an image of a member taking an action class, such as yoga, following a yoga instructor
  • constructor action video refers to an image of an instructor giving a yoga class. This applies.
  • the shared image is a reference image used in life physical education education, for example, an image of a model taking a yoga action as a standard in yoga education.
  • These shared images are stored and provided differently for each level.
  • the shared images for each level are stored in the storage of the online education server 400, and the storage unit is a hard disk drive (Hard Disk Drive), an SSD drive (Solid State Drive), a flash memory (Flash Memory), It is a module that can input/output information such as CF card (Compact Flash Card), SD card (Secure Digital Card), SM card (Smart Media Card), MMC card (Multi-Media Card), or Memory Stick. It may be provided in the , or may be provided in a separate device.
  • CF card Compact Flash Card
  • SD card Secure Digital Card
  • SM card Smart Media Card
  • MMC card Multi-Media Card
  • Memory Stick Memory Stick
  • the member terminal 200 is a terminal used by members receiving physical education such as yoga, and although a smartphone is illustrated in the drawing as an example, not only a smartphone but also a desktop PC, a tablet PC, A slate PC, a notebook computer, and the like may be applicable.
  • the terminal to which the present invention is applicable is not limited to the above-described types, and it is natural that all terminals having a camera and capable of online communication with an external device may be included.
  • the member terminal 200 transmits, to the online education server 400 , a member action image captured in real time by a member taking a class. 3, the received shared image and the instructor's behavior image are simultaneously displayed on one screen as shown in FIG. Therefore, the member can listen to the online class while watching the instructor's action video, which is the instructor's educational behavior, as well as watching the related educational reference video, the shared video, thereby enhancing the educational effect.
  • the member terminal 200 may simultaneously display the member's own member action video as shown in FIG. 4 in addition to the shared video and instructor action video. Therefore, members do not need a separate mirror, and while watching their member behavior videos, they can determine in real time whether they are taking a yoga posture that matches the instructor and whether they are taking a yoga posture that matches the yoga posture of the model in the shared video. have.
  • the instructor terminal 300 is a terminal used by an instructor who conducts daily physical education such as yoga education, and may be any terminal equipped with a camera and capable of external communication, such as a smartphone, a laptop computer, or a desktop PC.
  • the instructor terminal 300 transmits an instructor action image captured in real time of the instructor giving a lecture to the online education server 400 .
  • a member action video which is a member's yoga action
  • a shared video identical to the shared video displayed on the member terminal 200 are received from the online education server 400, and the received shared video and member action video are displayed as shown in FIG. displayed simultaneously in one screen. Therefore, the instructor can use his/her instructor terminal 300 to check the member's yoga posture in real time by comparing it with the shared video, thereby increasing lecture efficiency.
  • the instructor terminal 300 may simultaneously display the instructor's own action video as shown in FIG. 6 in addition to the shared video and member action video.
  • the online education server 400 provides the same shared image to the member terminal 200 and the instructor terminal 300 , the shared image matching the current ability of the member must be extracted and provided.
  • One is a manual extraction method in which a shared video matching a member is selected by an instructor. That is, the online education server 400 receives a shared image matching a member's level from a plurality of previously stored shared images for each level from the instructor and transmits the selected shared image to the member terminal 200 and the instructor terminal 300 . For example, if the instructor judges that the yoga level of the student A is 5th grade, a shared image corresponding to the 5th grade is selected, and the selected 5th grade shared image is provided to both the member and the instructor.
  • the other is an automatic extraction method in which a shared image matching a member is extracted by a predetermined shared image extraction algorithm.
  • the online education server 400 extracts a shared image matching a member's level from a plurality of previously stored shared images for each level by a preset shared image extraction algorithm and transmits it to the member terminal 200 and the instructor terminal 300 .
  • This shared image extraction algorithm compares and analyzes the member behavior video and the shared video when the most recent online video lecture was conducted for each synchronization point, and extracts the shared video to be used in education based on the image comparison analysis result.
  • Extracting the shared video to be used for education based on the image comparison analysis result is image comparison analysis by synchronizing the shared video provided when the most recent online video lecture was held and the member action video, which is the member’s action video in class and, if the similarity between the member's behaviors analyzed by comparison and analysis of the synchronized images and the behaviors of the shared video is less than the preset similarity standard, the same level image as the level made during the most recent online video lecture is extracted as a shared image to be used for education, If the similarity between the member's behaviors analyzed by comparison of synchronized images and the behaviors of the shared video exceeds a preset similarity standard, the next level video of the level made during the most recent online video lecture is extracted as a shared video to be used for education .
  • the similarity is extracted by analysis, and if the extracted similarity is less than 80% of the similarity standard, the 3rd grade shared video is still extracted as the shared video to be used in this training. On the other hand, if the extracted similarity is 80% or higher, the next grade level 4 training video is extracted as a shared video to be used for this training.
  • the yoga posture of the member taken during the previous training matches the yoga posture of the model of the shared video as the standard by more than 80%, it is judged that the yoga posture was excellent and the shared video of taking the yoga posture of the next higher level is extracted. .
  • extracting the similarity by comparing images for each viewpoint is, for example, the same as the yoga posture of the model in the shared image provided at 13:45:00, assuming that comparison analysis is performed for each viewpoint in 1-minute units.
  • the first similarity is extracted by comparing and analyzing member yoga postures identified in the member video at 13:45:00.
  • the second similarity is extracted by comparing and analyzing the yoga posture of the model in the shared video provided one minute later at 13:46:00 and the member's yoga posture identified in the member's video at the same point in time, 13:46:00. .
  • each similarity is extracted every 1 minute.
  • the first, second,,,,,,N similarities are calculated, and the average of the calculated first, second,,,,,,N similarities is calculated to determine whether the average similarity value is 80% or more of the similarity standard, and Therefore, it is decided whether to extract the leveled-up shared image.

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Abstract

Selon un mode de réalisation, la présente invention peut comprendre : un terminal de membre qui transmet, à un serveur de formation en ligne, une image d'action de membre obtenue en capturant en temps réel une action d'un membre qui suit un cours, reçoit, en provenance du serveur de formation en ligne, une image d'action de professeur qui représente l'action d'enseignement d'un professeur, et une image partagée à utiliser en tant qu'image de référence, et affiche simultanément l'image partagée reçue et l'image d'action de professeur dans un seul écran ; un terminal de professeur qui transmet, au serveur de formation en ligne, l'image d'action de professeur obtenue en capturant en temps réel l'action du professeur qui donne un cours, reçoit, en provenance du serveur de formation en ligne, l'image d'action de membre qui représente l'action du membre, et la même image partagée affichée sur le terminal de membre, et affiche simultanément l'image partagée reçue et l'image d'action de membre dans un seul écran ; et le serveur de formation en ligne qui reçoit l'image d'action de membre du terminal de membre et l'image d'action de professeur du terminal de professeur, transmet, au terminal de membre en temps réel, l'image partagée à utiliser pour la formation physique dans la réalité, conjointement avec l'image d'action de professeur, et transmet, au terminal de professeur en temps réel, la même image partagée à transmettre au terminal de membre, conjointement avec l'image d'action de membre.
PCT/KR2021/003606 2020-06-19 2021-03-23 Système de cours vidéo en ligne utilisant une image partagée WO2021256670A1 (fr)

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KR10-2020-0074654 2020-06-19
KR1020200074654A KR102223946B1 (ko) 2020-06-19 2020-06-19 공유영상을 활용한 온라인 화상강의 시스템

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KR102223946B1 (ko) * 2020-06-19 2021-03-05 이승환 공유영상을 활용한 온라인 화상강의 시스템
KR102336325B1 (ko) * 2021-03-25 2021-12-06 최태수 필라테스 종합 서비스 시스템
KR102584890B1 (ko) 2021-09-13 2023-10-05 주식회사 마케팅이즈 외국어 학습용 화상 채팅 플랫폼 제공 시스템

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