CN103248945A - Image transmission method and system - Google Patents
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- CN103248945A CN103248945A CN2012100243447A CN201210024344A CN103248945A CN 103248945 A CN103248945 A CN 103248945A CN 2012100243447 A CN2012100243447 A CN 2012100243447A CN 201210024344 A CN201210024344 A CN 201210024344A CN 103248945 A CN103248945 A CN 103248945A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
- H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial domain
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/164—Feedback from the receiver or from the transmission channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention provides an image transmission method. The image transmission method comprises the following steps: A, an image which is to be sent is divided by a video sending terminal into a main part and at least one minor part to be sent by broadcasting; B, the main part of the image is received by a video receiving terminal, and the minor part of the image is selectively received by the video receiving terminal according to the attribute parameters of the screen of the video receiving terminal; C, the main part and the minor part of the image received are displayed in a combined manner by the video receiving terminal. In addition, the invention further provides an image transmission system. According to the invention, the image which is to be sent is divided into the main part and the minor part, the main part is received by each video receiving terminal, and the minor part of the image is selectively received by the video receiving terminal according to the attribute parameters of the screen, so that each video receiving terminal can process the video data broadcasted by the video sending terminal normally, and a display effect most suitable for the screen can be reflected.
Description
Technical field
The present invention relates to the image transmission technology field, particularly a kind of method and system of image transmission.
Background technology
Along with the development of integration of three networks technology, the video information that the multi-screen shared service can make current terminal equipment browse sends to other-end equipment in time, to realize this video data of a plurality of Screen sharing.Multi-screen is shared and is mainly referred to by the identical content of the screen display of different terminals.
Yet the screen size of various terminals, resolution difference, the decoding capability of each terminal is also different, therefore, if transmitting terminal is with video data, be after image is broadcasted, if each different receiving terminal terminal is all done identical image and is handled, must cause some receiving terminal terminal can not the described image of normal process, influence user's the effect of watching.
Summary of the invention
For addressing the above problem, the invention provides a kind of method and system of image transmission, to realize that each video receiver is to the normal process of the video data of video sending end broadcasting.
Image transfer method provided by the invention comprises step:
A, video sending end are divided into major part and at least one less important part broadcast transmission with the image that will send;
B, video receiver receive the major part of image, and according to the less important part of the property parameters selective reception image of its screen;
C, video receiver show major part and the combination of less important part of the image that receives.
By last, be divided into major part and less important part by the image that will send, video receiver receives the major part of image, and according to the attribute of screen, choosing receives the less important part of image, realize the normal process of the video data that each video receiver is broadcasted video sending end, and reflect the display effect of suitable screen.
Optionally, the major part of described image is a rectangle part, and the less important part of described image is upper and lower, the left and/or right rectangular image that is positioned at described major part.
By last, by the zone of less important part is cut apart, to satisfy how different recipients screen attribute demand.
Optionally, the less important part of the steps A image of broadcasting is also carried the position relation information of the relative major part of expression;
Described being combined as according to described position relation of step C made up.
By last, by the position relation information of video sending end transmission image, make video receiver realize realizing according to described position relation information the correct combination of each several part image.
Optionally, described property parameters comprises: the size of screen, resolution.
By last, video receiver selects to be fit to the image of screen by different attribute.
Optionally, the major part of described image adopts different coded system broadcasting with less important part.
By last, by primary and secondary is partly adopted the different coding mode, with the less important part employing lossy coding mode of image, to realize the accelerating transmitting terminal coding rate, also be convenient to video receiver and accelerate decoding speed.
Optionally, the various piece of the steps A image of broadcasting is also carried the frame identification information that expression belongs to same two field picture;
Step C comprises that also it is the step that belongs to a two field picture that the frame identification information that belongs to same two field picture according to described expression is judged major part and the less important part of the image that receives.
By last, belong to the information of same two field picture by expression, realize the image combination accurately, can wrong frame combination.
Image delivering system provided by the invention comprises video sending end and at least one video receiver,
Described video sending end comprises:
Image is cut apart module, is used for the image that video sending end will send is divided into major part and at least one less important part;
The image configurations module is used for the position relation information according to the major part of cutting apart the situation configuration image and less important part;
Image major part coding module is used for described image major part is encoded;
The less important part coding module of image is used for the less important part of described image is encoded; With
The image sending module is used for sending the major part of image and the less important part of carrying the position relation information;
Described video receiver comprises:
Image receives selects module, is used for the less important part according to the screen attribute parameter selective reception image of video receiver;
The image receiver module is used for receiving described image major part and image receives the selection selected less important part of module and described position relation information; With
The image sets compound module, the image major part and the less important part that are used for receiving make up demonstration according to the position relation information.
By last, be divided into major part and less important part by the image that will send, each receiving terminal receives the major part of image, and according to the less important part of the property parameters selective reception image of its screen, realizing the normal process of the video data that each video receiver is broadcasted video sending end, and reflect the display effect of suitable screen.
Description of drawings
Fig. 1 is the schematic flow sheet of image transfer method provided by the invention;
Fig. 2 is cut apart schematic diagram for image;
Another schematic diagram that Fig. 3-5 is cut apart for image;
Fig. 6 is the schematic diagram of image delivering system of the present invention.
Embodiment
The embodiment of the invention provides a kind of transmission method and system of image, below in conjunction with accompanying drawing, the embodiment of the invention is described in detail.Referring to Fig. 6, native system comprises video sending end and more than one video receiver, and wherein, video sending end adopts the mode broadcasting video data of broadcasting, and described video data is the multiframe image data.Wherein, video receiver can be television set, notebook computer, mobile phone and PAD etc.To be described in detail this system later.
As shown in Figure 1, image transfer method provided by the invention may further comprise the steps:
Step 10: video sending end is divided into major part and less important part with screen picture, wherein, screen picture can be divided into left and right, the upper, middle and lower five parts row cache of going forward side by side, wherein, the mid portion of screen can be major part, other four parts are less important part, referring to shown in Figure 2.
Be understood that, also can adopt other image partition methods, for example: prolong the column border line, screen-picture is cut apart, referring to shown in Figure 3.
And for example, also can prolong capable edge line and column border line simultaneously, screen-picture be cut apart, referring to shown in Figure 4.
In addition, can prolong wherein a capable edge line and a column border line, screen picture be cut apart, referring to shown in Figure 5.
Step 20: video sending end is encoded the each several part image respectively, and adds the identifier of this parts of images position of expression in the packet header of the each several part image data packets that forms behind coding, and the packet with the each several part image carries out broadcast transmission then.
Wherein, be arranged in upper and lower, left and right in the present embodiment, five part pictures can be represented its position with the identifier of representing the relevant position respectively, as representing respectively with 000,001,010,011,100 of three bytes, and add in the corresponding image data packets.The various piece of the image of broadcasting is also carried the information that expression belongs to same two field picture, is convenient to recipient's identification.
Wherein, for major part and the less important part of image, can adopt different coded systems to send.For example, the less important part of image can be adopted the lossy coding mode reduce the modes such as pixel, resolution of this part, this is because the relative major part of less important part of image is much smaller by the probability that eyes of user focused on, this mode can be accelerated the transmitting terminal coding rate, also is convenient to video receiver and accelerates decoding speed.
Step 30: each video receiver receives the packet of image major part, and selectively receives less important partial data bag, the row cache of going forward side by side according to attributes such as self screens.
Video receiver at first detects the screen size of self and the resolution that can show, decoding rate etc.The less important part that is fit to the image of self according to the screen size of self and the resolution selective reception that can show.
For example: PAD is because the length of screen is bigger, width is less, according to its screen attribute, PAD selective reception screen picture left and right, in three parts of images, then in step 30, the image data packets of the image data packets of only selective reception major part and the less important part of left and right part.Be understood that if PAD is carried out 90 degree rotations, then PAD judges the current location status of placing of screen by its gravity sensor, namely current screen size length and width numerical value is changed the upper, middle, and lower part image of selective reception screen picture.
And for example, the large-size screen monitors TV is suitable for showing complete image because screen is bigger, so the large-size screen monitors TV can receive screen picture major part and all less important parts of selective reception, namely the upper and lower, left and right of Jie Shouing, in the image of five parts.
For another example, mobile phone is because screen is less, major part that can a selective reception screen picture, i.e. mid portion image.
Step 40: each video receiver is according to the location identifier in the packet packet header that receives, and after the less important part of image major part and selective reception is decoded respectively, makes up demonstration.
Be understood that in order to make image combination accurately, when sending image, each image will carry all that expression belongs to the information of being cut apart by a two field picture, for example temporal information in the video or frame identification information, with carry out that image sets is fashionable can wrong frame combination.
In addition, in above-mentioned steps 20, when video sending end is broadcasted each image data packets, can also carry the image attributes data, resolution (being the image size) for example, like this when the video receiver screen is not less than the screen size of transmitting terminal, when it just can judge it and can receive total data according to the image attributes data, then receive all images data.
As shown in Figure 6, image delivering system provided by the present invention comprises video sending end 61 and at least one video receiver 62, wherein,
Described video sending end 61 comprises:
Image is cut apart module 611, is used for the image that video sending end 61 will send is divided into major part and at least one less important part;
Image configurations module 612 is used for position relation information, temporal information, frame identification information and image attributes data according to the major part of cutting apart the situation configuration image and less important part;
Image major part coding module 613 is used for described image major part is encoded;
The less important part coding module 614 of image is used for the less important part of described image is encoded;
Image sending module 615 is used for sending major part and the less important part that is configured image;
Described video receiver 62 comprises:
Image receives selects module 621, is used for the less important part according to the screen attribute parameter selective reception image of video receiver 62;
Image receiver module 622 is used for receiving described image major part and institute's image receives selection module 621 selected less important parts and described position relation information, temporal information, frame identification information and image attributes data;
Image sets compound module 623, the image major part and the less important part that are used for receiving make up demonstration.
By last, video sending end is divided into major part and less important part with the image that sends, each video receiver receives the major part of image, and according to the less important part of the property parameters selective reception image of its screen, realizing the normal process of the video data that each video receiver is broadcasted video sending end, and reflect the display effect of suitable screen.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all in a word, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the method for image transmission is characterized in that the method comprising the steps of:
A, video sending end are divided into major part and at least one less important part broadcast transmission with the image that will send;
B, video receiver receive the major part of image, and according to the less important part of the property parameters selective reception image of its screen;
C, video receiver show major part and the combination of less important part of the image that receives.
2. method according to claim 1 is characterized in that, the major part of described image is a rectangle part, and the less important part of described image is upper and lower, the left and/or right rectangular image that is positioned at described major part.
3. method according to claim 1 and 2 is characterized in that, the less important part of the image that steps A is broadcasted is also carried the position relation information of the relative major part of expression;
Described being combined as according to described position relation of step C made up.
4. method according to claim 1 is characterized in that, described property parameters comprises: the size of screen, resolution.
5. method according to claim 1 is characterized in that, the major part of described image adopts different coded system broadcasting with less important part.
6. method according to claim 1 is characterized in that, the various piece of the image that steps A is broadcasted is also carried the frame identification information that expression belongs to same two field picture;
Step C comprises that also it is the step that belongs to a two field picture that the frame identification information that belongs to same two field picture according to described expression is judged major part and the less important part of the image that receives.
7. an image delivering system comprises video sending end and at least one video receiver, it is characterized in that,
Described video sending end comprises:
Image is cut apart module, is used for the image that video sending end will send is divided into major part and at least one less important part;
The image configurations module is used for the position relation information according to the major part of cutting apart the situation configuration image and less important part;
Image major part coding module is used for described image major part is encoded;
The less important part coding module of image is used for the less important part of described image is encoded; With
The image sending module is used for sending the major part of image and the less important part of carrying the position relation information;
Described video receiver comprises:
Image receives selects module, is used for the less important part according to the screen attribute parameter selective reception image of video receiver;
The image receiver module is used for receiving described image major part and image receives the selection selected less important part of module and described position relation information; With
The image sets compound module, the image major part and the less important part that are used for receiving make up demonstration according to described position relation information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024344.7A CN103248945B (en) | 2012-02-03 | 2012-02-03 | The method and system of image transmitting |
| PCT/CN2012/073740 WO2013113192A1 (en) | 2012-02-03 | 2012-04-10 | Method and system for image transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210024344.7A CN103248945B (en) | 2012-02-03 | 2012-02-03 | The method and system of image transmitting |
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| CN103248945A true CN103248945A (en) | 2013-08-14 |
| CN103248945B CN103248945B (en) | 2017-08-29 |
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| CN201210024344.7A Active CN103248945B (en) | 2012-02-03 | 2012-02-03 | The method and system of image transmitting |
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| WO (1) | WO2013113192A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703022A (en) * | 2013-12-10 | 2015-06-10 | Sk普兰尼特有限公司 | Apparatus and method for screen sharing |
| CN105451061A (en) * | 2014-09-23 | 2016-03-30 | 中兴通讯股份有限公司 | Screen sharing method and device |
| CN109391779A (en) * | 2017-08-10 | 2019-02-26 | 纳格拉维森公司 | The scene view of extension |
| WO2021164631A1 (en) * | 2020-02-20 | 2021-08-26 | 华为技术有限公司 | Screencasting method, and terminal apparatus |
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| CN101365129A (en) * | 2007-08-10 | 2009-02-11 | 映佳科技股份有限公司 | Circuit design for digital image cutting and compressing process |
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- 2012-02-03 CN CN201210024344.7A patent/CN103248945B/en active Active
- 2012-04-10 WO PCT/CN2012/073740 patent/WO2013113192A1/en active Application Filing
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| CN1694533A (en) * | 2005-06-02 | 2005-11-09 | 上海交通大学 | Multi-dimentional scale rate control method of network video coder |
| CN1893356A (en) * | 2005-07-01 | 2007-01-10 | 萧学文 | Method and system for accessing computer resource through mobile terminal |
| CN101262604A (en) * | 2008-04-23 | 2008-09-10 | 哈尔滨工程大学 | A telescopic video coding method for optimized transmission of interested area |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104703022A (en) * | 2013-12-10 | 2015-06-10 | Sk普兰尼特有限公司 | Apparatus and method for screen sharing |
| CN105451061A (en) * | 2014-09-23 | 2016-03-30 | 中兴通讯股份有限公司 | Screen sharing method and device |
| WO2016045356A1 (en) * | 2014-09-23 | 2016-03-31 | 中兴通讯股份有限公司 | Screen sharing method and apparatus |
| CN109391779A (en) * | 2017-08-10 | 2019-02-26 | 纳格拉维森公司 | The scene view of extension |
| CN109391779B (en) * | 2017-08-10 | 2023-04-07 | 纳格拉维森公司 | Method of processing video stream, content consumption apparatus, and computer-readable medium |
| WO2021164631A1 (en) * | 2020-02-20 | 2021-08-26 | 华为技术有限公司 | Screencasting method, and terminal apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013113192A1 (en) | 2013-08-08 |
| CN103248945B (en) | 2017-08-29 |
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