CN109120880A - Real-time conferencing annotation method and system based on intelligent terminal - Google Patents
Real-time conferencing annotation method and system based on intelligent terminal Download PDFInfo
- Publication number
- CN109120880A CN109120880A CN201811090738.6A CN201811090738A CN109120880A CN 109120880 A CN109120880 A CN 109120880A CN 201811090738 A CN201811090738 A CN 201811090738A CN 109120880 A CN109120880 A CN 109120880A
- Authority
- CN
- China
- Prior art keywords
- image
- module
- client
- screenshot
- desktop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
-
- 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]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The invention discloses a kind of real-time conferencing annotation method and system based on intelligent terminal, the present invention carries out screenshotss by the computer desktop to speaker, pass through related intermediate treatment, send image information in real time the client that user carries out meeting annotation, and image rendering is carried out on the client, then the operation for carrying out screenshotss or control aspect again, is finally saved in local to the image after annotation.Using the solution of the present invention, it can effectively realize that user carries out real-time annotation processing to conference content in local, solve various defect problems appeared in current real-time conferencing software, real-time annotation scheme of the invention is allowed to can be good at serving personnel participating in the meeting.
Description
Technical field
The invention belongs to Desktop Share technology neighborhoods, and in particular to a kind of real-time conferencing annotation side based on intelligent terminal
Case.
Background technique
Current meeting mode is usually that speaker is projected on curtain by the content that projector is saying oneself, and is listened
Person will stare at this curtain constantly and go to pay attention to the class, but in some meeting rooms, such as round table type meeting room, if the moment is wanted to stare at
Curtain needs to turn round, and such time is long, can allow and speaker is listened not feel like oneself, in addition if the content of hearer's intercommunication is wanted to do
Oneself some remark informations, nor easily.Thus, it is necessary to break through this traditional meeting mode, a kind of base is researched and developed
In share desktop technology, Desktop Share is realized in local area network, client carries out the reality that remarks and image save to related content
Shi Huiyi annotation system.
Though there are a small number of Desktop Share softwares at present, it still has the space further promoted, for example, QQ is provided
The function of teleengineering support desktop, but such function must first add as a friend could to use, and in very big possible feelings
Under condition, having many people in real-time conferencing is not good friend, QQ function this in this way cannot go again using.And others are such as
The function of real time remote control may be implemented in Teamviewer software, but this software does not do real-time Postil Function, i.e., objective
The function at family end cannot real meet demand.
Summary of the invention
Goal of the invention of the invention is: in view of the above problems, providing
Goal of the invention of the invention is a software of exploitation, can carry out meeting exchange, i.e. progress meeting picture it is shared with
And the function of being annotated in real time can be improved participant and be a visitor at a meeting efficiency, participant is facilitated to join by realizing a in this way software
To into meeting and do it is related notes so as to subsequent communication.
Real-time conferencing annotation method based on intelligent terminal of the invention, including the following steps:
Spaced screenshot processing is carried out to the computer desktop of meeting speaker, interception fixed quantity in each interval period
Desktop screenshot；Such as interval period is 1 second, the quantity of the desktop screenshot of interception is 15；
The desktop screenshot of interception is carried out data transmission handling, is transmitted to the client of meeting annotation user: by first table
Face screenshot is directly transferred to client；To non-first desktop screenshot, by it compared with previous desktop screenshot carries out image data,
The image change data of current desktop screenshot are transmitted to client；Even current desktop screenshot is not deposited with previous desktop screenshot
Change in image data, does not then transmit, skip current desktop screenshot；
Wherein, described image data manner of comparison specifically:
Current desktop screenshot and previous desktop screenshot are found in a desktop screenshot using interlacing with every column scan
When with pixel first and second pixels of variation occurring in current desktop screenshot, obtained by first and second current pixels
To an image change matrix, and save the location information and image block content of present image transformation matrices；
Continue to front desktop screenshot and previous desktop screenshot to search image change matrix with every column scan using interlacing,
Until scanning through whole picture desktop screenshot；Current desktop is obtained by the location information and image block content of all image change matrixes to cut
The image change data of figure；
Client carries out image reconstruction process based on currently received image change data and the reconstructed image being newly generated,
Current reconstructed image is generated, and image rendering processing is carried out to current reconstructed image, is realized to the computer desktop of meeting speaker
Real-time display annotates in real time in locally progress meeting for user and operates and save；
Wherein, if current to receive image change data for the first time, that is, the reconstructed image being newly generated is not present, then is based on working as
Preceding received image change data and received first desktop screenshot carry out image reconstruction process.
Meanwhile the invention also discloses the real-time conferencing annotation systems of the corresponding above method, including server-side and client；
Wherein, server-side is used for the speech content of display conference speaker, and acquisition display content and real-time Transmission are to visitor
Family end；Client is used for real-time display speech content, and realizes annotation operation in real time；
The server-side includes content display module, data acquisition module, data variation comparison process module, memory module
And data transmission module；
Wherein, content display module is used for the speech content of display conference speaker；
Data acquisition module carries out spaced screenshot processing to the speech content of display, and interception is solid in each interval period
The desktop screenshot of fixed number amount is simultaneously stored into memory module；
Data transmission module is by first desktop screenshot real-time Transmission in memory module to client；
Data variation comparison process module reads each non-first desktop screenshot in memory module in real time, and to its with it is previous
It opens desktop screenshot and carries out image data comparison, obtain the image change data of current desktop screenshot, and transmit mould by data
Block is by the image change real-time data transmission of current desktop screenshot to client；
The client includes memory module, image reconstruction module, image rendering processing module, annotation module, display mould
Block and transmission module；
Wherein, memory module is used to save the data of server-side transmission；
Transmission module is transmitted for realizing with the data of client；
Image reconstruction module is used to carry out figure based on currently received image change data and the reconstructed image being newly generated
As reconstruction processing, current reconstructed image is generated；The reconstructed image being newly generated if it does not exist is then become based on currently received image
Change data and received first desktop screenshot carries out image reconstruction process；
Image rendering processing module, image rendering processing module is for carrying out at rendering the reconstructed image being newly generated
Reason, and real-time display is carried out by display module；If directly carrying out wash with watercolours to first desktop screenshot there is currently no reconstructed image
Dye handles and carries out real-time display by display module；
Annotation module carries out annotation processing to the image currently shown for user.
Further, server-side of the invention and client respectively further comprise remote control module, and wherein client is remote
Process control module is used to send remote control notification to server-side, and obtains user and instruct in local remote control, passes through
Remote control is instructed and is manipulated position in the manipulation position of server-side by scaling, the instruction of remote control described in calculator
Server-side is sent to by the transmission module of local terminal；The long-range control that the remote control module of server-side is used to receive client is asked
It asks, and receives the remote control instruction sent by the client of remote control notification and manipulation position, then to its (remote control
Instruction and manipulation position) it carries out carrying out real-time display by local terminal content display module after corresponding operation.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Using the solution of the present invention, it can effectively realize that user carries out real-time annotation processing to conference content in local,
To solve various defect problems appeared in current real-time conferencing software；Meanwhile the present invention is by using the figure of dynamic division
As comparison method, pixel difference can be found faster in such a way that interlacing is every column scan to reduce the data volume of network transmission
Point allows the solution of the present invention can be good at serving personnel participating in the meeting so that the solution of the present invention be allowed to have good real-time.
Detailed description of the invention
Fig. 1 is meeting annotation system treatment process schematic diagram of the invention；
Fig. 2 is client effect diagram of the invention；
Fig. 3 is that Postil Function of the invention shows schematic diagram；
Fig. 4 is real-time edition exemplary diagram of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this hair
It is bright to be described in further detail.
The present invention carries out screenshotss by the computer desktop to speaker and is counted image information by related intermediate treatment
According to transmission, and carry out image rendering on the client, then carry out again screenshotss or control aspect operation, finally to annotation after
Image be saved in local, referring to Fig. 1, main processes are as follows:
(1) spaced image screenshot is carried out on the server, and in order to reduce the data volume of transmission, the present invention passes through
Image data comparison is carried out using the thought of dynamic division, only sends in this image and previous image and pixel variation occurs
Data reduce the utilization rate of bandwidth so as to which the quantity of transmission can be greatly reduced, so that good real-time effect is brought,
Specific method is: intercepting first image on the server, and sends client, while server and client for this image
A caching is all done to this image in end, server second image of interception, and by second image and first image
Pixel is compared, and comparative approach uses the thought of dynamic division, i.e. this two images use interlacing scan to sweep with every column simultaneously
The mode retouched removes to search first pixel that pixel variation occurs in first image and second image, by what is found
First changed pixel goes the pixel for searching another variation as first point that image change occurs therewith
Point, in this way by the found available image array of two pixels, then by the position of this image array
Information and picture material are sent in client after carrying out data encapsulation, and client passes through the figure saved before it again
As data progress data change, then the rendering display again in UI (user interface) again, completes the display work of image.
(2) in order to realize that data render is matched with the time delay of data receiver, the present invention uses a buffering on the client
Queue carries out data buffering maintenance and just the data of reading is put into buffering queue when having data readable in network, when
When needing image rendering, an image data is just read from queue and carries out relevant operation.In order to realize on the client
Annotation in real time, carries out screenshotss on the client first, then carries out relevant operation on the image after screenshotss again, be finally saved in
It is local, it is allowed to that Associated and access can be carried out after the meeting.
(3) further, the invention also includes remote control functions, i.e., when client request wants control server desktop
When, it needs first to issue control request, only just can be carried out long-range control after server end passes through the request, in this way, avoiding
A possibility that multiple client thinks control server simultaneously, while also avoiding generating when server is not desired to be controlled by client
Illegal control.Specific processing are as follows: slide the operation informations such as key by obtaining client keyboard and mouse, and calculate
Mouse position calculates the data such as mouse position on the server by scaling, then the relevant operation in client with
And the data such as key information are sent on server, server is what operation and mode of operation according to the judgement of these data
And position change, corresponding operation is then carried out, i.e., the correlation to document stored on server may be implemented by client
Operation.
Embodiment
Server end passes through QT (cross-platform C++ graphical user interface application program development frame) for the screen on speaker's computer
Curtain image carries out regular time screenshotss (data acquisition), such as 15 images were intercepted within 1 second time, after being truncated to image,
First image is first sent to the client of access, and is rendered immediately on the client；Then server end is again by remaining 14
The data changed will be occurred using the principle of dynamic division with previous image progress comparing respectively by opening image in image
It is transmitted, client carries out image reconstruction process after receiving image change data, based on a upper reconstructed image, obtains pair
Should before reconstructed image, if there is currently no reconstructed image, i.e., when receiving image change data after receiving first image, then
It is directly based upon first image and carries out image reconstruction process and image rendering.Within next data acquisition period, then by every frame figure
As carrying out comparing with previous frame image.
The realization of real-time Postil Function is mainly realized using the UI design of QT, specifically includes mark, infuse
It releases, the functions such as screenshotss preservation.Its specific workflow is to start serve end program first, the connection of each client is waited to ask
It asks, each client starts client-side program, inputs the IP address of server end, carries out TCP connection request, and server end passes through wound
Building new thread is that each client services, and thus establishes connection, and server starts to carry out screenshotss operation at this time, so
First screenshotss image is completely transferred to client afterwards, client renders the image in time, and server is to hereafter
Screenshotss data be all compared with previous, using interlacing every the thought of column surface sweeping algorithm and dynamic division, find out two kinds
The position coordinates of the matrix and differential image data are transmitted client, client docking by the difference matrix of image
The image change data received parse and be modified on nearest reconstruct original digital image data, after the completion of change again again
It is rendered.The Real-Time Sharing function of the desktop in entire scheme is thereby realized, if client is for the PPT that shows at present
The considerations of inside having oneself or doubt, want to carry out subsequent exchange, then user can be on the client by clicking mouse at this time
Mark or keyboard & display go out corresponding option of operation, select the operation for oneself wanting to carry out.Such as when right button mouse, there are three choosings
, screenshot, control, cancellation will then intercept current image and be shown on the desktop of client if it is screenshot, use
Then family the operation such as can be annotated to this image, be drawn, be write, be drawn lines, be saved, be cancelled with right button mouse.If objective
Family is the desktop for wanting control server end, then selects control button, can send control request to server end at this time, only work as clothes
Device end be engaged in by ability request to create control connection after the request, to avoid multiple clients while controlling the knot of a server
Fruit occurs.After its client effect picture is as shown in Fig. 2, receive data render on the client, right button progress can be clicked
Relevant operation, concrete operations include screenshotss and control, if clicking screenshotss, it is meant that client wants the data content to server end
The function of carrying out local editor and preservation, then client can intercept Current Content and in another property frame at this time
It is shown, relevant editor's preservation work, effect picture such as Fig. 3 institute can be carried out by carrying out right button operation in the property frame at this time
Showing, Fig. 4 is the correlation circumstance of editor, and this example is the verbal description for having carried out relevant circle note on picture and having added oneself,
Then user can do local preservation, so that it may complete the function of annotating in real time.If client wants to control server, that
Control button is clicked, client can send a control request to server at this time, if server-side agreement is controlled by the client
System, then carry out relevant connection and content is sent, if be not allowed to, which will be rejected.
The above description is merely a specific embodiment, any feature disclosed in this specification, except non-specifically
Narration, can be replaced by other alternative features that are equivalent or have similar purpose；Disclosed all features or all sides
Method or in the process the step of, other than mutually exclusive feature and/or step, can be combined in any way.
Claims (5)
1. the real-time conferencing annotation method based on intelligent terminal, characterized in that it comprises the following steps:
Spaced screenshot processing is carried out to the computer desktop of meeting speaker, the desktop of interception fixed quantity in each interval period
Screenshot；
The desktop screenshot of interception is carried out data transmission handling, is transmitted to the client of meeting annotation user: first desktop is cut
Figure is directly transferred to client；Non- first desktop screenshot will be worked as by it compared with previous desktop screenshot carries out image data
The image change data of front desktop screenshot are transmitted to client；
Wherein, described image data manner of comparison specifically:
To current desktop screenshot and previous desktop screenshot using interlacing with every column scan, find in a desktop screenshot with work as
When pixel first and second pixels of variation occurring in front desktop screenshot, one is obtained by first and second current pixels
A image change matrix, and save the location information and image block content of present image transformation matrices；
Continue to front desktop screenshot and previous desktop screenshot to search image change matrix with every column scan using interlacing, until
Scan through whole picture desktop screenshot；Current desktop screenshot is obtained by the location information and image block content of all image change matrixes
Image change data；
Client carries out image reconstruction process based on currently received image change data and the reconstructed image being newly generated, and generates
Current reconstructed image, and image rendering processing is carried out to current reconstructed image, it realizes to the real-time of the computer desktop of meeting speaker
Display annotates in real time in locally progress meeting for user and operates and save；Wherein, the reconstructed image being newly generated if it does not exist,
Then image reconstruction process is carried out based on currently received image change data and received first desktop screenshot.
2. the method as described in claim 1, which is characterized in that the interval period of screenshot processing is preferably 1 second.
3. method according to claim 1 or 2, which is characterized in that the quantity of the desktop screenshot intercepted in each interval period
Preferably 15.
4. the real-time conferencing annotation system based on intelligent terminal, which is characterized in that including server-side and client；
The server-side includes content display module, data acquisition module, data variation comparison process module, memory module sum number
According to transmission module；
Wherein, content display module is used for the speech content of display conference speaker；
Data acquisition module carries out spaced screenshot processing to the speech content of display, intercepts fixed number in each interval period
The desktop screenshot of amount is simultaneously stored into memory module；
Data transmission module is by first desktop screenshot real-time Transmission in memory module to client；
Data variation comparison process module reads each non-first desktop screenshot in memory module in real time, and to itself and previous table
Face screenshot carries out image data comparison, obtains the image change data of current desktop screenshot, and will by data transmission module
The image change real-time data transmission of current desktop screenshot is to client；
The client include memory module, image reconstruction module, image rendering processing module, annotation module, display module and
Transmission module；
Wherein, memory module is used to save the data of server-side transmission；
Transmission module is transmitted for realizing with the data of client；
Image reconstruction module is used to carry out image weight based on currently received image change data and the reconstructed image being newly generated
Structure processing, generates current reconstructed image；The reconstructed image being newly generated if it does not exist is then based on currently received image change number
Image reconstruction process is carried out according to received first desktop screenshot；
Image rendering processing module, image rendering processing module are used to carry out rendering processing to the reconstructed image being newly generated, and
Real-time display is carried out by display module；If directly being carried out at rendering to first desktop screenshot there is currently no reconstructed image
It manages and passes through display module and carry out real-time display；
Annotation module carries out annotation processing to the image currently shown for user.
5. system as claimed in claim 4, which is characterized in that the server-side and client respectively further comprise long-range control mould
Block；
Wherein the remote control module of client is used to send remote control notification to server-side, and obtains user in local
Remote control instruction, by scaling, remote control described in calculator is instructed in the manipulation position of server-side, and will remotely be grasped
Control instructs and manipulates position and is sent to server-side by the transmission module of local terminal；
The remote control module of server-side is used to receive the remote control notification of client, and receives through remote control notification
The remote control instruction and manipulation position that client is sent, then pass through local terminal content display module after carrying out corresponding operation to it
Carry out real-time display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090738.6A CN109120880A (en) | 2018-09-19 | 2018-09-19 | Real-time conferencing annotation method and system based on intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090738.6A CN109120880A (en) | 2018-09-19 | 2018-09-19 | Real-time conferencing annotation method and system based on intelligent terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109120880A true CN109120880A (en) | 2019-01-01 |
Family
ID=64859700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811090738.6A Pending CN109120880A (en) | 2018-09-19 | 2018-09-19 | Real-time conferencing annotation method and system based on intelligent terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109120880A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196675A (en) * | 2019-04-17 | 2019-09-03 | 华为技术有限公司 | A kind of method and electronic equipment of addition annotation |
| CN111428452A (en) * | 2019-11-27 | 2020-07-17 | 杭州海康威视数字技术股份有限公司 | Comment data storage method and device |
| CN112463092A (en) * | 2020-11-25 | 2021-03-09 | 深圳市皓丽智能科技有限公司 | Remote annotation method, smart phone and conference tablet |
| CN113596517A (en) * | 2021-07-13 | 2021-11-02 | 北京远舢智能科技有限公司 | Image freezing and labeling method and system based on mixed reality |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801758A (en) * | 2011-05-25 | 2012-11-28 | 株式会社OPTiM | Remote system and remote operation method for terminal |
| CN103064647A (en) * | 2012-12-24 | 2013-04-24 | 珠海市君天电子科技有限公司 | Method and device for mobile device screen quick display of computer |
| WO2016062004A1 (en) * | 2014-10-24 | 2016-04-28 | 中兴通讯股份有限公司 | Method and wireless terminal for screen sharing between wireless terminals |
| CN107196937A (en) * | 2017-05-19 | 2017-09-22 | 广州迅控电子科技有限公司 | With no paper conference system |
| CN107358402A (en) * | 2017-06-15 | 2017-11-17 | 华中师范大学 | A kind of with no paper meeting office device of LAN and its method of work |
| CN107678723A (en) * | 2017-09-30 | 2018-02-09 | 安徽联智创新软件有限公司 | A kind of desktop sharing system for long-distance education |
| CN107801038A (en) * | 2017-10-31 | 2018-03-13 | 灏瑰浆 | A kind of English long-distance education and test system and method |
-
2018
- 2018-09-19 CN CN201811090738.6A patent/CN109120880A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801758A (en) * | 2011-05-25 | 2012-11-28 | 株式会社OPTiM | Remote system and remote operation method for terminal |
| CN103064647A (en) * | 2012-12-24 | 2013-04-24 | 珠海市君天电子科技有限公司 | Method and device for mobile device screen quick display of computer |
| WO2016062004A1 (en) * | 2014-10-24 | 2016-04-28 | 中兴通讯股份有限公司 | Method and wireless terminal for screen sharing between wireless terminals |
| CN105592349A (en) * | 2014-10-24 | 2016-05-18 | 中兴通讯股份有限公司 | Method for screen sharing between wireless terminals and wireless terminal |
| CN107196937A (en) * | 2017-05-19 | 2017-09-22 | 广州迅控电子科技有限公司 | With no paper conference system |
| CN107358402A (en) * | 2017-06-15 | 2017-11-17 | 华中师范大学 | A kind of with no paper meeting office device of LAN and its method of work |
| CN107678723A (en) * | 2017-09-30 | 2018-02-09 | 安徽联智创新软件有限公司 | A kind of desktop sharing system for long-distance education |
| CN107801038A (en) * | 2017-10-31 | 2018-03-13 | 灏瑰浆 | A kind of English long-distance education and test system and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196675A (en) * | 2019-04-17 | 2019-09-03 | 华为技术有限公司 | A kind of method and electronic equipment of addition annotation |
| CN111428452A (en) * | 2019-11-27 | 2020-07-17 | 杭州海康威视数字技术股份有限公司 | Comment data storage method and device |
| CN111428452B (en) * | 2019-11-27 | 2023-09-05 | 杭州海康威视数字技术股份有限公司 | Annotation data storage method and device |
| CN112463092A (en) * | 2020-11-25 | 2021-03-09 | 深圳市皓丽智能科技有限公司 | Remote annotation method, smart phone and conference tablet |
| CN113596517A (en) * | 2021-07-13 | 2021-11-02 | 北京远舢智能科技有限公司 | Image freezing and labeling method and system based on mixed reality |
| CN113596517B (en) * | 2021-07-13 | 2022-08-09 | 北京远舢智能科技有限公司 | Image freezing and labeling method and system based on mixed reality |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11785056B2 (en) | Web browser interface for spatial communication environments | |
| CN109120880A (en) | Real-time conferencing annotation method and system based on intelligent terminal | |
| US9204099B2 (en) | Videoconferencing system providing virtual physical context | |
| US11380020B2 (en) | Promoting communicant interactions in a network communications environment | |
| US9813463B2 (en) | Phoning into virtual communication environments | |
| CN112235121B (en) | Method, device, equipment and storage medium for realizing online conference | |
| JP2022172232A (en) | Modification of video stream by using supplemental content for videoconference | |
| US20120246582A1 (en) | Interfacing with a spatial virtual communications environment | |
| CN108933965A (en) | screen content sharing method, device and storage medium | |
| CN110326290A (en) | It is watched while live content and the content of recording | |
| US20150201162A1 (en) | Displaying information about at least one participant in a video conference session | |
| JP2007329917A (en) | Video conference system, and method for enabling a plurality of video conference attendees to see and hear each other, and graphical user interface for videoconference system | |
| WO2012149796A1 (en) | Method and device for managing video resources in video conference | |
| JP2006101522A (en) | Video conference system, video conference system for enabling participant to customize cooperation work model, and method for controlling mixing of data stream for video conference session | |
| US10044979B2 (en) | Acquiring regions of remote shared content with high resolution | |
| US10574713B2 (en) | Self-adaptive sample period for content sharing in communication sessions | |
| CN116762332A (en) | Controlled user interface transitions for dedicated interrupt communication sessions | |
| US20240087180A1 (en) | Promoting Communicant Interactions in a Network Communications Environment | |
| CN105306872B (en) | Control the methods, devices and systems of multipoint videoconference | |
| CN114071063A (en) | Information sharing method, device, equipment and medium based on bidirectional option | |
| US20180018398A1 (en) | Positioning content in computer-generated displays based on available display space | |
| JP2009253625A (en) | Apparatus, method and program for information collection-video conference implementation control and video conference system | |
| US20230388357A1 (en) | 2d and 3d transitions for renderings of users participating in communication sessions | |
| KR20060110395A (en) | Conference system and method using electronic filing document | |
| CN116347145B (en) | Multi-device screen sharing method, screen throwing device, display device and sharing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
|
| RJ01 | Rejection of invention patent application after publication |