KR20110007732A - Method for providing virtual zone in moving picture for concentration improvement - Google Patents

Abstract

PURPOSE: A video service method providing a virtual area for concentration improvement is provided to display a virtual chalk-zone in a part where a speaker directs on a video lecture screen and control the size or the color of the virtual area. CONSTITUTION: A virtual area management client analyzes virtual area information about a video lecture contents of an educational video service(S20). If a video lecture contents is reproduces, the virtual management client determines an input of a virtual area displays signal through a user interface(S30). If the virtual area display signal is inputted, the virtual area management client overlays a virtual area in a specific part of a video lecture screen of a learner terminal or an IPTV terminal(S40).

Description

Video service method that provides a virtual area for improving concentration {METHOD FOR PROVIDING VIRTUAL ZONE IN MOVING PICTURE FOR CONCENTRATION IMPROVEMENT}

The present invention relates to a video service method for providing a virtual area for improving concentration, and more particularly, a part indicated by an instructor on a screen when watching a video lecture content provided through a web-based or IPTV system through a learner computer or an IPTV terminal. The present invention relates to a video service method of displaying a virtual area for improving a learner's concentration.

With the development of the internet environment, many video lectures are being provided, but there are no effective video lectures for learners or people with disabilities. In the course of video lectures, learners generally focus on the fingertips of the teacher, the end of the chalk, and the end of the various indicators for the lecture. If the learners themselves are highly concentrated, there is no problem in taking the video lectures, but in the case of elementary, secondary, high school students, disabled people, and color-impaired people who have low concentration, they cannot concentrate on the video lectures, so they will focus on the video lectures to achieve the educational effect. It is necessary to build a system that can.

The present invention was devised to solve the above problems. When watching a video clip for education through a learner's computer terminal or an IPTV terminal, a virtual dynamic area (Chalk-Zone) is displayed on a portion of the instructor's instruction on the video lecture screen. Or by displaying a C-Zone, a video service method for providing a virtual area having continuous concentration improvement through focusing distinguished from other areas, assisted function and edutainment function of a disabled or low vision student. The purpose is to provide.

According to one aspect of the method for providing video lecture content including virtual area information in an educational video service server according to the present invention for achieving the above object, (a) a specific cover in the video lecture image of the specific video lecture content Recognizing and generating virtual region information on the specific mark; (b) receiving a request for providing the specific video lecture content from a learner terminal; And (c) providing the learner terminal with the specific video lecture content and the virtual region information requested in step (b).

In the step (a), the virtual region information for the specific mark includes information for displaying the virtual region on a specific mark portion of the video lecture image of the specific video lecture content.

In the step (a), the virtual region information for the specific mark is generated as a file in XML format.

In the step (a), the specific cover includes a tip of a specific color attached to the back portion of the lecture pen held by the instructor in the video lecture image of the specific video lecture content.

In step (a), the specific cover includes a specific color tip attached to the front portion of the lecture indicator held by the instructor in the video lecture image of the specific video lecture content.

In the step (a), the specific cover includes a glove of a specific color worn by the instructor in the video lecture image of the specific video lecture content.

On the other hand, according to one aspect of the virtual region display method in the video lecture image of the learner terminal according to the present invention for achieving the above object, (a) receiving specific video lecture content and virtual region information from the video service server for education step; And (b) displaying a virtual region on a specific cover portion of the video lecture image of the specific video lecture content based on the virtual region information.

Between step (a) and step (b), it further comprises a step of determining whether to display the virtual region, the step (b) is performed when the virtual region display request.

After the step (b), if there is a request for removing the virtual region, the method further includes the step (c) of removing the virtual region displayed on the specific cover portion of the video lecture image of the specific video lecture content.

The method may further include determining whether to change the size or the color of the virtual region displayed on the specific cover portion of the video lecture image of the specific video lecture content.

When there is a request to change the size of the virtual region displayed on the specific cover portion of the video lecture image of the specific video lecture content, the method further includes changing the size of the virtual region.

When there is a request to change the color of the virtual region displayed on the specific cover portion of the video lecture image of the specific video lecture content, the method further includes changing the color of the virtual region.

The color of the virtual area is changed to a single color of a different color or a combination of various colors.

After the color of the virtual area is changed, if there is a request to change the brightness and saturation of the color of the changed virtual region, the method further comprises adjusting the brightness and saturation of the color of the changed virtual region.

According to the present invention, when a learner watches an instructional video lecture through a learner's computer terminal or an IPTV terminal, a virtual dynamic area (Chalk-Zone or C-Zone) is distinguished from other areas in a part indicated by the instructor on the video lecture screen. Display, and adjust the brightness / saturation of the size and color of the virtual area to enhance the concentration of distracted students, and to support the edutainment function of the disabled and low vision learners. It is effective to provide.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a diagram illustrating a network configuration for providing a video lecture service in which a virtual region is displayed according to an embodiment of the present invention.

As shown in Figure 1, the system of the present invention includes an educational video service server 500, and a plurality of learner terminals (30.1 ~ 30.N).

The educational video service server 500 generates virtual video information for various educational video lecture contents and respective video lecture contents and provides them to learner terminals 30.1 to 30.N. The virtual region information is information for displaying a virtual region (Chalk-Zone or C-Zone) that is overlaid and displayed on a specific portion of the video lecture screen to improve the learner's concentration when playing the video lecture contents in the learner terminal.

The plurality of learner terminals (30.1 ~ 30.N) is a computer terminal of the learner connected to the educational video service server 500 through the information communication network, the playback of the video lecture content provided from the educational video service server 500 and the corresponding video A virtual area management client for analyzing virtual area information about lecture contents is embedded. The virtual area management client displays a virtual area (Chalk-Zone or C-Zone) for improving the learner's concentration on a specific portion of the playback screen of the corresponding video based on the analyzed virtual area information.

FIG. 2 is a diagram illustrating a configuration of an educational video service server of FIG. 1.

As shown in FIG. 2, the educational video service server 500 according to the present invention includes a video lecture content providing module 501, a control module 502, and a virtual region information providing module 503.

The video lecture content providing module 501 provides video lecture contents of various fields according to a request of a learner terminal.

The virtual area information providing module 503 recognizes a specific color displayed on the playback screen of each video lecture content and generates virtual area information for a specific color part. The virtual region information generated as described above is provided at the request of the learner terminal when providing specific video lecture contents. Part of the color that appears on the video lecture screen is, for example, yellow on the back of the chalk or pen that the instructor holds on the chalkboard or whiteboard, or on the front of the indicator bar to indicate a specific part on the chalkboard or whiteboard. When the tip is attached, the yellow tip portion is displayed on the screen, so that the virtual region information providing module 503 recognizes the yellow color to generate the virtual region information on the yellow color portion. For example, when the instructor wears a yellow glove on his hand, the instructor recognizes the yellow color to generate virtual area information on the yellow color part.

The control module 502 controls each module to perform a series of processes related to the video lecture service in which the virtual area is displayed.

3 is a diagram illustrating a configuration of a virtual region management client embedded in a learner terminal in FIG. 1, and FIG. 4 is a diagram illustrating an example in which various kinds of virtual regions are displayed on a video lecture screen displayed through the learner terminal of FIG. 1. to be.

As shown in FIG. 3, the virtual area management client embedded in the learner terminal of the present invention includes a virtual area information analysis module 101, a control module 102, and a user interface module 103.

The virtual region information analysis module 101 analyzes the virtual region information on the video lecture content provided from the educational video service server at the request of the learner, and based on the analyzed virtual region information, the polygon region is applied to a specific portion on the screen of the corresponding video lecture. A virtual region having a shape is displayed in an overlaid state.

The user interface module 103 uses the interface for playing the video lecture content provided from the educational video service server and the virtual area on a specific portion of the video lecture screen by the virtual area information analyzed by the virtual area information analysis module 101. Provides an interface for displaying or removing. In addition, while the virtual region is displayed in a specific portion of the video lecture screen, the learner provides an interface for changing the size and color of the virtual region, brightness and saturation of the color. For example, as shown in FIG. 4, when the virtual region display signal is input through the user interface module 103, a rectangular shape is indicated on a portion indicated by the lecture pen held by the instructor on the whiteboard of the video lecture screen. The virtual area A of is overlaid and displayed. The size and color of the rectangular virtual area A displayed as described above may be changed according to a user's selection. The size of the rectangular virtual area A is preferably 4 cm * 3 cm in width and width when the display screen of the learner terminal has a resolution of 800 * 600, and the color may be a single color or a combination of various colors. Brightness and saturation can be adjusted.

The control module 102 controls each module to perform a series of processes related to the service for displaying the virtual area on the video lecture screen.

5 is a diagram illustrating a configuration of an IPTV network.

The educational video service server 500 is a part of a video service providing system in which a virtual region to be described below is displayed with reference to FIG. 7, and plays a main role of performing a video service in which the virtual region is displayed, which will be described later with reference to FIG. 7. do.

The IPTV head-end system 200 may include broadcast content supplied from each broadcast content provider 10, such as a program provider (PP), a data provider (DP), a terrestrial provider or an IPTV content provider (CP), and It is a system for transmitting electronic program guide (EPG) information on the broadcast contents to the IPTV terminal 20 of the IPTV viewer. The IPTV headend system 200 is a subscriber switch (L3 switch) 350, a subscriber concentrator (xDSL concentrator, DSLAM) via a Gigabit or higher speed router and an L3 switch using the multicast routing protocol of the premium network 300. Alternatively, the broadcast content and the EPG information are transmitted to the IPTV terminals 20 of the plurality of subscribers joined to the corresponding channel by multicast through the Fast Ethernet Switch (FES) 360. The multicast routing protocol may be a protocol independent multicast-sparse mode (PIM-SM) protocol, but the present invention is not limited thereto, and distance vector multicast routing protocol (DVMRP), multicast extensions to OSPF (MOSPF), and core CBT (core). Multicast routing protocols of any one of Based Tree (PIM-SM), Protocol Independent Multicast-Sparse Mode (PIM-SM), and Protocol Independent Multicast-Dense Mode (PIM-DM) may be used.

More specifically, these IP networks can be described as IP backbone networks using unicast or multicast routing protocols, subscriber networks (eg Ethernet, xDSL, HFC, FTTC, FTTH), IP set-top boxes. IPTV terminal 20 including a TV connected to the STB.

The IP backbone network includes a premium network 300, each router including a Rendezvous Point (RP) 310 and a premium edge (PE) router 320 therein, a metro switch (L3 switch) (330). ), An N-Topia switch (L3 switch) 340 (N-Topia: service using a high-speed Internet through LAN equipment installed in a group building where UTP is installed), and a subscriber switch (L3 switch) 350. Each of the Layer 3 network equipment uses the PIM-SM multicast routing protocol, and the IPTV terminal 20 and the subscriber concentrator 360 use the Internet Group Management Protocol (IGMP) and the IGMP Snooping protocol, respectively. The subscriber concentrator 360 may include an xDSL concentrator, a DSLAM, or a Fast Ethernet Switch (FES).

The rendezvous point 310 of the premium network 300 manages a PIM Join list and a PIM Prune list for a plurality of multicast groups. In the present invention, a broadcast channel is a multicast group. group), the Join list and the Prune list are managed for each broadcast channel.

The Internet Group Management Protocol (IGMP) is used between the IPTV terminal 20 requesting broadcast channel selection / release and the Layer 3 network equipment (eg, subscriber switch 350) accepting the request.

The IGMP Snooping protocol is a Layer 2 device (eg subscriber concentrator) located between the IPTV terminal 20 of the subscriber requesting channel selection / release and the Layer 3 network equipment (eg subscriber switch 350) accepting the request. 360)), the Layer 2 equipment (subscriber concentrator 360) in which the IGMP Snooping protocol is driven recognizes an IGMP transmission / reception message between the IPTV terminal 20 and the Layer 3 network equipment, and makes a channel request. The channel information is transmitted only to the IPTV terminal 20.

The subscriber network refers to a network between the Layer 2 equipment (eg, subscriber concentrator 360) and the IPTV terminal 20, and includes Ethernet, xDSL (ADSL, VDSL), Hybrid Fiber Coax (HFC), and FTTC ( Fiber To The Curb (FTTH), Fiber To The Home (FTTH) structure can be composed of any one topology.

The IPTV terminal 20 may use a terminal in which an IP set-top box (IP STB) is embedded or an IP set-top box, a computer, a laptop, or a personal portable terminal connected to a user's TV. Hereinafter, for convenience, a terminal of an IPTV user is referred to as a term 'IPTV terminal'. The IPTV terminal 20 includes a hardware layer composed of hardware such as a CPU, a media processor, flash RAM, and an Ethernet module, a system software layer including a device driver and an operating system, a Java virtual machine (JVM), and a JNI (Java). Network Interface), ACAP API (ACAP-J, ACAP-X API) (Java TV, Havi UI, JMF, DAVIC, CA Interface), Conditional Access System (CAS) Module or Digital Rights Management (DRM) Rights Management) interface module, APIs for IP media service (Navigator, Audio streaming API, VOD, Flash player, HDS Client, SSO Client), middleware layer with streaming protocol (RTP, RTSP), MPEG2, MPEG4, MPEG7, Supports various multi-codecs such as H.264, WMV-9, and other codecs, and includes an electronic program guide (EPG) client and a client-level client for using interactive video services. Contains the hierarchy. The subscriber's IPTV terminal 20 is assigned an IPv4 address or an IPv6 address.

6 is a diagram illustrating a configuration of an IPTV head-end system 200.

Referring to the drawings, the IPTV headend system 200 includes a baseband system 205, a compression multiplexing system (or multiplexing system) 210, a network switch system 215, a return path server system (RPS). 220, personalization authentication server (HDS) 225, EPG providing system 230, data broadcasting system 235, media management system (MOC: Media Operation Core) 240, reception restriction system 245, billing A processing system 250, a monitoring system 255, and a subscriber management system 260.

The baseband system 205 receives an MPEG-2 broadcast signal from an external program provider (PP) or an analog broadcast signal from terrestrial waves, converts the received source broadcast signal into a SDI (Serial Digital Interface) signal, and Synchronize frames, distribute broadcast video and audio signals from multiple broadcast channels (e.g. 100 channels) via routine switchers, subtitle generators (CG) and automatic program controllers (APC) At least one of an advertisement, a logo, or a subtitle is inserted (signal editing and processing) into the broadcast video and audio signal, and transmitted to the compression multiplexing system (or multiplexing system) 210. The baseband system 205 receives a broadcast signal such as a terrestrial wave, a tuner for receiving an analog broadcast signal through a DS-3 optical end station, a Yagi antenna, an integrated receiver decoder (IRD), and a received source signal. A frame divider for converting and correcting SDI signals and synchronizing frames, a signal divider such as an A / V router that connects / concentrates all broadcast signal channels for operational management, advertisements, logos on the SDI signals, It includes a subtitle generator for inserting subtitles to edit and process the signal.

The compression multiplexing system (or multiplexing system) 210 converts the broadcast video and audio signals received from the baseband system 205 into an A / V encoder for each broadcasting channel (eg, 100 channels). Compresses SDI (Serial Digital Interface) video signals using the H.264 protocol, compresses audio signals to MPEG-2 AAC, and compresses broadcast data and audio to a data encoder with MPEG-2 TS. After multiplexing the data broadcasting data generated by the program and the program related information (PSI) generated by the PSI generator, the packetized IP packetized by IP packetizing the multiplexed MPEG-2 Transport Stream (TS). A transport stream is transmitted to the network switch system 215. The program related information (PSI) includes a program association table (PAT) and a program map table (PMT) information.

The network switch system 215 may include one or more L3 switches (L3 SW), the return path server system, and the subscriber station 20 for transmitting the IP packetized transport stream to an IP network by multicasting. One or more L4 switches (L4 SW) for load balancing by dividing bidirectional data receiving traffic in a unicast manner between them by a proper load, and blocking harmful traffic between the L4 switch and the IP network. One or more intrusion prevention systems.

In addition, IP multicasting may use IPv4 multicasting or IPv6 multicasting techniques. In one embodiment, if the router and the L3 switch use the PIM-SM multicast routing protocol, and the subscriber's IP set-top box uses an IPv4 address, the I3 v3 / v3 uses IGMP Snooping of the L2 network device to the L3 switch. Join to the desired broadcast channel, or if using an IPv6 address, transmit to the L3 switch using MLD v1 / v2 to join the broadcast channel.

When the network switch system 215 uses IPv4 multicasting, IPv4 multicast addresses are '224.0.0.0' to '239.255.255.255', which are different for each broadcast channel (for example, 100 channels). Use For example, when using IPv4 multicasting, SBS can use 230.1.1.1 multicast address, KBS can use 230.1.1.2 multicast address, and EBS can use 230.1.1.3 multicast address. When using the PIM-SM multicast routing protocol, the network switch system 215 transmits a register message to the rendezvous point (RP) 310, and in response, the rendezvous point (RP) 310 sends a PIM JOIN message. The process of registering a rendezvous point (RP) 310 for transmitting a path to the network switch system 215 and setting a path is performed.

The return path server system 220 records log information of a subscriber, processes bidirectional data by a data provider (DP), receives bidirectional data from the IPTV terminal 20 of the subscriber, and The corresponding response data is transmitted to the IPTV terminal 20 in unicasting.

The personalization authentication server (HDS) 225 sends an authentication request message including the ID (SAID) of the IPTV terminal 20 for the IPTV service and the application service information to be used from the subscriber's IPTV terminal 20 to the return pass server. Received through the system 220, and transmits an authentication key (Unique Key, UK) in response to the authentication request message to the subscriber's IPTV terminal 20 through the return pass server system 220.

The location information of the IPTV terminal 20 includes an ID (SAID) and subscriber information of the IPTV terminal 20. The SAID of the IPTV terminal 20 is a unique ID assigned to the IPTV terminal 20. In addition, the IPTV terminal 20 includes a single sign-on (SSO) client and an HDS client for managing opening terminal information, and the SAID of the terminal is stored in the HDS client in the IPTV terminal 20. The personalization authentication server (HDS authentication server) 225 and the HDS client of the IPTV terminal 20 manage information (SAID, IP Address, MAC Address, terminal model name) of the opened IPTV terminal 20. In the case of personal authentication-based service, when authenticating a personal identification number (PIN), one master PIN number (consisting of four digits) can be assigned to one household and a plurality of PIN information can be assigned to household members.

The EPG providing system 230 provides EPG information to the IPTV terminal 20.

The data broadcasting system (DBS) 235 is a data manager for managing data encoding, a PSI generator / SI generator for generating program related information / service information (PSI / SI). Generator, Data Server / Data Encoder to encode data broadcasting data, Multiplexer Manager (MM) to manage multiplexing function of data broadcasting data and PSI information and SI information, and scheduler It includes a user interface (Scheduler UI). The data broadcasting system (DBS) 235 multiplexes data broadcasting data and PSI information generated by a data server / data encoder and a PSI generator / SI generator by an authoring tool according to the terrestrial ACAP data broadcasting standard. The SI information is then sent to the IP multiplexer. The data manager (DM) of the data broadcasting system (DBS) 235 receives an object carousel (OC) including periodically updated information received from a data agent (DA). do.

The media operation system (MOC) 240 is a system for managing various business process information (program programming information, location information, contract information, product information, etc.) for operating a broadcasting task. The media management system 240 manages broadcast program organization information, content and media management information, contract information of a program provider (PP) and a content provider (CP), and product information, and manages each system in the center of a broadcasting center. It acts as a coordinator that integrates and manages information flow through organic integration. The media management system (MOC) 240 includes contract management in terms of acquisition, media and content metadata management, EPG information acquisition / management as broadcast schedule information, and real time broadcasting in terms of operation. Marketing analysis reporting and delivery such as settlement of CP and subscriber viewing inclination in terms of VoD channel formation management, agent management for interworking with each subsystem, VoD catalog generation management, various product management, and analysis ), Broadcasting transmission monitoring, video server transmission management and VoD subscriber authentication, transmission result recording / management for settlement with CP, and data synchronization with each subsystem.

The billing processing system 250 is a provisioning system. When using the IPTV service for a fee after user authentication, the billing processing system 250 provides a billing processing function for the use of the IPTV service for each subscriber member.

The monitoring system 255 is a control system that monitors a transmission failure of an A / V broadcast signal for IPTV broadcasting and a reception failure by monitoring a downlink of the IPTV headend system 200.

The subscriber management system 260 provides a member subscription and termination for the IPTV service, and a member information management function.

7 is a diagram illustrating a network configuration for providing a video service in which a virtual area is displayed in IPTV.

In IPTV, an IPTV channel selection menu including a channel providing a video accompanied by a video lecture service displaying a virtual area (hereinafter referred to as a video on demand channel) is provided through a multicasting method through an IPTV network. The IPTV channel selection menu may be provided by the EPG providing system 230 described above with reference to FIG. 6 or may be provided through a portal screen for selecting an IPTV menu generated by the data broadcasting system 235. It may be. 7 shows only the data broadcasting system 235. The portal screen generated by the data broadcasting system 235 is subjected to multiplexing in the multiplexing system (or compression multiplexing system) 210, through the network switch 215, and in a multicasting manner through the IPTV network described above with reference to FIG. It is provided to the user's IPTV terminal 20.N. When the VOD channel is selected from the IPTV terminal 20.N, the return path server system 220 provides a URL address of the educational video service server 500 to the IPTV terminal 20.N. In addition, the IPTV terminal 20.N accesses the educational video service server 500 by the URL address and receives the specific video lecture content and virtual area information thereof.

Since the functions of the virtual area management client in the IPTV terminal 20.N and the functions of the respective components 501 to 503 of the educational video service server 500 are almost the same as those described above with reference to FIGS. Omit.

8 is a diagram illustrating a method for providing a video service in which a virtual region is displayed in an educational video service server according to an embodiment of the present invention.

As shown in FIG. 8, by playing the video lecture content stored in the video service server for education recognizes a specific color displayed on the video lecture screen (S10), and generates virtual region information for the recognized specific color (S20). . The virtual region information is information for displaying the virtual region displayed on the video lecture screen by being overlaid on a specific part of the video lecture screen to improve the learner's concentration when playing the video lecture contents in the learner terminal. The virtual region information is mapped to the video lecture content and stored (S30). The educational video service server determines whether the provision of the specific video lecture content is requested from the learner terminal or the IPTV terminal on the web (S40), and when the provision of the specific video lecture content is requested, the video content of the lecture is mapped to the requested video lecture content. The virtual area information is provided to the learner terminal or the IPTV terminal (S50).

9 is a diagram illustrating a method for displaying a virtual area on a video lecture screen of a learner terminal according to an embodiment of the present invention.

As shown in FIG. 9, the virtual area management client embedded in the learner terminal or the IPTV terminal capable of web access is executed (S10). The executed virtual region management client analyzes the virtual region information on the video lecture content provided from the educational video service server (S20). When analysis of the virtual region information on the video lecture content is completed and the video lecture content is played, it is determined whether a virtual region display signal is input through the user interface (S30). When the virtual region display signal is input, a virtual region having a polygonal shape is displayed in a superimposed state on a specific portion of the video lecture screen of the learner terminal or the IPTV terminal based on the analyzed virtual region information (S40). The size and color of the virtual area can be changed through the user interface according to the learner's choice. The color of the virtual area can be a single color or a combination of various colors, and the brightness and saturation of the color can be adjusted. Subsequently, when the virtual region removal signal is input through the user interface, the virtual region displayed by being overlaid on a specific portion of the video lecture screen is removed.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a diagram illustrating a network configuration for providing a video lecture service displaying a virtual area according to an embodiment of the present invention.

2 is a view showing the configuration of the educational video service server in FIG.

FIG. 3 is a diagram illustrating a configuration of a virtual area management client embedded in the learner terminal of FIG. 1. FIG.

4 is a diagram illustrating an example in which various types of virtual regions are displayed on a video lecture screen displayed through the learner terminal of FIG. 1.

5 is a diagram illustrating a configuration of an IPTV network.

6 is a diagram showing the configuration of an IPTV head-end system 200. FIG.

7 is a diagram illustrating a network configuration for providing a video service in which a virtual area is displayed in IPTV.

8 is a diagram illustrating a method for providing a video service in which a virtual region is displayed in an educational video service server according to an embodiment of the present invention.

9 is a diagram illustrating a method for displaying a virtual area on a video lecture screen of a learner terminal according to an embodiment of the present invention.

Claims (14)

As a method of providing video lecture content including virtual area information in an educational video service server, (a) recognizing a specific mark in the video lecture image of the specific video lecture content to generate virtual region information for the specific cover; (b) receiving a request for providing the specific video lecture content from a learner terminal; And (c) providing the learner terminal with the specific video lecture content and the virtual region information requested in step (b); Video lecture content providing method including the virtual area information including a. The method according to claim 1, In the step (a), the virtual region information for the specific mark is information for displaying the virtual region on a specific mark portion of the video lecture image of the specific video lecture content. Video lecture content providing method comprising the virtual area information, characterized in that it comprises a. The method according to claim 1, In the step (a), the virtual region information for the specific mark is generated as a file in XML format Video lecture content providing method comprising the virtual area information, characterized in that. The method according to claim 1, In the step (a), the specific cover is a tip of a specific color attached to the back portion of the lecture pen held by the instructor in the video lecture image of the specific video lecture content Video lecture content providing method including the virtual region information, characterized in that it comprises a. The method according to claim 1, In step (a), the specific mark is a tip of a specific color attached to the front portion of the lecture indicator held by the instructor in the video lecture image of the specific video lecture content Video lecture content providing method including the virtual region information, characterized in that it comprises a. The method according to claim 1, In the step (a), the specific cover is a glove of a specific color worn by the instructor in the video lecture image of the specific video lecture content Video lecture content providing method including the virtual region information, characterized in that it comprises a. A virtual region display method in a video lecture image of a learner terminal, (a) receiving specific video lecture content and virtual region information from an educational video service server; And (b) displaying a virtual region on a specific cover portion of the video lecture image of the specific video lecture content based on the virtual region information; Virtual region display method in the video lecture image of the learner terminal comprising a. The method of claim 7, Between the step (a) and step (b), further comprising the step of determining whether or not to request the virtual region display, the step (b) is performed when there is a request for displaying the virtual region A virtual region display method in a video lecture image of a learner terminal. The method of claim 7, (c) after the step (b), if there is a request for removing the virtual region, removing the virtual region displayed on a specific cover portion of the video lecture image of the specific video lecture contents; The virtual region display method in the video lecture image of the learner terminal further comprising. The method of claim 7, Determining whether to change the size or color of the virtual area displayed on a specific cover portion of the video lecture image of the specific video lecture content; The virtual region display method in the video lecture image of the learner terminal further comprising. The method according to claim 10, Changing the size of the virtual region when there is a request to change the size of the virtual region displayed on a specific cover portion of the video lecture image of the specific video lecture content; The virtual region display method in the video lecture image of the learner terminal further comprising. The method according to claim 10, Changing a color of the virtual region when there is a request to change the color of the virtual region displayed on a specific cover portion of the video lecture image of the specific video lecture content; The virtual region display method in the video lecture image of the learner terminal further comprising. The method according to claim 12, The color of the virtual area is changed to a single color of a different color or a combination of various colors Virtual region display method in the video lecture image of the learner terminal. The method according to claim 12, Adjusting the brightness and saturation of the color of the changed virtual area when a request is made to change the brightness and saturation of the color of the changed virtual area after the color of the virtual area is changed; The virtual region display method in the video lecture image of the learner terminal further comprising.

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