CN103037169A - Picture split joint combination method of embedded hard disk video - Google Patents
Picture split joint combination method of embedded hard disk video Download PDFInfo
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- CN103037169A CN103037169A CN201210530544XA CN201210530544A CN103037169A CN 103037169 A CN103037169 A CN 103037169A CN 201210530544X A CN201210530544X A CN 201210530544XA CN 201210530544 A CN201210530544 A CN 201210530544A CN 103037169 A CN103037169 A CN 103037169A
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Abstract
According to a picture split joint combination method of an embedded hard disk video, a virtual combination channel is established in the embedded hard disk video. The number of the channel is n+1. The virtual combination channel is divided into a virtual channel 1, a virtual channel 2, a virtual channel 3 and a virtual channel 4. Each virtual channel corresponds to a picture. The number of the pictures is four. A picture formed by combination of the four pictures is as an n+1th channel video. The virtual combination channel is used for achieving split joint combination of the pictures and a coding function. The virtual combination channel further comprises a virtual video output device, a virtual video input channel and a video coding channel. By combination split joint and coding of the multiple pictures, synchronism of each picture is strictly guaranteed. Manipulation can be prevented. The picture split joint combination method of the embedded hard disk video is suitable for a number of specific occasions where the pictures are needed to be as evidences. The picture split joint combination technology fully utilizes a character of a video coding chip, additional split joint circuits are not needed, and hardware cost can be saved.
Description
Technical field
The present invention relates to the technical field of video monitoring, is a kind of synthetic method of picture splicing of built-in hard disk video tape recorder specifically.
Background technology
Built-in hard disk video tape recorder equipment generally is divided into built-in hard disk video tape recorder DVR, embedded type network video video tape recorder NVR and mixed type DVR.
Built-in hard disk video tape recorder DVR be a kind of can the connecting analog video camera, its vision signal of analog acquisition such as ball machine carries out the embedded type network video equipment that local output playback and the local storage of Video coding, network real-time video are propagated.
Embedded type network video video tape recorder NVR a kind ofly can connect and control network of network video camera IPC front end, the video data that IPC is transmitted carries out this locality storage and forwarded, and decoding shows the equipment of the real time video signals that IPC gathers at the output interface of NVR equipment.
Embedded mixed type DVR is all built-in hard disk video tape recorder equipment of embedded digital video recorder (DVR) and NVR function.
The video input of embedded digital video recorder (DVR), NVR, mixed type DVR comprises the analog video input of CVBS interface and the digital video input that sends by network.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of synthetic method of picture splicing of built-in hard disk video tape recorder.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The method that the picture splicing of built-in hard disk video tape recorder of the present invention is synthetic, at dummy synthesis passage of the inner establishment of built-in hard disk video tape recorder, channel number is n+1, above-mentioned dummy synthesis passage is divided into again tunnel 1 to tunnel 4, the corresponding picture of each tunnel, totally four pictures, the picture after synthetic by above-mentioned four pictures is as the n+1 road video of built-in hard disk video tape recorder; The dummy synthesis passage comprises again virtual video output equipment, virtual video input channel and Video coding passage, according to predefined picture layout and size, the video that collects is outputed on the virtual video output equipment, the virtual video output equipment only carries out the picture splicing operation, and the video output interface with reality is not corresponding; The virtual video input channel only receives the image on the virtual video output equipment, and is not corresponding with any one actual analog channel or digital channel; Create the Video coding passage in the built-in hard disk video tape recorder, the Video coding passage is connected with the virtual video input channel, the video that the virtual video input channel collects is encoded, and built-in hard disk video tape recorder is stored and Internet Transmission the data after encoding.
The present invention can also adopt following technical measures:
The virtual video output equipment adds according to demand and shows any practical video input passage, simultaneously display position and the demonstration size of video is regulated.
When the video input that collects is the digital video input, then at first this digital video is carried out the video decode operation, decoded initial data is outputed on the virtual video output equipment.
Advantage and good effect that the present invention has are:
In the method that the picture splicing of built-in hard disk video tape recorder of the present invention synthesizes, outside the video input passage of reality, provide an extra dummy synthesis passage, this dummy synthesis passage is used for realizing the synthetic encoding function that reaches of splicing of picture.By continuous presence splicing coding, synchronism that can each picture of strict guarantee can be anti-tamper, is applicable to the specific occasion that some need to use as evidence.Picture splicing synthetic technology of the present invention takes full advantage of the characteristic of video coding chip, and need not increases extra splicing circuit, can save hardware cost.
Description of drawings
Fig. 1 is the schematic diagram of dummy synthesis passage in the synthetic method of the picture splicing of built-in hard disk video tape recorder of the present invention;
Fig. 2 is the signal transmission schematic diagram of the synthetic method of the picture splicing of built-in hard disk video tape recorder of the present invention.
Embodiment
The present invention will be described in detail referring to drawings and Examples.
Fig. 1 is the schematic diagram of dummy synthesis passage in the synthetic method of the picture splicing of built-in hard disk video tape recorder of the present invention; Fig. 2 is the signal transmission schematic diagram of the synthetic method of the picture splicing of built-in hard disk video tape recorder of the present invention.
As depicted in figs. 1 and 2, the method that the picture splicing of built-in hard disk video tape recorder of the present invention is synthetic, at dummy synthesis passage of the inner establishment of built-in hard disk video tape recorder, channel number is n+1, above-mentioned dummy synthesis passage is divided into again tunnel 1 to tunnel 4, the corresponding picture of each tunnel, totally four pictures, the picture after synthetic by above-mentioned four pictures is as the n+1 road video of built-in hard disk video tape recorder; The dummy synthesis passage comprises again virtual video output equipment, virtual video input channel and Video coding passage, according to predefined picture layout and size, the video that collects is outputed on the virtual video output equipment, the virtual video output equipment only carries out the picture splicing operation, and the video output interface with reality is not corresponding; The virtual video input channel only receives the image on the virtual video output equipment, and is not corresponding with any one actual analog channel or digital channel; Create the Video coding passage in the built-in hard disk video tape recorder, the Video coding passage is connected with the virtual video input channel, the video that the virtual video input channel collects is encoded, and built-in hard disk video tape recorder is stored and Internet Transmission the data after encoding.
The unifications such as picture output device CVBS, the VGA of virtual video output equipment and reality, HDMI manage, and the user can see this equipment in preview arranges the interface.The virtual video output equipment adds according to demand and shows any practical video input passage, simultaneously display position and the demonstration size of video is regulated.
Video coding passage and common Video coding passage unification manage, and the user can arrange the video size of this Video coding passage, the attributes such as the frame per second of coding, code check, character stack, mobile detection alert.
When the video input that collects is the digital video input, then at first this digital video is carried out the video decode operation, decoded initial data is outputed on the virtual video output equipment.
Built-in hard disk video tape recorder inside can create regularly carrying out of a task, image on this task timing acquiring virtual video output equipment, and this image outputed to the virtual video input channel, the Video coding passage that is associated with the virtual video input channel can automatically perform encoding operation, thereby has realized the composite coding of many pictures.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention with preferred embodiment openly as above, yet, be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (3)
1. the synthetic method of the picture splicing of a built-in hard disk video tape recorder, it is characterized in that: at dummy synthesis passage of the inner establishment of built-in hard disk video tape recorder, channel number is n+1, above-mentioned dummy synthesis passage is divided into again tunnel 1 to tunnel 4, the corresponding picture of each tunnel, totally four pictures, the picture after synthetic by above-mentioned four pictures is as the n+1 road video of built-in hard disk video tape recorder; The dummy synthesis passage comprises again virtual video output equipment, virtual video input channel and Video coding passage, according to predefined picture layout and size, the video that collects is outputed on the virtual video output equipment, the virtual video output equipment only carries out the picture splicing operation, and the video output interface with reality is not corresponding; The virtual video input channel only receives the image on the virtual video output equipment, and is not corresponding with any one actual analog channel or digital channel; Create the Video coding passage in the built-in hard disk video tape recorder, the Video coding passage is connected with the virtual video input channel, the video that the virtual video input channel collects is encoded, and built-in hard disk video tape recorder is stored and Internet Transmission the data after encoding.
2. the synthetic method of the picture splicing of built-in hard disk video tape recorder according to claim 1, it is characterized in that: the virtual video output equipment adds according to demand and shows any practical video input passage, simultaneously display position and the demonstration size of video is regulated.
3. the synthetic method of the picture splicing of built-in hard disk video tape recorder according to claim 2, it is characterized in that: when the video input that collects is the digital video input, then at first this digital video is carried out the video decode operation, decoded initial data is outputed on the virtual video output equipment.
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| CN201210530544XA CN103037169A (en) | 2012-12-11 | 2012-12-11 | Picture split joint combination method of embedded hard disk video |
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| CN201210530544XA CN103037169A (en) | 2012-12-11 | 2012-12-11 | Picture split joint combination method of embedded hard disk video |
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Cited By (6)
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| CN103248880A (en) * | 2013-05-29 | 2013-08-14 | 常熟市广播电视总台 | Multi-loop video decoding system and multi-loop video decoding method based on set top box |
| CN103414883A (en) * | 2013-08-20 | 2013-11-27 | 浙江宇视科技有限公司 | Customized service method and customized playback device of video streams |
| CN103647906A (en) * | 2013-11-15 | 2014-03-19 | 天津天地伟业数码科技有限公司 | Multipath audio and video synthetic method for embedded hard-disk video recorder |
| CN103873775A (en) * | 2014-03-24 | 2014-06-18 | 联想(北京)有限公司 | Electronic device and information processing method |
| CN109040694A (en) * | 2018-09-01 | 2018-12-18 | 曾桂凤 | For video multiplex image synchronous, tamper resistant systems and its method |
| CN110312158A (en) * | 2018-03-27 | 2019-10-08 | 北京市博汇科技股份有限公司 | A kind of monitoring method and device of embedded more pictures |
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| CN109040694B (en) * | 2018-09-01 | 2021-01-12 | 曾桂凤 | System and method for synchronizing and preventing multiple video images from being tampered |
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Application publication date: 20130410 |