CN109120886A - A kind of complete picture fusion method, device and system - Google Patents
A kind of complete picture fusion method, device and system Download PDFInfo
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- CN109120886A CN109120886A CN201710495254.9A CN201710495254A CN109120886A CN 109120886 A CN109120886 A CN 109120886A CN 201710495254 A CN201710495254 A CN 201710495254A CN 109120886 A CN109120886 A CN 109120886A
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- 238000007500 overflow downdraw method Methods 0.000 title claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 70
- 230000009466 transformation Effects 0.000 claims abstract description 37
- 238000012545 processing Methods 0.000 claims description 19
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/40—Scaling the whole image or part thereof
- G06T3/4038—Scaling the whole image or part thereof for image mosaicing, i.e. plane images composed of plane sub-images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration by the use of more than one image, e.g. averaging, subtraction
-
- 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
- H04N5/265—Mixing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20212—Image combination
- G06T2207/20221—Image fusion; Image merging
Abstract
The embodiment of the invention provides a kind of complete picture fusion methods, device and system, this method and device specifically: receives several images of multiple camera acquisitions；Projective transformation is carried out conducive to preset homography matrix image described in every width, obtains multiple sprites to be spliced；Multiple sprites are spliced, complete picture is obtained；The complete picture is output to big screen display device.Image acquired in each camera is carried out by projective transformation by homography matrix in the present invention, and then it carries out splicing and obtains complete picture, lap therein can be effectively removed, to solve the problems, such as to cause picture effect poor because there is part overlapping between small picture when splicing complete picture.
Description
Technical field
The present invention relates to monitoring technology fields, more particularly to a kind of complete picture fusion method, device and system.
Background technique
In many cases, such as large-scale square, railway station or bus station, large area is needed to show live-action image, in order to
Crowd is monitored, to guarantee the safety of above-mentioned occasion.The visual field compared with small area can only be acquired in view of individual camera, when
When needing to show larger area, it is necessary to which multiple cameras carry out image collection to different zones, then aobvious by display equipment
Show whole images.
In order to guarantee preferable spreadability, local overlapping is needed between camera, in the shadow for acquiring multiple cameras
Picture has superimposed image when being spliced, and causes spliced image effect poor, poor so as to cause monitoring effect.
Summary of the invention
In view of this, the present invention provides a kind of complete picture fusion method, device and system, to solve multiple small pictures
Because being locally overlapped the problem for causing spliced picture effect poor when being spliced into complete picture.
To achieve the goals above, the invention discloses a kind of complete picture fusion methods, which is characterized in that including as follows
Step:
Receive several images of multiple camera acquisitions；
Projective transformation is carried out conducive to preset homography matrix image described in every width, obtains multiple sprites to be spliced；
Multiple sprites are spliced, complete picture is obtained；
The complete picture is output to big screen display device.
Optionally, the homography matrix obtains as follows:
Obtain the space coordinate of each camera；
The homography matrix is obtained according to the graphical rule of the space coordinate and each camera.
Optionally, the arrangement mode of the multiple image is two-dimensional matrix arrangement mode or annular array mode.
A kind of complete picture fusing device, comprising:
Image acquiring module, for receiving several images of multiple camera acquisitions；
Projective transformation module carries out projective transformation for being conducive to preset homography matrix image described in every width, obtains more
A sprite to be spliced；
Picture splicing module obtains complete picture for splicing multiple sprites；
Picture output module, for the complete picture to be output to big screen display device.
It optionally, further include matrix computing module, for calculating homography matrix, comprising:
Coordinate acquiring unit, for obtaining the space coordinate of each camera；
Matrix calculation unit, for obtaining the list according to the graphical rule of the space coordinate and each camera
Answer matrix.
Optionally, the arrangement mode of the multiple image is two-dimensional matrix arrangement mode or annular array mode.
A kind of complete picture emerging system, including multiple cameras, video capture device and image processing equipment, in which:
The camera is used to obtain the image of multiple and different angles；
The video acquisition module is connected with multiple cameras respectively, obtains for receiving each camera
Image, and be output to image processing equipment；
Described image processing equipment is connected with the video acquisition module, for utilizing preset homography matrix to every width
The image carries out projective transformation, and by obtained after transformation it is multiple splice from picture, obtain complete picture, and pass through letter
The complete picture is output to big screen display device by number output port.
Optionally, described image processing equipment includes projective transformation module, picture splicing module and picture output module,
In:
The projective transformation module is used to be conducive to preset homography matrix image described in every width and carries out projective transformation, obtains
Multiple sprites to be spliced；
The picture splicing module obtains complete picture for splicing multiple sprites；
The picture output module is used to the complete picture being output to big screen display device.
Optionally, described image processing equipment further includes matrix computing module, in which:
The matrix computing module is used to obtain the space coordinate of each camera, and the space coordinate and each described
The graphical rule of camera is calculated, and the homography matrix is obtained.
Optionally, the arrangement mode for the multiple image that the multiple camera obtains is two-dimensional matrix arrangement mode or ring
Shape arrangement mode.
It can be seen from the above technical proposal that the present invention provides a kind of complete picture fusion method, device and system, it should
Method and apparatus specifically: receive several images of multiple camera acquisitions；Conducive to preset homography matrix shadow described in every width
As carrying out projective transformation, multiple sprites to be spliced are obtained；Multiple sprites are spliced, complete picture is obtained；
The complete picture is output to big screen display device.Pass through homography matrix in the present invention for image acquired in each camera
Projective transformation is carried out, and then carries out splicing and obtains complete picture, lap therein can be effectively removed, to solve
Cause picture effect poor because there is part overlapping between small picture when splicing complete picture.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of step flow chart of complete picture fusion method embodiment provided by the invention；
Fig. 2 is a kind of structural block diagram of complete picture fusing device embodiment provided by the invention；
Fig. 3 is a kind of structural block diagram of complete picture emerging system embodiment provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is a kind of step flow chart of complete picture fusion method embodiment provided by the invention.
Shown in referring to Fig.1, complete picture fusion method provided in this embodiment specifically comprises the following steps:
S101: several images of multiple camera acquisitions are received.
Since the scene of required monitoring is larger, and the region that each camera is covered is limited, therefore, before the application
Mentioning is to be provided with multiple cameras, and after the image that multiple cameras obtain corresponding region respectively, it is defeated to receive each camera institute
The image for shooting and exporting, to obtain several images.
In view of the shape and size of required monitoring scene, multiple cameras can use two-dimensional matrix arrangement mode or ring
Shape arrangement mode, several images obtained from are corresponding two-dimensional matrix arrangement mode or annular array mode.
S102: projective transformation is carried out to every width picture using preset homography matrix.
The homography matrix is that the space coordinate of corresponding camera and its graphical rule are calculated, and is obtaining phase
After answering homography matrix, projective transformation is carried out to each image using the homography matrix, to obtain several subgraphs to be spliced.
S103: splicing is carried out to several subgraphs.
After obtaining corresponding subgraph, splicing is carried out to several subgraphs, i.e., is given the part being wherein overlapped
Removal, and the picture splicing for removing lap is handled, to obtain a biggish complete picture.
S104: complete picture is output to big screen display device.
Big screen display device can be large screen television, large screen computer monitor or large LED screen square
Battle array.User can be allowed to watch relatively sharp careful complete picture by being output to big screen display device.
It can be seen from the above technical proposal that a kind of complete picture fusion method is present embodiments provided, specifically: it receives
Several images of multiple camera acquisitions；Projective transformation is carried out conducive to preset homography matrix image described in every width, is obtained more
A sprite to be spliced；Multiple sprites are spliced, complete picture is obtained；The complete picture is output to greatly
Screen display device.Image acquired in each camera is carried out by projective transformation by homography matrix in the present invention, and then is carried out
Splicing obtains complete picture, can effectively remove lap therein, thus because small when solving splicing complete picture
There is a problem of that part is overlapped and causes picture effect poor between picture.
In the present embodiment, homography matrix is calculated by the following method:
Firstly, obtaining the space coordinate of each camera, i.e., each camera is relative to a preset space in space
Coordinate position in coordinate system；
Then, the graphical rule of the space coordinate further according to each camera and corresponding camera, not using graphical rule
The feature of change calculates space coordinate and graphical rule, so that above-mentioned homography matrix is obtained, to utilize the matrix pair
Each image carries out projective transformation.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Embodiment two
Fig. 2 is a kind of structural block diagram of complete picture fusing device embodiment provided by the invention.
Referring to shown in Fig. 2, complete picture fusing device provided in this embodiment specifically includes image acquiring module 10, projection
Conversion module 20, picture splicing module 30 and picture output module 40.
Image acquiring module is used to receive several images of multiple camera acquisitions.
Since the scene of required monitoring is larger, and the region that each camera is covered is limited, therefore, before the application
Mentioning is to be provided with multiple cameras, and after the image that multiple cameras obtain corresponding region respectively, it is defeated to receive each camera institute
The image for shooting and exporting, to obtain several images.
In view of the shape and size of required monitoring scene, multiple cameras can use two-dimensional matrix arrangement mode or ring
Shape arrangement mode, several images obtained from are corresponding two-dimensional matrix arrangement mode or annular array mode.
Projective transformation module is used to carry out projective transformation to every width picture using preset homography matrix.
The homography matrix is that the space coordinate of corresponding camera and its graphical rule are calculated, and is obtaining phase
After answering homography matrix, projective transformation is carried out to each image using the homography matrix, to obtain several subgraphs to be spliced.
Image mosaic module is used to carry out splicing to several subgraphs.
After obtaining corresponding subgraph, splicing is carried out to several subgraphs, i.e., is given the part being wherein overlapped
Removal, and the picture splicing for removing lap is handled, to obtain a biggish complete picture.
Picture output module is used to complete picture being output to big screen display device.
Big screen display device can be large screen television, large screen computer monitor or large LED screen square
Battle array.User can be allowed to watch relatively sharp careful complete picture by being output to big screen display device.
It can be seen from the above technical proposal that a kind of complete picture fusing device is present embodiments provided, specifically: it receives
Several images of multiple camera acquisitions；Projective transformation is carried out conducive to preset homography matrix image described in every width, is obtained more
A sprite to be spliced；Multiple sprites are spliced, complete picture is obtained；The complete picture is output to greatly
Screen display device.Image acquired in each camera is carried out by projective transformation by homography matrix in the present invention, and then is carried out
Splicing obtains complete picture, can effectively remove lap therein, thus because small when solving splicing complete picture
There is a problem of that part is overlapped and causes picture effect poor between picture.
It in the present embodiment, further include matrix computing module (not shown), the module is specific to wrap for calculating homography matrix
Include coordinate acquiring unit and matrix calculation unit.
Coordinate acquiring unit is used to obtain the space coordinate of each camera, i.e., each camera is relative to one in space
Coordinate position in preset space coordinates；
Matrix calculation unit then according to the graphical rule of the space coordinate of each camera and corresponding camera, utilizes image
The feature of Scale invariant calculates space coordinate and graphical rule, so that above-mentioned homography matrix is obtained, it should to utilize
Matrix carries out projective transformation to each image.
Embodiment three
Fig. 3 is a kind of structural schematic diagram of complete picture emerging system embodiment provided by the invention.
Referring to shown in Fig. 3, complete picture emerging system provided in this embodiment includes that multiple cameras 50, video acquisition are set
Standby 60 and image processing equipment 70, video capture device is connected with each camera, image processing equipment respectively, at the image
Reason equipment is additionally provided with the signal output port for exporting complete picture.
Multiple cameras are arranged by default rule, and with the scene monitored needed for completely covering, arrangement mode can be with
It is arranged by two-dimensional matrix mode or by the difference of monitoring demand by annular array.Each camera can obtain required monitoring
Scene local image, and image capture device is output to by its signal output end.
Image capture device is provided with multiple signal input parts, obtains each camera institute by corresponding signal input part
The image of output, i.e., the local image of the required scene monitored.And multiple images are output at image by signal output end
Manage equipment.
Image processing equipment is used for after the multiple images for receiving image capture device output, to each image according to pre-
If homography matrix carry out projective transformation processing, and obtained multiple subgraphs to be spliced are spliced, have been finally obtained
Whole image, and be output on big screen display device by signal output port, so that scene of the user to required monitoring is supervised
Depending on.
The image processing equipment 70 includes projective transformation module 71, picture splicing module 72 and picture output module 73.
Projective transformation module is used to carry out projective transformation to every width picture using preset homography matrix.
The homography matrix is that the space coordinate of corresponding camera and its graphical rule are calculated, and is obtaining phase
After answering homography matrix, projective transformation is carried out to each image using the homography matrix, to obtain several subgraphs to be spliced.
Image mosaic module is used to carry out splicing to several subgraphs.
After obtaining corresponding subgraph, splicing is carried out to several subgraphs, i.e., is given the part being wherein overlapped
Removal, and the picture splicing for removing lap is handled, to obtain a biggish complete picture.
Picture output module is used to complete picture being output to big screen display device.
Big screen display device can be large screen television, large screen computer monitor or large LED screen square
Battle array.User can be allowed to watch relatively sharp careful complete picture by being output to big screen display device.
In addition, the image processing module further includes matrix computing module 74, matrix computing module is for obtaining each camera shooting
The space coordinate of head, i.e., each camera is relative to the coordinate position in space in a preset space coordinates；Then root
According to the space coordinate of each camera and the graphical rule of corresponding camera, using the constant feature of graphical rule to space coordinate
It is calculated with graphical rule, so that above-mentioned homography matrix is obtained, to carry out projection change to each image using the matrix
It changes.
It can be seen from the above technical proposal that present embodiments providing a kind of complete picture emerging system, which includes
Multiple cameras, video capture device and image processing equipment.The camera is used to obtain the image of multiple and different angles；Institute
It states video acquisition module to be connected with multiple cameras respectively, the image obtained for receiving each camera, and
It is output to image processing equipment；Described image processing equipment is connected with the video acquisition module, for utilizing preset list
Answer matrix image described in every width to carry out projective transformation, and by obtained after transformation it is multiple splice from picture, obtain complete
Picture, and the complete picture is output to by big screen display device by signal output port.By homography matrix by overlapping portion
Divide and removed, to cause picture effect poor because there is part overlapping due between small picture when solving splicing complete picture
The problem of.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program code
Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of complete picture fusion method, which comprises the steps of:
Receive several images of multiple camera acquisitions；
Projective transformation is carried out conducive to preset homography matrix image described in every width, obtains multiple sprites to be spliced；
Multiple sprites are spliced, complete picture is obtained；
The complete picture is output to big screen display device.
2. complete picture fusion method as described in claim 1, which is characterized in that the homography matrix obtains as follows
It arrives:
Obtain the space coordinate of each camera；
The homography matrix is obtained according to the graphical rule of the space coordinate and each camera.
3. picture fusion method as described in claim 1, which is characterized in that the arrangement mode of the multiple image is Two-Dimensional Moment
Battle array arrangement mode or annular array mode.
4. a kind of complete picture fusing device characterized by comprising
Image acquiring module, for receiving several images of multiple camera acquisitions；
Projective transformation module, for be conducive to preset homography matrix image described in every width carry out projective transformation, obtain it is multiple to
The sprite of splicing；
Picture splicing module obtains complete picture for splicing multiple sprites；
Picture output module, for the complete picture to be output to big screen display device.
5. complete picture fusing device as claimed in claim 4, which is characterized in that further include matrix computing module, based on
Calculate homography matrix, comprising:
Coordinate acquiring unit, for obtaining the space coordinate of each camera；
Matrix calculation unit described singly answers square for obtaining according to the graphical rule of the space coordinate and each camera
Battle array.
6. picture fusing device as claimed in claim 4, which is characterized in that the arrangement mode of the multiple image is Two-Dimensional Moment
Battle array arrangement mode or annular array mode.
7. a kind of complete picture emerging system, which is characterized in that set including multiple cameras, video capture device and image procossing
It is standby, in which:
The camera is used to obtain the image of multiple and different angles；
The video acquisition module is connected with multiple cameras respectively, the shadow obtained for receiving each camera
Picture, and it is output to image processing equipment；
Described image processing equipment is connected with the video acquisition module, for utilizing preset homography matrix described in every width
Image carries out projective transformation, and by obtained after transformation it is multiple splice from picture, obtain complete picture, and defeated by signal
The complete picture is output to big screen display device by exit port.
8. complete picture emerging system as claimed in claim 7, which is characterized in that described image processing equipment includes that projection becomes
Change the mold block, picture splicing module and picture output module, in which:
The projective transformation module is used to be conducive to preset homography matrix image described in every width and carries out projective transformation, obtains multiple
Sprite to be spliced；
The picture splicing module obtains complete picture for splicing multiple sprites；
The picture output module is used to the complete picture being output to big screen display device.
9. complete picture emerging system as claimed in claim 8, which is characterized in that described image processing equipment further includes matrix
Computing module, in which:
The matrix computing module is used to obtain the space coordinate of each camera, and the space coordinate and each camera shooting
The graphical rule of head is calculated, and the homography matrix is obtained.
10. complete picture emerging system as claimed in claim 7, which is characterized in that the multiple camera obtain several
The arrangement mode of image is two-dimensional matrix arrangement mode or annular array mode.
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Application publication date: 20190101 |