CN201226563Y - Picture-divided video input apparatus - Google Patents
Picture-divided video input apparatus Download PDFInfo
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- CN201226563Y CN201226563Y CNU2008200095980U CN200820009598U CN201226563Y CN 201226563 Y CN201226563 Y CN 201226563Y CN U2008200095980 U CNU2008200095980 U CN U2008200095980U CN 200820009598 U CN200820009598 U CN 200820009598U CN 201226563 Y CN201226563 Y CN 201226563Y
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Abstract
The utility model relates to a video inputting device for split image, which comprises four split image parts, a video processing unit and DRAM. Four paths of input digital video signals acquire each path of digital video data in the four split image parts in a single-field mode, the horizontal resolution of the four images are then respectively decreased once to a GIF format, and the four paths of images are combined into one standard digital video image data. The video processing unit controls the DRAM, and stores each path of data corresponding to the input video signals in the combined video data. The video processing unit acquires each path of data from the storage according to different addresses, independently processes and compresses each path of data, and then outputs four data flows corresponding to the input video signals. The video inputting device eliminates various kinds of interference, ensures image definition, and simultaneously reduces the cost by simplified processing.
Description
Technical field
The utility model relates to device for processing digital video, more specifically, relates to the video input device of the picture segmentation of multipath digital video signal.
Background technology
The multi-channel video treatment technology is widely used in fields such as video monitoring, long-distance education, remote automation management, and industries such as bank, traffic, electric power, telecommunications have been extensive use of the device that adopts the multi-channel video treatment technology.Begun at present demand, finished functions such as video compression, image recognition, video storage and remote transmission according to different application.
The normal video image through resolution after the digitlization is: PAL 720 * 576, NTSC720 * 480 or PAL 768 * 576, and NTSC 640 * 480, are PAL352 * 288 or 384 * 288 for CIF resolution, NTSC 352 * 240 or 320 * 240.Common video processing unit can insert the normal video image and handle, and has following two kinds for the multipath digital video processing method:
1, each road video adopts an independent cover treatment circuit, and Fig. 1 represents the formation block diagram of this kind treatment circuit.
Video processing unit is dsp chip or video dedicated processes chip, and normal video is reduced into the CIF form in video processing unit, carries out various video images then and handles.This mode is handled shortcoming all needs independent video processing unit for each road, system complexity height, cost height.
2, adopt four picture synthetic technologys, then composograph is handled, Fig. 2 represents the formation block diagram of this kind treatment circuit.
The normal video image is reduced into the CIF form in four picture parts, then four CIF pictures are synthesized a standard picture, is input to video processing unit and carries out various video images processing.This processing mode shortcoming for to Video processing the time because in the composite video image four road images do not have correlation, cause the video image difficult treatment, reduced image processing effect.Simultaneously since four road videos in a data flow, strengthen for the processing complexity of independent one road video.
Summary of the invention
The technical problems to be solved in the utility model is the shortcoming that exists in the present technology, under the prerequisite that guarantees picture quality, adopt four picture synthetic technologys, four road video images are synthesized a video image, in video processing unit, be separated into four video flowings then, four video flowings are handled respectively.
The technical scheme that the utility model adopted is:
The video input device of this picture segmentation comprises four picture segmentation parts, video processing unit, synthesizer, reaches the DRAM that inserts described parts and unit;
Described video processing unit is dsp chip or video dedicated processes chip;
Synthesizer receives four way word vision signals, and four pictures are synthesized one tunnel vision signal; It is characterized in that: also comprise:
Sampling apparatus, according to the described DRAM of picture segmentation component controls, to obtain described each digital of digital video data storage in the single game mode, respectively four picture horizontal resolutions be dwindled one times then, more described four pictures be synthesized a standard digital vedio data for the CIF form;
Separating and treating apparatus is controlled described DRAM according to described video processing unit, receives the above-mentioned synthetic video data of storage;
Described video processing unit is got each road video data in described each road by different addresses, and described each circuit-switched data is handled separately, compressed, and exports four data flow corresponding to the vision signal of input afterwards.
Technique effect of the present utility model is: owing to adopted the single game sample mode, guaranteed picture quality, in video processing unit, adopt subregion, make each road make Video processing respectively, simplified the Video processing of multichannel CIF form, four road video images back synchronously are synthetic, eliminated various crosstalking, and guaranteed the definition of image; Device of the present utility model can reduce cost under the prerequisite that guarantees picture quality.
Description of drawings
Fig. 1 is that first kind of multi-channel video handled prior art formation block diagram.
Fig. 2 is that second kind of multi-channel video handled prior art formation block diagram.
Fig. 3 is the formation block diagram of the utility model embodiment.
Fig. 4 is a video processing unit workflow schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Fig. 3 is that the utility model embodiment totally constitutes block diagram.This is the Audio and Video Processing Card of a pci interface.
Four road analog video signals are directly inputted to four picture segmentation parts of integrated A/D function, this example adopts the chip of model AP-5200, this chip comprises four A/D converters and one four picture segmentation parts, four road analog videos are through being converted to four way word vision signals, and every way word image leaves in the DRAM memory; By the data among the four picture segmentation component controls DRAM, adopt the single game mode to every road image data samples, respectively the picture horizontal resolution of four circuit-switched data being dwindled one times then becomes the CIF form, synchronously four road images of different clocks is synthesized a standard picture through multichannel and is exported by described partition member.
Separating and treating apparatus is controlled described DRAM according to video processing unit, receives, stores an above-mentioned synthetic video data, and described in this example video processing unit adopts the chip of PNX-1500 model, and this is a kind of dsp chip.
Described video processing unit is got each road video data in the described synthetic video data by different addresses, and described each circuit-switched data is handled separately, compressed, and exports four data flow corresponding to the vision signal of input afterwards.The corresponding work schematic flow sheet is seen Fig. 4.
When input had simulated audio signal simultaneously, simulated audio signal was converted to four way word audio signals by A/D.All digital video and audio signals are input to video processing unit, voice data leaves in four corresponding districts with different addresses, video processing unit passes through the difference of zones of different address equally, can directly get the independent voice data in each road, to each road voice data individual processing, compression, each road compression processing rear video and audio sync synthesize a data flow on this road at last then.Four road independent sound, video generated datas are exported by processing unit, are sent to main frame through pci interface.
In the occasion of an Embedded video processing module, independent sound, the video generated data in each Lu Gongsi road is sent to master control unit at last.Master control unit is the core control part of module, finishes the initialization and the work control of whole module, deposits data in hard disk by ide interface as required behind the receiving compressed data or sends on the network by network interface.Master control unit is finished and is shown control and input/output interface control simultaneously.
Claims (3)
1, the video input device of picture segmentation comprises four picture segmentation parts, video processing unit, synthesizer, reaches the DRAM that inserts described parts and unit;
Described video processing unit is dsp chip or video dedicated processes chip;
Synthesizer receives four way word vision signals, and four pictures are synthesized one tunnel vision signal; It is characterized in that: also comprise:
Sampling apparatus, according to the described DRAM of picture segmentation component controls, to obtain described each digital of digital video data storage in the single game mode, respectively four picture horizontal resolutions be dwindled one times then, more described four pictures be synthesized a standard digital vedio data for the CIF form;
Separating and treating apparatus is controlled described DRAM according to described video processing unit, receives the above-mentioned synthetic video data of storage;
Described video processing unit is got each road video data in described each road by different addresses, and described each circuit-switched data is handled separately, compressed, and exports four data flow corresponding to the vision signal of input afterwards.
2, the video input device of picture segmentation according to claim 1 is characterized in that: input signal also comprises four audio signals corresponding to four vision signals;
Described four tunnel audio signals are converted to four way word audio signals by A/D, are input to described video processing unit, distinguish described each the road audio signal of stored with different addresses corresponding four of the digital video signal of described correspondence;
Described video processing unit is got each road voice data in described each road by different addresses, described each circuit-switched data is handled separately, compressed, the data flow that rear video and audio sync synthesize this road is handled in the compression of each road, exports four generated data streams corresponding to the looking of input, audio signal afterwards.
3, the video input device of picture segmentation according to claim 1 and 2 is characterized in that: four picture segmentation parts adopt AP-5200, and video processing unit adopts PNX-1500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200095980U CN201226563Y (en) | 2008-05-26 | 2008-05-26 | Picture-divided video input apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200095980U CN201226563Y (en) | 2008-05-26 | 2008-05-26 | Picture-divided video input apparatus |
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| CN201226563Y true CN201226563Y (en) | 2009-04-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778199A (en) * | 2010-02-09 | 2010-07-14 | 深圳市唯奥视讯技术有限公司 | Realization method for synthesizing multi-path high-definition video image picture |
| CN102771119A (en) * | 2009-12-22 | 2012-11-07 | 思杰系统有限公司 | Systems and methods for video-aware screen capture and compression |
| CN103797805A (en) * | 2012-08-07 | 2014-05-14 | 英特尔公司 | Media encoding using changed regions |
| CN108063976A (en) * | 2017-11-20 | 2018-05-22 | 北京奇艺世纪科技有限公司 | A kind of method for processing video frequency and device |
| CN111372011A (en) * | 2020-04-13 | 2020-07-03 | 杭州友勤信息技术有限公司 | KVM high definition video decollator |
-
2008
- 2008-05-26 CN CNU2008200095980U patent/CN201226563Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771119A (en) * | 2009-12-22 | 2012-11-07 | 思杰系统有限公司 | Systems and methods for video-aware screen capture and compression |
| CN102771119B (en) * | 2009-12-22 | 2015-07-22 | 思杰系统有限公司 | Systems and methods for video-aware screen capture and compression |
| CN101778199A (en) * | 2010-02-09 | 2010-07-14 | 深圳市唯奥视讯技术有限公司 | Realization method for synthesizing multi-path high-definition video image picture |
| CN101778199B (en) * | 2010-02-09 | 2014-02-19 | 深圳市唯奥视讯技术有限公司 | Realization method for synthesizing multi-path high-definition video image picture |
| CN103797805A (en) * | 2012-08-07 | 2014-05-14 | 英特尔公司 | Media encoding using changed regions |
| CN108063976A (en) * | 2017-11-20 | 2018-05-22 | 北京奇艺世纪科技有限公司 | A kind of method for processing video frequency and device |
| CN111372011A (en) * | 2020-04-13 | 2020-07-03 | 杭州友勤信息技术有限公司 | KVM high definition video decollator |
| CN111372011B (en) * | 2020-04-13 | 2022-07-22 | 杭州友勤信息技术有限公司 | KVM high definition video decollator |
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Granted publication date: 20090422 |
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| CX01 | Expiry of patent term |