CN104853115A - Quick switching method for multiple tracking videos - Google Patents
Quick switching method for multiple tracking videos Download PDFInfo
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- CN104853115A CN104853115A CN201410051226.4A CN201410051226A CN104853115A CN 104853115 A CN104853115 A CN 104853115A CN 201410051226 A CN201410051226 A CN 201410051226A CN 104853115 A CN104853115 A CN 104853115A
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Abstract
The invention provides a quick switching method for a multiple tracking videos. A tracked object (2) operates in a riverway (1). M image cameras are uniformly arranged above the riverway (1). P image cameras (2) in the m image cameras (3) synchronously transmit the photographed signal of the tracked object (2) to p channels of a personal computer PC (4). When the tracked object (2) operates to the part right below an n-th image camera (3), a signal which is transmitted from an (n-1)th image camera to the PC (4) is deleted, and a signal of an (n+p-1)th image camera (1) is transmitted to the channel of the PC (4), wherein the channel of the PC (4) corresponds with the deleted signal of the (n-1)th image camera. Through the quick switching method for the multiple tracking videos, the switching time for the videos can be greatly reduced. Shortening of the switching time can reduce the superposing range of two videos, namely the tracked object in the video can be effectively captured. Furthermore a requirement for the speed of the tracked object is expanded.
Description
Technical field
The present invention relates to a kind of changing method of video, particularly relate to a kind of multichannel and follow the tracks of video fast switch over method.
Background technology
In the experiment of navigation channel, ship model need be followed the tracks of on a large scale and obtain the information such as ship model running orbit, therefore, multiple cameras will be set up in usual experiment and follow the tracks of ship model, audio video synchronization is passed in PC, i.e. ship model tracking system, standard ship model tracking system is 16 video terminals, by 4 Channel Synchronous analog input card transmitting video datas.Due to current PC limited bandwidth, synchronization gain number of videos is restricted, and therefore, many employing video switch modes, ensure that ship model run location is effectively traced into.
Video switch part realizes audio video synchronization collection by employing 4 Channel Synchronous analog input card, and in the experiment of general navigation channel, needs to be greater than 4 video cameras.For ensure can synchronous acquisition scope maximum, Information Monitoring is not lost, then require follow the tracks of thing (ship model) enter in next range of video at every turn, then switch primary video.Such as, follow the tracks of after thing enters into the 2nd passage from the 1st passage, then by 1-4 video switch to 2-5 video, switch successively.As shown in Figure 1, the 1st switching is by No. 2 video switchs to the 1st passage, and No. 3 video switchs are to the 2nd passage, and No. 4 video switchs are to the 3rd passage, and No. 5 video switchs are to the 4th passage, and each switching all needs 4 times.
Due in such scheme, each switching needs 4 video switchs, a large amount of time is used on video switch, Information Monitoring may be caused to lose, follow the tracks of discontinuous, that thing (ship model) is followed the tracks of in restriction travel speed etc.For long video switch, the present invention not increase premised on any hardware cost, a large amount of shorten switching time for the purpose of, the above-mentioned defect of quasi-complement.
Summary of the invention
The object of the invention is to solve existing switching times too much, cause Information Monitoring to be lost, follow the tracks of the problems such as discontinuous, to limit tracking thing (ship model) travel speed, and providing a kind of multichannel to follow the tracks of video fast switch over method, it can reduce switching times to reduce the overall time of switching.
In order to complete object of the present invention, the present invention by the following technical solutions:
A kind of multichannel of the present invention follows the tracks of video fast switch over method, tracking thing is run in river course, m video camera is set up equably above river course, the tracking thing signal synchronous transmission that continuous p video camera is taken in m video camera is to the p of a PC channel, and it is as follows that its multichannel follows the tracks of fast switch over method:
(1) take with p video camera above river course simultaneously run tracking thing in river course, along with tracking thing is along river course from first video camera to the running of m video camera, when following the tracks of thing and running to immediately below first video camera, first video camera to the signal of p video camera is transferred to first to p channel of PC respectively;
(2) when following the tracks of thing and running to immediately below the n-th video camera, delete (n-1)th video camera and flow to PC signal, then the n-th+p-1 camera signal is transferred in the channel of the PC corresponding to (n-1)th video camera of above-mentioned deletion;
Wherein: m is greater than p, m is the number of video camera, and p is the number of the video camera simultaneously taken and the channel number of PC, and this kind of multichannel of the present invention follows the tracks of video fast switch over method, wherein: the number p of described video camera is 3-6;
A kind of multichannel of the present invention follows the tracks of video fast switch over method, wherein: the channel number p of described PC is 3-6.
A kind of multichannel of the present invention follows the tracks of video fast switch over method, wherein: the number of described video camera is 8-30.
This programme, based on the video switch mode of ship model tracking system, proposes a kind of new video switch mode.Switching time can be shortened to original p/mono-.According to before video switch with video switch after the feature of video number, namely the video of p-1 passage number is had to be consistent feature in p passage, this programme adopts the passage retaining consistent video number constant, only change the channel number of minimum video, namely the switching of p passage only needs the switching of a passage, and switching time is tapered to original p/mono-.After switching, need software to the rearrangement of hardware exchange order, ensure that subsequent software correctly extracts ship model information.By the present invention, the switching time of shortening video that can be a large amount of.The shortening of switching time, can reduce the superposition scope of two videos, effectively can catch the tracking thing under video, meanwhile, widens the rate request to following the tracks of thing.
Accompanying drawing explanation
Fig. 1 is that a kind of multichannel of the present invention is followed the tracks of in video fast switch over method, when tracking thing is immediately below first video camera, and the schematic diagram of PC and video camera annexation;
Fig. 2 is that a kind of multichannel of the present invention is followed the tracks of in video fast switch over method, when tracking thing is immediately below second video camera, and the schematic diagram of PC and video camera annexation;
Fig. 3 is that a kind of multichannel of the present invention is followed the tracks of in video fast switch over method, when tracking thing is immediately below the 3rd video camera, and the schematic diagram of PC and video camera annexation;
Fig. 4 is in the prior art, at tracking video switching method, and the schematic diagram of PC and video camera annexation.
In Fig. 1 to Fig. 4, label 1 is river course; Label 2 is for following the tracks of thing; Label 3 is video camera; Label 4 is PC.
Embodiment
As shown in Figure 1 to Figure 3, tracking thing 2 is run in river course 1, above river course 1, set up m video camera 3 equably, the tracking thing 2 signal synchronous transmission that continuous p video camera 2 is taken in m video camera 3 is to the p of PC 4 channel, and it is as follows that its multichannel follows the tracks of fast switch over method:
(1) take with p video camera 3 above river course simultaneously run tracking thing 2 in river course 1, along with tracking thing 2 is along river course 1 from the running of first video camera 3 to the m video camera 3, when following the tracks of thing 2 and running to immediately below first video camera 3, first video camera 3 to the signal of p video camera 3 is transferred to first to p channel of PC 4 respectively;
(2) when following the tracks of thing 2 and running to immediately below the n-th video camera 3, deletes (n-1)th video camera and flows to PC 4 signal, then by individual for the n-th+p-1 video camera 1 Signal transmissions to above-mentioned deletion (n-1)th video camera corresponding to PC 4 channel in;
Wherein: m is greater than p, m is the number of video camera 3, and p is the number of the video camera 3 simultaneously taken and the channel number of PC, and n follows the tracks of the ordinal number that thing 2 runs to video camera 3, and n is the natural number of 1 to m.
The number p of video camera 3 and the channel number of PC 4 are 3-6, and the number of video camera 3 is 8-30.
Multichannel is followed the tracks of video fast switch over method and is adopted the passage retaining consistent video number constant, only changes the channel number of minimum video.As shown in Figures 2 and 3, m is the ship model tracking system of 16 videos, by 4 synchronous acquisition passages, and synchronous acquisition 4 videos.As shown in Figure 2, when following the tracks of thing 2(ship model) when entering the field range of No. 2 videos by No. 1 video, No. 5 videos are switched to passage corresponding to No. 1 video, retain 2-4 video, namely complete the 1st switching; As shown in Figure 3, when following the tracks of thing 2(ship model) when entering the field range of No. 3 videos by No. 2 videos, by No. 6 video switchs to passage corresponding to No. 2 videos, retain 3-5 video, namely complete the 2nd switching; According to this switching mode, enter within the scope of No. 13 video field until follow the tracks of thing, complete one group of switching.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention is see claim, and when without prejudice to spirit of the present invention, the present invention can do any type of amendment.
Claims (4)
1. a multichannel follows the tracks of video fast switch over method, tracking thing (2) is run in river course (1), m video camera (3) is set up equably in the top of river course (1), tracking thing (2) the signal synchronous transmission that continuous p video camera (2) is taken in m video camera (3) is to p channel of PC (4), and it is as follows that its multichannel follows the tracks of fast switch over method:
A. take with p video camera (3) above river course simultaneously in river course (1), run tracking thing (2), along with following the tracks of thing (2) along river course (1) from first video camera (3) to the running of m video camera (3), when following the tracks of thing (2) and running to immediately below first video camera (3), first video camera (3) to the signal of p video camera (3) is transferred to first to p channel of PC (4) respectively;
B. when following the tracks of thing (2) and running to immediately below the n-th video camera (3), delete (n-1)th video camera and flow to PC (4) signal, then by the n-th+p-1 video camera (1) Signal transmissions to above-mentioned deletion (n-1)th video camera corresponding to PC (4) channel in;
Wherein: m is greater than p, m is the number of video camera (3), and p is the number of video camera (3) and the channel number of PC of taking simultaneously, and n follows the tracks of the ordinal number that thing (2) runs to video camera (3), and n is the natural number of 1 to m.
2. multichannel as claimed in claim 1 follows the tracks of video fast switch over method, it is characterized in that: the number p of described video camera (3) is 3-6.
3. multichannel as claimed in claim 1 follows the tracks of video fast switch over method, it is characterized in that: the channel number p of described PC (4) is 3-6.
4. multichannel as claimed in claim 1 follows the tracks of video fast switch over method, it is characterized in that: the number of described video camera (3) is 8-30.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410051226.4A CN104853115B (en) | 2014-02-14 | 2014-02-14 | Multichannel tracks video fast switch over method |
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| CN201410051226.4A CN104853115B (en) | 2014-02-14 | 2014-02-14 | Multichannel tracks video fast switch over method |
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| CN104853115A true CN104853115A (en) | 2015-08-19 |
| CN104853115B CN104853115B (en) | 2017-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712633A (en) * | 2018-05-18 | 2018-10-26 | 中船重工鹏力（南京）大气海洋信息系统有限公司 | A kind of multichannel CCTV while the monitoring method to ship relay tracking |
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| CN101694751A (en) * | 2009-09-28 | 2010-04-14 | 大连海事大学 | Monitoring system and monitoring method for ships in typical sections of Three Gorges Reservoir |
| US20100097472A1 (en) * | 2008-10-21 | 2010-04-22 | Honeywell International Inc. | Method of efficient camera control and hand over in surveillance management |
| CN102853821A (en) * | 2012-08-31 | 2013-01-02 | 浙江中是科技有限公司 | Ship GPS positioning and checking method and ship GPS interactive system |
| CN102968625A (en) * | 2012-12-14 | 2013-03-13 | 南京思创信息技术有限公司 | Ship distinguishing and tracking method based on trail |
| CN102982704A (en) * | 2012-12-12 | 2013-03-20 | 长沙理工大学 | Method for reproducing navigation process of navigable ship model experiment |
| CN103051830A (en) * | 2012-12-31 | 2013-04-17 | 北京中科大洋科技发展股份有限公司 | System and method for multi-angle real-time rebroadcasting of shot targets |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100097472A1 (en) * | 2008-10-21 | 2010-04-22 | Honeywell International Inc. | Method of efficient camera control and hand over in surveillance management |
| CN101694751A (en) * | 2009-09-28 | 2010-04-14 | 大连海事大学 | Monitoring system and monitoring method for ships in typical sections of Three Gorges Reservoir |
| CN102853821A (en) * | 2012-08-31 | 2013-01-02 | 浙江中是科技有限公司 | Ship GPS positioning and checking method and ship GPS interactive system |
| CN102982704A (en) * | 2012-12-12 | 2013-03-20 | 长沙理工大学 | Method for reproducing navigation process of navigable ship model experiment |
| CN102968625A (en) * | 2012-12-14 | 2013-03-13 | 南京思创信息技术有限公司 | Ship distinguishing and tracking method based on trail |
| CN103051830A (en) * | 2012-12-31 | 2013-04-17 | 北京中科大洋科技发展股份有限公司 | System and method for multi-angle real-time rebroadcasting of shot targets |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108712633A (en) * | 2018-05-18 | 2018-10-26 | 中船重工鹏力（南京）大气海洋信息系统有限公司 | A kind of multichannel CCTV while the monitoring method to ship relay tracking |
| CN108712633B (en) * | 2018-05-18 | 2020-05-05 | 中船重工鹏力（南京）大气海洋信息系统有限公司 | Monitoring method for simultaneously tracking ship relay by multi-channel CCTV |
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Denomination of invention: Fast switching method of multi-channel tracking video Effective date of registration: 20210715 Granted publication date: 20171103 Pledgee: Beijing first financing Company limited by guarantee Pledgor: BEIJING SINFOTEK SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2021990000606 |
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