CN106921818A - A kind of video communication terminal, method and system - Google Patents
A kind of video communication terminal, method and system Download PDFInfo
- Publication number
- CN106921818A CN106921818A CN201510982391.6A CN201510982391A CN106921818A CN 106921818 A CN106921818 A CN 106921818A CN 201510982391 A CN201510982391 A CN 201510982391A CN 106921818 A CN106921818 A CN 106921818A
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- Prior art keywords
- video
- display screen
- display
- video communication
- communication terminal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/07—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail characterised by the inclusion of specific contents
- H04L51/10—Multimedia information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Controls And Circuits For Display Device (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The present invention relates to video communication technical field, more particularly to a kind of video communication terminal, method and system.In an embodiment of the present invention, the video communication terminal includes display, the display includes being arranged at main control module inside display casing, display screen, display screen control unit and back-lit projection unit, the display also includes being arranged at the video camera inside display casing, the display screen uses electronic-control dimming glass, the electronic-control dimming glass is light tight when off, as projection, electronic-control dimming glass all-transparent in conducting, the user that the video camera can be pointed in front of display screen is photographed.In an embodiment of the present invention, video camera is arranged at display screen middle part dead astern position in the display, make people when video communication is carried out, eyes can just to camera, the video image that so video camera is photographed seems that comparing is true, and video communication both sides can carry out normal expression in the eyes communication.
Description
Technical field
The present invention relates to video communication technical field, more particularly to a kind of video communication terminal, method and system.
Background technology
In the current communications field, video conference terminal and various video instant communication software applications are increasingly
Extensively, people can carry out exchanging for video and voice by network.When video communication is carried out, video leads to
News both sides must be equipped with display and camera, and display is used to show the video image of other side, camera
For gathering one's own side's video image.
In the prior art, camera is typically installed on the either above or below of display, or will be directly taken the photograph
As head is placed on, and during people's viewing screen, general head can just to the interposition of indicator screen
Put, and when video communication is carried out, the eyes of people need to be seen to camera, so, what camera was photographed
In overlooking or looking up state, video communication both sides seem very unnatural when Eye contact is carried out to personage, especially
In the case where indicator screen is larger, this problem is more serious.
The content of the invention
It is an object of the invention to provide a kind of video communication terminal, method and system, it is intended to solve existing skill
In art, camera is arranged above or below display, when video communication is carried out, camera shoots
To personage in overlooking or look up state, it appears very unnatural problem.
The present invention is achieved in that the invention provides a kind of video communication terminal, including display, institute
Display is stated including display casing, display module and main control module, the display module include display screen,
Back-lit projection unit and display screen control unit, the display also include：
Video camera, the video camera is connected with the main control module, and the video camera is arranged at the display
Dead astern position in shell in the middle part of the display screen, the camera of the video camera just to the display screen,
And do not block the light path when back-lit projection unit is projected to the display screen；
The display screen uses electronic-control dimming glass, the display screen control unit to control the electronic-control dimming glass
Conducting with shut-off, the electronic-control dimming glass by control shut-off when it is light tight, now function as projection, it is described
All-transparent when the controlled system of electronic-control dimming glass is turned on, now the video camera can be to the user in front of display screen
Imaged.
Further, it is 30 milliseconds, the electric-controlled light-regulating that the electronic-control dimming glass is controlled the time of shut-off
The time that glass is controlled system conducting is 1~10 millisecond.
Further, the back-lit projection unit uses digital light processing projector.
Further, the video camera is using global exposed light transducer.
Further, the video camera is synchronous with the clock of the display module.
Further, the video communication terminal also includes control device, the control device and the master control
Module is connected, and the control device receives the video image of other side and by the transmission of video images of one's own side to other side.
Another object of the present invention also resides in a kind of video communication side based on above-mentioned video communication terminal of offer
Method, the video communication method includes：
The video image of the main control module real-time reception other side；
The main control module is by the transmission of video images of the other side to the back-lit projection unit；
In the row-field scanning valid period, the display screen control unit controls the display screen shut-off, described aobvious
Display screen is light tight, and the back-lit projection unit is enterprising to the display screen by the projecting video image of the other side
Row display；
It is expert at field blanking interval, the display screen control unit controls the display screen conducting, the display screen
All-transparent, the video camera carries out shooting and forms one's own side's video image to the user in front of the display screen.
Further, in the main control module by the transmission of video images of the other side to the back-lit projection list
After unit, the video communication method also includes：
The main control module separates trip field sync signal and row-field scanning from the video image of the other side to be had
Effect signal, and the row field sync signal and row-field scanning useful signal are sent single to display screen control
First and described video camera.
Further, carry out shooting to the user in front of the display screen and form one's own side in the video camera to regard
After frequency image, the video communication method also includes：
By one's own side's transmission of video images to the main control module, the main control module is by institute for the video camera
State one's own side's transmission of video images to other side.
Another object of the present invention also resides in a kind of video communications system of offer, and the video communications system includes
Multiple video communication terminals as described above, video is realized between the video communication terminal by internet
The transmission of signal.
In an embodiment of the present invention, the video communication terminal includes display, and the display includes setting
Main control module, display screen, display screen control unit and the back-lit projection unit being placed in inside display casing,
The display also includes being arranged at the video camera inside display casing, and the display screen uses electric-controlled light-regulating
Glass, the electronic-control dimming glass is light tight when off, and as projection, the electronic-control dimming glass is being led
All-transparent when logical, the user that the video camera can be pointed in front of display screen is photographed.Of the invention
In embodiment, video camera is arranged at display screen middle part dead astern position in the display, makes people
When video communication is carried out, eyes can just to camera, and the video image that such video camera is photographed seems
Compare true, video communication both sides can carry out normal expression in the eyes communication.
Brief description of the drawings
Fig. 1 is the structure chart of the video communication terminal that first embodiment of the invention is provided；
Fig. 2 is the flow chart of the video communication method that second embodiment of the invention is provided；
Fig. 3 is the Organization Chart of the video communications system that third embodiment of the invention is provided.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing and reality
Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
Only it is used to explain the present invention, is not intended to limit the present invention.
First embodiment
First embodiment of the invention provides a kind of video communication terminal.The video terminal can be used for video council
View or daily Video chat etc..
Fig. 1 shows the structure chart of the video communication terminal that first embodiment of the invention is provided.For the ease of saying
It is bright, illustrate only the part related to the embodiment of the present invention.
A kind of video communication terminal, including display 1, display 1 include display casing 11, display mould
Block 12 and main control module 13, display module 12 include display screen 121, back-lit projection unit 122 and display
Screen control unit 123, display screen 121, back-lit projection unit 122, display screen control unit 123 and master control
Module 13 may be contained within inside display casing 11, back-lit projection unit 122, main control module 13 and display
Screen control unit 123 may be contained within the rear of display screen 121, main control module 13 and back-lit projection unit 122,
Display screen control unit 123 is connected, and display screen control unit 123 is connected with display screen 121, display 1
Also include：
Video camera 14, video camera 14 is connected with main control module 13, and video camera 14 is arranged at display casing
The dead astern position at the middle part of display screen 121 in 11, the camera of video camera 14 just to display screen 121, and not
Block light path when back-lit projection unit 122 is projected to display screen 121.
Display screen 121 uses electronic-control dimming glass, display screen control unit 123 to control leading for electronic-control dimming glass
Logical and shut-off, it is light tight when electronic-control dimming glass is by control shut-off, now function as projection, electronic-control dimming glass
Controlled to make all-transparent when turning on, now video camera 14 can be imaged to the user in front of display screen.
In the present embodiment, the conducting and shut-off of electronic-control dimming glass are controlled by display screen control unit 123.
When off, the liquid crystal molecule inside automatically controlled electronic-control dimming glass can be presented irregularly the electronic-control dimming glass
Spread state, now electronic-control dimming glass printing opacity but opaque, can show to video image；When giving
After electronic-control dimming glass is powered, the liquid crystal molecule inside automatically controlled electronic-control dimming glass is presented proper alignment, light
Can be with free penetrating, now electronic-control dimming glass moment presentation pellucidity, positioned at electronic-control dimming glass front
Light-transmissive electronic-control dimming glass enter video camera and be imaged.
Used as one embodiment of the invention, it is 30 milliseconds that the electronic-control dimming glass is controlled the time of shut-off,
The time that the electronic-control dimming glass is controlled system conducting is 1~10 millisecond.
Used as one embodiment of the invention, back-lit projection unit 122 uses digital light processing projector.It is described
Then digital light processing projector is again projected to the display light first by vision signal by digitized processing
Screen 121.
Used as one embodiment of the invention, the video camera 14 is using global exposed light transducer.
In the present embodiment, video camera 14 is made up of camera, sensor and video processing circuits.Video camera
14 using the global cmos image sensor or CCD (Charge-coupled Device, electric charge coupling for exposing
Close element) imageing sensor, it ensure that turning on the moment (1~10 millisecond) of all-transparent in electronic-control dimming glass
All pixels can complete exposure in inner sensor.
Used as one embodiment of the invention, back-lit projection unit 122 uses digital light processing projector.
In the present embodiment, the back-lit projection unit 122 is using digital light processing projector (Digital Light
Procession, abbreviation DLP), the digital light processing projector first by vision signal by digitized processing,
Then light is projected to the display screen 121 again.
Used as one embodiment of the invention, video camera 14 is synchronous with the clock of display module 12.
In the present embodiment, vision signal transmitting terminal is in order that the row scanning and field scan at video reception end
It is synchronous, in vision signal transmitting terminal, when often scanning through a line image, a horizontal synchronizing pulse is added,
When often scanning through a field picture, a field system chronizing impulse is added, they are sent together with video signal
To video image receiving terminal.Video reception end, when video signal projection is carried out, is also to be swept line by line
Retouch, scanning light beam is scanned to the right since the left end of display screen 121, often scan through a line, scanning light beam
(scanning light beam is returned from display screen right-hand member to need the left end for coming back to display screen 121 to carry out the scanning of next line
The process for returning left end is referred to as return period, and scanning light beam only just starts return period when horizontal synchronizing pulse is reached),
It is called horizontal blanking (i.e. horizontal blanking) between this for some time.When scanning through one, scanning signal is needed
Coming back to the left upper end of display screen 121 carries out the scanning of next, is called for some time between this vertical
Straight blanking (i.e. field blanking).In the present embodiment, the mesh synchronous with the clock of display module 12 of video camera 14
Be：Ensure that video camera 14 is expert at and the exposure of sensor is completed during (field) blanking, so as to ensure sensor
Intake is that the scene in the front of display screen 121 projects to display screen 121 rather than back-lit projection unit 122
Video image.Video camera 14 can be using PTZ (Pan Tilt Zoom, rotate zoom) video camera, can be
Horizontal tilt is rotated, and can carry out optical zoom.
Used as one embodiment of the invention, the video communication terminal also includes control device 2, control device 2
It is connected with main control module 13, control device 2 receives the video image of other side and by the transmission of video images of one's own side
To other side.
In the present embodiment, control module 2 can be connected with display 1 by HDMI.
In the present embodiment, the video camera is arranged in the display casing in the middle part of the display screen
Dead astern position, before the video camera can be pointed to the display screen while display screen display image
The user of side is photographed.So, people when video communication is carried out, eyes can just to camera make
The video image that video camera is photographed seems that comparing is true, and video communication both sides can carry out normal expression in the eyes ditch
It is logical.
Second embodiment
Second embodiment of the invention provides a kind of video communication method.The executive agent of the video communication method
It is video communication terminal as shown in Figure 1.
Fig. 2 shows the flow chart of the video communication method that second embodiment of the invention is provided.For the ease of saying
It is bright, illustrate only the part related to the embodiment of the present invention.
In S201, the video image of the real-time reception other side of the main control module 13.
In the present embodiment, used as the communication device between one's own side and other side, it passes through network to control device 2
Video is set up with other side to be connected, receive the video image that transmits of other side, and by the transmission of video images to master
Control module 13.
In S202, the main control module 13 is by the transmission of video images of the other side to the back-lit projection
Unit 122.
In the present embodiment, the back-lit projection unit 122 is using digital light processing projector (Digital Light
Procession, abbreviation DLP), the digital light processing projector first by vision signal by digitized processing,
Then video signal projection to the display screen 121 is shown again.
In S203, the main control module 13 separates trip field synchronization letter from the video image of the other side
Number and row-field scanning useful signal, and the row field sync signal and row-field scanning useful signal are sent to institute
State display screen control unit 123 and the video camera 14.
In the present embodiment, vision signal transmitting terminal is in order that the row scanning and field scan at video reception end
It is synchronous, in vision signal transmitting terminal, when often scanning through a line image, a horizontal synchronizing pulse is added,
When often scanning through a field picture, a field system chronizing impulse is added, they are sent together with video signal
To video image receiving terminal.Video reception end, when video signal projection is carried out, is also to be swept line by line
Retouch, scanning light beam is scanned to the right since the left end of display screen 121, often scan through a line, scanning light beam
(scanning light beam is returned from display screen right-hand member to need the left end for coming back to display screen 121 to carry out the scanning of next line
The process for returning left end is referred to as return period, and scanning light beam only just starts return period when horizontal synchronizing pulse is reached),
It is called horizontal blanking (i.e. horizontal blanking) between this for some time.When scanning through one, scanning signal is needed
Coming back to the left upper end of display screen 121 carries out the scanning of next, is called for some time between this vertical
Straight blanking (i.e. field blanking).
In S204, in the row-field scanning valid period, the display screen control unit controls the display screen to close
Disconnected, the display screen is light tight, and the back-lit projection unit is by the projecting video image of the other side described in
Shown on display screen；
In S205, field blanking interval of being expert at, the display screen control unit controls the display screen conducting,
The display screen all-transparent, the video camera carries out shooting and forms one's own side to the user in front of the display screen
Video image.
In the present embodiment, the time of row scanning, field scan, horizontal blanking and field blanking is all very of short duration, leads to
Often it is a few tens of milliseconds or several milliseconds, therefore, it is shown on the display screen 121 that people's naked eyes are seen continuous
Picture, and it is also continuous to image the video that photographs of 14 machines in people's naked eyes.
In S206, the video camera 14 by one's own side's transmission of video images to the main control module 13,
The main control module 13 is by one's own side's transmission of video images to the control device 2, the control device 2
One's own side's video image is transmitted through the network to other side.
3rd embodiment
Third embodiment of the invention provides a kind of video communications system.
Fig. 3 shows the Organization Chart of the video communications system that third embodiment of the invention is provided.For the ease of saying
It is bright, illustrate only the part related to the embodiment of the present invention.
A kind of video communications system, including multiple video communication terminals as described in Figure 1, the video communication
The transmission of vision signal is realized between terminal by internet.
In the present embodiment, video communication terminal is two, and respectively one's own side's video communication terminal and other side regards
Frequency communicating terminal, one's own side's vision signal that the video camera 14 in one's own side's video communication terminal will be photographed send to
One's own side's main control module 13, one's own side's main control module 13 is again sent to one's own side's control device 2 one's own side's vision signal,
One's own side's control device 2 is by one's own side's vision signal by network transmission to other side's control device 2, other side's control dress
2 are put by one's own side's video signal transmission to other side's main control module 13, other side's main control module 13 believes one's own side's video
Number send to other side's back-lit projection unit 122, other side's back-lit projection unit 122 is by one's own side's projecting video image
Shown to other side's display screen 121.Meanwhile, other side's video that other side's video communication terminal is photographed
Image is transmitted to one's own side's video communication terminal and shown in the same way.So video communication both sides can
Realize real-time video communication and exchange.
In an embodiment of the present invention, the video communication terminal includes display, and the display includes setting
Main control module, display screen, display screen control unit and the back-lit projection unit being placed in inside display casing,
The display also includes being arranged at the video camera inside display casing, and the display screen uses electric-controlled light-regulating
Glass, the electronic-control dimming glass is light tight when off, and as projection, the electronic-control dimming glass is being led
All-transparent when logical, the user that the video camera can be pointed in front of display screen is photographed.Of the invention
In embodiment, video camera is arranged at display screen middle part dead astern position in the display, makes people
When video communication is carried out, eyes can just to camera, and the video image that such video camera is photographed seems
Compare true, video communication both sides can carry out normal expression in the eyes communication.
One of ordinary skill in the art will appreciate that：The step of realizing above method embodiment or part steps can
To be completed by the related hardware of programmed instruction, foregoing program can be stored in embodied on computer readable storage
In medium, the program upon execution, performs the step of including above method embodiment, and foregoing storage is situated between
Matter includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in this hair
Any modification, equivalent and improvement made within bright spirit and principle etc., should be included in the present invention
Protection domain within.
Claims (10)
1. a kind of video communication terminal, including display, the display includes display casing, display mould
Block and main control module, the display module include display screen, back-lit projection unit and display screen control unit,
Characterized in that, the display also includes：
Video camera, the video camera is connected with the main control module, and the video camera is arranged at the display
Dead astern position in shell in the middle part of the display screen, the camera of the video camera just to the display screen,
And do not block the light path when back-lit projection unit is projected to the display screen；
The display screen uses electronic-control dimming glass, the display screen control unit to control the electronic-control dimming glass
Conducting with shut-off, the electronic-control dimming glass by control shut-off when it is light tight, now function as projection, it is described
All-transparent when the controlled system of electronic-control dimming glass is turned on, now the video camera can be to the user in front of display screen
Imaged.
2. video communication terminal as claimed in claim 1, it is characterised in that the electronic-control dimming glass quilt
It is 30 milliseconds to control the time of shut-off, and the time that the electronic-control dimming glass is controlled system conducting is 1~10 millisecond.
3. video communication terminal as claimed in claim 2, it is characterised in that the back-lit projection unit is adopted
Use digital light processing projector.
4. video communication terminal as claimed in claim 3, it is characterised in that the video camera is using global
Exposed light transducer.
5. video communication terminal as claimed in claim 4, it is characterised in that the video camera is aobvious with described
The clock for showing module is synchronous.
6. the video communication terminal as described in claim 1-5, it is characterised in that the video communication terminal
Also include control device, the control device is connected with the main control module, the control device receives other side
Video image and by the transmission of video images of one's own side to other side.
7. a kind of video communication method of the video communication terminal based on described in claim 1, it is characterised in that
The video communication method includes：
The video image of the main control module real-time reception other side；
The main control module is by the transmission of video images of the other side to the back-lit projection unit；
In the row-field scanning valid period, the display screen control unit controls the display screen shut-off, described aobvious
Display screen is light tight, and the back-lit projection unit is enterprising to the display screen by the projecting video image of the other side
Row display；
It is expert at field blanking interval, the display screen control unit controls the display screen conducting, the display screen
All-transparent, the video camera carries out shooting and forms one's own side's video image to the user in front of the display screen.
8. video communication method as claimed in claim 7, it is characterised in that in the main control module by institute
State after transmission of video images to the back-lit projection unit of other side, the video communication method also includes：
The main control module separates trip field sync signal and row-field scanning from the video image of the other side to be had
Effect signal, and the row field sync signal and row-field scanning useful signal are sent single to display screen control
First and described video camera.
9. video communication method as claimed in claim 8, it is characterised in that in the video camera to described
User in front of display screen is carried out after shooting forms one's own side's video image, and the video communication method is also wrapped
Include：
By one's own side's transmission of video images to the main control module, the main control module is by institute for the video camera
State one's own side's transmission of video images to other side.
10. a kind of video communications system, it is characterised in that the video communications system includes multiple such as rights
It is required that the video communication terminal described in 1-6, realizes that video is believed between the video communication terminal by internet
Number transmission.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510982391.6A CN106921818A (en) | 2015-12-24 | 2015-12-24 | A kind of video communication terminal, method and system |
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|---|---|---|---|
| CN201510982391.6A CN106921818A (en) | 2015-12-24 | 2015-12-24 | A kind of video communication terminal, method and system |
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| CN106921818A true CN106921818A (en) | 2017-07-04 |
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| CN201510982391.6A Pending CN106921818A (en) | 2015-12-24 | 2015-12-24 | A kind of video communication terminal, method and system |
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| CN108965771B (en) * | 2018-09-29 | 2021-01-26 | 京东方科技集团股份有限公司 | Video call control device and method and video call system |
| WO2020097891A1 (en) * | 2018-11-15 | 2020-05-22 | 李庆远 | Video chat device and method |
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