CN102655585B - Video conference system and time delay testing method, device and system thereof - Google Patents
Video conference system and time delay testing method, device and system thereof Download PDFInfo
- Publication number
- CN102655585B CN102655585B CN201210111664.6A CN201210111664A CN102655585B CN 102655585 B CN102655585 B CN 102655585B CN 201210111664 A CN201210111664 A CN 201210111664A CN 102655585 B CN102655585 B CN 102655585B
- Authority
- CN
- China
- Prior art keywords
- conference terminal
- image
- video conference
- video
- time
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 67
- 230000002123 temporal effect Effects 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 46
- 238000012546 transfer Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000003111 delayed effect Effects 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention provides a video conference system and a time delay testing method, a time delay testing device and a time delay testing system. The time delay testing method of the video conference system comprises the following steps of: acquiring real-time time information displayed currently by a first video display device and time information in a first image received from a first video conference terminal, wherein the first image contains an image of the real-time time information displayed by the first display device and is returned to the first video display device for displaying after being transmitted by the first conference terminal, a second video conference terminal and the first video conference terminal; and generating time delay information according to the real-time time information and the time information in the first image. According to the video conference system and the time delay testing method, the time delay testing device and the time delay testing system provided by the invention, the test on the time delay of the video conference system is realized, the operation is simple and the implementation is easy.
Description
Technical field
The present invention relates to video conferencing technology, particularly relate to a kind of video conferencing system and time delay measuring method, device and system.
Background technology
Along with the develop rapidly of network technology, video conference has become the fastest multimedia communication mode of current development.Traditional commercial affairs, Executive Council are changed to video conference.Video conferencing system is by two or more different local individual or colony, by existing various electrical communications transmission medium, quiet, the multiple data such as dynamic image, voice, word, picture of personage are distributed on the computer of each user, make the user that disperses geographically can copolymerization one place, by the various ways such as figure, sound exchange of information, increase both sides to the understandability of content.
In prior art, video conferencing system generally includes multiple video conference terminal, cam device, video display devices and multipoint control unit, it is on-the-spot that video conference terminal distribution is arranged on each meeting, to pass through the image that cam device gathers meeting scene, video display devices shows the image that local image collects with other video conference terminals simultaneously.Ageing due to, meeting itself, when video conferencing system exist comparatively long time delay time, the effect of video conference can be had a strong impact on.Therefore, need to test the time delay of video conferencing system, to ensure carrying out smoothly of video conference.
Summary of the invention
The invention provides a kind of video conferencing system and time delay measuring method, device and system, to realize the test to video conferencing system time delay.
The present invention first aspect provides a kind of time delay measuring method of video conferencing system, comprising:
Obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, wherein, described first image is the image of the real-time time information including described first display unit display, and described first image returns described first video display devices display via after the first video conference terminal, described second video conference terminal and described first video conference terminal transmission;
Delay is generated according to the temporal information in described real-time time information and described first image.
Another aspect of the present invention provides a kind of time delay measuring method of video conferencing system, comprising:
First video display devices display includes the first image of real-time time information, and described first image is sent to the first video conference terminal;
Described first image is sent to the second video conference terminal by described first video conference terminal, and described first image is sent to described first video conference terminal by described second video conference terminal;
Described first image received from described second video conference terminal is sent to described first video display devices display by described first video conference terminal, generates Delay to make the delay testing device of video conferencing system according to the real-time time information of the current display of described first video display devices obtained simultaneously with from the temporal information the first image that described first video conference terminal receives.
Another aspect of the present invention provides a kind of delay testing device of video conferencing system, comprising:
Data obtaining module, for obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, wherein, described first image is the image of the real-time time information including described first display unit display, and described first image returns described first video display devices display via after the first video conference terminal, described second video conference terminal and described first video conference terminal transmission;
Computing module, for generating Delay according to the temporal information in described real-time time information and described first image.
Another aspect of the present invention provides a kind of video conferencing system, comprising: the first video display devices, the first video conference terminal and the second video conference terminal;
Described first video display devices includes the first image of real-time time information for showing, described first image is sent to described first video conference terminal, and is shown by described first image received from described first video conference terminal;
Described first video conference terminal is used for described first image received from described first video display devices to send to the second video conference terminal, and described first image received from described second video conference terminal is sent to described first video display devices, generate Delay to make the delay testing device of video conferencing system according to the real-time time information of the current display of described first video display devices obtained simultaneously with from the temporal information the first image that described first video conference terminal receives;
Described second video conference terminal is used for described first image received from described first video conference terminal to send to described first video conference terminal.
Another aspect of the present invention provides a kind of delay testing system of video conferencing system, comprising:
The delay testing device of video conferencing system provided by the invention, and video conferencing system provided by the invention.
As shown from the above technical solution, video conferencing system provided by the invention and time delay measuring method, device and system, obtain simultaneously first video display devices display real-time time information and from the temporal information the first image that the first video conference terminal receives, according in real-time time information and the first image temporal information generate Delay.Due to the image that the first image is the real-time time information including the first display unit display, and the first image is via returning the first video display devices display after the transmission of the first video conference terminal, the second video conference terminal and the first video conference terminal, namely the first image generating delayed data is through video conferencing system data transfer path one back and forth, temporal information in this first image and real-time time information are compared, the time delay of video conferencing system can be obtained, realize the test to video conferencing system time delay.And the time delay measuring method of the video conferencing system that the present embodiment provides can realize based on video conferencing system, and simple to operate, be easy to realize.
Accompanying drawing explanation
The time delay measuring method flow chart of a kind of video conferencing system that Fig. 1 provides for the embodiment of the present invention;
The time delay measuring method flow chart of the another kind of video conferencing system that Fig. 2 provides for the embodiment of the present invention;
The delay testing apparatus structure schematic diagram of the video conferencing system that Fig. 3 provides for the embodiment of the present invention;
A kind of videoconference system architecture schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The another kind of videoconference system architecture schematic diagram that Fig. 5 provides for the embodiment of the present invention.
Embodiment
The time delay measuring method flow chart of a kind of video conferencing system that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, the time delay measuring method of video conferencing system that the present embodiment provides specifically can be applied to the testing process of the Time Delay of Systems to video conferencing system.So that the video conferencing system of two side's video conferences can be realized, this video conferencing system specifically can comprise local video conference terminal, local video display unit and local cam device, and far-end video conference terminal, far-end video display unit and far-end cam device.Local video display unit and local cam device can be arranged on local video conference terminal, also can arrange separately, and far-end video display unit and far-end cam device can be arranged on far-end video conference terminal, also can arrange separately.Local cam device can adopt high-definition camera, gather the local image at local meeting scene, this local image is shown in local video display unit, local video conference terminal carries out coded treatment to local image, and the local image after coding is sent to far-end video conference terminal, local image after the coding received is carried out decoding process by far-end video conference terminal, and is shown in far-end video display unit by decoded local image.Meanwhile, the cam device of far-end gathers the distal view picture at far-end meeting scene, is shown by this distal view picture, then far-end video display unit shows local image and distal view picture simultaneously in far-end video display unit.Far-end video conference terminal carries out coded treatment to distal view picture, and the distal view picture after coding is sent to local video conference terminal, distal view picture after the coding received is carried out decoding process by local video conference terminal, and decoded distal view picture is shown in local video display unit, then local video display unit also shows local image and distal view picture simultaneously.Carrying out of two side's video conferences just can be realized by this video conferencing system.
The time delay measuring method of the video conferencing system that the present embodiment provides can utilize the time delay of the equipment of above-mentioned video conferencing system to this video conferencing system to detect, and can be performed by delay testing device.When detecting the time delay of this video conferencing system, this video conferencing system can be set to detecting pattern, realize time delay detection to coordinate delay test device.
The time delay measuring method of the video conferencing system that the present embodiment provides specifically comprises:
Step T10, obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, wherein, first image is the image of the real-time time information including the first display unit display, and the first image is via returning the first video display devices display after the transmission of the first video conference terminal, the second video conference terminal and the first video conference terminal;
Particularly, the first video display devices can be local video display unit, can in local video display unit running timer or counter, to show real-time time information.The precision of timer or counter can be Millisecond or more high accuracy, can need arrange according to the measuring accuracy of reality.What the first video display devices was shown include real-time time frame sends to the first video conference terminal as the first image, and the first video conference terminal can be local video conference terminal.
First image can be carried out coded treatment by the first video conference terminal, then the first image after coding is sent to the second video conference terminal, and the second video conference terminal can be far-end video conference terminal.This first image is sent to the first video conference terminal by the second video conference terminal again, then the first image that the first video conference terminal receives have passed through one of video conferencing system data transfer path back and forth.
This first image sends to the first video display devices to show by the first video conference terminal, owing to the first video display device also showing the real-time time information of timer or counter, now, first video display devices shows this real-time time information and this first image simultaneously, in this first image, also comprise a temporal information.Because this video conferencing system exists certain time delay, this time delay may be the processing delay of each equipment in video conferencing system, also may be network delay etc., then this real-time time information and there is certain difference from the temporal information the first image that the second video conference terminal returns.
Step T20, according in real-time time information and the first image temporal information generate Delay.
Delay testing device obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, particularly, testing apparatus can be wholely set with this first video display devices, if this real-time time information is produced by timer, then by the difference of the temporal information in real-time time information and the first image divided by 2, gained time value can be calculated and is Delay.If this real-time time information is produced by counter, this counter counts the corresponding regular hour at every turn, then can carry out calculating to obtain this Delay according to this corresponding relation.This testing apparatus also can for having the device of shooting unit, can by the display image of this this first video display devices of shooting unit photographs, the image that shooting obtains comprises the image of this first video display devices display, real-time time information in this image and the temporal information in the first image can be identified, then generate Delay according to the temporal information in real-time time information and the first image.
In the test process of the video conferencing system time delay of reality, when the time delay of testing this video conferencing system exceedes predetermined threshold value, the quality of video conference can be affected, then can split fix test.Data transfer path such as between the first video conference terminal and the second video conference terminal is multistage, then multiple test point can be set by this data transfer path, to arrange the second video conference terminal respectively, by the test to every segment data transmission path, the principal element causing video conferencing system time delay can be known.
The time delay measuring method of the video conferencing system that the present embodiment provides, obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, according in real-time time information and the first image temporal information generate Delay.Due to the image that the first image is the real-time time information including the first display unit display, and the first image is via returning the first video display devices display after the transmission of the first video conference terminal, the second video conference terminal and the first video conference terminal, namely the first image generating delayed data is through video conferencing system data transfer path one back and forth, temporal information in this first image and real-time time information are compared, the time delay of video conferencing system can be obtained, realize the test to video conferencing system time delay.And the time delay measuring method of the video conferencing system that the present embodiment provides can realize based on video conferencing system, simple to operate, be easy to realize.And in implementation procedure, the time delay of video conferencing system is determined by two temporal informations of the first video display devices display obtained more simultaneously, when avoiding by the timestamp nominal time, because timestamp generation device and timestamp obtain the inconsistent situation of the clock frequency of analytical equipment, the different judgment standard caused of sample frequency, and carrying out the nominal time by timestamp, implementation complexity is high.
In the present embodiment, step T10, obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, specifically can comprise the steps:
Step T101, gather the 3rd image of first image including real-time time information and receive from the first video conference terminal of the first video display devices display;
Step T102, the temporal information extracted in the real-time time information in the 3rd image and the first image in the 3rd image.
First can identify the temporal information in the real-time time information in the 3rd image and the first image in the 3rd image, and above-mentioned information is extracted.Image recognition can adopt the image-recognizing method of feature based matrix, also can adopt the image-recognizing method based on wavelet transformation, to realize two temporal informations in the 3rd image to identify, is not limited with the present embodiment.
In the present embodiment, step T20, generates Delay according to the temporal information in real-time time information and the first image, specifically can comprise the steps:
By the difference of the temporal information in real-time time information and the first image divided by 2, generate delayed data.
The time delay measuring method flow chart of the another kind of video conferencing system that Fig. 2 provides for the embodiment of the present invention.As shown in Figure 2, the time delay measuring method of the video conferencing system that the time delay measuring method of the video conferencing system that the present embodiment provides specifically can provide with above-described embodiment coordinates the delay testing realized video conferencing system, similar described in its specific implementation process and above-described embodiment, this repeats no more.
The time delay measuring method of the video conferencing system that the present embodiment provides specifically comprises:
Step S10, the first video display devices show the first image including real-time time information, and the first image is sent to the first video conference terminal;
First image is sent to the second video conference terminal by step S20, the first video conference terminal, and the first image is sent to the first video conference terminal by the second video conference terminal;
The first image received from the second video conference terminal is sent to the first video display devices display by step S30, the first video conference terminal, generates Delay to make delay testing device according to the real-time time information of the current display of the first video display devices obtained simultaneously with from the temporal information the first image that the first video conference terminal receives.
The time delay measuring method of the video conferencing system that the present embodiment provides, first video display devices display includes the first image of real-time time information, first image is sent to the first video conference terminal, first image is sent to the second video conference terminal by the first video conference terminal, first image is sent to the first video conference terminal by the second video conference terminal, and the first image received from the second video conference terminal is sent to the first video display devices display by the first video conference terminal.Due to the first image that the first video display devices shows real-time time information and receives from the first video conference terminal simultaneously, first image is through video conferencing system data transfer path one back and forth, can temporal information in this first image and real-time time information compare, to obtain the time delay of video conferencing system, realize the test to video conferencing system time delay.And the time delay measuring method of the video conferencing system that the present embodiment provides can realize based on video conferencing system, and simple to operate, be easy to realize.
In the video conferencing system application process of reality, when local video conference terminal in video conferencing system is different with the coding parameter of far-end video conference terminal, in this video conferencing system, can also multipoint control unit be set, this multipoint control unit can pass through micro-control unit (Micro Control Unit, be called for short MCU) realize, this multipoint control unit realizes the adaptation of local video conference terminal and far-end video conference terminal.When there is multiple video conference terminal in video conferencing system, this multipoint control unit can also realize the control to multiple video conference terminal.Then in the present embodiment, step S20, the first image is sent to the second video conference terminal by the first video conference terminal, and the first image is sent to the first video conference terminal by the second video conference terminal, specifically comprises the steps:
First image is sent to multipoint control unit by step S201, the first video conference terminal, and the first image is sent to the second video conference terminal by multipoint control unit;
First image is sent to multipoint control unit by step S202, the second video conference terminal, and the first image is sent to the first video conference terminal by multipoint control unit.
Particularly, multipoint control unit sends after the image received can being carried out corresponding adaptation processing again, and its processing procedure can adopt the adaptation method of prior art to realize, and this repeats no more.
In the present embodiment, the first image is sent to the first video conference terminal by the second video conference terminal in step S20, comprising:
First image is sent to the second video display devices display by step S203, the second video conference terminal, and cam device gathers second image including the first image of the second video display devices display, and the second image is sent to the second video conference terminal;
Second image is sent to the first video conference terminal by step S204, the second video conference terminal;
Correspondingly, step S30, the first image received from the second video conference terminal is sent to the first video display devices display by the first video conference terminal, comprising:
The second image received from the second video conference terminal is sent to the first video display devices display by the first video conference terminal.
Particularly, second video display devices is far-end video display unit, cam device is far-end cam device, second video display devices shows this first image, cam device gathers image shown by the second video display devices as the second image, includes the first image in this second image.Utilize far-end cam device and far-end video display unit to coordinate the passback realizing the first image, existing video conference flow process can be utilized, reduce further the complexity that test realizes.
Second image is sent to the first video display devices display by the first video conference terminal, and owing to including the first image in this second image, then this first image also can show on the first video display devices.
The delay testing apparatus structure schematic diagram of the video conferencing system that Fig. 3 provides for the embodiment of the present invention.As shown in Figure 3, the delay testing device of the video conferencing system that the present embodiment provides specifically can realize each step being applied to the time delay measuring method of the video conferencing system of delay testing device side that any embodiment of the present invention provides, and this repeats no more.
The delay testing device of the video conferencing system that the present embodiment provides specifically comprises data obtaining module 11 and computing module 12.Data obtaining module 11 for obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, wherein, first image is the image of the real-time time information including the first display unit display, and the first image is via returning the first video display devices display after the transmission of the first video conference terminal, the second video conference terminal and the first video conference terminal.Computing module 12 is for generating Delay according to the temporal information in real-time time information and the first image.
The delay testing device of the video conferencing system that the present embodiment provides, acquisition of information 11 module obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, computing module 12 according in real-time time information and the first image temporal information generate Delay.Due to the image that the first image is the real-time time information including the first display unit display, and the first image is via returning the first video display devices display after the transmission of the first video conference terminal, the second video conference terminal and the first video conference terminal, namely the first image generating delayed data is through video conferencing system data transfer path one back and forth, temporal information in this first image and real-time time information are compared, the time delay of video conferencing system can be obtained, realize the test to video conferencing system time delay.And the time delay measuring method of the video conferencing system that the present embodiment provides can realize based on video conferencing system, and simple to operate, be easy to realize.
In the present embodiment, data obtaining module 11 specifically can comprise shooting unit and information extraction unit.Shooting unit is for gathering the 3rd image of first image including real-time time information and receive from the first video conference terminal of the first video display devices display.Information extraction unit is for extracting the temporal information in the real-time time information in the 3rd image and the first image in the 3rd image.By taking the setting of unit, can obtain the image shown by the first video display devices easily, what reduce delay testing realizes difficulty.
In the present embodiment, computing module 12 specifically can also be used for by the difference of the temporal information in real-time time information and the first image divided by 2, generates delayed data.
A kind of videoconference system architecture schematic diagram that Fig. 4 provides for the embodiment of the present invention.As shown in Figure 4, the video conferencing system that the present embodiment provides specifically can realize each step being applied to the time delay measuring method of the video conferencing system of video conferencing system side that any embodiment of the present invention provides, and this repeats no more.The video conferencing system 81 that the present embodiment provides specifically comprises the first video display devices 21, first video conference terminal 22 and the second video conference terminal 23.First video display devices 21 includes the first image of real-time time information for showing, the first image is sent to the first video conference terminal 22, and is shown by the first image received from the first video conference terminal 22.First video conference terminal 22 is for sending to the second video conference terminal 23 by the first image received from the first video display devices 21, and the first image received from the second video conference terminal 23 is sent to the first video display devices 21, generate Delay to make delay testing device 82 according to the real-time time information of the current display of the first video display devices 21 obtained simultaneously with from the temporal information the first image that the first video conference terminal 22 receives.Second video conference terminal 23 is for sending to the first video conference terminal 22 by the first image received from the first video conference terminal 22.
Particularly, this video conferencing system 81 can comprise various modes, as mode of operation and detecting pattern.When video conferencing system is in mode of operation, normal video conference flow process can be realized.When video conferencing system 81 is in detecting pattern, can coordinate with delay testing device 82 delay testing realized this video conferencing system 81.
The video conferencing system 81 that the present embodiment provides, first video display devices 21 display includes the first image of real-time time information, first image is sent to the first video conference terminal 22, first image is sent to the second video conference terminal 23 by the first video conference terminal 22, first image sends to the first video conference terminal 22, first video conference terminal 22 to send to the first video display devices 21 to show the first image received from the second video conference terminal 23 by the second video conference terminal 23.Due to the first image that the first video display devices 21 shows real-time time information and receives from the first video conference terminal 22 simultaneously, first image is through video conferencing system data transfer path one back and forth, can temporal information in this first image and real-time time information compare, to obtain the time delay of video conferencing system, realize the test to video conferencing system time delay.And the time delay measuring method of the video conferencing system that the present embodiment provides can realize based on video conferencing system, and simple to operate, be easy to realize.
The another kind of videoconference system architecture schematic diagram that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, in the present embodiment, this video conferencing system 81 specifically can also comprise multipoint control unit 24, multipoint control unit 24 is arranged between the first video conference terminal 22 and the second video conference terminal 23, for the first image received from the first video conference terminal 22 is sent to the second video conference terminal 23, and send to the first video conference terminal 22 from the first image that the second video conference terminal 23 receives; Correspondingly, the first image received from multipoint control unit 24 also for the first image received from the first video display devices 21 is sent to multipoint control unit 24, and is sent to the first video display devices 21 by the first video conference terminal 22.Second video conference terminal 23 is also for sending to multipoint control unit 24 by the receive from multipoint control unit 24 first image.
In the present embodiment, this video conferencing system 81 specifically can also comprise the second video display devices 25 and cam device 26.Second video display devices 25 is for showing the first image received from the second video conference terminal 23.The second image including the first image that cam device 26 shows for gathering the second video display devices 25, sends to the second video conference terminal 23 by the second image.Correspondingly, the second image received from cam device 26 also for the first image received from the first video conference terminal 22 is sent to the second video display devices 25, and is sent to the first video conference terminal 22 by the second video conference terminal 23.First video conference terminal 22 is also for sending to the first video display devices 21 to show by the second image.Utilize cam device 26 and the second video display devices 25 to coordinate the passback realizing the first image, existing video conference flow process can be utilized, reduce further the complexity that test realizes.
The present embodiment provides a kind of delay testing system of video conferencing system, the delay testing system of this video conferencing system comprises the delay testing device of the video conferencing system that any embodiment of the present invention provides and the video conferencing system that any embodiment of the present invention provides.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a time delay measuring method for video conferencing system, is characterized in that, comprising:
Obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, wherein, described first image is the image of the real-time time information including described first display unit display, and described first image returns described first video display devices display via after the first video conference terminal, described second video conference terminal and described first video conference terminal transmission;
Delay is generated according to the temporal information in described real-time time information and described first image;
When the time delay of testing described video conferencing system exceedes predetermined threshold value, if the data transfer path between the first video conference terminal and the second video conference terminal is multistage, data transfer path arranges multiple test point, to arrange the second video conference terminal respectively, by the test to every segment data transmission path, to know the principal element causing video conferencing system time delay;
Obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, comprising:
Gather the 3rd image of described first image including described real-time time information and receive from described first video conference terminal of described first video display devices display;
Extract the temporal information in the described real-time time information in described 3rd image and the first image in described 3rd image.
2. the time delay measuring method of video conferencing system according to claim 1, is characterized in that, generates Delay, comprising according to the temporal information in described real-time time information and described first image:
By the difference of the temporal information in described real-time time information and described first image divided by 2, generate described delayed data.
3. a time delay measuring method for video conferencing system, is characterized in that, comprising:
First video display devices display includes the first image of real-time time information, and described first image is sent to the first video conference terminal;
Described first image is sent to the second video conference terminal by described first video conference terminal, and described first image is sent to described first video conference terminal by described second video conference terminal;
Described first image received from described second video conference terminal is sent to described first video display devices display by described first video conference terminal, generates Delay to make delay testing device according to the real-time time information of the current display of described first video display devices obtained simultaneously with from the temporal information the first image that described first video conference terminal receives;
When the time delay of testing described video conferencing system exceedes predetermined threshold value, if the data transfer path between the first video conference terminal and the second video conference terminal is multistage, data transfer path arranges multiple test point, to arrange the second video conference terminal respectively, by the test to every segment data transmission path, to know the principal element causing video conferencing system time delay;
Described first image is sent to described first video conference terminal by described second video conference terminal, comprising:
Described first image is sent to the second video display devices display by described second video conference terminal, cam device gathers second image including described first image of described second video display devices display, and described second image is sent to described second video conference terminal;
Described second image is sent to described first video conference terminal by described second video conference terminal;
Correspondingly, described first image received from described second video conference terminal is sent to described first video display devices display by described first video conference terminal, comprising:
Described second image received from described second video conference terminal is sent to described first video display devices display by described first video conference terminal.
4. the time delay measuring method of video conferencing system according to claim 3, it is characterized in that, described first image is sent to the second video conference terminal by described first video conference terminal, described first image is sent to described first video conference terminal by described second video conference terminal, comprising:
Described first image is sent to multipoint control unit by described first video conference terminal, and described first image is sent to described second video conference terminal by described multipoint control unit;
Described first image is sent to multipoint control unit by described second video conference terminal, and described first image is sent to described first video conference terminal by described multipoint control unit.
5. a delay testing device for video conferencing system, is characterized in that, comprising:
Data obtaining module, for obtain simultaneously the current display of the first video display devices real-time time information and from the temporal information the first image that the first video conference terminal receives, wherein, described first image is the image of the real-time time information including described first display unit display, and described first image returns described first video display devices display via after the first video conference terminal, described second video conference terminal and described first video conference terminal transmission;
Computing module, for generating Delay according to the temporal information in described real-time time information and described first image;
When the time delay of testing described video conferencing system exceedes predetermined threshold value, if the data transfer path between the first video conference terminal and the second video conference terminal is multistage, data transfer path arranges multiple test point, to arrange the second video conference terminal respectively, by the test to every segment data transmission path, to know the principal element causing video conferencing system time delay;
Described data obtaining module comprises:
Shooting unit, for gathering the 3rd image of described first image including described real-time time information and receive from described first video conference terminal of described first video display devices display;
Information extraction unit, for extracting the temporal information in the described real-time time information in described 3rd image and the first image in described 3rd image.
6. the delay testing device of video conferencing system according to claim 5, is characterized in that: described computing module also for by the difference of the temporal information in described real-time time information and described first image divided by 2, generate described delayed data.
7. a video conferencing system, is characterized in that, comprising: the first video display devices, the first video conference terminal and the second video conference terminal;
Described first video display devices includes the first image of real-time time information for showing, described first image is sent to described first video conference terminal, and is shown by described first image received from described first video conference terminal;
Described first video conference terminal is used for described first image received from described first video display devices to send to the second video conference terminal, and described first image received from described second video conference terminal is sent to described first video display devices, generate Delay to make delay testing device according to the real-time time information of the current display of described first video display devices obtained simultaneously with from the temporal information the first image that described first video conference terminal receives;
Described second video conference terminal is used for described first image received from described first video conference terminal to send to described first video conference terminal;
When the time delay of testing described video conferencing system exceedes predetermined threshold value, if the data transfer path between the first video conference terminal and the second video conference terminal is multistage, data transfer path arranges multiple test point, to arrange the second video conference terminal respectively, by the test to every segment data transmission path, to know the principal element causing video conferencing system time delay;
Also comprise the second video display devices and cam device;
Described second video display devices is used for described first image received from described second video conference terminal to show;
Described second image, for gathering second image including described first image of described second video display devices display, is sent to described second video conference terminal by described cam device; Correspondingly,
Described second image received from described cam device also for the first image received from described first video conference terminal is sent to described second video display devices, and is sent to described first video conference terminal by described second video conference terminal;
Described first video conference terminal is also for sending to described first video display devices display by described second image.
8. video conferencing system according to claim 7, it is characterized in that: also comprise multipoint control unit, described multipoint control unit is arranged between described first video conference terminal and described second video conference terminal, for described first image received from described first video conference terminal is sent to described second video conference terminal, and send to described first video conference terminal from described first image that described second video conference terminal receives; Correspondingly,
Described first image received from described multipoint control unit also for described first image received from described first video display devices is sent to described multipoint control unit, and is sent to described first video display devices by described first video conference terminal;
Described second video conference terminal is also for sending to described multipoint control unit by described first image received from described multipoint control unit.
9. a delay testing system for video conferencing system, is characterized in that, comprising:
The delay testing device of the video conferencing system as described in claim 5 or 6, and video conferencing system as claimed in claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210111664.6A CN102655585B (en) | 2012-04-16 | 2012-04-16 | Video conference system and time delay testing method, device and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210111664.6A CN102655585B (en) | 2012-04-16 | 2012-04-16 | Video conference system and time delay testing method, device and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102655585A CN102655585A (en) | 2012-09-05 |
| CN102655585B true CN102655585B (en) | 2015-07-15 |
Family
ID=46731105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210111664.6A Active CN102655585B (en) | 2012-04-16 | 2012-04-16 | Video conference system and time delay testing method, device and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102655585B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103813161A (en) * | 2012-11-12 | 2014-05-21 | 腾讯科技（深圳）有限公司 | Delayed testing method and device |
| CN104954727B (en) * | 2014-03-25 | 2018-08-07 | 南宁富桂精密工业有限公司 | Audio-visual synchronization control device and method |
| CN105791986B (en) * | 2014-12-23 | 2019-06-25 | 中国移动通信集团公司 | The detection method and device of video time delay |
| CN106210708B (en) * | 2015-04-30 | 2019-02-01 | 杭州海康威视数字技术股份有限公司 | A kind of detection method and system of picture delay |
| CN108234997B (en) * | 2017-12-12 | 2019-11-26 | 北京百度网讯科技有限公司 | Time-delay measuring method, equipment, system and the computer-readable medium of live video |
| CN110545411B (en) * | 2018-05-29 | 2021-06-15 | 中强光电股份有限公司 | Projector, projection system and detection method of transmission delay thereof |
| CN109286813B (en) * | 2018-11-14 | 2020-06-05 | 北京奇艺世纪科技有限公司 | Video communication quality detection method and device |
| CN109309831B (en) * | 2018-12-13 | 2020-05-08 | 苏州科达科技股份有限公司 | Method and device for testing video delay in video conference |
| CN109600571B (en) * | 2018-12-27 | 2021-01-08 | 北京真视通科技股份有限公司 | Multimedia resource transmission test system and multimedia resource transmission test method |
| CN110324566B (en) * | 2019-07-05 | 2020-12-25 | 苏州科达科技股份有限公司 | Method, device and equipment for testing sound delay in video conference |
| CN114554181A (en) * | 2020-11-27 | 2022-05-27 | 中国联合网络通信集团有限公司 | Time delay detection method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980405A (en) * | 2005-12-08 | 2007-06-13 | 中兴通讯股份有限公司 | System and method for detecting picture time delay |
| CN101170704A (en) * | 2007-11-22 | 2008-04-30 | 中兴通讯股份有限公司 | Labial synchronization testing method and device |
| CN101516017A (en) * | 2008-02-22 | 2009-08-26 | 中国移动通信集团公司 | Method, device and system for measuring video transmission delay of session service |
| CN202218235U (en) * | 2011-09-09 | 2012-05-09 | 华南理工大学 | Voice frequency end-to-end time delay measurement device with function of non-intrusive single-end acquisition |
-
2012
- 2012-04-16 CN CN201210111664.6A patent/CN102655585B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980405A (en) * | 2005-12-08 | 2007-06-13 | 中兴通讯股份有限公司 | System and method for detecting picture time delay |
| CN101170704A (en) * | 2007-11-22 | 2008-04-30 | 中兴通讯股份有限公司 | Labial synchronization testing method and device |
| CN101516017A (en) * | 2008-02-22 | 2009-08-26 | 中国移动通信集团公司 | Method, device and system for measuring video transmission delay of session service |
| CN202218235U (en) * | 2011-09-09 | 2012-05-09 | 华南理工大学 | Voice frequency end-to-end time delay measurement device with function of non-intrusive single-end acquisition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102655585A (en) | 2012-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102655585B (en) | Video conference system and time delay testing method, device and system thereof | |
| US10186297B2 (en) | Reference and non-reference video quality evaluation | |
| EP4099709A1 (en) | Data processing method and apparatus, device, and readable storage medium | |
| US20140192136A1 (en) | Video chatting method and system | |
| CN113038287B (en) | Method and device for realizing multi-user video live broadcast service and computer equipment | |
| US20230144483A1 (en) | Method for encoding video data, device, and storage medium | |
| CN112272327B (en) | Data processing method, device, storage medium and equipment | |
| CN105612743A (en) | Audio video playback synchronization for encoded media | |
| CN108521612B (en) | Video abstract generation method, device, server and storage medium | |
| CN110335590B (en) | Voice recognition test method, device and system | |
| CN109309831A (en) | The test method and device of video delay in video conference | |
| CN109714623A (en) | Image presentation method, device, electronic equipment and computer readable storage medium | |
| CN104639951A (en) | Video bitstream frame extraction process and device | |
| CN115396705A (en) | Screen projection operation verification method, platform and system | |
| CN109525852B (en) | Live video stream processing method, device and system and computer readable storage medium | |
| CN114051120A (en) | Video alarm method, device, storage medium and electronic equipment | |
| CN108881119B (en) | Method, device and system for video concentration | |
| CN113630620A (en) | Multimedia file playing system, related method, device and equipment | |
| CN107995538B (en) | Video annotation method and system | |
| CN107734278B (en) | Video playback method and related device | |
| CN116055762A (en) | Video synthesis method and device, electronic equipment and storage medium | |
| CN109600571B (en) | Multimedia resource transmission test system and multimedia resource transmission test method | |
| CN111918038A (en) | Method for improving signal-to-noise ratio of signal by multi-camera cross-correlation fusion based on Internet of things | |
| CN110602525B (en) | Method for binding and transmitting video analysis result and image frame | |
| CN111327943A (en) | Information management method, device, system, computer equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |