CN107896315B - Multisensor video fusion system and method based on A-SMGCS - Google Patents
Multisensor video fusion system and method based on A-SMGCS Download PDFInfo
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- CN107896315B CN107896315B CN201711176684.0A CN201711176684A CN107896315B CN 107896315 B CN107896315 B CN 107896315B CN 201711176684 A CN201711176684 A CN 201711176684A CN 107896315 B CN107896315 B CN 107896315B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Image Processing (AREA)
Abstract
The present invention provides a kind of Multisensor video fusion system and method based on A-SMGCS, wherein method includes the practical GPS coordinate for obtaining target；According to the practical GPS coordinate of target, and according to the mapping table of the GPS coordinate and pixel coordinate that construct in advance, obtain pixel coordinate position of the target in video image；It is shown according to real-time video of the pixel coordinate position to target.Video fusion method provided by the invention based on A-SMGCS, after the target data for receiving operator extracts request, the practical GPS coordinate of target can be obtained, and according to the practical GPS coordinate of target, and the mapping table according to the GPS coordinate and pixel coordinate that construct in advance, obtain pixel coordinate position of the target in video image；It is shown further according to real-time video of the pixel coordinate position to target, the display of A-SMGCS can be made more vivid, intuitive, can satisfy demand of the system to future airport.
Description
Technical field
The present invention relates to scene monitoring technical field more particularly to a kind of Multisensor video fusion systems and side based on A-SMGCS
Method.
Background technique
Advanced scene activity guides control system (Advanced Surface Movement Guidance Control
System, A-SMGCS), International Civil Aviation Organization is to it is defined as: in all meteorological conditions for meeting visibility at the airport Operation class
Under, be able to maintain the movement rate of announcement for aircraft and vehicle and keep desired safety simultaneously and it is provided monitoring,
The system of routing and guidance to be controlled.The development of A-SMGCS system is to improve Airport Operation efficiency, guarantee operation peace
Entirely, meet future airport operation demand.The big critical function of the one of A-SMGCS system is fusion Automatic dependent surveillance broadcast
(Automatic Dependent Surveillance-Broadcast, ADS-B), multipoint positioning, scene surveillance radar etc. are passed
The data of sensor, detection and positioning all targets of scene, all aircrafts of automatic identification and vehicle.
It is all to show on map in A-SMGCS with jump when the display end of existing A-SMGCS shows target
Luminous point indicates the target oriented, which cannot image distinguish aircraft, vehicle, and the current situation around target
It open-and-shut cannot portray.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Multisensor video fusion system and method based on A-SMGCS, with gram
Taking the prior art cannot be to the defect that target is intuitively shown.
In order to solve the above technical problems, present invention provide the technical scheme that
On the one hand, the present invention provides a kind of Multisensor video fusion system based on A-SMGCS, including, camera shooting unit, server,
A-SMGCS processor, A-SMGCS display end map converting apparatus；
Server is connected to camera shooting unit, A-SMGCS processor, and A-SMGCS display end maps converting apparatus；Its
In,
A-SMGCS display end has the displaying block of the first quantity, and images the video camera in unit including the first quantity, and one
The corresponding video camera of a displaying block；
Mapping converting apparatus is an integrated chip, for uniquely being mapped GPS coordinate and pixel coordinate.
Further, the connection carrier of server and A-SMGCS display end is cable or internet.
Multisensor video fusion system provided by the invention based on A-SMGCS, camera shooting unit are taken the photograph for obtaining real time video data
A displaying block in the corresponding A-SMGCS display end of each of camera group video camera a, that is, displaying block is corresponding aobvious
Show the content of shooting of a video camera；A-SMGCS processor is for merging the sensing such as ADS-B, multipoint positioning, scene surveillance radar
The data of device；Mapping converting apparatus is an integrated chip, for uniquely being mapped GPS coordinate and image coordinate, is realized each
Video camera and A-SMGCS show the position mapping relations of map；Server stores A-SMGCS for storing camera shooting unit data
The mapping relations data in data and storage mapping converting apparatus in processor, and receive the target data of operator
Request is extracted, for example, when it is aircraft that certain operator, which requests the target extracted, the A-SMGCS that shows on A-SMGCS display end
The real-time video of aircraft will be shown on display map.
That is, the Multisensor video fusion system provided by the invention based on A-SMGCS, can directly display area video
Corresponding target position on map is shown to A-SMGCS, and the display of A-SMGCS can be made more vivid, intuitive, can satisfy and be
The demand united to future airport.
On the other hand, the video fusion method based on A-SMGCS that the present invention also provides a kind of, including,
Obtain the practical GPS coordinate of target；
According to the practical GPS coordinate of target, and the mapping relations according to the GPS coordinate and pixel coordinate that construct in advance
Table obtains pixel coordinate position of the target in video image；
It is shown according to real-time video of the pixel coordinate position to target.
Further, the practical GPS coordinate of target is obtained, specifically,
The practical GPS coordinate of the target obtained by A-SMGCS processor is directly transferred from server.
Further, the construction step of the mapping table of GPS coordinate and pixel coordinate specifically includes,
For each video camera, at least four calibration points in selected video image picture, and write down each calibration point
GPS coordinate and pixel coordinate, wherein any three calibration points are not conllinear；
Calculate the homography matrix of the GPS coordinate and pixel coordinate in video image plane；
The set of the corresponding homography matrix of all video cameras is determined as to the mapping table of GPS coordinate and pixel coordinate.
Further, the quantity of calibration point is more, and the accuracy rate of homography matrix is higher.
It further, further include the display window of A-SMGCS being divided into the displaying block of the first quantity, and one shows
Block corresponds to a video camera.
Further, it is shown according to real-time video of the pixel coordinate position to target, specifically,
Centered on pixel coordinate position, the administrative division map of the preset shape size in the video image of corresponding video camera is extracted
As data；
Region image data is transmitted through the network on displaying block corresponding with video camera and is shown with true-to-shape.
Further, shape is rectangle.
Further, true-to-shape be at target position in the form of wicket Overlapping display.
Video fusion method provided by the invention based on A-SMGCS is extracted in the target data for receiving operator
After request, the practical GPS coordinate of target can be obtained, and according to the practical GPS coordinate of target, and according to constructing in advance
The mapping table of GPS coordinate and pixel coordinate obtains pixel coordinate position of the target in video image；It is sat further according to pixel
Cursor position shows the real-time video of target.That is, the video fusion side provided by the invention based on A-SMGCS
Area video image data can be directly displayed A-SMGCS and show corresponding target position on map, can make A- by method
The display of SMGCS is more vivid, intuitive, can satisfy demand of the system to future airport.
Detailed description of the invention
Fig. 1 is the block diagram of the Multisensor video fusion system provided in an embodiment of the present invention based on A-SMGCS；
Fig. 2 is the flow chart of the video fusion method provided in an embodiment of the present invention based on A-SMGCS；
Fig. 3 is display effect of the real time video data of target provided in an embodiment of the present invention on A-SMGCS display terminal
Fruit figure.
Specific embodiment
Present invention will be further explained by specific examples below, it should be understood, however, that, these embodiments are only
It is used, is but should not be understood as present invention is limited in any form for specifically describing in more detail.
Embodiment one
In conjunction with Fig. 1, the Multisensor video fusion system provided in this embodiment based on A-SMGCS, including, image unit 1, server
2, A-SMGCS processors 3, A-SMGCS display end 5 map converting apparatus 4；
Server 2 is connected to camera shooting unit 1, A-SMGCS processor 3, and A-SMGCS display end 5 maps converting apparatus
4；Wherein,
A-SMGCS display end 5 has the displaying block of the first quantity, and images the video camera in unit 1 including the first quantity,
The corresponding video camera of one displaying block；
Mapping converting apparatus 4 is an integrated chip, for uniquely being mapped GPS coordinate and pixel coordinate.
Multisensor video fusion system provided in an embodiment of the present invention based on A-SMGCS, camera shooting unit 1 is for obtaining real-time video
Data, each of camera shooting unit 1 video camera correspond to a displaying block in an A-SMGCS display end 5, that is, one aobvious
Show the content of shooting of block one video camera of corresponding display；A-SMGCS processor 3 is for merging ADS-B, multipoint positioning, scene prison
Depending on the data of the sensors such as radar；Mapping converting apparatus 4 is an integrated chip, for carrying out only to GPS coordinate and image coordinate
One mapping realizes that each video camera and A-SMGCS show the position mapping relations of map；Server 2 is for storing the camera shooting number of unit 1
According to, the data in storage A-SMGCS processor 3 and the mapping relations data in storage mapping converting apparatus 4, and receive behaviour
The target data for making personnel extracts request, for example, A-SMGCS is shown when it is aircraft that certain operator, which requests the target extracted,
The A-SMGCS shown on end 5 shows the real-time video that aircraft will be shown on map.
That is, the Multisensor video fusion system provided by the invention based on A-SMGCS, can directly display area video
Corresponding target position on map is shown to A-SMGCS, and the display of A-SMGCS can be made more vivid, intuitive, can satisfy and be
The demand united to future airport.
It should be noted that the function of mapping converting apparatus 4 can also be by server directly with software in the present embodiment
Form realizes that the present embodiment is not especially limited.
In addition, it should be noted that, the real-time pictures that video camera obtains, What You See Is What You Get, image is simple, just can be more
The defect that A-SMGCS is shown is mended, but simple video shows or needs to increase corresponding video and shows seat or need
Increasing other video display ends, the former needs to plan that more spaces show to do video, for tower control room, area
Domain area is extremely limited, and the device space plans pressure multiplier, and the latter then needs staff ceaselessly in A-SMGCS display end 5
It is checked with what video display end toggled, increases staff's work load.That is, provided in this embodiment be based on
The Multisensor video fusion system of A-SMGCS, practicability with higher and applicability.
Preferably, the connection carrier of server 2 and A-SMGCS display end 5 is cable or internet.
Embodiment two
In conjunction with Fig. 2, the video fusion method provided in this embodiment based on A-SMGCS, including,
Step S1 obtains the practical GPS coordinate of target；
Step S2, according to the practical GPS coordinate of target, and reflecting according to the GPS coordinate and pixel coordinate constructed in advance
Relation table is penetrated, pixel coordinate position of the target in video image is obtained；
Step S3 is shown according to real-time video of the pixel coordinate position to target.
Video fusion method provided in an embodiment of the present invention based on A-SMGCS, in the number of targets for receiving operator
After extracting request, the practical GPS coordinate of target can be obtained, and according to the practical GPS coordinate of target, and according to preparatory structure
The mapping table of the GPS coordinate and pixel coordinate built obtains pixel coordinate position of the target in video image；Further according to picture
Plain coordinate position shows the real-time video of target.That is, the video fusion provided by the invention based on A-SMGCS
Area video image data can be directly displayed A-SMGCS and show corresponding target position on map, can make A- by method
The display of SMGCS is more vivid, intuitive, can satisfy demand of the system to future airport.
Specifically, the practical GPS coordinate of target is obtained, specifically,
The practical GPS coordinate of the target obtained by A-SMGCS processor is directly transferred from server.
In the present embodiment, the practical GPS coordinate of any target (for example, aircraft) melts on A-SMGCS display terminal for system
Close multiple sensors as a result, for known quantity.
Preferably, the construction step of the mapping table of GPS coordinate and pixel coordinate specifically includes,
For each video camera, at least four calibration points in selected video image picture, and write down each calibration point
GPS coordinate and pixel coordinate, wherein any three calibration points are not conllinear；
Calculate the homography matrix of the GPS coordinate and pixel coordinate in video image plane；
The set of the corresponding homography matrix of all video cameras is determined as to the mapping table of GPS coordinate and pixel coordinate.
Further, the quantity of calibration point is more, and the accuracy rate of homography matrix is higher.
In the present embodiment, point demarcation is done to each video camera, several calibration points in first selected digital image picture (for example,
Four), and any three calibration points therein are not conllinear, the corresponding GPS coordinate and pixel coordinate for writing down each calibration point, meter
The homography matrix of GPS coordinate and pixel coordinate is in the calculating plane of delineation to get the one-to-one correspondence for having arrived GPS coordinate and pixel coordinate
Relationship.Reconnaissance (that is, calibration point) number can suitably be increased in practical calibration, the accuracy rate of homography matrix can be improved.
It is further preferred that further including that the display window of A-SMGCS is divided into the displaying block of the first quantity, and one
Displaying block corresponds to a video camera.
Specifically, the display end of A-SMGCS is divided into several displaying blocks, and a displaying block corresponding one by the present embodiment
A video camera establishes the one-to-one relationship of the displaying block He the video camera GPS coordinate.Corresponding concrete principle is as follows:
Point demarcation is done to each video camera, determines the one-to-one relationship of pixel coordinate and GPS coordinate in image；A-
The GPS coordinate of any aircraft is the multiple sensors of system globe area as a result, being therefore a known quantity on SMGCS display terminal；
Under referring again to being, the GPS coordinate of any position is unique, so, it is closed using the one-to-one correspondence of pixel coordinate and GPS coordinate
System, it may be determined that the corresponding location of pixels in GPS coordinate position in displaying block.
Further specifically, it is shown according to real-time video of the pixel coordinate position to target, specifically,
Centered on pixel coordinate position, the administrative division map of the preset shape size in the video image of corresponding video camera is extracted
As data；
Region image data is transmitted through the network on displaying block corresponding with video camera and is shown with true-to-shape.
Specifically, shape is rectangle.True-to-shape be at target position in the form of wicket Overlapping display.
In the present embodiment, centered on pixel coordinate position, the picture number of setting regions size is extracted on the video images
According to being shown, and specifically, take the rectangle frame region being sized (rectangular area length and width can be determined according to user demand)；It
Afterwards, using network, obtained rectangle frame region image data is transferred on corresponding displaying block, and the correspondence on displaying block
Real-time condition at target position in the form of wicket around displaying target and target, and the real time video data of target is in A-
Display effect on SMGCS display terminal as shown in figure 3, the present embodiment the video fusion method based on A-SMGCS, can make
The display for obtaining target is more intuitive, and practicability is high.
Although present invention has been a degree of descriptions, it will be apparent that, do not departing from the spirit and scope of the present invention
Under the conditions of, the appropriate variation of each condition can be carried out.It is appreciated that the present invention is not limited to the embodiments, and it is attributed to right
It is required that range comprising the equivalent replacement of each factor.
Claims (9)
1. a kind of video fusion method based on A-SMGCS, which is characterized in that including,
Obtain the practical GPS coordinate of target；
According to the practical GPS coordinate of the target, and the mapping relations according to the GPS coordinate and pixel coordinate that construct in advance
Table obtains pixel coordinate position of the target in video image；
It is shown according to real-time video of the pixel coordinate position to the target；
The construction step of the mapping table of the GPS coordinate and pixel coordinate specifically includes,
For each video camera, at least four calibration points in selected video image picture, and the GPS for writing down each calibration point is sat
Mark and pixel coordinate, wherein any three calibration points are not conllinear；
Calculate the homography matrix of the GPS coordinate and pixel coordinate in video image plane；
The set of the corresponding homography matrix of all video cameras is determined as to the mapping table of GPS coordinate and pixel coordinate.
2. the video fusion method according to claim 1 based on A-SMGCS, which is characterized in that the acquisition target
Practical GPS coordinate, specifically, the practical GPS for directly transferring the target obtained by A-SMGCS processor from server is sat
Mark.
3. the video fusion method according to claim 1 based on A-SMGCS, which is characterized in that the number of the calibration point
Amount is more, and the accuracy rate of the homography matrix is higher.
4. the video fusion method according to claim 1 based on A-SMGCS, which is characterized in that further include, by A-
The display window of SMGCS is divided into the displaying block of the first quantity, and the corresponding video camera of a displaying block.
5. the video fusion method according to claim 4 based on A-SMGCS, which is characterized in that described according to the picture
Plain coordinate position shows the real-time video of the target, specifically,
Centered on the pixel coordinate position, the administrative division map of the preset shape size in the video image of corresponding video camera is extracted
As data；
The region image data is transmitted through the network on displaying block corresponding with the video camera and is shown with true-to-shape.
6. the video fusion method according to claim 5 based on A-SMGCS, which is characterized in that the shape is rectangle.
7. the video fusion method according to claim 5 based on A-SMGCS, which is characterized in that the true-to-shape is,
At target position in the form of wicket Overlapping display.
8. using the Multisensor video fusion system based on A-SMGCS of claim 1 the method, which is characterized in that including video camera
Group, server, A-SMGCS processor, A-SMGCS display end map converting apparatus；
The server is connected to the camera shooting unit, the A-SMGCS processor, and the A-SMGCS display end is described
Map converting apparatus；Wherein,
The A-SMGCS display end has the displaying block of the first quantity, and includes the camera shooting of the first quantity in the camera shooting unit
Machine, the corresponding video camera of a displaying block；
The mapping converting apparatus is an integrated chip, for uniquely being mapped GPS coordinate and pixel coordinate.
9. the Multisensor video fusion system according to claim 8 based on A-SMGCS, which is characterized in that the server and institute
The connection carrier for stating A-SMGCS display end is cable or internet.
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| CN111291585B (en) * | 2018-12-06 | 2023-12-08 | 杭州海康威视数字技术股份有限公司 | GPS-based target tracking system, method and device and ball machine |
| CN111586440B (en) * | 2019-02-15 | 2022-03-11 | 腾讯科技（深圳）有限公司 | Multimedia resource delivery method, device, server and storage medium |
| CN113589333A (en) * | 2021-07-06 | 2021-11-02 | 中国民用航空飞行学院 | Adaptation method of monitoring system and computer readable storage medium |
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