CN102833519A - Method, device and system for adaption processing on video image - Google Patents
Method, device and system for adaption processing on video image Download PDFInfo
- Publication number
- CN102833519A CN102833519A CN2011101591895A CN201110159189A CN102833519A CN 102833519 A CN102833519 A CN 102833519A CN 2011101591895 A CN2011101591895 A CN 2011101591895A CN 201110159189 A CN201110159189 A CN 201110159189A CN 102833519 A CN102833519 A CN 102833519A
- Authority
- CN
- China
- Prior art keywords
- place
- display device
- meeting
- video
- parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 title claims abstract description 31
- 238000012937 correction Methods 0.000 claims description 154
- 230000006978 adaptation Effects 0.000 claims description 31
- 238000003672 processing method Methods 0.000 claims description 20
- 238000009432 framing Methods 0.000 claims description 13
- 239000000284 extract Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 29
- 239000011159 matrix material Substances 0.000 description 23
- 230000008569 process Effects 0.000 description 18
- 239000002699 waste material Substances 0.000 description 8
- 230000001915 proofreading effect Effects 0.000 description 7
- 238000012797 qualification Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/67—Circuits for processing colour signals for matrixing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a method, a device and a system for adaption processing on a video image, and relate to the field of image processing. According to the invention, the characteristic parameters of display equipment are utilized to correct the video image, so that manpower is saved, and different far-end display equipment is enabled to show better display effects. The embodiment of the invention has the scheme as follows: receiving video code streams to be transmitted to a first meeting place and to be displayed by the display equipment; acquiring the characteristics parameters of the display equipment in the first meeting place; then processing the video code streams according to the characteristics parameters of the display equipment in the first meeting place; and finally sending the processed video code streams to the first meeting place. The scheme provided by the embodiment of the invention is suitable for the adaption processing on the video image of the display equipment.
Description
Technical field
The present invention relates to image processing field, relate in particular to adaptation processing method, equipment and the system of video image.
Background technology
Distal displayed equipment in the video conferencing system generally includes liquid crystal display screen display, plasma display, OLED (Organic Light-Emitting Diode; Organic Light Emitting Diode) display, based on the plane curtain and the on-plane surface curtain (cambered surface curtain or folding face curtain) of projection pattern; The code capacity of said distal displayed equipment, specific coding agreement difference are bigger; Existing multimedia transmission control protocol is like the H.245 agreement in the protocol suite H.323, SDP (the Session Description Protocol in SIP (Session Initiation Protocol, the conversation initialized protocol) protocol suite; Conversation initialized protocol) agreement; Can accomplish between the distal displayed equipment or distal displayed equipment and media control server (as: MCU (Multipoint Control Unit, multipoint control unit)) between capability negotiation, the handling capacity negotiations process can be understood the other side's disposal ability; And then the ability parameter can confirm that both sides communicate the time; Wherein, ability parameter includes but not limited to: the coding and decoding agreement that communicating pair adopted, the transmission bandwidth of support etc.
Along with the continuous development of Telepresence, the application scenarios of a meeting of common participation of dissimilar video conferencing systems has appearred, and under this application scenarios, the display capabilities of display device is diversified.In order to demonstrate complete, smooth picture effect, need to do concrete adjusting, for example to the geometric alignment of multi-display splicing system and color correction etc. to distal displayed equipment particularly.
Yet; Adjusting to different display devices in the prior art normally relies on the judgement of human eye to accomplish by the engineering staff in each meeting-place; Can the more manpower of waste, also can't guarantee that the picture effect that the display device of video conference terminal demonstrates is always better simultaneously.
Summary of the invention
Embodiments of the invention provide a kind of adaptation processing method, equipment and system of video image; Can adopt the characterisitic parameter of display device that video image is carried out treatment for correcting, can save manpower and can make the display device of different video conference terminals present picture effect preferably.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of adaptation processing method of video image; Be applied in the video conferencing system; Said video conferencing system comprises a videoconference server, and at least two video conference terminals, wherein; Described at least two video conference terminals lay respectively in two meeting-place at least, and said method comprises:
Said videoconference server receives the video code flow that the display device of giving first meeting-place to be transmitted shows;
Said videoconference server is obtained the characterisitic parameter of the display device in said first meeting-place, and the characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in said first meeting-place at first video conference terminal place;
Said videoconference server is handled said video code flow according to the characterisitic parameter of the display device in said first meeting-place, and the video code flow after will handling sends to said first meeting-place.
A kind of adaptation processing equipment of video image, said equipment are applied to comprise in the video conferencing system:
Receiving element is used to receive the video code flow that the display device of giving first meeting-place to be transmitted shows;
Acquiring unit is used to obtain the characterisitic parameter of the display device in said first meeting-place, and the characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in said first meeting-place at first video conference terminal place;
Performance element be used for according to the characterisitic parameter of the display device in said first meeting-place said video code flow being handled, and the video code flow after will handling sends to said first meeting-place.
A kind of video conferencing system comprises: at least two video conference terminals, a videoconference server, and wherein, described at least two video conference terminals lay respectively in two meeting-place at least, and said system comprises:
Said videoconference server receives the video code flow that the display device of giving first meeting-place to be transmitted shows; And obtain the characterisitic parameter of the display device in said first meeting-place; The characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in meeting-place, first video conference terminal place; Said videoconference server is handled said video code flow according to the characterisitic parameter of the display device in said first meeting-place; And the video code flow after will handling, send to said first meeting-place.
The adaptation processing method of a kind of video image that the embodiment of the invention provides, equipment and system; Through receiving the video code flow that the display device of giving first meeting-place to be transmitted shows; And obtain the display device characterisitic parameter in first meeting-place; According to the characterisitic parameter of the display device in first meeting-place video code flow is handled then, and the video code flow after will handling sends to first meeting-place.Normally in each meeting-place, rely on the judgement of human eye to accomplish with the adjusting of different display devices in the prior art by the engineering staff; Can waste more manpower; The display device that also can't guarantee simultaneously video conference terminal demonstrates preferably picture effect and compares; The scheme that provides in the embodiment of the invention is carried out treatment for correcting through adopting the display device characterisitic parameter to video image, not only saves the display device that manpower can also make different video conference terminals and presents picture effect preferably.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
The composition Organization Chart of first kind of video conferencing system that Fig. 1 provides for the embodiment of the invention;
The composition Organization Chart of second kind of video conferencing system that Fig. 2 provides for the embodiment of the invention;
The flow chart of the adaptation processing method of a kind of video image that Fig. 3 provides for the embodiment of the invention 1;
The block diagram of the adaptation processing equipment of a kind of video image that Fig. 4 provides for the embodiment of the invention 1;
The flow chart of the adaptation processing method of a kind of video image that Fig. 5 provides for the embodiment of the invention 2;
Fig. 6 carries out the tint correction curve chart that integral color adopted that interpolation is adjusted image for adopting tint correction curve interpolation number of spots in the embodiment of the invention 2 to the pixel of image;
The block diagram of the adaptation processing equipment of a kind of video image that Fig. 7 provides for the embodiment of the invention 2;
The sketch map of a kind of video conferencing system that Fig. 8 provides for the embodiment of the invention 3.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Different display devices has different display characteristics, when an image shows on different display devices, can cause images displayed can not reach good display effect.The adaptive finger of image is adjusted image according to the characteristic of different display devices accordingly, makes adjusted image on the display device of different size and length-width ratio, show with effect preferably.
Before introducing embodiments of the invention, describe to the applied videoconference system architecture of the present invention earlier:
Wherein, video conferencing system shown in Figure 1 is by media control server (is that example describes with MCU), and N (wherein; N >=2) individual conference terminal constitutes; Wherein, the control of MCU realization Media Stream and forwarding (comprising: the audio mixing of conference audio data, and the combination of video image etc.);
Video conferencing system shown in Figure 2 is made up of the individual video conference terminal of N+1 (N >=2); Wherein, (the following abbreviation: the chairman terminal), the chairman terminal also has the partial function of medium control except the function with conference terminal as chairman's conference terminal to have a terminal.The chairman terminal can be applied for that the conference terminal that has obtained this token is just as the chairman terminal through the mode of Token Control to turnkey console (Fig. 2 does not show) by each conference terminal.
Embodiment 1
Present embodiment provides a kind of adaptation processing method of video image, and is as shown in Figure 3, is applied in the video conferencing system; This video conferencing system comprises at least two video conference terminals; Wherein, at least two video conference terminals lay respectively in two meeting-place at least, and this method comprises:
301, receive the video code flow of showing for the first meeting-place display device to be transmitted;
In the concrete process that realizes, first meeting-place in 301 is for participating in the not specific meeting-place in the video conference.
302, obtain the characterisitic parameter of the display device in said first meeting-place, the characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in said first meeting-place at first video conference terminal place;
The obtain manner of the characterisitic parameter of the display device in first meeting-place can have following at least two kinds:
Mode one: geometric correction parameter and the color correction parameter of obtaining the display device in first meeting-place; From said geometric correction parameter and color correction parameter, extract the display device characterisitic parameter;
Mode two: receive the display device characterisitic parameter that the video conference terminal in first meeting-place sends.
Need to prove that the order of above-mentioned steps 301 and step 302 is not strict fixing, in concrete implementation procedure, can carry out 302 earlier, carries out 301 again; Perhaps carry out 301 earlier, carry out 302 again; Press down or 301 and 302 execution simultaneously,, do not add any qualification in the embodiments of the invention this.
303, according to the characterisitic parameter of the display device in said first meeting-place said video code flow is handled, and the video code flow after will handling sends to said first meeting-place.
Characterisitic parameter according to the display device in first meeting-place is handled and can be specially said video code flow; At first decoding receives the video code flow that the display device of giving first meeting-place to be transmitted shows; Obtain video image, according to each parameter in the display device characterisitic parameter in first meeting-place said video image is pursued framing control then; Can also adopt the video image after the decoding, according to the parameter combinations of the characterisitic parameter of the display device in first meeting-place video image pursue framing control, in concrete application, can also adopt other modes, to this, embodiments of the invention do not add qualification.
The executive agent of the adaptation processing method of above-mentioned video image can be videoconference server; Specifically can be MCU equipment (as shown in Figure 1); Also can be integrated the video conference terminal of video image adaptation processing module (the chairman terminal in the video meeting system as shown in Figure 2); To this, embodiments of the invention do not add qualification.
The adaptation processing method of the video image that the embodiment of the invention provides; Through receiving the video code flow that the display device of giving first meeting-place to be transmitted shows; And obtain the display device characterisitic parameter in first meeting-place; According to the characterisitic parameter of the display device in first meeting-place video code flow is handled then, and the video code flow after will handling sends to first meeting-place.With the adjusting of display device different in the prior art normally the engineering staff in each meeting-place rely on the judgement of human eye to accomplish; Can waste more manpower; The display device that also can't guarantee simultaneously video conference terminal demonstrates preferably picture effect and compares; The scheme that provides in the embodiment of the invention is carried out treatment for correcting through the display device characterisitic parameter that adopts each video conference terminal to video image, can save manpower and can make the display device of different video conference terminals present picture effect preferably.
In order to realize the adaptation processing method of above-mentioned a kind of video image, present embodiment also provides a kind of equipment that carries out the adaptation processing of video image, and this equipment can be videoconference server; Like MCU equipment; Also can be the integrated video conference terminal of video image adaptation processing module, as shown in Figure 4, this equipment comprises: receiving element 401; Acquiring unit 402, performance element 403.
Receiving element 401 is used to receive the video code flow of showing for the first meeting-place display device to be transmitted;
Particularly; When acquiring unit 402 obtains the characterisitic parameter of display device in first meeting-place; Can obtain the geometric correction parameter and the color correction parameter of the display device in said first meeting-place through acquisition module, extraction module extracts the display device characterisitic parameter from said geometric correction parameter and color correction parameter then; Also can pass through receiver module, receive the display device characterisitic parameter that the video conference terminal in said first meeting-place sends; To this, embodiments of the invention do not add qualification.
Particularly; Decoder module in the performance element 403 said video code flow of decoding obtains video image, adjusting module then; Each parameter according in the display device characterisitic parameter in said first meeting-place is pursued framing control to said video image; Can also adopt the video image after the decoding, video image pursue framing control, in concrete application, can also adopt other modes according to the parameter combinations of the characterisitic parameter of the display device in first meeting-place; To this, embodiments of the invention do not add qualification.
The equipment that the embodiment of the invention provides; Receive the video code flow that the display device of giving first meeting-place to be transmitted shows through receiving element; And obtain the display device characterisitic parameter in first meeting-place with acquiring unit; Adopt performance element video code flow to be handled then, and the video code flow after will handling send to said first meeting-place according to the display device characterisitic parameter in first meeting-place.With the adjusting of display device in the prior art normally the engineering staff in each meeting-place rely on the judgement of human eye to adjust; Can waste more manpower; Can't guarantee also simultaneously that picture effect that the display device of video conference terminal demonstrates always reaches better compares; The display device of each video conference terminal that provides in the embodiment of the invention carries out treatment for correcting through adopting the display device characterisitic parameter to video image, can save manpower and can make the display device of different video conference terminals present picture effect preferably.
In addition; The embodiment of the invention also provides a kind of video conferencing system, and said system is made up of at least two video conference terminals and a videoconference server, wherein; Described at least two video conference terminals lay respectively in two meeting-place at least, and said system comprises;
Said videoconference server receives the video code flow that the display device of giving first meeting-place to be transmitted shows; And obtain the characterisitic parameter of the display device in said first meeting-place; The characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in meeting-place, first video conference terminal place; Said videoconference server is handled said video code flow according to the characterisitic parameter of the display device in said first meeting-place; And the video code flow after will handling, send to said first meeting-place.
Particularly; When videoconference server is obtained the characterisitic parameter of display device in first meeting-place; Can obtain the geometric correction parameter and the color correction parameter of the display device in first meeting-place, and from said geometric correction parameter and color correction parameter, extract the display device characterisitic parameter;
Perhaps, said videoconference server receives the display device characterisitic parameter that the video conference terminal in said first meeting-place sends.
Videoconference server is handled said video code flow according to the characterisitic parameter of the display device in first meeting-place; And the video code flow after will handling; Send to first meeting-place, particularly, the video code flow that the videoconference server decoding receives; Obtain video image, this video image is pursued framing control according to each parameter in the characterisitic parameter of the display device in first meeting-place.
Therefore at least two video conference terminals are arranged in the video conferencing system that the embodiment of the invention provides, need obtain the characterisitic parameter of the display device in different meeting-place, treat the video code flow that the display device that is transferred to corresponding meeting-place shows and handle.Here, describing and conveniently understand for simple, is to be that example is described with first meeting-place (the not specific meeting-place in the video meeting system).
The video conferencing system that the embodiment of the invention provides; Receive the video code flow that the display device of giving first meeting-place to be transmitted shows through videoconference server; And obtain the display device characterisitic parameter in first meeting-place, according to the display device characterisitic parameter video code flow is adjusted.With the adjusting of display device in the prior art normally the engineering staff in each meeting-place rely on the judgement of human eye to accomplish; Can waste more manpower; Can't guarantee also simultaneously that picture effect that the display device of video conference terminal demonstrates reaches better compares; The display device in each meeting-place that provides in the embodiment of the invention carries out treatment for correcting through adopting the display device characterisitic parameter to video image, can save manpower and can make the display device of different video conference terminals present picture effect preferably.
Embodiment 2
The embodiment of the invention provides a kind of adaptation processing method of video image; Be applied in the video conferencing system, this video conferencing system comprises a videoconference server, and at least two video conference terminals; Wherein, Described at least two video conference terminals lay respectively in two meeting-place at least, need to prove, the scheme that the embodiment of the invention provides is the method that example is described the video conferencing system adjustment with first meeting-place at video conference terminal place.
As shown in Figure 5, this method comprises:
Before the adaptation processing of the video image that the embodiment of the invention provides; Need the commissioning staff that the display device in each meeting-place is carried out tentatively debugging; Make the display effect of display device debug how much upward alignment as far as possible, approaching as far as possible on the color, follow-up operating efficiency is improved.
Videoconference server can be MCU, also can be integrated the video conference terminal of video image adaptation processing module (being chairman terminal shown in Figure 2), and the video code flow that video conference terminal will be adjusted sends to videoconference server.
Step 502 is obtained the geometric correction parameter and the color correction parameter of the display device in said first meeting-place;
Particularly; Videoconference server is sent the geometric correction template image and is shown to video conference terminal; The geometric correction template image is kept on the videoconference server; Video conference terminal is taken the effect image on the display device of said geometric correction template image in the meeting-place at video conference terminal place, and the image of taking is returned to videoconference server, and videoconference server is according to the image calculation geometric correction parameter of passback;
Videoconference server judges whether the error of the geometric correction parameter that calculates satisfies required precision; If satisfy required precision; After then adopting the geometric correction parameter that calculates that the geometric correction template image is proofreaied and correct, the display effect on the display device in the meeting-place that video conference terminal belongs to is better, if do not satisfy required precision; After then adopting the geometric correction parameter that calculates that the geometric correction template image is proofreaied and correct; Display effect on the display device in the meeting-place that video conference terminal belongs to is bad, exists splicing regions, this moment to need the computational process of videoconference server to carry out repeatedly iteration when for example on the display device in the meeting-place that video conference terminal belongs to, showing; Template image after geometric correction is handled in continuation sends on the display device in meeting-place at video conference terminal place and shows; Effect image on the video conference terminal filmed display screen, and passback is calculated to videoconference server once more; Iteration successively; Error up to the geometric correction parameter that calculates satisfies required precision, then adopt the geometric correction parameter calculate that the geometric correction template image is proofreaied and correct after, the display effect on the display device in the meeting-place that belongs to of video conference terminal is better like this;
In like manner; Videoconference server is sent the color correction template image and is shown to video conference terminal; The color correction template image is kept at videoconference server; Video conference terminal is taken the effect image on the display device of said color correction template image in the meeting-place at video conference terminal place, and the image of taking is returned to videoconference server, and videoconference server is according to the image calculation color correction parameter of taking;
Videoconference server judges whether the error of the color correction parameter that calculates satisfies required precision; If satisfy required precision; After then adopting the color correction parameter that calculates that the color correction template image is proofreaied and correct, the display effect on the display device in the meeting-place that video conference terminal belongs to is better, if do not satisfy required precision; After then adopting the color correction parameter that calculates that the color correction template image is proofreaied and correct; Display effect on the display device in the meeting-place that video conference terminal belongs to is bad, exists bright area, this moment to need the computational process of videoconference server to carry out repeatedly iteration when for example on the display device in the meeting-place that video conference terminal belongs to, showing; The template image of continuation after with color correction process sends on the display device in meeting-place at video conference terminal place and shows; Effect image on the video conference terminal filmed display screen, and return to videoconference server, videoconference server can be calculated once more; Iteration successively; Error up to the color correction parameter that calculates satisfies required precision, then adopt the color correction parameter calculate that the color correction template image is proofreaied and correct after, the display effect on the display device in the meeting-place that belongs to of video conference terminal is better like this.
Need to prove, also need obtain the geometric correction parameter and the color correction parameter of the display device in other meeting-place.
Said display device characterisitic parameter comprises: the sign of whether carrying out follow-up processing, image level resolution, image vertical resolution, image bit are dark, geometric correction mark, geometric correction parameter, image brightness adjustment operational label, image brightness adjustment coefficient.
Particularly, whether " sign of whether carrying out follow-up processing " expression video image need adopt the characterisitic parameter of display device to pursue framing control;
The horizontal resolution of the display device images displayed in " image level resolution " expression first meeting-place, " image vertical resolution " the vertical resolution of representing the display device images displayed in first meeting-place;
The used figure place of each pixel is stored in " image bit is dark " expression, confirms the presumable number of colours of each pixel of coloured image, and for example each pixel is used 8 bit representations, and promptly said image bit is 8 deeply, and then the maximum color number is 2
8, i.e. 256 kinds of number of colours;
Whether comprise " geometric correction parameter " in " geometric correction mark " expression display device characterisitic parameter;
When display screen is when being made up of a plurality of screens; Possibly produce overlapping between adjacent image; Will cause the brightness of lap image higher, at this moment, need application image brightness adjustment correcting image; Make whole screen present the brightness uniform images, whether " image brightness adjustment operational label " presentation video need carry out the image brightness adjustment is handled;
In order to use the display device characterisitic parameter video image is handled; Make video image reach good display; The display device characterisitic parameter also comprises: matrix color correction mark, matrix color correction parameter, tint correction mark, tint correction curve interpolation number of spots, 3D-LUT (Three Dimensions-Look-Up-Table; The three-dimensional display look-up table) color correction mark, gridden data among grid point interval, the 3D-LUT among the 3D-LUT.
The matrix color correction is meant to be needed before the correction and the relation that exists between two images after proofreading and correct; Can use the matrix notation of a 3*3; Make to after the said matrix color correction of the image applications parameter before proofreading and correct, obtain color correction preferably, whether the said image of " matrix color correction mark " expression need carry out the matrix color correction; If desired image is carried out the correction of matrix color, then adopt matrix color correction parameter image to be pursued the correction of frame;
Tone is the color contrast that the whole relation between look and the look constitutes, and refers to the general inclination of image color, and whether the said image of " tint correction mark " expression need carry out tint correction; When the tint correction mark is represented to carry out tint correction to image, read corresponding tint correction curve interpolation number of spots the pixel of image is carried out the integral color that interpolation is adjusted image;
The 3D-LUT color correction is to not carrying out a kind of method of image processing with the image that said matrix color correction parameter is handled; Particularly; Be a kind of according to the three-dimensional display look-up table, the color correcting method through interpolation is proofreaied and correct image can improve the colour correction precision; Whether " 3D-LUT color correction mark " presentation video need carry out the 3D-LUT color correction; If desired image is carried out the 3D-LUT color correction, then read among the 3D-LUT grid point two parameters of gridden data at interval and among the 3D-LUT, and adopt these two parameters that image is adjusted.
Step 502 and step 503 are the process of the display device characterisitic parameter in the meeting-place that obtains video conference terminal place; The display device characterisitic parameter that obtains the meeting-place at video conference terminal place can also be step 504, receives the display device characterisitic parameter that the video conference terminal in first meeting-place sends.
Need to prove; The order that videoconference server receives these two flow processs of display device characterisitic parameter that video code flow that the display device of giving first meeting-place to be transmitted shows and videoconference server obtain first meeting-place is not strictly determined; Can receive the video code flow that the display device of giving first meeting-place to be transmitted shows earlier, obtain the display device characterisitic parameter in first meeting-place again, also can obtain the display device characterisitic parameter in first meeting-place earlier; Receive the display device in first meeting-place of giving to be transmitted again and carry out the display video code stream; Perhaps both carry out simultaneously, and to this, embodiments of the invention do not add qualification.
Particularly; Videoconference server receives the display device characterisitic parameter that the video conference terminal in each meeting-place sends; The video conference terminal basis is the characteristic of the display device in meeting-place separately; Calculate the characterisitic parameter of the display device in the meeting-place separately, then the display device characterisitic parameter that calculates is carried at compression protocol and H.263 sends to said server in SEI (Supplemental Enhancement Information, the supplemental enhancement information) message in the agreement; Can adopt the SEI message in the agreement H.263 to come the self-defining information of transmission user; Display device characterisitic parameter in the embodiment of the invention can be in the data Layer in the said SEI message untapped memory space, for example: can define address in the data Layer in the SEI message and be any position in the position of 36 position to 256, preferably; Can define address in the data Layer in the SEI message and be 256 position and deposit the display device characterisitic parameter, as shown in the table:
| Sei_payload(payloadType，payloadSize){ | Category |
| If(payloadType＝＝0) | |
| buffering_period(payloadSize) | 5 |
| Else?if((payloadType＝＝1) | |
| pic_timing(payloadSize) | 5 |
| ...... | |
| if(payloadType＝＝256) | |
| display_device_info(payloadSize) | 5 |
| else | |
| reserved_sei_message(payloadSize) | 5 |
| if(！byte_aligned()){ | |
| bit_equal_to_one | 5 |
| while(！byte_aligned()) | |
| bit_equal_to_zero | 5 |
| } | |
| } |
The rank of the importance of the different information that the Category in the above-mentioned table representes to stipulate in the agreement H.263; The value of Category all is 5 in the SEI message of agreement H.263; Expression is low slightly to the importance of the message that should be worth; The message that importance is low slightly then can transmit also and can not transmit, and after in transport process, losing, also can not retransfer.
The code flow structure of display device characterisitic parameter in SEI information in the embodiment of the invention is as shown in the table:
The number of bits that the Unsigned of descriptor (12) expression display characteristic parameter takies in the above-mentioned table is signless 12 bits; The meaning of Unsigned (8), Unsigned (1), U nsigned (32) is identical with Unsigned (12); The display device characterisitic parameter element in the video code flow partly represented to actually exist in black matrix, and non-black-body partly is the auxiliary variable in the decode procedure.
Particularly, earlier the video code flow that receives is decoded, obtain video image, video image is adjusted according to the characterisitic parameter of display device.
Parsing and displaying device characteristics parameter successively; In the display device characterisitic parameter; It is 0 or 1 that regulation is given the assignment of whether carrying out the sign of follow-up processing, is 0 if whether carry out the assignment of the sign of follow-up processing, and then presentation video need not carry out follow-up processing; Stop parsing and displaying device characteristics parameter; If whether carrying out the assignment of the sign of follow-up processing is 1, then presentation video need carry out follow-up processing, is 1 if whether carry out the assignment of the sign of follow-up processing; Dark these three parameters of reading images horizontal resolution, image vertical resolution, image bit then, and confirm image brightness adjustment coefficient deeply according to image level resolution, image vertical resolution, image bit;
It is 0 or 1 that regulation is given the assignment of geometric correction mark, reads the geometric correction mark, if the assignment of geometric correction mark is 0; Then expression need not carried out geometric correction; At this moment, get into the flow process of image brightness adjustment, if the assignment of geometric correction mark is 1; Then represent to comprise the geometric correction parameter in the display device characterisitic parameter, image is handled accordingly;
Further, when adopting the geometric correction parameter that image is carried out geometric correction, for example; The data length of each pixel is 32bit, and wherein, high 16bit is the horizontal direction correction data in the 32bit data; Low 16bit is the vertical direction correction data; High 13bit is an integer part in each 16bit data, and low 3bit is a fractional part, so precision is 1/8 pixel.
If original image is I, the horizontal coordinate X of the pixel of original image
0, vertical coordinate is Y
0, the level correction value is dx, and the vertical correction value is dy, and then the pixel value behind the pixel correction of original image is I (X
0, Y
0)=I (X
0+ dx, Y
0+ dy);
Regulation is 0 or 1 to the assignment of image brightness adjustment operational label; Reading images brightness adjustment operational label, if the assignment of image brightness adjustment operational label is 0, then presentation video need not carry out image brightness adjustment processing; At this moment; Get into the flow process of matrix color correction, if the assignment of image brightness adjustment operational label is 1, then reading images brightness adjustment coefficient carries out the brightness adjustment according to the image brightness adjustment coefficient of confirming to image and handles;
Further, when adopting image brightness adjustment coefficient that image is carried out the brightness adjustment, establishing original image is I, the horizontal coordinate X of the pixel of original image
0, vertical coordinate is Y
0, the brightness adjustment coefficient that need carry out the position of brightness adjustment in the original image is blend (x
0, y
0), the data after then proofreading and correct are I (X
0, Y
0)=I (X
0, Y
0) * blend (x
0, y
0);
It is 0 or 1 that regulation is given the assignment of matrix color correction mark; Read matrix color correction mark, if the assignment of matrix color correction mark is 0, then presentation video need not carry out the matrix color correction process; At this moment; Get into the flow process of tint correction,, then read matrix color correction coefficient and image is carried out color adjustment processing according to the matrix color correction coefficient of confirming if the assignment of matrix color correction mark is 1;
Further, when for example the needs video image displayed being carried out the adjustment of matrix color correction, adjust according to matrix color correction coefficient, operating process is:
R
1＝h
11*R
0+h
12*G
0+h
13*B
0，①
G
1＝h
21*R
0+h
22*G
0+h
23*B
0，②
B
1＝h
31*R
0+h
32*G
0+h
33*B
0，③
Wherein, [R
0, G
0, B
0]
TBe certain any pixel value before proofreading and correct, [R
1, G
1, B
1]
TFor proofreading and correct the pixel value of back certain a bit, h
11, h
12, h
13, h
21, h
22, h
23, h
31, h
32, h
33Be the element in the field of adjustment color of image, for manufacturer is provided with according to the difference of imageing sensor.
Can stipulate that wherein each color correction data length is 32, the highest 24 is integer part, and least-significant byte is a fractional part, and the precision of floating number is 1/256 like this.
When video image is handled; 1. the calibration equipment of video conference terminal obtains the pixel value that the A before proofreading and correct is ordered, according to above-mentioned, 2.; 3. the pixel value that the A after three computing formula can obtain to proofread and correct is ordered is adjusted the pixel value that the A after the correction that obtains is ordered to video image.In like manner, all pixel values of the image in each frame of video image are all carried out such adjustment after, can obtain adjusted video image;
It is 0 or 1 that regulation is given the assignment of tint correction mark; Read the tint correction mark, if the assignment of tint correction mark is 0, then presentation video need not carry out the tint correction processing; At this moment; Get into the flow process of 3D-LUT color correction,, then read tint correction curve interpolation number of spots and the pixel of image is carried out the integral color that interpolation is adjusted image according to the tint correction curve interpolation number of spots of confirming if the assignment of tint correction mark is 1;
Further, adopt tint correction curve interpolation number of spots that the pixel of image is carried out interpolation when adjusting the integral color of image, the red component of establishing a certain pixel is R
i, the red component after the correction is R
0, then trimming process is: R
0=F (R
i), the generation method of this curve is as shown in Figure 6, wherein F is the tint correction curve, i1, the result that i2 is corresponding is respectively o1, o2, tint correction curve F be at i1, the part between the i2 by (i1, o1), (i2 o2) obtains through linear interpolation; Color is proofreaied and correct the back color corresponding to o corresponding to i before the correction in the correction data;
It is 0 or 1 that regulation is given the assignment of 3D-LUT color correction mark; Read 3D-LUT color correction mark, if the assignment of 3D-LUT color correction mark is 0, then presentation video need not carry out the 3D-LUT color correction process; Withdraw from process of analysis; If the assignment of 3D-LUT color correction mark is 1, then reads among the 3D-LUT grid point two parameters of gridden data color_lut_pivot at interval and among the 3D-LUT, and adopt these two parameters that image is adjusted;
Further, establishing original image is I, the horizontal coordinate x of the pixel of original image
0, vertical coordinate is y
0, the RGB component of the pixel of original image is respectively R, G, B; Data after then proofreading and correct through 3D-LUT are: I (x
0, y
0)=color_lut_pivot [R/step] [G/step] [B/step] is not the situation of integer for R/step G/step B/step, adopts 4 body interpolation methods, is prior art about 4 body interpolation methods, and embodiments of the invention do not limit.
Like this, after whole display device characterisitic parameter parsing completion, withdraw from process of analysis, at this moment,, can on display device, demonstrate the picture of accomplishing smoothness through adopting the adjusted video image of display device characterisitic parameter.
This step can be regulated to the different display devices in meeting-place, different video conference terminal place accordingly, make the display device characterisitic parameter proofread and correct adjustment to video image after, can on display device, demonstrate and accomplish smooth picture.
Display device in the meeting-place, video conference terminal place can be different display devices; The quantity that can be display device is different; The type that can be display device is different; Also can be the screen of particular type, for example display device can be a liquid crystal display screen, can be spliced into the plane for three liquid crystal display screens; Display device can be traditional C RT (Cathode Ray Tube, the display of use cathode ray tube), can be liquid crystal; Display device can be plane curtain, folding face curtain, arc curtain etc.; Video conference terminal receive coding by the video code flow after the framing control; Be presented at after decoding on the display device in meeting-place at this video conference terminal place, can demonstrate and accomplish smooth picture.
The adaptation processing method of the video image that the embodiment of the invention provides; Through receiving the video code flow that the display device of giving first meeting-place to be transmitted shows; And obtain the display device characterisitic parameter in first meeting-place; According to the display device characterisitic parameter video code flow is adjusted, and adjusted video image is shown on the display device on the video conference terminal.Regulate display device with the common human eye that relies in the prior art; Can waste more manpower; Can't guarantee also simultaneously that picture effect that the display device of video conference terminal demonstrates always reaches better compares; The treatment for correcting of the scheme that provides in the embodiment of the invention through adopting the display device characterisitic parameter that video image is pursued frame can be saved manpower, and can be made the display device of different video conference terminals present picture effect preferably.
In order to realize the adaptation processing method of above-mentioned video image; The embodiment of the invention provides a kind of adaptation processing equipment of video image; This equipment is videoconference server, specifically can be MCU, also can be integrated video conference terminal with video image adaptation processing module.As shown in Figure 7, this equipment comprises: receiving element 701, acquiring unit 702, acquisition module 703, extraction module 704, receiver module 705, performance element 706, decoder module 707, adjusting module 708.
Receiving element 701 is used to receive the display device in first meeting-place of giving to be transmitted and carries out the display video code stream;
Acquiring unit 702 is used to obtain the characterisitic parameter of the display device in said first meeting-place, and the characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in said first meeting-place at first video conference terminal place;
The characterisitic parameter that the characterisitic parameter of display device calculates for the concrete property according to the display device in first meeting-place; The characterisitic parameter of display device comprises: the sign of whether carrying out follow-up processing; Image level resolution, image vertical resolution, image bit are dark, geometric correction mark, geometric correction parameter, image attenuation operational label, image attenuation coefficient; Also comprise: matrix color correction mark, matrix color correction parameter, tint correction mark, tint correction curve interpolation number of spots, 3D-LUT color correction mark, gridden data among grid point interval, the 3D-LUT among the 3D-LUT.
Acquiring unit 702 comprises: acquisition module 703 is used for obtaining the geometric correction parameter and the color correction parameter of the display device in said first meeting-place; Extraction module 704 is used for extracting the display device characterisitic parameter from said geometric correction parameter and color correction parameter;
Perhaps, the receiver module 705 in the acquiring unit 702 is used for receiving the display device characterisitic parameter that the video conference terminal in said first meeting-place sends; At this moment, video conference terminal sends to videoconference server after its characterisitic parameter that belongs to the display device separately in meeting-place is calculated.
After obtaining the display device characterisitic parameter, performance element 706 be used for according to the characterisitic parameter of the display device in said first meeting-place said video code flow being handled, and the video code flow after will handling sends to said first meeting-place.
Adjusting module 708 in the performance element 706 is used for according to each parameter of the display device characterisitic parameter in said first meeting-place said video image being pursued framing control.
The device that the embodiment of the invention provides; With display device characterisitic parameter according to first meeting-place; Handling the video code flow that receives in the meeting is that example is described, and particularly, needs to receive the display device characterisitic parameter in each meeting-place; Handle the video code flow that receives in the meeting, and the video code flow after will handling sends to each meeting-place.
The equipment that the embodiment of the invention provides; Receive the video code flow that the display device of giving first meeting-place to be transmitted shows through receiving element; Acquiring unit obtains the characterisitic parameter of the display device in first meeting-place then, sends to first meeting-place after according to the display device characterisitic parameter in first meeting-place video code flow being adjusted.Normally rely on the judgement of human eye to accomplish with the adjusting of display device in the prior art; Can waste many manpowers; Can't guarantee also simultaneously that display effect that the display device of video conference terminal demonstrates always reaches better compares; The display unit that provides in the embodiment of the invention is carried out treatment for correcting through the display device characterisitic parameter that adopts each meeting-place to video image; Thereby make the display device of can the be adaptive different video conference terminal of video image after the correction, make display device demonstrate the picture of complete smoothness, and can save manpower.
Embodiment 3
The adaptation processing method of above-mentioned video image, equipment can be applied to image processing field; Thereby form a kind of video conferencing system; So that can realize said method; As shown in Figure 8, this video conferencing system comprises: video conference terminal 801, video conference terminal 802 (at least 2 of video conference terminals), a videoconference server 803.
And videoconference server 803 receives the video code flow that the display device of giving the meeting-place at video conference terminal 802 places to be transmitted shows, and the display device characterisitic parameter that sends of receiver, video conference terminal 802; Said display device characterisitic parameter is the display capability information of display device in the meeting-place at said video conference terminal 802 places;
The display device characterisitic parameter that videoconference server 803 is obtained meeting-place, video conference terminal place can be following any mode:
Mode one: videoconference server 803 is obtained geometric correction parameter, the color correction parameter of the display device in meeting-place, video conference terminal 801 place, and from this geometric correction parameter and color correction parameter, extracts the characterisitic parameter of the display device in meeting-place, video conference terminal 801 place;
Mode two: the display device characterisitic parameter of videoconference server 803 receiver, video conference terminals 801 and video conference terminal 802 transmissions; Particularly; SEI message in the H.263 agreement that the said video conference terminal of said videoconference server 803 receptions sends is carried said display device characterisitic parameter in the said SEI message.
Particularly; The video code flow that videoconference server 803 is decoded and received respectively; Each parameter according in the characterisitic parameter of the display device in meeting-place, video conference terminal 801 place is pursued framing control to said video image; And the video code flow after will handling, send to the meeting-place that said video conference terminal 801 belongs to; In like manner, said video image is pursued framing control, and the video code flow after will handling, send to the meeting-place at said video conference terminal 802 places according to each parameter in the characterisitic parameter of the display device in meeting-place, said video conference terminal 802 place.
The system that the embodiment of the invention provides; Receive the video code flow that shows to the display device in each meeting-place to be transmitted through videoconference server; And obtain the characterisitic parameter of the display device in meeting-place, each video conference terminal place, according to the characterisitic parameter of the display device in each meeting-place, video conference terminal place the video code flow of corresponding each video conference terminal is adjusted then.Need rely on human eye to accomplish with the adjustment to display device in the prior art; Can waste more manpower; Can't guarantee also simultaneously that display effect that the display device of video conference terminal demonstrates always reaches better compares; The treatment for correcting of the display unit that provides in the embodiment of the invention through adopting the display device characterisitic parameter that video image is pursued frame can be saved manpower and can be made the display device of different video conference terminals present good display.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection range with claim.
Claims (13)
1. the adaptation processing method of a video image is applied to it is characterized in that in the video conferencing system; Said video conferencing system comprises at least two video conference terminals; Wherein, described at least two video conference terminals lay respectively in two meeting-place at least, and said method comprises:
Receive the video code flow that the display device of giving first meeting-place to be transmitted shows;
Obtain the characterisitic parameter of the display device in said first meeting-place, the characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in said first meeting-place at first video conference terminal place;
Characterisitic parameter according to the display device in said first meeting-place is handled said video code flow, and the video code flow after will handling sends to said first meeting-place.
2. the adaptation processing method of video image according to claim 1 is characterized in that, the said characterisitic parameter that obtains the display device in said first meeting-place comprises:
Obtain the geometric correction parameter and the color correction parameter of the display device in said first meeting-place; From said geometric correction parameter and color correction parameter, extract the display device characterisitic parameter;
Perhaps, receive the display device characterisitic parameter that the video conference terminal in said first meeting-place sends.
3. the adaptation processing method of video image according to claim 1 and 2 is characterized in that, the characterisitic parameter of said display device according to first meeting-place is handled said video code flow and comprised:
The said video code flow of decoding obtains video image;
Each parameter according in the display device characterisitic parameter in said first meeting-place is pursued framing control to said video image.
4. according to the adaptation processing method of each described video image among the claim 1-3; It is characterized in that said display device characterisitic parameter comprises at least as next parameter: image level resolution, image vertical resolution, image bit are dark, geometric correction parameter, image brightness adjustment coefficient.
5. according to the adaptation processing method of claim 2 or 4 described video images, it is characterized in that the display device characterisitic parameter that the video conference terminal in said first meeting-place of said reception sends comprises:
Receive that video conference terminal in said first meeting-place sends based on the additional enhancing message SEI message in the agreement H.263, carry said display device characterisitic parameter in the said SEI message.
6. the adaptation processing equipment of a video image, said equipment is applied to it is characterized in that in the video conferencing system, comprises:
Receiving element is used to receive the video code flow that the display device of giving first meeting-place to be transmitted shows;
Acquiring unit is used to obtain the characterisitic parameter of the display device in said first meeting-place, and the characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in said first meeting-place at first video conference terminal place;
Performance element be used for according to the characterisitic parameter of the display device in said first meeting-place said video code flow being handled, and the video code flow after will handling sends to said first meeting-place.
7. equipment according to claim 6 is characterized in that, said acquiring unit comprises:
Acquisition module is used for obtaining the geometric correction parameter and the color correction parameter of the display device in said first meeting-place; Extraction module is used for extracting the display device characterisitic parameter from said geometric correction parameter and color correction parameter;
Perhaps, receiver module is used for receiving the display device characterisitic parameter that the video conference terminal in said first meeting-place sends.
8. according to claim 6 or 7 described equipment, it is characterized in that said performance element comprises:
Decoder module, the said video code flow that is used to decode obtains video image;
Adjusting module is used for according to each parameter of the display device characterisitic parameter in said first meeting-place said video image being pursued framing control.
9. according to each described equipment in claim 7 or 8, it is characterized in that said receiver module specifically is used for:
Receive that video conference terminal in said first meeting-place sends based on the additional enhancing message SEI message in the agreement H.263, carry said display device characterisitic parameter in the said SEI message.
10. a video conferencing system is characterized in that, comprising: at least two video conference terminals, a videoconference server, and wherein, said at least two video conference terminals lay respectively in two meeting-place at least, and said system comprises:
Said videoconference server receives the video code flow that the display device of giving first meeting-place to be transmitted shows; And obtain the characterisitic parameter of the display device in said first meeting-place; The characterisitic parameter of the display device in said first meeting-place is the display capability information of the display device in meeting-place, first video conference terminal place; Said videoconference server is handled said video code flow according to the characterisitic parameter of the display device in said first meeting-place; And the video code flow after will handling, send to said first meeting-place.
11. video conferencing system according to claim 10 is characterized in that, the said characterisitic parameter that obtains the display device in first meeting-place comprises:
Said videoconference server is obtained the geometric correction parameter and the color correction parameter of the display device in said first meeting-place, and from said geometric correction parameter and color correction parameter, extracts the display device characterisitic parameter;
Perhaps, said videoconference server receives the display device characterisitic parameter that the video conference terminal in said first meeting-place sends.
12., it is characterized in that said videoconference server comprises said video code flow adjustment according to the characterisitic parameter of the display device in said first meeting-place according to claim 10 or 11 described video conferencing systems:
The said videoconference server said video code flow of decoding obtains video image, according to each parameter in the characterisitic parameter of the display device in said first meeting-place said video image is pursued framing control.
13., it is characterized in that the display device characterisitic parameter that said videoconference server receives the video conference terminal transmission in said first meeting-place comprises according to claim 11 or 12 described video conferencing systems:
Said videoconference server receive that video conference terminal in said first meeting-place sends based on the SEI message in the agreement H.263, carry said display device characterisitic parameter in the said SEI message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101591895A CN102833519A (en) | 2011-06-14 | 2011-06-14 | Method, device and system for adaption processing on video image |
| PCT/CN2012/076755 WO2012171452A1 (en) | 2011-06-14 | 2012-06-12 | Method, device and system for adapting video image processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101591895A CN102833519A (en) | 2011-06-14 | 2011-06-14 | Method, device and system for adaption processing on video image |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102833519A true CN102833519A (en) | 2012-12-19 |
Family
ID=47336461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101591895A Pending CN102833519A (en) | 2011-06-14 | 2011-06-14 | Method, device and system for adaption processing on video image |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102833519A (en) |
| WO (1) | WO2012171452A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104580993A (en) * | 2015-01-15 | 2015-04-29 | 深圳市捷视飞通科技有限公司 | Wireless digital video multipoint communication method |
| WO2016050071A1 (en) * | 2014-09-29 | 2016-04-07 | 中兴通讯股份有限公司 | Method and apparatus for configuring endpoint capability set |
| CN105630438A (en) * | 2015-07-15 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Projection data processing method, processing apparatus, terminal and projection system |
| CN109525802A (en) * | 2018-11-27 | 2019-03-26 | 平安科技（深圳）有限公司 | A kind of video stream transmission method and device |
| CN111034185A (en) * | 2017-08-23 | 2020-04-17 | 索尼公司 | Video processing device, video processing method, program, and remote communication system |
| CN111935438A (en) * | 2020-07-02 | 2020-11-13 | 维沃移动通信有限公司 | Parameter adjusting method and device |
| CN112702651A (en) * | 2019-10-22 | 2021-04-23 | 中国移动通信有限公司研究院 | HDR video transmission method, device, system and computer readable storage medium |
| CN112822517A (en) * | 2021-01-08 | 2021-05-18 | 西安万像电子科技有限公司 | Resolution adaptation method and device and nonvolatile storage medium |
| CN117857762A (en) * | 2024-03-08 | 2024-04-09 | 深圳市东陆科技有限公司 | Image processing method and device of display module, chip and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10322674A (en) * | 1997-05-21 | 1998-12-04 | Fuji Xerox Co Ltd | Video conference system |
| JP2007096974A (en) * | 2005-09-29 | 2007-04-12 | Toshiba Corp | Video conference terminal and display position determining method |
| CN101207796A (en) * | 2006-12-18 | 2008-06-25 | 中兴通讯股份有限公司 | Method for implementing video distortion based on media server when playing video |
| CN101588252A (en) * | 2008-05-23 | 2009-11-25 | 华为技术有限公司 | Control method and control device of multipoint conference |
| JP2010213133A (en) * | 2009-03-12 | 2010-09-24 | Brother Ind Ltd | Conference terminal device, display control method, and display control program |
| CN102025970A (en) * | 2010-12-15 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Method and system for automatically adjusting display mode of video conference |
| CN102082944A (en) * | 2009-11-30 | 2011-06-01 | 华为终端有限公司 | Conference control method, device and system containing tele-presence conference hall |
-
2011
- 2011-06-14 CN CN2011101591895A patent/CN102833519A/en active Pending
-
2012
- 2012-06-12 WO PCT/CN2012/076755 patent/WO2012171452A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10322674A (en) * | 1997-05-21 | 1998-12-04 | Fuji Xerox Co Ltd | Video conference system |
| JP2007096974A (en) * | 2005-09-29 | 2007-04-12 | Toshiba Corp | Video conference terminal and display position determining method |
| CN101207796A (en) * | 2006-12-18 | 2008-06-25 | 中兴通讯股份有限公司 | Method for implementing video distortion based on media server when playing video |
| CN101588252A (en) * | 2008-05-23 | 2009-11-25 | 华为技术有限公司 | Control method and control device of multipoint conference |
| JP2010213133A (en) * | 2009-03-12 | 2010-09-24 | Brother Ind Ltd | Conference terminal device, display control method, and display control program |
| CN102082944A (en) * | 2009-11-30 | 2011-06-01 | 华为终端有限公司 | Conference control method, device and system containing tele-presence conference hall |
| CN102025970A (en) * | 2010-12-15 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Method and system for automatically adjusting display mode of video conference |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016050071A1 (en) * | 2014-09-29 | 2016-04-07 | 中兴通讯股份有限公司 | Method and apparatus for configuring endpoint capability set |
| CN104580993A (en) * | 2015-01-15 | 2015-04-29 | 深圳市捷视飞通科技有限公司 | Wireless digital video multipoint communication method |
| CN105630438A (en) * | 2015-07-15 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Projection data processing method, processing apparatus, terminal and projection system |
| CN105630438B (en) * | 2015-07-15 | 2018-10-26 | 宇龙计算机通信科技(深圳)有限公司 | Processing method, processing unit, terminal and the optical projection system of data for projection |
| CN111034185B (en) * | 2017-08-23 | 2021-07-27 | 索尼公司 | Video processing device, video processing method, program, and remote communication system |
| CN111034185A (en) * | 2017-08-23 | 2020-04-17 | 索尼公司 | Video processing device, video processing method, program, and remote communication system |
| CN109525802A (en) * | 2018-11-27 | 2019-03-26 | 平安科技（深圳）有限公司 | A kind of video stream transmission method and device |
| CN112702651A (en) * | 2019-10-22 | 2021-04-23 | 中国移动通信有限公司研究院 | HDR video transmission method, device, system and computer readable storage medium |
| CN112702651B (en) * | 2019-10-22 | 2023-03-31 | 中国移动通信有限公司研究院 | HDR video transmission method, device, system and computer readable storage medium |
| CN111935438A (en) * | 2020-07-02 | 2020-11-13 | 维沃移动通信有限公司 | Parameter adjusting method and device |
| CN112822517A (en) * | 2021-01-08 | 2021-05-18 | 西安万像电子科技有限公司 | Resolution adaptation method and device and nonvolatile storage medium |
| CN117857762A (en) * | 2024-03-08 | 2024-04-09 | 深圳市东陆科技有限公司 | Image processing method and device of display module, chip and storage medium |
| CN117857762B (en) * | 2024-03-08 | 2024-05-14 | 深圳市东陆科技有限公司 | Image processing method and device of display module, chip and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012171452A1 (en) | 2012-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102833519A (en) | Method, device and system for adaption processing on video image | |
| US8860776B2 (en) | Conference terminal, conference server, conference system and data processing method | |
| AU2016213760B2 (en) | Media negotiation method, device, and system for multi-stream conference | |
| US8179420B2 (en) | Minimal decoding method for spatially multiplexing digital video pictures | |
| US7616591B2 (en) | Video conferencing system | |
| US8908006B2 (en) | Method, terminal and system for caption transmission in telepresence | |
| US8259624B2 (en) | Dynamic picture layout for video conferencing based on properties derived from received conferencing signals | |
| US8681197B2 (en) | Communication system, terminal apparatus and computer program | |
| CN110603806B (en) | Method and apparatus for gamut mapping | |
| US11381626B2 (en) | Segmented video codec for high resolution and high frame rate video | |
| US20120262531A1 (en) | Scalable Video Encoding in a Multi-View Camera System | |
| CN105635636A (en) | Video conference system and method for realizing transmission control of video image | |
| CN101778246A (en) | Method and device for processing multipicture video image | |
| CN106454256B (en) | A kind of real-time joining method of more videos and device | |
| CN101102487A (en) | Video transmission system and method based on VGA and HDMI display mode | |
| CN109845262B (en) | Method and apparatus for encoding/decoding high dynamic range pictures into an encoded bitstream | |
| CN102231836B (en) | Graphics interchange format (GIF) file processing method and device for digital television system | |
| US8848015B2 (en) | Method and device for processing text data | |
| CN103384319B (en) | The image-scaling method and system of double-current video conference terminal | |
| CN101083752A (en) | Method for displaying meeting place name of video conference and video terminal | |
| CN101350908A (en) | Video data transmission system and method for network video conference | |
| US8284232B2 (en) | Equalization of video streams | |
| CN1996813B (en) | Self-adapted media transfer management of the continuous media stream used for LAN/WAN environment | |
| CN111434113A (en) | Saturation control for high dynamic range reconstruction | |
| CN110740286A (en) | video conference control method, multipoint control unit and video conference terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121219 |