CN106789555A - Method of transmitting video data and device - Google Patents
Method of transmitting video data and device Download PDFInfo
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- CN106789555A CN106789555A CN201611062088.5A CN201611062088A CN106789555A CN 106789555 A CN106789555 A CN 106789555A CN 201611062088 A CN201611062088 A CN 201611062088A CN 106789555 A CN106789555 A CN 106789555A
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- video chat
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- chat data
- similarity
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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
- 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
- H04L51/21—Monitoring or handling of messages
- H04L51/214—Monitoring or handling of messages using selective forwarding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The invention discloses a kind of video data transmission device and method, the device includes：Image capture module, the Video chat data for gathering the first client；Data processing module, for the current video chat data of first client to be carried out into similarity comparison with last Video chat data, obtains the similarity of current video chat data and last Video chat data；Judge module, current video chat data and the similarity of last Video chat data for that will obtain are compared with the threshold value of setting；Sending module, if the threshold value for similarity more than setting, current video chat data is not sent to the second client；Otherwise, current video chat data is sent to the second client, display is played out by second client.The present invention improves the fluency of Video chat, and fabulous experience is brought to user.
Description
Technical field
The present invention relates to technical field of data transmission, more particularly to a kind of method of transmitting video data and device.
Background technology
At present, the popularization with mobile terminal and growing, existing voice call and the short message of radio network technique
Exchange way can not meet the demand of people, and video speech chat service is increasingly favored by people.In Video chat
When, view data is obtained by front camera as the intelligent terminal for sending terminal, while by audio inputs such as microphones
Equipment obtains the voice data synchronous with view data；Then by view data and Audio data compression synchronization process after, lead to
The mobile cellular network or wireless network for crossing transmitting terminal connection are sent to receiving terminal, realize real-time Video chat function.
However, when user walks, handheld mobile phone is often rocked, such video record needs to reacquire present image,
And be sent to receiving terminal and show.Even if in the case where mobile phone is fixed, small the rocking of character image is also required to reacquire
Present image.So, because video pictures need to regenerate, the video pictures that receiving terminal receives be may result in and is not connected
Pass through.
The content of the invention
It is a primary object of the present invention to propose a kind of method of transmitting video data and device, it is intended to improve Video chat
Picture fluency.
To achieve the above object, a kind of video data transmission device that the present invention is provided, described device includes：
Image capture module, the Video chat data for gathering the first client；
Data processing module, for by the current video chat data of first client and last Video chat number
According to similarity comparison is carried out, the similarity of the current video chat data and last Video chat data is obtained；
Judge module, for the current video chat data and the similarity of last Video chat data that will obtain
Threshold value with setting is compared；
Sending module, if for the similarity more than setting threshold value, not by current video chat data send to
Second client；Otherwise, current video chat data is sent to the second client, is played out by second client aobvious
Show.
Alternatively, the data processing module, is additionally operable to be obtained from the current video chat data of first client
Take view data；Described image data are converted into image vector data；Described image vector data is chatted with last video
The image vector data of day data carry out similarity comparison, obtain the current video chat data with last Video chat number
According to similarity.
Alternatively, the data processing module, is additionally operable to for frame of video picture to divide some regions, to two frame of video pictures
In corresponding region contrasted one by one, using default similarity algorithm be calculated current video chat data with it is last
The similarity of Video chat data.
Alternatively, the data processing module, it is right to be additionally operable to carry out each pixel value in two frame of video pictures one by one
Than being calculated the similarity of current video chat data and last Video chat data using default similarity algorithm.
Alternatively, the Video chat data include at least one frame of video picture.
Alternatively, the Video chat data are collected by terminal camera.
Alternatively, described device also includes：
Setting module, the threshold value of the similarity for setting Video chat data.
The embodiment of the present invention also proposes a kind of method of transmitting video data, and methods described includes：
Gather the Video chat data of the first client；
The current video chat data of first client is carried out into similarity comparison with last Video chat data,
Obtain the similarity of the current video chat data and last Video chat data；
The current video chat data that will be obtained and the similarity of last Video chat data and the threshold value of setting
It is compared；
If the similarity is not sent to the second client current video chat data more than the threshold value of setting；It is no
Then, current video chat data is sent to the second client, display is played out by second client.
Alternatively, the current video chat data by first client is carried out with last Video chat data
The step of similarity comparison, similarity for obtaining the current video chat data and last Video chat data, includes：
View data is obtained from the current video chat data of first client；
Described image data are converted into image vector data；
Described image vector data is carried out into similarity comparison with the image vector data of last Video chat data, is obtained
To the current video chat data and the similarity of last Video chat data.
Alternatively, the current video chat data by first client is carried out with last Video chat data
The step of similarity comparison, similarity for obtaining the current video chat data and last Video chat data, includes：
Frame of video picture is divided into some regions, corresponding region in two frame of video pictures is contrasted one by one, used
Default similarity algorithm is calculated the similarity of current video chat data and last Video chat data.
Alternatively, the current video chat data by first client is carried out with last Video chat data
The step of similarity comparison, similarity for obtaining the current video chat data and last Video chat data, includes：
Each pixel value in two frame of video pictures is contrasted one by one, is calculated using default similarity algorithm
The similarity of current video chat data and last Video chat data.
Alternatively, the Video chat data include at least one frame of video picture.
Alternatively, the Video chat data are collected by terminal camera.
Alternatively, also include before the step of Video chat data of the first client of the collection：
Set the threshold value of the similarity of Video chat data.
A kind of method of transmitting video data proposed by the present invention and device, are gathering the Video chat data of the first client
Afterwards, the current video chat data of the first client is carried out into similarity comparison with last Video chat data, obtains described
The similarity of current video chat data and last Video chat data；The current video chat data that will be obtained with it is upper
The similarity of primary video chat data is compared with the threshold value of setting；If the similarity is more than the threshold value of setting, no
Current video chat data is sent to the second client；Otherwise, current video chat data is sent to the second client, by
Second client plays out display, and the image for thus being got in terminal is differed in setting threshold values model with previous frame image
When enclosing interior, the video image is not sent further on to receiving terminal, so as to improve video transmission quality, improves the smoothness of Video chat
Property, bring fabulous experience to user.
Brief description of the drawings
Fig. 1 is a hardware architecture diagram for optional mobile terminal for realizing each embodiment of the invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the module diagram of video data transmission device first embodiment of the present invention；
Fig. 4 is the schematic flow sheet of method of transmitting video data first embodiment of the present invention；
Fig. 5 is the schematic flow sheet of method of transmitting video data second embodiment of the present invention；
Fig. 6 is the schematic flow sheet of method of transmitting video data 3rd embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Embodiment of the present invention scheme is related to the shared of terminal system resource, and the terminal being directed to can be PC etc. fixed eventually
End, it is also possible to refer to mobile terminal, the embodiment of the present invention is illustrated with mobile terminal, but the not limitation of structure paired terminal.
The mobile terminal of each embodiment of the invention is realized referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for being conducive to explanation of the invention, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for movement
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is a hardware architecture diagram for optional mobile terminal for realizing each embodiment of the invention.
Mobile terminal 1 00 can include wireless communication unit 110, user input unit 130, output unit 150, memory
160th, interface unit 170, controller 180 and power subsystem 190 etc..Fig. 1 shows the mobile terminal with various assemblies, but
It is that should be understood that, it is not required that implement all components for showing.More or less component can alternatively be implemented.Will be under
Face describes the element of mobile terminal in detail.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, wireless Internet mould
At least one of block 113.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is received.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of DMB (DMB)
The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast
Receiver module 111 can receive signal and broadcast by using various types of broadcast systems.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video
Broadcast-hand-held (DVB-H), forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service
Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memory 160 (or other types of storage medium).
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection due to being touched caused by resistance, pressure, electric capacity etc. change sensitive component), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon on display unit 151 in the form of layer, touch-screen can be formed.
Interface unit 170 is connected the interface that can pass through with mobile terminal 1 00 as at least one external device (ED).For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for reception and come from
The input (for example, data message, electric power etc.) of the external device (ED) and input that will be received is transferred in mobile terminal 1 00
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing by it by electricity
Power provides to the path of mobile terminal 1 00 from base or can serve as allowing the various command signals being input into from base to pass through it
It is transferred to the path of mobile terminal.Be can serve as recognizing that mobile terminal is from the various command signals or electric power of base input
The no signal being accurately fitted within base.
Output unit 150 is configured to provide output signal (for example, audio is believed with vision, audio and/or tactile manner
Number, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include display unit 151, audio output mould
Block 152 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, show video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when display unit 151 and touch pad in the form of layer it is superposed on one another to form touch-screen when, display unit
151 can serve as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to be watched from outside, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired implementation method, mobile terminal 1 00 can include two or more display units (or other display devices), for example, moving
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used to detect touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include loudspeaker, buzzer etc..
Memory 160 can store software program for the treatment and control operation performed by controller 180 etc.
Deng, or oneself data through exporting or will export can be temporarily stored (for example, telephone directory, message, static map
Picture, video etc.).And, memory 160 can be stored and shaken on the various modes exported when touching and being applied to touch-screen
The data of dynamic and audio signal.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
Communication, video calling etc. related control and treatment.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or can be structured as and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, the handwriting input that will be performed on the touchscreen or figure
Piece draws input and is identified as character or image.
Specifically, controller 180 can also include：
Image capture module 201, the Video chat data for gathering the first client；
Data processing module 202, for the current video chat data of first client to be chatted with last video
Day data carries out similarity comparison, obtains the similarity of the current video chat data and last Video chat data；
Judge module 203, for the phase of the current video chat data that will obtain and last Video chat data
It is compared with the threshold value of setting like degree；
Sending module 204, if the threshold value for the similarity more than setting, current video chat data is not sent
To the second client；Otherwise, current video chat data is sent to the second client, is played out by second client
Display.
Further, the data processing module 202, is additionally operable to the current video chat data from first client
Middle acquisition view data；Described image data are converted into image vector data；Described image vector data and last time are regarded
The image vector data of frequency chat data carry out similarity comparison, obtain the current video chat data and are chatted with last video
The similarity of day data.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various implementation methods described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implemented.Implement for hardware, implementation method described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
At least one in electronic unit is implemented, and in some cases, such implementation method can be implemented in controller 180.
For software implementation, the implementation method of such as process or function can with allow to perform the single of at least one function or operation
Software module is implemented.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, software code can be stored in memory 160 and performed by controller 180.
Mobile terminal 1 00 as shown in Figure 1 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operated.
The communication system that mobile terminal wherein of the invention can be operated is described referring now to Fig. 2.
Such communication system can use different air interface and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base station (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
If any one in the interface that back haul link can be known according to Ganji is constructed, the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system can include multiple BSC2750 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of sensing specific direction
Each subregion of line covering is radially away from BS270.Or, each subregion can be by two or more for diversity reception
Antenna is covered.Each BS270 may be constructed such that the multiple frequency distribution of support, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed intersects can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be claimed
It is multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to broadcsting transmitter (BT) 295 mobile terminal operated in system
100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 1 00 to receive the broadcast sent by BT295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, it is understood that be, it is possible to use any number of satellite obtains useful
Location information.Used as a typical operation of wireless communication system, BS270 is received from the reverse of various mobile terminal 1s 00
Link signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.It is every that certain base station 270 is received
Individual reverse link signal is processed in specific BS270.The data of acquisition are forwarded to the BSC275 of correlation.BSC is provided
Call resource allocation and the mobile management function of the coordination including the soft switching process between BS270.BSC275 will also be received
Data be routed to MSC280, its provide for PSTN290 formed interface extra route service.Similarly, PSTN290
Interface is formed with MSC280, MSC and BSC275 forms interface, and BSC275 correspondingly controls BS270 to believe with by forward link
Number it is sent to mobile terminal 1 00.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the invention is proposed.
Because in the prior art, mobile terminal when Video chat is carried out, rock or the small of shooting image rocks by terminal
The quality of terminal video will be influenceed so that the video pictures that receiving terminal is received are discontinuous.
Therefore, the present invention proposes a solution, the image got in terminal is differed in setting with previous frame image
When in threshold range, the video image is not sent further on to receiving terminal, so as to improve video transmission quality, improves Video chat
Fluency, fabulous experience is brought to user.
Specifically, as shown in figure 3, proposing video data transmission device first embodiment of the present invention, the device includes：Image
Acquisition module 201, data processing module 202, judge module 203 and sending module 204, wherein：
Image capture module 201, the Video chat data for gathering the first client；
Data processing module 202, for the current video chat data of first client to be chatted with last video
Day data carries out similarity comparison, obtains the similarity of the current video chat data and last Video chat data；
Judge module 203, for the phase of the current video chat data that will obtain and last Video chat data
It is compared with the threshold value of setting like degree；
Sending module 204, if the threshold value for the similarity more than setting, current video chat data is not sent
To the second client；Otherwise, current video chat data is sent to the second client, is played out by second client
Display.
Further, the data processing module 202, is additionally operable to the current video chat data from first client
Middle acquisition view data；Described image data are converted into image vector data；Described image vector data and last time are regarded
The image vector data of frequency chat data carry out similarity comparison, obtain the current video chat data and are chatted with last video
The similarity of day data.
Specifically, this embodiment scheme is related to the transmitting terminal of video data transmission and receiving terminal, wherein, transmitting terminal and reception
Video chat software is mounted on end, there is provided have corresponding user interface, the Video chat software on transmitting terminal is referred to as first
Client, the Video chat software on receiving terminal is referred to as the second client, and used as two clients of video communication, its function can be with
Exchange, the present embodiment sends Video chat data with the first client, the second client receives Video chat data and illustrated.
The present embodiment video data transmission device can be carried on transmitting terminal.
Wherein, the Video chat data can be collected by terminal camera.
In the present embodiment, by the Video chat data of the client of terminal camera Real-time Collection first, wherein, video
Chat data can include view data and voice data, and view data includes at least one frame of video picture.
After the Video chat data for collecting the first client, by the current video chat data of first client
Similarity comparison is carried out with last Video chat data, the current video chat data is obtained with last Video chat number
According to similarity.
Will the first client collection current video frame picture carry out similarity comparison with upper frame of video picture, right
Than when, as a kind of implementation method, frame of video picture can be divided some regions, to corresponding area in two frame of video pictures
Domain is contrasted one by one, and current video chat data is calculated with last Video chat number using default similarity algorithm
According to similarity；As another embodiment, it is also possible to which each pixel value in frame of video picture is contrasted, and judges two
The similarity of frame of video picture.
As another embodiment, both similarities can also be calculated by the way of image vector data.
Specifically, first, view data is obtained from the current video chat data of first client；Then, will
Described image data are converted to image vector data；Described image vector data is sweared with the image of last Video chat data
Amount data carry out similarity comparison, obtain the similarity of the current video chat data and last Video chat data.
Wherein, the view data for being obtained from the current video chat data of the first client is usually bitmap images, i.e.,
Dot matrix image, is made up of pixel, and compared to bitmap images, a series of point that vector image is then connected by lines is constituted.According to
The characteristic of bitmap images and vector image, bitmap images amplify, fogging image can be caused, thicken, and vector image without
By zoom all without deformation.Vector image is more conducive to the contrast of feature between different images, so as to obtain two images
Similarity.
Specifically, for bitmap images (Bitmap), also known as dot matrix image or drawing image are by being referred to as pixel (figure
Piece element) a single point composition.These points can carry out different arrangement and dyeing to constitute pattern.When bitmap is amplified,
Can see that to rely and constitute the countless single square of whole image.The effect for expanding bitmap size is to increase single pixel, so that
Lines and shape is set to seem uneven.
The file type of bitmap images is a lot, such as * .bmp, * .pcx, * .gif, * .jpg, the * of * .GIF, photoshop
.pcd, * .cpt of the * .psd of kodak photo CD, corel photo paint etc..
For polar plot (vector), the image or Drawing image of vector image, also referred to as object-oriented are mathematically fixed
Justice is a series of points connected by line.As the softwares such as Adobe Illustrator, CorelDraw, CAD are to be with vector graphics
What basis was created.Graphic element in vector file is referred to as object.Each object is an entity having a style of one's own, it
With attributes such as color, shape, profile, size and screen positions.Because each object is an entity having a style of one's own, just
Its attribute can be repeatedly moved and change while its original definition and flexibility is maintained, without in influence legend
Other objects.Drawing based on vector is unrelated with resolution ratio, it means that they can be shown to output by highest resolution
In equipment, all without influence definition.Therefore, vector graphics is word (especially small character) and bargraphs (such as logo)
Optimal selection.
There are some figures (such as engineering drawing, simple, straight-forward style of writing figure, cartoon), they are mainly made up of lines and color lump, these
Figure can be decomposed into the single graphic element such as single lines, word, circle, rectangle, polygon.Again with an algebraic expression come
Express each element for being decomposed out.For example：One circle can be expressed as the center of circle at (x1, y1), and radius is the figure of r；One
Individual rectangle can be represented by the quadrangle of the coordinate (x2, y2) of the coordinate (x1, y1) and the lower right corner in the specified upper left corner；Lines
Can be represented with the line of a coordinate for end points (x1, y1) and the coordinate (x2, y2) of another end points.Certainly can also be
Every kind of element adds some attributes, and such as width of frame line, frame line is solid line or dotted line, central filler what color
Deng.Then using the algebraic expression of these elements and their attribute as file save, be generated as so-called polar plot (also cry to
Spirogram).
Vector graphics format has a lot, such as * .AI, the * .EPS and the * of SVG, AutoCAD of Adobe Illustrator
.dwg with * .cdr, windows standard graphic element file * .wmf and enhanced metafile the * .emf of dxf, Corel DRAW etc.
Deng.When needing to open this graphic file, program calculates the figure of this element according to the algebraic expression of each element, and shows
Show to come.
The details in figure can infinitely be amplified due to polar plot, and without worrying that distortion and color lump can be caused.Therefore, more
Difference between good comparing different images.
When bitmap images are converted into vector image, various methods can be used, such as using CorelDRAW softwares.
In the present embodiment, current video chat data is obtained using image vector data with last Video chat number
According to similarity, improve characteristics of image contrast accuracy, while the complexity of calculating can also be reduced.
Compared to existing technology, embodiment of the present invention scheme, in Video chat, gets in real time for the first client
Chat image makes a decision with a preceding image, when there are minor variations for chat image, the video this not collected
Chat data is sent to the second client, can so improve the fluency of Video chat, improves Consumer's Experience.
Wherein, when similarity is calculated, corresponding similarity algorithm, such as the image based on Histogram distance can be used
Similarity Measure algorithm, SIFT algorithms, SIM (Structural SIMilarity, structural similarity) algorithm etc., the present embodiment
This is not especially limited.
It is described current by what is obtained after similarity of the current video chat data with upper once Video chat data is obtained
Video chat data are compared with the similarity of last Video chat data and the threshold value of setting.
In the present embodiment, similarity threshold is preset with, wherein, the threshold value of setting can be set according to actual conditions
It is fixed.Therefore, further, the present embodiment device can also include：Setting module, the similarity for setting Video chat data
Threshold value.
If threshold value of the similarity more than setting, show current video chat data be probably because terminal is rocked or
The recording again to video data that picture weave is caused, in such cases, to avoid the discontinuous of receiving terminal video pictures, then
Current video chat data is not sent to the second client and shown.
If current video chat data is less than or equal to the threshold value of setting with the similarity of last Video chat data,
Show that current video picture content is differed farther out with previous frame video pictures content, then current video chat data can be sent
To the second client, display is played out by the second client, to ensure the continuity of video pictures.
The present embodiment passes through such scheme, after the Video chat data for gathering the first client, by the first client
Current video chat data carries out similarity comparison with last Video chat data, obtain the current video chat data with
The similarity of last Video chat data；The current video chat data that will be obtained and last Video chat data
Similarity is compared with the threshold value of setting；If the similarity is more than the threshold value of setting, not by current video chat data
Send to the second client；Otherwise, current video chat data is sent to the second client, is carried out by second client
Display is played, is thus differed with previous frame image when setting in threshold range in the image that terminal gets, the video image
It is not sent further on to receiving terminal, so as to improve video transmission quality, improves the fluency of Video chat, brings fabulous to user
Experience.
Accordingly, method of transmitting video data embodiment of the present invention is proposed.
As shown in figure 4, proposing the first embodiment of method of transmitting video data of the present invention, the method includes：
Step S101, gathers the Video chat data of the first client；
The present embodiment method of transmitting video data is related to the transmitting terminal of video data transmission and receiving terminal, wherein, transmitting terminal
With Video chat software is mounted on receiving terminal, there is provided have corresponding user interface, the Video chat software on transmitting terminal claims
It is the first client, the Video chat software on receiving terminal is referred to as the second client, as two clients of video communication, its work(
Be able to can exchange, the present embodiment sends Video chat data with the first client, the second client receives Video chat data and enters
Row citing.
Wherein, the Video chat data can be collected by terminal camera.
In the present embodiment, by the Video chat data of the client of terminal camera Real-time Collection first, wherein, video
Chat data can include view data and voice data, and view data includes at least one frame of video picture.
Step S102, phase is carried out by the current video chat data of first client with last Video chat data
Contrasted like degree, obtain the similarity of the current video chat data and last Video chat data；
After the Video chat data for collecting the first client, by the current video chat data of first client
Similarity comparison is carried out with last Video chat data, the current video chat data is obtained with last Video chat number
According to similarity.
Will the first client collection current video frame picture carry out similarity comparison with upper frame of video picture, right
Than when, as a kind of implementation method, frame of video picture can be divided some regions, to corresponding region in video pictures one by one
Contrasted；As another embodiment, it is also possible to which each pixel value in frame of video picture is contrasted, judge that two regard
The similarity of frequency frame picture.
As another embodiment, both similarities can also be calculated by the way of image vector data.
Specifically, first, view data is obtained from the current video chat data of first client；Then, will
Described image data are converted to image vector data；Described image vector data is sweared with the image of last Video chat data
Amount data carry out similarity comparison, obtain the similarity of the current video chat data and last Video chat data.
Wherein, when similarity is calculated, corresponding similarity algorithm, the present embodiment can be used not to make specific limit to this
It is fixed.
Step S103, the similarity of the current video chat data that will be obtained and last Video chat data and sets
Fixed threshold value is compared；If the similarity is more than the threshold value of setting, into step S104；Otherwise, into step S105,
Step S104, current video chat data is not sent to the second client；
Step S105, current video chat data is sent to the second client, is played out by second client
Display.
It is described current by what is obtained after similarity of the current video chat data with upper once Video chat data is obtained
Video chat data are compared with the similarity of last Video chat data and the threshold value of setting.
In the present embodiment, similarity threshold is preset with, wherein, the threshold value of setting can be set according to actual conditions
It is fixed.
If threshold value of the similarity more than setting, show current video chat data be probably because terminal is rocked or
The recording again to video data that picture weave is caused, in such cases, to avoid the discontinuous of receiving terminal video pictures, then
Current video chat data is not sent to the second client and shown.
If current video chat data is less than or equal to the threshold value of setting with the similarity of last Video chat data,
Show that current video picture content is differed farther out with previous frame video pictures content, then current video chat data can be sent
To the second client, display is played out by the second client, to ensure the continuity of video pictures.
The present embodiment passes through such scheme, after the Video chat data for gathering the first client, by the first client
Current video chat data carries out similarity comparison with last Video chat data, obtain the current video chat data with
The similarity of last Video chat data；The current video chat data that will be obtained and last Video chat data
Similarity is compared with the threshold value of setting；If the similarity is more than the threshold value of setting, not by current video chat data
Send to the second client；Otherwise, current video chat data is sent to the second client, is carried out by second client
Display is played, is thus differed with previous frame image when setting in threshold range in the image that terminal gets, the video image
It is not sent further on to receiving terminal, so as to improve video transmission quality, improves the fluency of Video chat, brings fabulous to user
Experience.
Compared to existing technology, embodiment of the present invention scheme, in Video chat, gets in real time for the first client
Chat image makes a decision with a preceding image, when there are minor variations for chat image, the video this not collected
Chat data is sent to the second client, can so improve the fluency of Video chat, improves Consumer's Experience.
As shown in figure 5, proposing the second embodiment of method of transmitting video data of the present invention, the present embodiment method is based on above-mentioned
First embodiment shown in Fig. 4, in the present embodiment, above-mentioned steps S102 chats the current video of first client
Data carry out similarity comparison with last Video chat data, obtain the current video chat data and are chatted with last video
The similarity of day data can include：
Step S1021, view data is obtained from the current video chat data of first client；
Described image data are converted to image vector data by step S1022；
Wherein, the view data for being obtained from the current video chat data of the first client is usually bitmap images, i.e.,
Dot matrix image, is made up of pixel, and compared to bitmap images, a series of point that vector image is then connected by lines is constituted.According to
The characteristic of bitmap images and vector image, bitmap images amplify, fogging image can be caused, thicken, and vector image without
By zoom all without deformation.Vector image is more conducive to the contrast of feature between different images, so as to obtain two images
Similarity.
Specifically, for bitmap images (Bitmap), also known as dot matrix image or drawing image are by being referred to as pixel (figure
Piece element) a single point composition.These points can carry out different arrangement and dyeing to constitute pattern.When bitmap is amplified,
Can see that to rely and constitute the countless single square of whole image.The effect for expanding bitmap size is to increase single pixel, so that
Lines and shape is set to seem uneven.
The file type of bitmap images is a lot, such as * .bmp, * .pcx, * .gif, * .jpg, the * of * .GIF, photoshop
.pcd, * .cpt of the * .psd of kodak photo CD, corel photo paint etc..
For polar plot (vector), the image or Drawing image of vector image, also referred to as object-oriented are mathematically fixed
Justice is a series of points connected by line.As the softwares such as Adobe Illustrator, CorelDraw, CAD are to be with vector graphics
What basis was created.Graphic element in vector file is referred to as object.Each object is an entity having a style of one's own, it
With attributes such as color, shape, profile, size and screen positions.Because each object is an entity having a style of one's own, just
Its attribute can be repeatedly moved and change while its original definition and flexibility is maintained, without in influence legend
Other objects.Drawing based on vector is unrelated with resolution ratio, it means that they can be shown to output by highest resolution
In equipment, all without influence definition.Therefore, vector graphics is word (especially small character) and bargraphs (such as logo)
Optimal selection.
There are some figures (such as engineering drawing, simple, straight-forward style of writing figure, cartoon), they are mainly made up of lines and color lump, these
Figure can be decomposed into the single graphic element such as single lines, word, circle, rectangle, polygon.Again with an algebraic expression come
Express each element for being decomposed out.For example：One circle can be expressed as the center of circle at (x1, y1), and radius is the figure of r；One
Individual rectangle can be represented by the quadrangle of the coordinate (x2, y2) of the coordinate (x1, y1) and the lower right corner in the specified upper left corner；Lines
Can be represented with the line of a coordinate for end points (x1, y1) and the coordinate (x2, y2) of another end points.Certainly can also be
Every kind of element adds some attributes, and such as width of frame line, frame line is solid line or dotted line, central filler what color
Deng.Then using the algebraic expression of these elements and their attribute as file save, be generated as so-called polar plot (also cry to
Spirogram).
Vector graphics format has a lot, such as * .AI, the * .EPS and the * of SVG, AutoCAD of Adobe Illustrator
.dwg with * .cdr, windows standard graphic element file * .wmf and enhanced metafile the * .emf of dxf, Corel DRAW etc.
Deng.When needing to open this graphic file, program calculates the figure of this element according to the algebraic expression of each element, and shows
Show to come.
The details in figure can infinitely be amplified due to polar plot, and without worrying that distortion and color lump can be caused.Therefore, more
Difference between good comparing different images.
When bitmap images are converted into vector image, various methods can be used, such as using CorelDRAW softwares.
Step S1023, phase is carried out by described image vector data with the image vector data of last Video chat data
Contrasted like degree, obtain the similarity of the current video chat data and last Video chat data.
In the present embodiment, current video chat data is obtained using image vector data with last Video chat number
According to similarity, improve characteristics of image contrast accuracy, while the complexity of calculating can also be reduced.
Compared to existing technology, embodiment of the present invention scheme, in Video chat, gets in real time for the first client
Chat image makes a decision with a preceding image, when there are minor variations for chat image, the video this not collected
Chat data is sent to the second client, can so improve the fluency of Video chat, improves Consumer's Experience.
As Fig. 6 shows, the 3rd embodiment of method of transmitting video data of the present invention is proposed, the present embodiment method is based on above-mentioned figure
First embodiment shown in 4, in the present embodiment, above-mentioned steps S102, by the current video chat number of first client
Similarity comparison is carried out according to last Video chat data, the current video chat data is obtained with last Video chat
The similarity of data can include：
The frame of video picture of step S1024, the frame of video picture that current video is chatted and last Video chat is drawn
Divide some regions；
Step S1025, contrasts, using default similarity algorithm one by one to corresponding region in two frame of video pictures
It is calculated the similarity of current video chat data and last Video chat data.
Specifically, if the frame of video picture of the frame of video picture that current video is chatted and last Video chat is divided
Dry region, contrasts, using default similarity algorithm, such as based on straight one by one to corresponding region in two frame of video pictures
The image similarity computational algorithm of square map distance, SIFT algorithms, SIM (Structural SIMilarity, structural similarity) are calculated
Method etc., is calculated the similarity of current video chat data and last Video chat data.
Further, it is also possible to each pixel value in two frame of video pictures is contrasted one by one, using default similarity
Algorithm is calculated the similarity of current video chat data and last Video chat data.
Compared to existing technology, embodiment of the present invention scheme, in Video chat, gets in real time for the first client
Chat image makes a decision with a preceding image, when there are minor variations for chat image, the video this not collected
Chat data is sent to the second client, can so improve the fluency of Video chat, improves Consumer's Experience.
It should be noted that herein, term " including ", "comprising" or its any other variant be intended to non-row
His property is included, so that process, method, article or device including a series of key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute are intrinsic
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably implementation method.Based on such understanding, technical scheme is substantially done to prior art in other words
The part for going out contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used to so that a station terminal equipment (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of video data transmission device, it is characterised in that described device includes：
Image capture module, the Video chat data for gathering the first client；
Data processing module, for the current video chat data of first client to be entered with last Video chat data
Row similarity comparison, obtains the similarity of the current video chat data and last Video chat data；
Judge module, for the current video chat data that will obtain and last Video chat data similarity with set
Fixed threshold value is compared；
Sending module, if the threshold value for the similarity more than setting, current video chat data is not sent to second
Client；Otherwise, current video chat data is sent to the second client, display is played out by second client.
2. device according to claim 1, it is characterised in that
The data processing module, is additionally operable to obtain view data from the current video chat data of first client；
Described image data are converted into image vector data；By described image vector data and the image of last Video chat data
Vector data carries out similarity comparison, obtains the similarity of the current video chat data and last Video chat data.
3. device according to claim 1, it is characterised in that
The data processing module, is additionally operable to for frame of video picture to divide some regions, to corresponding area in two frame of video pictures
Domain is contrasted one by one, and current video chat data is calculated with last Video chat number using default similarity algorithm
According to similarity.
4. device according to claim 1, it is characterised in that
The data processing module, is additionally operable to contrast each pixel value in two frame of video pictures one by one, using default
Similarity algorithm be calculated the similarity of current video chat data and last Video chat data.
5. the device according to any one of claim 1-4, it is characterised in that described device also includes：
Setting module, the threshold value of the similarity for setting Video chat data.
6. a kind of method of transmitting video data, it is characterised in that methods described includes：
Gather the Video chat data of the first client；
The current video chat data of first client is carried out into similarity comparison with last Video chat data, is obtained
The similarity of the current video chat data and last Video chat data；
The current video chat data that will be obtained is carried out with the similarity of last Video chat data and the threshold value of setting
Compare；
If the similarity is not sent to the second client current video chat data more than the threshold value of setting；Otherwise, will
Current video chat data is sent to the second client, and display is played out by second client.
7. method according to claim 6, it is characterised in that the current video by first client is chatted number
Similarity comparison is carried out according to last Video chat data, the current video chat data is obtained with last Video chat
The step of similarity of data, includes：
View data is obtained from the current video chat data of first client；
Described image data are converted into image vector data；
Described image vector data is carried out into similarity comparison with the image vector data of last Video chat data, institute is obtained
State the similarity of current video chat data and last Video chat data.
8. method according to claim 6, it is characterised in that the current video by first client is chatted number
Similarity comparison is carried out according to last Video chat data, the current video chat data is obtained with last Video chat
The step of similarity of data, includes：
Frame of video picture is divided into some regions, corresponding region in two frame of video pictures is contrasted one by one, using default
Similarity algorithm be calculated the similarity of current video chat data and last Video chat data.
9. method according to claim 6, it is characterised in that the current video by first client is chatted number
Similarity comparison is carried out according to last Video chat data, the current video chat data is obtained with last Video chat
The step of similarity of data, includes：
Each pixel value in two frame of video pictures is contrasted one by one, is calculated currently using default similarity algorithm
The similarity of Video chat data and last Video chat data.
10. the method according to any one of claim 6-9, it is characterised in that the video of the client of the collection first
Also include before the step of chat data：
Set the threshold value of the similarity of Video chat data.
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