CN101702305B - Method and device for converting, transmitting and processing multi-screen images - Google Patents
Method and device for converting, transmitting and processing multi-screen images Download PDFInfo
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Abstract
The invention relates to a method for converting, transmitting and processing multi-screen images and a functional modular framework for realizing the solution, aiming to solve the problems that the implementation of the method for converting, transmitting and processing the multi-screen images requires high cost, the production and the debugging are complicated and the installation and the maintanence are inconvenient. In the invention, the scheduling pretreatment comprises the steps of carrying out image signal compounding on image signals required to be displayed at the same frame moment in a frame buffer area of a frame rate conversion and compounding parallel multipath image signals obtained by converting a plurality of format conversions into one path and outputting the image signals; and each scheduling post treatment comprises the steps of adopting at least three frame buffer areas for image signal separation before zooming images during single screen image processing, in particular separating images required to be displayed on the screens of corresponding spliced units from one path of compounded image signals in a frame buffer area; and if the separated images have a plurality of widths, the images are output by multiple paths.
Description
Technical field
The present invention relates to multi-screen image transitions method for transmission processing and the functional module construction of realizing its solution.
Background technology
Needing the occasion of large screen display image, can a plurality of screen splicings got up to form a giant-screen, carrying out multi-screen splicing and show that each screen is responsible for one of them part of display image, each screen be called a concatenation unit screen.For example on like the giant-screen of forming by four concatenation unit screen a, b, c, d of Fig. 3, show N (N is the natural number greater than 1) width of cloth image constantly simultaneously at a frame; Can adopt multi-screen image transitions method for transmission processing, dispatch pre-treatment, high-speed serial bus scheduling, scheduling aftertreatment and screen splicing successively and show like Fig. 1.Like Fig. 2, the scheduling pre-treatment has parallel N, is used for receiving respectively N width of cloth image and also handles respectively.Format conversion, frame rate conversion and high speed serializationization are carried out in each scheduling pre-treatment successively, and wherein format conversion is meant the digital signal that the analog or digital picture signal of the foreign format of being imported is converted to local form; Frame rate conversion is meant uses the frame buffer district that the frame rate conversion of signal is become local frame per second; For fear of the picture break-up problem that causes because of the mistiming that writes and read; The frame buffer district should have at least three, and each two field picture in these at least three frame buffer districts is read in turn; High speed serializationization is meant the state that conversion of signals is become to be fit to carry out the high-speed serial bus transmission, comprises steps such as packing, coding, serial conversion.
Frame rate conversion in each scheduling pre-treatment is used at least three frame buffer districts, and is as shown in Figure 1, reads N width of cloth image concurrently with the form of frame synchronization.The task of high-speed serial bus scheduling is that the signal dispatching of self scheduling pre-treatment is in the future given respectively and concatenation unit screen a, b, c, four parallel scheduling aftertreatments that d is corresponding.Suppose only to consider image 1 and 2; Can know according to Fig. 3; Scheduling aftertreatment a need handle the top of image 1 and the upper left quarter of image 2, and scheduling aftertreatment b only need handle the upper right quarter of image 2, and scheduling aftertreatment c need handle the bottom of image 1 and the lower left quarter of image 2; Scheduling aftertreatment d only need handle the right lower quadrant of image 2; Therefore when carrying out the high-speed serial bus scheduling, the signal of image 1 and image 2 need be provided, and only need provide image 2 to get final product at least, shear by each scheduling aftertreatment to scheduling aftertreatment b, d to scheduling aftertreatment a, c.
High speed serialization is separated in each scheduling aftertreatment successively, single screen image is handled and show output, and single screen image is wherein handled need are carried out image zoom at the image of the concatenation unit screen display of correspondence.Aftertreatment a is an example with scheduling, like Fig. 6, its separate the image zoom of high speed serialization in handling with its single screen image all have with need at the corresponding respectively n that walks abreast of the n of corresponding concatenation unit screen display (n is the natural number that is not more than N) width of cloth image individual.N greater than 1 situation under, its single screen image is handled also carrying out image overlay through the n width of cloth image of image zoom, shows output again.
The shortcoming of technique scheme is; For the parallel receive multiple image needs a plurality of parallel scheduling pre-treatment operations; Event needs supporting multipath high-speed serializer circuit, multichannel space switching port to insert high-speed serial bus, also needs supporting multichannel to separate the high speed serialization circuit, causes system cost high; And it is complicated to produce debugging, is not easy to installation and maintenance.
Summary of the invention
It is high that the present invention is intended to solve the required cost of enforcement multi-screen image transitions method for transmission processing, and the production debugging is complicated, is not easy to the problem of installation and maintenance.
Provide multi-screen image transitions method for transmission processing for this reason, dispatch pre-treatment, high-speed serial bus scheduling, scheduling aftertreatment and screen splicing successively and show, wherein,
Format conversion, frame rate conversion and high speed serializationization are carried out in the scheduling pre-treatment successively, and format conversion wherein has parallel a plurality of,
The scheduling aftertreatment have with each concatenation unit screen corresponding respectively walk abreast a plurality of; High speed serialization is separated in each scheduling aftertreatment successively, single screen image is handled and show output; Single screen image is wherein handled need is carried out image zoom at the image of the concatenation unit screen display of correspondence
It is characterized in that,
Described scheduling pre-treatment: in a frame buffer district of frame rate conversion to need same frame constantly the images displayed signal to carry out picture signal compound, be combined into one the tunnel to multiway images signal and export from parallel a plurality of format conversion gained,
Described each scheduling aftertreatment: before image zoom, adopt at least three frame buffer districts to carry out picture signal when single screen image is handled and separate; Be specially one tunnel compound image signal is isolated the image that needs at the concatenation unit screen display of correspondence in a frame buffer district; If isolated image has several, then divide multichannel output.
Give multi-screen image transitions transmission processing device for this reason, comprise scheduling pretreating device, high-speed serial bus dispatching device, scheduling after-treatment device and screen splicing display device from front to back successively, wherein,
The scheduling pretreating device comprises successively that from front to back format conversion apparatus, frame rate conversion device and high speed serialization makeup put, and format conversion apparatus wherein has a plurality of of parallel connection,
The scheduling after-treatment device has a plurality of of the parallel connection corresponding with each concatenation unit screen difference; Each scheduling after-treatment device comprises from front to back successively to be separated high speed serialization device, single screen image treating apparatus and shows output unit; Single screen image treating apparatus wherein is used for need are carried out image zoom at the image of the concatenation unit screen display of correspondence
It is characterized in that,
Described scheduling pretreating device comprises: in a frame buffer district of frame rate conversion device, need are carried out the compound device of picture signal at same frame moment images displayed signal; With the device that is combined into multiway images signal one tunnel output from parallel a plurality of format conversion apparatus gained
Described each scheduling after-treatment device comprises: before image zoom, adopt at least three frame buffer districts to carry out the device that picture signal is separated when single screen image is handled; Be specially one tunnel compound image signal is isolated the image that needs at the concatenation unit screen display of correspondence in a frame buffer district; If isolated image has several, then divide the device of multichannel output.
Because in a frame buffer district of frame rate conversion to need same frame constantly the images displayed signal to carry out picture signal compound; Be combined into one tunnel output to multiway images signal from parallel a plurality of format conversion gained; Even so, also only need supporting one road high speed serialization circuit and one tunnel space switching port to get final product for the parallel receive multiple image.Correspondingly; Single screen image in each scheduling aftertreatment carries out picture signal when handling to be separated; One tunnel compound image signal is isolated the image that needs at the concatenation unit screen display of correspondence in a frame buffer district; If isolated image has several, then divide multichannel output, so each scheduling aftertreatment only needs supporting one the road to separate the high speed serialization circuit and get final product.It is thus clear that the required supporting systematic comparison of embodiment of the present invention is simple, has practiced thrift cost, produce debugging simply, installation and maintenance is convenient.
Description of drawings
Fig. 1 is the process flow diagram of prior art multi-screen splicing display process.
Fig. 2 is the process flow diagram of prior art scheduling pre-treatment.
Fig. 3 is at the frame synoptic diagram of display image 1 and image 2 constantly simultaneously on the giant-screen of being made up of four concatenation unit screen a, b, c, d.
Fig. 4 is the process flow diagram that the present invention dispatches pre-treatment.
Fig. 5 is a frame rate conversion principle schematic of the present invention.
Fig. 6 is the process flow diagram of one of them scheduling aftertreatment of prior art.
Fig. 7 is the process flow diagram of one of them scheduling aftertreatment of the present invention.
Fig. 8 is that one of them picture signal of the present invention is separated principle schematic.
Embodiment
Multi-screen image transitions method for transmission processing is dispatched pre-treatment, high-speed serial bus scheduling, scheduling aftertreatment and screen splicing successively and is shown that scheduling pre-treatment wherein has only one; The scheduling aftertreatment has 4, and correspondence is like four concatenation unit screen a, b, c, the d of the composition giant-screen of Fig. 3 respectively.
Scheduling pre-treatment such as Fig. 4, carry out format conversion, frame rate conversion and high speed serializationization successively: format conversion has parallel N, respectively the analog or digital picture signal of the N foreign format of being imported is converted to the digital signal of local form; Frame rate conversion is particularly like Fig. 5; Use at least three frame buffer districts that the frame rate conversion of signal is become local frame per second; In a frame buffer district, be combined into one tunnel output (only need being carried out compound getting final product in the N road picture signal that same frame shows constantly) to multiple signals from parallel a plurality of format conversion gained, particularly, when N road signal gets into; Can in N buffer, distinguish buffer memory; The multiframe signal on each road is written in three frame buffer districts by time slot in turn, makes the N road image that contains same frame in each frame buffer district, reads three images in the frame buffer district in turn with local frame per second then and is put into one tunnel output then of a buffer; Only need carry out the state that a high speed serialization operation becomes to be fit to carry out the high-speed serial bus transmission with this road compound image conversion of signals subsequently.
High speed serialization is separated in each scheduling aftertreatment successively, single screen image is handled and show output, and single screen image is wherein handled need are carried out image zoom at the image of the concatenation unit screen display of correspondence.A is an example with the scheduling aftertreatment, and like Fig. 7, it is separated high speed serialization and only needs one.Image zoom during single screen image is handled have with need at the corresponding respectively n that walks abreast of the n of corresponding concatenation unit screen display (n is the natural number that is not more than N) width of cloth image individual.The n of present embodiment carries out image overlay so its single screen image is handled also to the n width of cloth image that passes through image zoom greater than 1, shows output again.Before image zoom, adopting at least three frame buffer districts to carry out picture signal when single screen image is handled separates; As shown in Figure 8, particularly, when the road signal that contains the multiple image of same frame gets into; Can be in a buffer buffer memory; Multiframe signal is written in three frame buffer districts by time slot in turn, to each frame buffer district, wherein multiple image is read into the multichannel output then of a plurality of buffers respectively.Be specially one tunnel compound image signal is isolated the image that needs at the concatenation unit screen display of correspondence in a frame buffer district, isolated image has the n width of cloth in this example, so divide the output of n road.Scheduling aftertreatment b, c, d are the same with scheduling aftertreatment a principle, do not give unnecessary details.
Statement is during quantity, and " many " as herein described are meant more than or equal to two, and for example " a plurality of " are meant more than or equal to two, and " several " be meant more than or equal to two width of cloth, or the like.
All or part of step in the method that this paper mentions can be accomplished through computer program instructions control computer system, and computer program instructions is stored in the computer-readable recording medium.
Claims (2)
1. multi-screen image transitions method for transmission processing is dispatched pre-treatment, high-speed serial bus scheduling, scheduling aftertreatment and screen splicing successively and is shown, wherein,
Format conversion, frame rate conversion and high speed serializationization are carried out in the scheduling pre-treatment successively, and format conversion wherein has parallel a plurality of,
The scheduling aftertreatment have with each concatenation unit screen corresponding respectively walk abreast a plurality of; High speed serialization is separated in each scheduling aftertreatment successively, single screen image is handled and show output; Single screen image is wherein handled need is carried out image zoom at the image of the concatenation unit screen display of correspondence
It is characterized in that,
Described scheduling pre-treatment: in a frame buffer district of frame rate conversion to need same frame constantly the images displayed signal to carry out picture signal compound, be combined into one the tunnel to multiway images signal and export from parallel a plurality of format conversion gained,
Described each scheduling aftertreatment: before image zoom, adopt at least three frame buffer districts to carry out picture signal when single screen image is handled and separate; Be specially one tunnel compound image signal is isolated the image that needs at the concatenation unit screen display of correspondence in a frame buffer district; If isolated image has several, then divide multichannel output.
2. multi-screen image transitions transmission processing device comprises scheduling pretreating device, high-speed serial bus dispatching device, scheduling after-treatment device and screen splicing display device from front to back successively, wherein,
The scheduling pretreating device comprises successively that from front to back format conversion apparatus, frame rate conversion device and high speed serialization makeup put, and format conversion apparatus wherein has a plurality of of parallel connection,
The scheduling after-treatment device has a plurality of of the parallel connection corresponding with each concatenation unit screen difference; Each scheduling after-treatment device comprises from front to back successively to be separated high speed serialization device, single screen image treating apparatus and shows output unit; Single screen image treating apparatus wherein is used for need are carried out image zoom at the image of the concatenation unit screen display of correspondence
It is characterized in that,
Described scheduling pretreating device comprises: in a frame buffer district of frame rate conversion device, need are carried out the compound device of picture signal at same frame moment images displayed signal; With the device that is combined into multiway images signal one tunnel output from a plurality of format conversion apparatus gained of parallel connection
Described each scheduling after-treatment device comprises: before image zoom, adopt at least three frame buffer districts to carry out the device that picture signal is separated when single screen image is handled; Be specially one tunnel compound image signal is isolated the image that needs at the concatenation unit screen display of correspondence in a frame buffer district; If isolated image has several, then divide the device of multichannel output.
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| CN102065231B (en) * | 2010-11-26 | 2013-04-17 | 深圳中兴力维技术有限公司 | Multipath data fusion device, realization method thereof and multipath audio data processing system |
| CN102082951A (en) * | 2010-12-08 | 2011-06-01 | 广东威创视讯科技股份有限公司 | Transmission method and device and formatting method and device of image signals |
| CN102957875A (en) * | 2011-08-17 | 2013-03-06 | 中国移动通信集团公司 | Image processing method, device and system |
| KR101427552B1 (en) * | 2014-03-31 | 2014-08-07 | (주) 넥스트칩 | Method and apparatus for transmitting video siganl |
| CN105096799A (en) * | 2015-08-07 | 2015-11-25 | 深圳市康冠商用科技有限公司 | Display method and display system capable of carrying out independent adjustment on each image of multiple images |
| EP3331238A4 (en) * | 2015-08-12 | 2019-02-20 | Nanjing Jusha Display Technology Co., Ltd. | Image combination processing system arranged in display |
| WO2018045571A1 (en) | 2016-09-09 | 2018-03-15 | 深圳市大疆创新科技有限公司 | Image coding method and system |
| CN110203786A (en) * | 2019-06-05 | 2019-09-06 | 上海三菱电梯有限公司 | A kind of elevator display apparatus and lift facility |
| CN111638861B (en) * | 2020-06-10 | 2022-03-22 | 威创集团股份有限公司 | Splicing wall signal synchronization method and device |
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| CN1433222A (en) * | 2002-01-08 | 2003-07-30 | 华为技术有限公司 | Multiple-picture display method in video conference system |
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