WO2024101487A1 - Procédé d'enregistrement de cours pour maintenir une résolution d'origine et réduire à un minimum une taille de fichier - Google Patents

Procédé d'enregistrement de cours pour maintenir une résolution d'origine et réduire à un minimum une taille de fichier Download PDF

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Publication number
WO2024101487A1
WO2024101487A1 PCT/KR2022/017765 KR2022017765W WO2024101487A1 WO 2024101487 A1 WO2024101487 A1 WO 2024101487A1 KR 2022017765 W KR2022017765 W KR 2022017765W WO 2024101487 A1 WO2024101487 A1 WO 2024101487A1
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WO
WIPO (PCT)
Prior art keywords
lecture
recording
information
lecturer
voice
Prior art date
Application number
PCT/KR2022/017765
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English (en)
Korean (ko)
Inventor
박상욱
이인호
김체호
Original Assignee
(주) 이즈커뮤니케이션즈
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Publication of WO2024101487A1 publication Critical patent/WO2024101487A1/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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/8543—Content authoring using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback

Definitions

  • This invention relates to a method of recording a lecture that maintains the original resolution and minimizes the file size. Specifically, the entire lecture is recorded while maintaining the resolution of the content, textbooks, or instructor's writing used in the lecture in the original state. This is about a method to record lectures by minimizing the size of data.
  • the lecture is recorded and delivered to viewers.
  • the lecturer writes it on a board or in a textbook, etc.
  • the camera captures it and saves it on the server as a multimedia file containing audio and video.
  • the learner receives the multimedia file from the server and plays it with a program that can play the multimedia file to watch the lecture. I do it.
  • Republic of Korea Patent Publication No. 10-1421066 discloses an invention titled 'System, method, and recording medium on which computer programs are recorded for providing multimedia content including audio files.
  • the invention in Document 1 provides a system for generating synthetic content including videos, photos, and voices.
  • synthesized content is created by combining videos or photos with audio related to them.
  • the lecture data forms a multimedia file combining video and audio, resulting in an excessive file size, and in particular, it is difficult to check text or images in the video included in the file. Even if the image is enlarged for this purpose, there is a problem that it is difficult to check the text or image due to the decrease in resolution.
  • Republic of Korea Patent Publication No. 10-1845390 discloses an invention titled 'Online learning coaching device and method based on learning video files obtained using an electronic pen.
  • the invention in Document 2 proposes a method of synchronizing the movement data and voice data of the electronic pen used in lectures to create a learning video file and providing this file to users in real time in a streaming manner.
  • the multimedia file has a very large file size, which reduces the storage capacity of the server. It must be very large and will act as a large load on the network transmitting the file or the recipient's computer.
  • This invention seeks to provide a method of recording lectures that maintains the original resolution and minimizes the file size.
  • the purpose of this invention is to maintain the resolution of the content used in the lecture or the instructor's writing in the original state while recording the lecture in the file.
  • the goal is to provide a way to record lectures while minimizing the size.
  • the problem to be solved by this invention is, according to this invention, an input means for inputting events performed by a lecturer and actions related to the lecture, a video recording element for recording an image of the act of lecture, and an audio recording element for recording the lecturer's voice.
  • This is achieved by a lecture recording method of recording a lecture using a lecture recording system having recording means.
  • the lecture recording method according to this invention is:
  • Event information indicating the operation of elements that indicate various input actions by the lecturer to the lecture recording system writing information about the lecturer's act of writing on the lecture board or, voice information about the lecturer's lecture voice, and the lecturer's lecture status. Forming the captured video information and information about the teaching materials used by the lecturer into separate files,
  • each file as data in a hypertext markup language along with time information regarding the information stored in each file;
  • HTML Hypertext Markup Language
  • the various actions of the lecturer, teaching materials, audio of the lecturer's lecture, and video of the state of giving the lecture are stored as separate files, so the capacity of the data saved when recording data about this lecture is saved.
  • the capacity of the data saved when recording data about this lecture is saved.
  • the resolution of the lecture video or textbook is maintained as the original when playing the lecture based on the lecture recording data in the future, so even if the user wants to view the video or textbook by enlarging it, the resolution is high. You can watch it in high resolution.
  • the lecturer's various input actions into the lecture recording system are implemented to include the act of changing the page of the textbook used for the lecture, operating information about the computer used for the lecture, and entering information about the computer used for the lecture. It can be.
  • this event information is stored as a separate file, the recorded file is not stored and played as a large multimedia file, but various data are extracted and played back from each file according to the event information, so the size of the lecture recording file is reduced. Minimized and easy to reproduce.
  • the video recording method according to the invention includes:
  • the writing information may include information about the instructor's act of marking images or characters on textbooks or boards used in lectures.
  • Figure 1 is a diagram conceptually showing the configuration of hardware required to implement one embodiment of the lecture recording method according to this invention.
  • Figure 2 is a diagram conceptually showing the configuration of hardware for recording lectures according to this invention.
  • the method of this invention and the embodiments of this invention are related to lectures, and the term lecture explained in this specification refers to the teaching of academics by a teacher to students at an educational institution such as a school. It does not only mean conveying related content, but refers to all cases where the person who owns or acquires the information conveys it to the learner as the subject who wants to accept the information.
  • the term instructor is not limited to teachers, and the term learner is not limited to students.
  • Figure 1 shows an information transmission system between an information device and an information device for creating, storing, and playing a recorded lecture according to a lecture recording method according to an embodiment of the present invention.
  • the instructor computer 50 refers to an information device that allows the instructor to give a lecture and generate and store various contents and information related to the lecture. Audio information, video information, event information, various operation information of the instructor, and information on the teaching materials used by the instructor generated during the instructor's lecture are recorded as information by the means described in FIG. 2 and input into the instructor's computer 50. It is input through the web server (3) of the lecture server (1) through the network and stored in the database (2).
  • a learner wants to take a lecture by playing a recorded lecture, the learner connects to the lecture server (1) using his or her computer (6), and the lecture server (1) accesses the database through the web server (3).
  • the data related to the lecture recording stored in (2) is provided as HTML to the learner's computer (6), and the learner plays the lecture through a web browser on his or her computer (6).
  • a lecture recording system will be described as a configuration of hardware for recording an instructor's lecture.
  • the lecture recording system includes a screen 20 as a display device, a projector 10 that projects an image on the screen, and an infrared pen as an information input means that is held and used by the instructor and is configured to emit infrared light from the tip of the screen by contacting the screen.
  • a screen 20 as a display device
  • a projector 10 that projects an image on the screen
  • an infrared pen as an information input means that is held and used by the instructor and is configured to emit infrared light from the tip of the screen by contacting the screen.
  • it is composed of a camera device 40 configured to capture a reflected image reflected from the screen 20, and a computer 50 to which the camera device and a projector are connected.
  • the projector 10 has a typical configuration that generates or reproduces images such as the screen of a program running on the computer 50 or various presentation contents and transmits them to the projector 10.
  • the screen 20 is a regular screen that is installed on the wall of a classroom or conference room and can project and display images as needed.
  • the display device referred to in this specification is not limited to the screen 20 and the projector 10, but is connected to the computer 50 as an external device, such as an LCD monitor, and is a screen generated or reproduced by the computer 50. It can also be configured to display .
  • the camera device 40 is arranged to take pictures toward the screen 20.
  • the camera device 40 like a conventional camera, is a lens mechanism that focuses incident light on an imaging element, and an imaging element that converts the light incident and focused through the lens mechanism into an electrical signal, and includes a CMOS element and an electrical signal from the CMOS element. It is composed of a memory and a processor that processes and stores video data.
  • the infrared pen 30 is positioned close to the screen, for example, and is used by an instructor conducting a presentation or lecture using an image projected on the screen, such as an action of switching or stopping the image projected on the screen. It is used to control the computer 50 and display characters or figures on the screen.
  • the infrared pen 30 is provided with an infrared light-emitting element at the tip, etc., and emits infrared light by approaching or contacting the screen 20 or by the instructor's operation.
  • a laser pointer may be used, or infrared light parallel to the surface of the screen 20 may be irradiated so that the infrared light is reflected from the instructor's fingers.
  • the instructor's voice is input to the computer 50 through the microphone 60.
  • the microphone 60 may be worn or held by an instructor, and may be provided on the computer as a peripheral device of the computer or may be installed at any location in the classroom.
  • the screen generated by the computer 50 or the image or video played back is transmitted to the projector 10 and projected on the screen 20 through the projector 10.
  • the images displayed on such a screen may be teaching materials used by the instructor.
  • the camera 40 captures the screen 20, and the captured image is transmitted to and stored in the computer.
  • the instructor's voice input through the microphone 60 is also input to the computer 50 and stored as voice data.
  • the instructor can cause the infrared pen 30 to emit light by touching a specific point on the screen projected on the screen.
  • the infrared light from the infrared pen 30 is irradiated to the screen 20 so that the image of the infrared light is included in the screen of the image captured by the camera 40, and the computer 50 displays the infrared light from the screen of the image captured by the camera.
  • the image is extracted, the coordinates of the image are calculated, and it is determined that there is information input by the instructor at the point of the coordinates.
  • a series of images of infrared light resulting from this movement are coordinates in a series of screens of images transmitted from the camera 40 to the computer.
  • the computer determines that the instructor displays a line on the screen of the computer from the points of the image of infrared light whose coordinates continuously change, and displays the image about the line on the screen (20) through the projector (10). ) is included in the image projected.
  • the entered information is stored as an event regarding the instructor's actions.
  • the image captured by the camera 40 is stored in the computer 50 as an image file as image data.
  • the instructor's actions of inputting various information through the infrared pen 30 are stored as event information as a separate event file.
  • the video information, audio information, event information, and information about teaching materials stored as above are stored as individual files along with information on the time each information was executed, and are included in the lecture along with data in the hypertext markup language that can be played through a web browser.
  • Form recording information is stored as individual files along with information on the time each information was executed, and are included in the lecture along with data in the hypertext markup language that can be played through a web browser.
  • the textbook used in the lecture is stored in its original form, that is, if the textbook is formed as a file such as PDF, Word File, HWP, or PPT, the original format is maintained.
  • various information about the lecture that is, the instructor's voice, information about various characters or images that the instructor inputs on the board or textbook, and the instructor's textbook or textbook file.
  • Information about computer control actions and images of the instructor giving a lecture on the screen or board are stored as data generated by microphones, cameras, infrared pens, etc., which are means of acquiring the information, and time information is included. Create lecture recording information.
  • the lecture recording information formed in this way has a very small size compared to the multimedia files formed according to the prior art regarding the lecture, so it is very simple and quick to form, store, transmit, and play the lecture information.
  • video information, image or text information input by the instructor, and information in the textbook have a higher resolution than that realized in a multimedia file formed by simply recording the lecture scene, that is, the original resolution, so the learner can When recording a lecture, you can watch the video or image you want to see in high resolution.

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  • Engineering & Computer Science (AREA)
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  • Business, Economics & Management (AREA)
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  • Human Resources & Organizations (AREA)
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Abstract

La présente invention concerne un procédé d'enregistrement de cours pour enregistrer un cours au moyen d'un système d'enregistrement de cours, qui comprend un moyen d'entrée pour entrer un événement mis en œuvre par un chargé de cours et une action associée au cours, un élément d'enregistrement vidéo pour enregistrer une vidéo associée à l'acte d'enseigner, et un moyen d'enregistrement vocal pour enregistrer la voix du chargé de cours, et le procédé d'enregistrement de cours de la présente invention comprend les étapes consistant à : créer des fichiers respectifs pour des informations d'événement indiquant le fonctionnement d'éléments dans lesquels le chargé de cours affiche divers actes d'entrée pour le système d'enregistrement de cours, écrire des informations associées à l'acte du chargé de cours écrivant sur un tableau de cours ou, des informations vocales associées à la voix avec laquelle le chargé de cours enseigne, des informations vidéo obtenues par capture de l'état dans lequel le chargé de cours enseigne, et des informations associées au matériel pédagogique utilisé par le chargé de cours pendant le cours ; générer des fichiers respectifs en tant que données de langage de balisage hypertexte conjointement avec des informations temporelles associées aux informations stockées dans chaque fichier ; et stocker, dans un ordinateur, les données de langage de balisage hypertexte générées associées à l'enregistrement de cours.
PCT/KR2022/017765 2022-11-10 2022-11-11 Procédé d'enregistrement de cours pour maintenir une résolution d'origine et réduire à un minimum une taille de fichier WO2024101487A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2022-0149316 2022-11-10
KR1020220149316A KR20240068181A (ko) 2022-11-10 2022-11-10 원본의 해상도를 유지하며 파일 크기를 최소화하는 강의 녹화 방법

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110099971A (ko) * 2010-03-03 2011-09-09 주식회사 지식과미래 학습자 필기가 가능한 동영상 강의 시스템
KR20130115484A (ko) * 2012-04-12 2013-10-22 주식회사 케이티 강의 교재와 동기되는 데이터를 이용하는 강의 컨텐츠 제공 시스템 및 강의 컨텐츠 제공 방법
US20130323705A1 (en) * 2012-05-29 2013-12-05 Panasonic Corporation Content providing system and client terminal
KR101858204B1 (ko) * 2017-03-23 2018-06-28 주식회사 포이드림 양방향 멀티미디어 컨텐츠 생성 방법 및 장치
KR20220055372A (ko) * 2020-10-26 2022-05-03 주식회사 유니크유엑스 시간 속성 마크업 언어를 이용한 마이크로 러닝 시스템 및 이를 이용한 학습 컨텐츠 관리 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101421066B1 (ko) 2013-12-31 2014-07-21 정영민 음성파일이 포함된 멀티미디어 콘텐츠 제공 시스템, 방법 및 컴퓨터 프로그램이 기록된 기록매체
KR101845390B1 (ko) 2016-11-14 2018-04-04 주식회사 에듀템 전자펜을 이용하여 획득한 학습 동영상 파일에 기반한 온라인 학습 코칭 장치 및 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110099971A (ko) * 2010-03-03 2011-09-09 주식회사 지식과미래 학습자 필기가 가능한 동영상 강의 시스템
KR20130115484A (ko) * 2012-04-12 2013-10-22 주식회사 케이티 강의 교재와 동기되는 데이터를 이용하는 강의 컨텐츠 제공 시스템 및 강의 컨텐츠 제공 방법
US20130323705A1 (en) * 2012-05-29 2013-12-05 Panasonic Corporation Content providing system and client terminal
KR101858204B1 (ko) * 2017-03-23 2018-06-28 주식회사 포이드림 양방향 멀티미디어 컨텐츠 생성 방법 및 장치
KR20220055372A (ko) * 2020-10-26 2022-05-03 주식회사 유니크유엑스 시간 속성 마크업 언어를 이용한 마이크로 러닝 시스템 및 이를 이용한 학습 컨텐츠 관리 방법

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