WO2017101440A1 - Procédé et système de synchronisation d'annotation à distance - Google Patents

Procédé et système de synchronisation d'annotation à distance Download PDF

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Publication number
WO2017101440A1
WO2017101440A1 PCT/CN2016/090746 CN2016090746W WO2017101440A1 WO 2017101440 A1 WO2017101440 A1 WO 2017101440A1 CN 2016090746 W CN2016090746 W CN 2016090746W WO 2017101440 A1 WO2017101440 A1 WO 2017101440A1
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WIPO (PCT)
Prior art keywords
annotation
screen
coordinate set
converted
image
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Application number
PCT/CN2016/090746
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English (en)
Chinese (zh)
Inventor
杨利侠
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广州视睿电子科技有限公司
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Publication of WO2017101440A1 publication Critical patent/WO2017101440A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text

Definitions

  • the present invention relates to the field of interactive smart tablet technologies, and in particular, to a method and system for remote annotation synchronization. Background technique
  • Interactive smart tablet with annotation, painting, multimedia entertainment and other functions, incorporating human-computer interaction, flat panel display, multimedia information processing and network transmission, etc. It is the interaction of office, teaching and graphic in the information age. The preferred solution for the demonstration.
  • the inventor found that at least the following problems exist in the conventional technology: using an interactive smart tablet in a classroom or a conference scene, when annotating the content on the screen, the traditional technology requires the user to implement the screen on the interactive smart tablet.
  • the related operations (annotations) of the content the user can not interact with the audience from the interactive smart tablet.
  • an embodiment of the technical solution of the present invention is:
  • a method of remote annotation synchronization comprising the steps of:
  • the coordinate set of the current screen image drawn and stored on the drawing canvas is acquired; the current screen image includes the annotation handwriting obtained according to the screen annotation event;
  • the converted coordinate set is sent to the interactive smart tablet; the converted coordinate set is parsed by the interactive smart tablet, and the corresponding annotation handwriting is displayed according to the parsed coordinate set.
  • a method of remote annotation synchronization including the following steps:
  • the converted coordinate set is the mobile terminal acquiring the drawing according to the screen annotation event of the monitoring And storing the coordinate set of the current screen image on the drawing canvas, and performing coordinate conversion on the coordinate set;
  • the current screen image includes a screen capture image and an annotation handwriting obtained according to the screen annotation event.
  • a remote annotation synchronization system including:
  • a monitor screen unit for monitoring a screen annotation event; and, when the screen annotation event is monitored, acquiring a coordinate set of the current screen image drawn and stored on the drawing canvas; the current screen image includes an annotation handwriting obtained according to the screen annotation event;
  • the conversion unit is configured to perform coordinate transformation on the coordinate set to obtain the converted coordinate set;
  • the mobile sending unit is configured to send the converted coordinate set to the interactive smart tablet; and the transformed smart set analyzes the converted coordinate set And display the corresponding annotation handwriting based on the parsed coordinate set.
  • a remote annotation synchronization system including:
  • An interactive smart tablet sending unit is configured to send a screen image to the mobile terminal in real time, and the screen image is captured by the mobile terminal to obtain a screen capture image;
  • An interactive smart tablet receiving unit configured to receive a converted coordinate set sent by the mobile terminal; and an analyzing unit, configured to parse the converted coordinate set;
  • a display unit configured to display a corresponding annotation handwriting according to the parsed coordinate set
  • the converted coordinate set is obtained by the mobile terminal according to the screen annotation event of the monitor, obtaining the coordinate set of the current screen image drawn and stored on the drawing canvas, and performing coordinate conversion on the coordinate set;
  • the current screen image includes the screen capture image and Annotated handwriting obtained from the screen annotation event.
  • the method and system for remote annotation synchronization of the present invention because the mobile device remotely controls the interactive smart tablet for annotation synchronization, ensuring that the annotations displayed on the mobile device and the interactive smart tablet are consistent; the mobile device continuously receives and intercepts the image sent by the interactive smart tablet. At the same time, the related data of the annotation coordinate set information and the like are sent to the interactive smart tablet, and the interactive smart tablet performs corresponding operations according to the relevant data, so that the annotation on the mobile device is consistent with the annotation displayed on the interactive smart tablet. This ensures that the user can perform related operations (annotations) on the screen content from the interactive smart tablet and interact with the viewer.
  • FIG. 1 is a schematic diagram of an application scenario of a remote annotation synchronization method and system according to the present invention
  • FIG. 2 is a schematic flowchart of Embodiment 1 of a remote annotation synchronization method implemented by a mobile terminal from the perspective of a mobile terminal;
  • FIG. 3 is a schematic flowchart of Embodiment 1 of a method for remote annotation synchronization implemented by an interactive smart tablet according to the present invention
  • Embodiment 4 is a schematic structural diagram of Embodiment 1 of a system for remote annotation synchronization implemented from a mobile terminal perspective;
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a system for remote annotation synchronization implemented from the perspective of an interactive smart tablet. detailed description
  • FIG. 1 is a schematic diagram of an application scenario of a remote annotation synchronization method and system according to the present invention
  • an interactive smart tablet is used in a classroom or a conference scene, and when an annotation is performed on the content on the screen, the user needs to interact.
  • the remote annotation synchronization method and system of the present invention can remotely control the interactive smart tablet for annotation, ensuring that the annotations displayed on the mobile device (mobile terminal) and the interactive smart tablet are consistent, thereby ensuring that the user can implement the screen content from the interactive smart tablet.
  • Related operations (annotations) and interaction with the audience Method 1 of remote annotation synchronization implemented by the present invention from the perspective of a mobile terminal:
  • the present invention provides a method for remote annotation synchronization implemented from the perspective of a mobile terminal, and a method for remote annotation synchronization implemented from the perspective of a mobile terminal according to the present invention.
  • the schematic diagram of the process of Embodiment 1, as shown in FIG. 2, may include the following steps:
  • Step S210 Monitor a screen annotation event
  • Step S220 Acquire a coordinate set of a current screen image drawn and stored on the drawing canvas when the screen annotation event is monitored; the current screen image includes an annotation stroke obtained according to the screen annotation event;
  • Step S230 performing coordinate conversion on the coordinate set to obtain a converted coordinate set
  • Step S240 Send the converted coordinate set to the interactive smart tablet; parse the converted coordinate set by the interactive smart tablet, and display the corresponding annotation handwriting according to the parsed coordinate set.
  • step S230 performs coordinate transformation on the coordinate set, and the step of obtaining the converted coordinate set may include:
  • the coordinates of all the pixel coordinates in the coordinate set are coordinate-converted with respect to the origin of the coordinate, and the converted coordinate set is obtained.
  • the annotation handwriting obtained according to the screen annotation event in step S220 Create a drawing canvas; take the operating system of the mobile terminal as an Android system, the canvas can be an Android drawing canvas, and the Android drawing canvas is created by Canvas, and accordingly the operating system of the mobile terminal is IOS (the mobile operation developed by Apple)
  • the drawing canvas can also be an IOS drawing board or a drawing drawing canvas.
  • the canvas can also have a drawing canvas function for other types of operating systems. Drawing canvas created by the control;
  • Monitors the screen annotation event draws and stores the annotation handwriting on the above drawing canvas according to the movement of the current annotation touch point.
  • the purpose of drawing an annotation on the drawing canvas is to make the mobile device match the image displayed on the interactive smart tablet.
  • Embodiment 1 of the method for remote annotation synchronization implemented by the mobile terminal from the perspective of the mobile terminal may include the following steps:
  • the mobile device draws an annotation so that the mobile terminal is consistent with the image displayed by the interactive smart tablet; the mobile terminal acquires the annotation point coordinate set of the annotation event.
  • the mobile device listens to the Android screen annotation event, draws the annotation handwriting according to the movement of the finger, that is, the drawing curve method (canvas drawPath) of the Android drawing canvas is drawn in the onDraw method of the control. And recording the currently drawn handwriting, and obtaining the coordinate set of the handwriting; and since the moving end will continuously encode the image drawn on the canvas to the interactive smart tablet, the interactive smart tablet can display the screen image after decoding, and therefore will annotate The handwriting is drawn on the drawing canvas to ensure that the annotations displayed on the mobile end are consistent with the interactive smart tablet.
  • the drawing curve method canvas drawPath
  • the screen annotation event is an operation different from the screen touch event.
  • the annotation toolbar or the annotation button for triggering the annotation function can be set on the mobile terminal, and when the user triggers the annotation function, the mobile terminal enters the listening Android screen annotation event state.
  • the screen touch event does not need to set a toolbar or button that triggers the touch function on the screen, and the user can trigger the screen touch event by touching the screen with the finger; in addition, different time can be set according to the time or the intensity of the touch of the screen by the human hand. Gestures to trigger screen annotations or screen touches.
  • the mobile end performs coordinate conversion on the annotation point coordinate set of the annotation event, obtains the converted coordinate set, and transmits the converted coordinate set to the interactive smart tablet device:
  • the upper left corner of the coordinate set is the coordinate origin
  • the converted coordinate set ( ⁇ , ⁇ ) is: the pixel coordinate (xl, yl) of each point in the annotation point set relative to the upper left corner. Converted to (65535*xl/Xm, 65535*yl/Ym), where Xm is the horizontal resolution of the mobile screen and Ym is the vertical resolution of the mobile screen.
  • the converted coordinate set ( ⁇ , ⁇ ) is transmitted to the interactive smart tablet device, and the converted coordinate set is parsed by the interactive smart tablet, and the resolved coordinate set is ( ⁇ * ⁇ /65535, ⁇ * ⁇ /65535), Where ⁇ , ⁇ is the screen resolution of the smart tablet (large screen) end, and the interactive smart tablet displays the corresponding annotation handwriting according to the parsed coordinate set.
  • the mobile terminal can also send the converted coordinate set (Xn*xl/Xm,
  • the mobile terminal can also directly transmit the coordinate set (xl, yl), which is parsed by the interactive smart tablet and interpreted as (Xn*xl/Xm, Yn*xl/Ym).
  • Embodiment 1 of the method for remote annotation synchronization implemented by the mobile terminal from the mobile terminal perspective because the mobile device remotely controls the interactive smart tablet for annotation synchronization, ensuring that the annotations displayed on the mobile device and the interactive smart tablet are consistent; the mobile device continuously receives and The image sent by the interactive smart tablet is intercepted, and the related data of the annotation coordinate set information and the like are sent to the interactive smart tablet, and the interactive smart tablet performs corresponding operations according to the relevant data, so that the annotation on the mobile device and the interactive smart tablet are displayed.
  • the annotations are consistent, thus ensuring that the user can perform related operations (annotations) on the screen content from the interactive smart tablet and interact with the viewer.
  • FIG. 3 is a remote annotation synchronization implemented from the perspective of an interactive smart tablet.
  • a schematic diagram of the process of the method embodiment 1, as shown in FIG. 3, taking the mobile device of the Android system as an example, may include the following steps:
  • Step S310 Sending a screen image to the mobile terminal in real time, and intercepting the screen image by the mobile terminal, Have a screen shot image;
  • Step S320 Receive a converted coordinate set sent by the mobile terminal, parse the converted coordinate set, and display a corresponding annotation handwriting according to the parsed coordinate set; the converted coordinate set is a mobile terminal annotating event according to the monitoring screen. Obtaining a coordinate set of the current screen image drawn and stored on the drawing canvas, and performing coordinate conversion on the coordinate set; the current screen image includes a screen capture image and an annotation handwriting obtained according to the screen annotation event;
  • the step of the interactive smart tablet parsing the converted coordinate set may include:
  • the converted coordinate set is parsed to obtain the parsed set of coordinates.
  • Embodiment 1 of the method for remote annotation synchronization implemented by the present invention from the perspective of an interactive smart tablet may include the following steps:
  • the interactive smart tablet sends the screen image to the mobile device in real time, and is intercepted by the mobile device, and saved as a screen after the screen capture;
  • An Android drawing canvas (Canvas) is created by the mobile device, and any image or handwriting can be drawn on the drawing canvas by using the set brush (Paint class); the annotation operations in the embodiment of the present invention are all performed on the Android drawing canvas. .
  • the mobile terminal listens to the Android screen annotation event, draws the annotation handwriting according to the movement of the finger, that is, draws the curve of the draw drawing method of the Android drawing canvas in the onDraw method of the control, and records The currently drawn handwriting.
  • the screen annotation event is an operation different from the screen touch event.
  • an annotation toolbar or an annotation button for triggering the annotation function can be set on the mobile terminal, and when the user triggers the annotation function, the mobile terminal enters the monitoring.
  • the screen annotation function or the screen touch function may be triggered by setting different gesture operations in advance according to different time or strength of the human hand touching the screen.
  • the interactive smart tablet device receives the converted coordinate set, and parses the converted coordinate set:
  • the upper left corner of the coordinate set is the coordinate origin
  • the converted coordinate set ( ⁇ , ⁇ ) is: the pixel coordinate of each point in the annotation point set relative to the upper left corner (xl, Yl is converted to (65535*xl/Xm, 65535*yl/Ym), where Xm is the horizontal resolution of the mobile screen and Ym is the vertical resolution of the mobile screen.
  • the interactive smart tablet device receives the converted coordinate set (A, B), and parses the converted coordinate set, and the resolved coordinate set is (Xn*A/65535, Yn*B/65535), where Xn, Yn are The screen resolution of the smart tablet (large screen) side, the interactive smart tablet displays the corresponding annotation handwriting according to the parsed coordinate set.
  • the interactive smart tablet can receive the coordinate set (Xn*xl/Xm, Yn*xl/Ym) converted by the mobile terminal, and use the coordinate set to display the annotation handwriting.
  • the interactive smart tablet can receive the coordinate set (xl, yl ) directly sent by the mobile terminal, and parse it into (Xn*xl/Xm, Yn*xl/Ym) and then perform the annotation handwriting. Show no.
  • the method for remote annotation synchronization implemented by the invention from the perspective of the interactive smart tablet is as follows, because the mobile device remotely controls the interactive smart tablet for annotation synchronization, ensuring that the annotations displayed on the mobile device and the interactive smart tablet are consistent; the mobile device continuously receives and The image sent by the interactive smart tablet is intercepted, and the related data of the annotation coordinate set information and the like are sent to the interactive smart tablet, and the interactive smart tablet performs corresponding operations according to the relevant data, so that the annotation on the mobile device and the interactive smart tablet are displayed.
  • the annotations are consistent, thus ensuring that the user can perform related operations (annotations) on the screen content from the interactive smart tablet and interact with the viewer.
  • FIG. 4 is a schematic structural diagram of the system embodiment 1 of the remote annotation synchronization implemented by the mobile terminal from the perspective of the mobile terminal. As shown in FIG. 4, the method may include:
  • the monitor screen unit 10 is configured to monitor a screen annotation event; and, when the screen annotation event is monitored, acquire a coordinate set of a current screen image drawn and stored on the drawing canvas; the current screen image includes an annotation handwriting obtained according to the screen annotation event;
  • the converting unit 20 is configured to perform coordinate conversion on the coordinate set to obtain the converted coordinate set; the mobile transmitting unit 30 is configured to send the converted coordinate set to the interactive smart tablet; and the transformed smart set is converted by the interactive smart tablet Parsing, and displaying the corresponding annotation handwriting according to the parsed coordinate set.
  • system embodiment 1 of the remote annotation synchronization implemented by the present invention from the perspective of the mobile terminal further includes:
  • the mobile terminal receiving unit 40 is configured to receive a screen image sent by the interactive smart tablet in real time;
  • the intercepting screen unit 50 is configured to intercept the screen image sent in real time to obtain a screen capture image; and the current screen image further includes a screen capture image;
  • the drawing unit 60 is configured to create a drawing canvas; and through the screen annotation event, draw and store the annotation handwriting on the drawing canvas according to the movement of the current annotation touch point; and use the drawing screen image to be drawn and stored on the drawing canvas.
  • the specific working process of the system embodiment 1 of the remote annotation synchronization implemented by the mobile terminal from the perspective of the mobile terminal may be as follows:
  • the mobile terminal receiving unit 40 receives the interaction.
  • the intercepting screen unit 50 intercepts the current screen image;
  • the drawing unit 60 creates an Android drawing canvas (Canvas), and any image or handwriting can be drawn on the drawing canvas by using the set brush (Paint class); all the annotations and synchronous scaling operations in the embodiment of the present invention are in Android. Drawing on the canvas.
  • the drawing unit 60 draws the image after the screen capture on the drawing canvas, calls the drawing image method of the Android drawing canvas (canvas. drawBitmap) in the drawing (onDraw) method, and records the currently drawn image. Drawing the screenshot on the drawing canvas as the background image ensures that the display on the mobile side is consistent with the interactive smart tablet.
  • the listening screen unit 10 listens to the Android screen annotation event, and the drawing unit 60 draws the annotation handwriting according to the movement of the finger, that is, in the drawing drawing (onDraw) method of the control, the drawing drawing method (canvas drawPath) of the Android drawing canvas is used to draw the curve, and the recording is performed.
  • the screen annotation event is an operation different from the screen touch event.
  • an annotation toolbar or an annotation button for triggering the annotation function can be set on the mobile screen, and when the user triggers the annotation function, the mobile terminal enters the listening Android screen annotation.
  • the converting unit 20 performs coordinate transformation on the annotation point coordinate set of the annotation event to obtain the converted coordinate set, and the mobile terminal transmitting unit 30 transmits the converted coordinate set to the interactive smart tablet device:
  • the conversion unit 20 takes the upper left corner of the coordinate set as the coordinate origin, and the converted coordinate set ( ⁇ , ⁇ ) is: converts the pixel coordinate (xl, yl ) of each point in the annotation point set from the upper left corner to (65535*xl/ Xm, 65535*yl/Ym), where Xm is the horizontal resolution of the mobile screen and Ym is the vertical resolution of the mobile screen.
  • the converted coordinate set ( ⁇ , ⁇ ) is transmitted to the interactive smart tablet device, and the converted coordinate set is parsed by the interactive smart tablet, and the resolved coordinate set is (Xn*A/65535, Yn*B/65535).
  • Xn, Yn is the screen resolution of the smart tablet (large screen), and the interactive smart tablet displays the corresponding annotation handwriting according to the parsed coordinate set.
  • the mobile terminal may also send the converted coordinate set (Xn*xl/Xm, Yn*xl/Ym), which is directly received by the interactive smart tablet and uses the converted coordinate set to perform the annotation handwriting. display.
  • the mobile terminal can also directly transmit the coordinate set (xl, yl), which is parsed by the interactive smart tablet and interpreted as (Xn*xl/Xm, Yn*xl/Ym).
  • Embodiment 1 of the system for remote annotation synchronization implemented from the perspective of the mobile terminal, because the mobile device remotely controls the interactive smart tablet for annotation synchronization, ensuring that the annotations displayed on the mobile device and the interactive smart tablet are consistent; the mobile device continuously receives and The image sent by the interactive smart tablet is intercepted, and the related data of the annotation coordinate set information and the like are sent to the interactive smart tablet, and the interactive smart tablet performs corresponding operations according to the relevant data, so that the annotation and the interactive intelligent flat on the mobile device are ensured.
  • the annotations displayed on the board are consistent, thus ensuring that the user can perform related operations (annotations) on the screen content from the interactive smart tablet and interact with the viewer.
  • the embodiment of the present invention further provides a system embodiment 1 for remote annotation synchronization implemented from the perspective of an interactive smart tablet.
  • 5 is a schematic structural diagram of Embodiment 1 of a system for remote annotation synchronization implemented from the perspective of an interactive smart tablet; as shown in FIG. 5, it may include:
  • the interactive smart tablet sending unit 510 is configured to send a screen image to the mobile terminal in real time, and the screen image is intercepted by the mobile terminal to obtain a screen capture image;
  • the interactive smart panel receiving unit 520 is configured to receive the converted coordinate set sent by the mobile terminal, and the parsing unit 530 is configured to parse the converted coordinate set.
  • a display unit 540 configured to display a corresponding annotation handwriting according to the parsed coordinate set
  • the converted coordinate set is obtained by the mobile terminal according to the screen annotation event of the monitor, obtaining the coordinate set of the current screen image drawn and stored on the drawing canvas, and performing coordinate conversion on the coordinate set;
  • the current screen image includes the screen capture image and Annotated handwriting obtained from the screen annotation event.
  • the specific working process of the embodiment 1 of the remote annotation synchronization system implemented from the perspective of the interactive smart tablet may be as follows:
  • the interactive smart tablet sending unit 510 sends the screen image to the mobile device in real time, and is intercepted by the mobile device, and saved as a screen after the screen capture;
  • An Android drawing canvas (Canvas) is created by the mobile device, and any image or handwriting can be drawn on the drawing canvas by using the set brush (Paint class); the annotation operations in the embodiment of the present invention are all performed on the Android drawing canvas. .
  • the mobile terminal listens to the Android screen annotation event, draws the annotation handwriting according to the movement of the finger, that is, draws the curve of the draw drawing method of the Android drawing canvas in the onDraw method of the control, and records The currently drawn handwriting.
  • the screen annotation event is an operation different from the screen touch event.
  • an annotation toolbar or an annotation button for triggering the annotation function can be set on the mobile terminal, and when the user triggers the annotation function, the mobile terminal enters the monitoring.
  • Unit 540 displays the corresponding annotation handwriting based on the parsed coordinate set:
  • the upper left corner of the coordinate set is the coordinate origin
  • the converted coordinate set ( ⁇ , ⁇ ) is: the pixel coordinate of each point in the annotation point set relative to the upper left corner (xl, Yl is converted to (65535*xl/Xm, 65535*yl/Ym), where Xm is the horizontal resolution of the mobile screen and Ym is the vertical resolution of the mobile screen.
  • the interactive smart panel receiving unit 520 receives the converted coordinate set (A, B), and the parsing unit 530 parses the converted coordinate set, and the parsed coordinate set is (Xn*A/65535, Yn*B/65535), wherein Xn, Yn is the screen resolution of the smart tablet (large screen), and the interactive smart tablet displays the corresponding annotation handwriting according to the parsed coordinate set.
  • the interactive smart tablet can receive the coordinate set (Xn*xl/Xm, Yn*xl/Ym) converted by the mobile terminal, and use the coordinate set to display the annotation handwriting.
  • the interactive smart tablet can receive the coordinate set (xl, yl ) directly sent by the mobile terminal, and parse it into (Xn*xl/Xm, Yn*xl/Ym) and then perform the annotation handwriting. Show no.
  • the system embodiment 1 of remote annotation synchronization implemented from the perspective of an interactive smart tablet, because Remotely control the interactive smart tablet with the mobile device to perform annotation synchronization to ensure that the annotations displayed on the mobile device and the interactive smart tablet are consistent; the mobile device continuously receives and intercepts the image sent by the interactive smart tablet, and simultaneously sends related data of the annotation coordinate set information and the like.
  • the interactive smart tablet is operated by the interactive smart tablet according to the relevant data, so that the annotation on the mobile device is consistent with the annotation displayed on the interactive smart tablet, thereby ensuring that the user can disconnect the interactive smart tablet from the screen content. Operate (annotate) and interact with the audience.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

Procédé et système de synchronisation d'annotation à distance. Le procédé comprend les étapes consistant : à attendre un événement d'annotation d'écran (S210) ; à obtenir un ensemble de coordonnées d'une image d'écran courante dessinée et mémorisée sur un canevas de dessin quand un événement d'annotation d'écran est attendu (S220), l'image d'écran courante incluant une annotation manuscrite obtenue selon l'événement d'annotation d'écran ; à réaliser une transformation de coordonnées sur l'ensemble de coordonnées pour obtenir un ensemble de coordonnées transformé (S230) ; et à transmettre l'ensemble de coordonnées transformé à une tablette intelligente interactive, la tablette intelligente interactive analysant l'ensemble de coordonnées transformé et affichant une annotation manuscrite correspondante en fonction de l'ensemble de coordonnées analysé (S240). L'utilisation d'un dispositif mobile pour manipuler à distance une tablette intelligente interactive afin de réaliser la synchronisation d'annotation peut garantir que l'annotation affichée sur le dispositif mobile est conforme à celle affichée sur la tablette intelligente interactive, et qu'un utilisateur peut mettre en œuvre une opération pertinente sur un contenu sur l'écran à distance de la tablette intelligente interactive et interagir avec un public.
PCT/CN2016/090746 2015-12-16 2016-07-20 Procédé et système de synchronisation d'annotation à distance WO2017101440A1 (fr)

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