CN106454204A - Naked eye stereo video conference system based on network depth camera - Google Patents
Naked eye stereo video conference system based on network depth camera Download PDFInfo
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- CN106454204A CN106454204A CN201610904135.XA CN201610904135A CN106454204A CN 106454204 A CN106454204 A CN 106454204A CN 201610904135 A CN201610904135 A CN 201610904135A CN 106454204 A CN106454204 A CN 106454204A
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- video
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/271—Image signal generators wherein the generated image signals comprise depth maps or disparity maps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention provides a naked eye stereo video conference system based on a network depth camera, which runs in working states (A and B) simultaneously. In the two working states, hardware equipment of a collecting end, a video transmission system and a display end are the same, but data transmission directions in the two working states are opposite. The system performs real-time collection on a conference site by utilizing the collecting end, performs real-time synchronizing, zipping, coding and transmitting of collected video by utilizing the video transmission system, receives data transmitted by the Internet in real time at the display end with a specific IP address, and decodes, unzips and conducts three-dimensional synthesis on the data, so that naked eye stereo video is generated; and the naked eye stereo video is displayed in a naked eye stereo display, so that participants can watch the naked eye stereo video. The naked eye stereo video conference system is high in immersion and degree of freedom, large in information amount, low in transmission bandwidth and simple in collection device.
Description
Technical field
The present invention relates to bore hole three-dimensional video-frequency technology, particularly to a kind of bore hole three-dimensional video-frequency based on network depth camera
Conference system.
Background technology
, as a kind of new 3 D video technology, Three-dimensional Display terminal therein can be simultaneously for bore hole three-dimensional video-frequency technology
There is provided the visual cues of three dimensions to beholder, its feeling of immersion non-generic two dimension display can be compared.Bore hole three-dimensional video-frequency meeting
Conference system provides the visually-perceptible of various dimensions by bore hole three-dimensional video-frequency technology to participant, and its market potential is larger.Traditional
Stereo video conferencing system is made up of collection terminal, Transmission system and display end three part：Collection terminal is using the binocular solid demarcated
Camera, from left and right two angle acquisition meeting-place information, obtains horizontal parallax image, the collection to binocular solid camera is real-time simultaneously
Synchronous；The synchronous horizontal parallax image obtaining is transmitted by Transmission system by network；Display end receives Transmission system
The horizontal parallax image transmitting, and it is carried out with D encoding, form the display video of conventional stereo video conferencing system.Attend a meeting
Person passes through to wear the meeting-place scene that polarization, shutter or red indigo plant glasses just can watch collection terminal.In traditional stereo video conferencing
In system, participant needs to wear auxiliary viewing equipment, and the information obtaining only has the information of left and right two width anaglyphs, attends a meeting
The viewing freedom of person is relatively low, and the information content of acquisition is limited.
Content of the invention
It is contemplated that realizing a kind of high-immersion, high-freedom degree, large information capacity, low transmission bandwidth and harvester is simple
Bore hole stereo video conferencing system.
In order to achieve the above object, the present invention proposes a kind of bore hole stereo video conferencing system based on network depth camera
System, as shown in Figure 1.This system by gathering/display end I, Video transmission system and collection/display end II tri- part form, its
Middle collection/display end I includes network depth camera and naked-eye stereoscopic display, and Video transmission system includes data is activation/reception
Server I, internet data transmission/the reception server II, collection/display end II includes network depth camera and bore hole is three-dimensional
Display.This system simultaneously works in two kinds of working conditions of A, B.
Working condition A：The network depth collected by camera meeting-place I scene of collection/display end I, and the depth collecting is regarded
Frequency and color video synchronize, compress and encode, input video Transmission system, and data is activation/the reception server I is to specific
IP address and specific port send the video data after coding；Read in the corresponding ports of data is activation/the reception server II
Through deep video and the color video of internet transmissions, and it is decoded, decompressed and three-dimensional synthesis, and then generated bore hole
Three-dimensional video-frequency, is input to the naked-eye stereoscopic display of collection/display end II, for beholder's viewing of meeting-place II.
Working condition B：The network depth collected by camera meeting-place II scene of collection/display end II, simultaneously by the depth obtaining
Video and color video carry out processing with working condition A identical, input video Transmission system；In data is activation/reception service
The corresponding ports of device I receive, and generate the bore hole three-dimensional video-frequency of the beholder's viewing for meeting-place I.
The collection terminal of the described present invention, including the collecting device of collection/display end I and collection/display end II, using depth
Camera obtains deep video and the color video of meeting-place three-dimensional scenic, it is synchronized simultaneously.Assume in the time betWhen
Carve, the corresponding deep video frame of acquisition isD(x,y), the corresponding color video frame of acquisition isV(x,y), wherein, (x,y) be
Deep video frame and the pixel coordinate of color video frame.The present invention and regards to video frame rate according to bore hole stereo video conferencing system
Frequency quality requirement, synchronous deep video and color video in two ways.If having high demands to video frame rate, by deep video
Frame and the synthesis of color video frameDVForm, referred to asDVFrame, composite function is：
（1）
Wherein,D col Horizontal resolution for deep video frame.If high to video quality demands, by deep video frame and colour
Frame of video synthesizesRGBDForm, referred to asRGBDFrame, composite function is：
（2a）
（2b）
（2c）
（2d）
Wherein,V(x,y) beRGBTriple channel image,D(x,y) it is single channel image,R、G、B、DIt is respectivelyRGBDFour of frame
Autonomous channel.
The Video transmission system of the described present invention, by obtainDVFrame orRGBDFrame is compressed by compression algorithm, obtains
To corresponding compressed data, compressed data is sent to using internet transmissions control protocol simultaneously and there is the aobvious of particular ip address
Show end, display end receiving compressed data on particular port, the flow chart of data processing of Video transmission system proposed by the present invention is such as
Shown in accompanying drawing 3.According to the big feature of bore hole stereo video conferencing system data amount, the present invention is using towards connectionless communication association
View（UDP）；In order to ensure video quality, the present invention by the way of flag bit is combined with counter, in Video transmission system
End on receive data screened and rejected, to avoid the impact to bore hole three-dimensional video-frequency for the Network Packet Loss.Every frame compression number
Byte is unit according to this, and the compressed data byte length of every two field picture is not fixed it is assumed that its length isC, Video transmission system will
Each sends being dimensioned to of bagS, then the number of every frame transmission bagNFor：
（3）
Wherein, floor is downward bracket function.It is not enough that last sends bag sizeS, its sizeS rem For：
（4）
Wherein, mod is remainder function.In the Video transmission system of the present invention, to frontN- 1 sends bag setting flag bit is 1,
ToNThe individual bag setting flag bit that sends is 2, sends, to all, the byte length that bag arranges currently transmitted frame simultaneouslyC.In the present invention
Video transmission system in, the IP address according to display end and receiving port number, transmission of video address structure body is set, and thus
Determine bore hole stereo video data transmission whereabouts on the internet.
The display end of the described present invention, including the display device of collection/display end I and collection/display end II, display end exists
Isolate receiving port number in transmission of video address structure body, and stand through the bore hole that internet sends in the acquisition of this port numbers
Volumetric video data, this data is received in the form of packet.And then the packet flag bit receiving is judged, and update
The data packet count device receiving.When packet flag bit is 2, and data packet count device is equal toNWhen+1, display end is to receiving
Data package, constitute compression after video requency frame data.Data due to receiving have passed through the pressure of Video transmission system
Contracting and coding, therefore need it is carried out with corresponding decoding in display end and decompress, and then obtain completeDVFrame orRGBDFrame.
Using the directionality mapping method of anaglyph, the display parameters of the naked-eye stereoscopic display according to display end, generate display end
Required anaglyph sequence, using stereo-picture composition algorithm, generates the stereo-picture of sub-pixel precision, stands for bore hole
The display of volumetric video conference system display end.
A kind of bore hole stereo video conferencing system based on network depth camera proposed by the present invention, this system works simultaneously
In two kinds of working conditions of A, B, in two kinds of working conditions, collection terminal, Video transmission system are identical with the hardware device of display end,
But the data transfer direction of two kinds of working conditions is contrary.This system carries out Real-time Collection using collection terminal to meeting-place, using video
Transmission system to the video real-time synchronization collecting, compression, coding and is transmitted, real-time in the display end with particular ip address
Receive the data that internet transmits, and decode it, decompress and three-dimensional synthesis, and then generate bore hole three-dimensional video-frequency, stand in bore hole
Show on body display, for participant's viewing.This system is a kind of high-immersion, high-freedom degree, large information capacity, low transmission band
Width and harvester simple bore hole stereo video conferencing system.
Brief description
Accompanying drawing 1 is a kind of bore hole stereo video conferencing system framework figure based on network depth camera
Accompanying drawing 2 is working state of system A proposed by the present invention and working condition B
Accompanying drawing 3 is Video transmission system flow chart of data processing figure proposed by the present invention
Accompanying drawing 4 is a kind of bore hole stereo video conferencing system embodiment based on network depth camera
Shown by reference numeral in above-mentioned accompanying drawing is：
1 working condition A, 2 working conditions B, 3 meeting-place I beholders, 4 collection/display end I, 5 naked-eye stereoscopic displays, 6 networks are deep
Degree camera, 7 Video transmission systems, 8 data is activations/the reception server I, 9 internets, 10 data is activations/the reception server II, 11
Collection/display end II, 12 meeting-place II beholders, the naked-eye stereoscopic display of 13 collection/display end II, 14 collection/display end II
Network depth camera, 15 DVFrame, 16RGBDFrame, 17 reception IP address and port numbers, 18 compressed datas, 19 flag bits, 20
Send the byte length of frame, after 21 decompressionsDVFrame.
It should be appreciated that above-mentioned accompanying drawing simply schematically, is not drawn to draw.
Specific embodiment
The following detailed description of a kind of bright bore hole stereo video conferencing system based on network depth camera of this law one
Exemplary embodiments, are further described specifically to the present invention.Be necessary it is pointed out here that, following examples are served only for this
Invention is described further it is impossible to be interpreted as limiting the scope of the invention, and skilled person is according to upper for this art
State present invention the present invention to be made with some nonessential improvement and adjusts, still fall within protection scope of the present invention.
The present invention proposes a kind of bore hole stereo video conferencing system based on network depth camera.Described system includes adopting
Collection/display end I, Video transmission system and collection/display end II tri- part composition, wherein collection/display end I includes network depth
Camera and naked-eye stereoscopic display, Video transmission system includes data is activation/the reception server I, internet data sends/connects
Receive server II, collection/display end II includes network depth camera and naked-eye stereoscopic display.This system simultaneously works in A, B
Two kinds of working conditions, system framework is as shown in Figure 1.
Working condition A：Collection/display end I, by the use of network Kinect camera as collection terminal, enters to meeting-place I three-dimensional scenic
Row Real-time Collection, the deep video collecting and color video are synchronized, compress and encode, input video Transmission system,
Send to 6000 ports of the service end for 192.168.1.3 for the IP address, in this embodiment, compression algorithm adopts JPEG
（Joint Photographic Experts Group）Compression standard is compressed；The display device of collection/display end II is
Auto-stereoscopic display, reads in 6000 ports of collection/display end II and regards through the deep video of internet transmissions and colour
Frequently, and be decoded, decompress and three-dimensional synthesis, and then generate bore hole three-dimensional video-frequency, it is input to auto-stereoscopic display, with
For meeting-place II participant viewing.
Working condition B：Collection/display end II gathers meeting-place II field also with network Kinect camera as collection terminal
The deep video obtaining and color video are carried out processing with working condition A identical, input video Transmission system by scape simultaneously；
Receive in the corresponding ports of data is activation/the reception server I, and decoded, decompression and three-dimensional synthesis, generate the sight for meeting-place I
The bore hole three-dimensional video-frequency of the person's of seeing viewing.
Collection terminal in the present embodiment, including the collecting device of collection/display end I and collection/display end II, using network
Kinect camera obtains deep video and the color video of meeting-place three-dimensional scenic, it is synchronized it is assumed that in the time being simultaneouslyt
Moment, the corresponding deep video frame of acquisition isD(x,y), the corresponding color video frame of acquisition isV(x,y), wherein, (x,y) for deep video frame and color video frame pixel coordinate.According to bore hole stereo video conferencing system to video frame rate and video
Quality requirement, synchronous deep video and color video in two ways.If having high demands to video frame rate, by deep video frame
With the synthesis of color video frameDVForm, referred to asDVFrame, composite function is：
（1）
Wherein,D col Horizontal resolution for deep video frame.If high to video quality demands, by deep video frame and colour
Frame of video synthesizesRGBDForm, referred to asRGBDFrame, composite function is：
（2a）
（2b）
（2c）
（2d）
WhereinR、G、B、DIt is respectivelyRGBDFour autonomous channels of frame.By obtainDVFrame orRGBDFrame is calculated by JPEG compression
Method is compressed, and obtains corresponding compressed data.By compressed data input video Transmission system, carry out internet transmissions.
The Video transmission system of the described present invention, by obtainDVFrame orRGBDFrame is compressed by compression algorithm, obtains
To corresponding compressed data.Using UDP, the compressed data that collection terminal gathers is sent to IP address is 192.168.1.3's simultaneously
Display end, display end receiving compressed data on 6000 ports, the flow chart of data processing of the Video transmission system of the present embodiment is such as
Shown in accompanying drawing 3.In order to ensure video quality, in this embodiment by the way of flag bit is combined with counter, pass in video
The end on of defeated system is received data and is screened and reject, to avoid the impact to bore hole three-dimensional video-frequency for the Network Packet Loss.Every frame
Compressed data in units of byte, do not fix by the compressed data byte length of every two field picture, and its length isC=336484 bytes,
Each is sent being dimensioned to of bag by Video transmission systemS=1024 bytes, then the number of every frame transmission bagNFor：
（3）
Wherein, floor is downward bracket function,N= 329.It is not enough that last sends bag sizeS, its sizeS rem For：
（4）
Wherein, mod is remainder function,S rem =612 bytes.In the Video transmission system of the present invention, send bag to first 328
Setting flag bit is 1, and the 329th is sent with bag setting flag bit is 2, sends, to all, the word that bag arranges currently transmitted frame simultaneously
Section lengthC=336484 bytes.In the Video transmission system of the present invention, the IP address according to display end and receiving port number,
Setting transmission of video address structure body, and thereby determine that bore hole stereo video data transmission whereabouts on the internet.
The display end of the described present invention, including the display device of collection/display end I and collection/display end II, display end exists
Isolate receiving port number in transmission of video address structure body, and stand through the bore hole that internet sends in the acquisition of this port numbers
Volumetric video data, this data is received in the form of packet.And then the packet flag bit receiving is judged, and update
The data packet count device receiving.When packet flag bit is 2, and when data packet count device is equal to 330, display end is to receiving
Data packages, and constitutes the video requency frame data after compression.Data due to receiving have passed through the compression of Video transmission system
And coding, therefore need it is carried out with corresponding decoding in display end and decompress, and then obtain completeDVFrame orRGBDFrame.Profit
With the directionality mapping method of anaglyph, the display parameters of the auto-stereoscopic display according to display end, generate display end institute
The parallax graphic sequence needing, using stereo-picture composition algorithm, generates the stereo-picture of sub-pixel precision, for bore hole stereopsis
The display of frequency conference system display end, this embodiment is as shown in Figure 4.
A kind of bore hole stereo video conferencing system based on network depth camera that the present embodiment is realized, this system work simultaneously
Make in two kinds of working conditions of A, B, using collection terminal, Real-time Collection is carried out to meeting-place, using Video transmission system to collecting
Video real-time synchronization, compression, coding and transmission, the number transmitting in the display end real-time reception internet with particular ip address
According to, and decode it, decompress and three-dimensional synthesis, and then generate bore hole three-dimensional video-frequency, naked-eye stereoscopic display shows, for
Participant watches.This system is a kind of high-immersion, high-freedom degree, large information capacity, low transmission bandwidth and harvester is simple
Bore hole stereo video conferencing system.
Claims (4)
1. a kind of bore hole stereo video conferencing system based on network depth camera is it is characterised in that this system is by gathering/show
End I, Video transmission system and collection/display end II tri- part composition, wherein collection/display end I include network depth camera with
Naked-eye stereoscopic display, Video transmission system includes data is activation/the reception server I, internet data sends/receive service
Device II, collection/display end II includes network depth camera and naked-eye stereoscopic display；This system simultaneously works in two kinds of works of A, B
Make state；In working condition A, the network depth collected by camera meeting-place I scene of collection/display end I, and the depth collecting is regarded
Frequency and color video synchronize, compress and encode, input video Transmission system, and data is activation/the reception server I is to specific
IP address and specific port send the video data after coding, read in the corresponding ports of data is activation/the reception server II
Through deep video and the color video of internet transmissions, and it is decoded, decompressed and three-dimensional synthesis, and then generated bore hole
Three-dimensional video-frequency, is input to the naked-eye stereoscopic display of collection/display end II, for beholder's viewing of meeting-place II；Working condition B
In, the network depth collected by camera meeting-place II scene of collection/display end II, the deep video obtaining and color video are entered simultaneously
Row is processed with working condition A identical, and input video Transmission system connects in the corresponding ports of data is activation/the reception server I
Receive, and decoded, decompression and three-dimensional synthesis, generate the bore hole three-dimensional video-frequency of the beholder's viewing for meeting-place I；Collection terminal includes adopting
The collecting device of collection/display end I and collection/display end II, using depth camera obtain the deep video of meeting-place three-dimensional scenic with
Color video, synchronizes to it simultaneously；The frame of video obtaining is compressed transmitting by Video transmission system；Display end includes adopting
The display device of collection/display end I and collection/display end II.
2. a kind of bore hole stereo video conferencing system based on network depth camera according to claim 1, its feature exists
In, the synchronizing process of described collection terminal, deep video and the color video of meeting-place three-dimensional scenic is obtained using depth camera, according to
Bore hole stereo video conferencing system regards to video frame rate and video quality demands, in two ways synchronous deep video and colour
Frequently, if having high demands to video frame rate, by deep video frame and the synthesis of color video frameDVForm, referred to asDVFrame, composite function
For, wherein deep video frame isD(x,y), corresponding color video frame
ForV(x,y), (x,y) for deep video frame and color video frame pixel coordinate,D col Horizontal resolution for deep video frame
Rate；If high to video quality demands, by deep video frame and the synthesis of color video frameRGBDForm, referred to asRGBDFrame, synthesis
Function is, wherein,V(x,y) beRGBTriple channel image,D(x,y) it is single channel image,R、G、B、DIt is respectivelyRGBDFour autonomous channels of frame.
3. a kind of bore hole stereo video conferencing system based on network depth camera according to claim 1, its feature exists
In, described Video transmission system, in order to ensure video transmission quality, by the way of flag bit is combined with counter, regarding
The end on of frequency Transmission system is received data and is screened and reject, to avoid the impact to bore hole three-dimensional video-frequency for the Network Packet Loss,
In this Video transmission system, to frontN- 1 sends bag setting flag bit is 1, to theNThe individual bag setting flag bit that sends is 2, with
When to all send bag arrange currently transmitted frames byte lengthsC.
4. a kind of bore hole stereo video conferencing system based on network depth camera according to claim 1, its feature exists
In described display end, using the directionality mapping method of anaglyph, the display ginseng of the naked-eye stereoscopic display according to display end
Number, generates the parallax graphic sequence required for display end, using stereo-picture composition algorithm, generates the stereogram of sub-pixel precision
Picture, for display end stereoscopic display.
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| CN201610904135.XA CN106454204A (en) | 2016-10-18 | 2016-10-18 | Naked eye stereo video conference system based on network depth camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109963135A (en) * | 2017-12-22 | 2019-07-02 | 宁波盈芯信息科技有限公司 | A kind of depth network camera device and method based on RGB-D |
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Application publication date: 20170222 |