CN108737799A - A kind of projecting method, apparatus and system - Google Patents
A kind of projecting method, apparatus and system Download PDFInfo
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- CN108737799A CN108737799A CN201710271996.3A CN201710271996A CN108737799A CN 108737799 A CN108737799 A CN 108737799A CN 201710271996 A CN201710271996 A CN 201710271996A CN 108737799 A CN108737799 A CN 108737799A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
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- Engineering & Computer Science (AREA)
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- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The embodiment of the invention discloses a kind of projecting methods, including：It obtains at least two projection device initial projections and is formed by initial projections image；Corresponding at least two view field of at least two projection devices is determined from initial projections image, and rectangular area is inscribed in the maximum that at least two view fields are formed and is determined as target projection region；According to the relative position relation of at least two view fields and target projection region, from the corresponding subgraph to be projected of at least two projection device of middle determination image to be projected；The corresponding subgraph to be projected of at least two projections is controlled respectively.The embodiment of the present invention also discloses a kind of projection arrangement and optical projection system.
Description
Technical field
The present invention relates to terminal projection field more particularly to a kind of projecting method, apparatus and systems.
Background technology
In recent years, with information content increase rapidly and information carrying and transmission technology rapid development, people for
Show that the requirement of the resolution ratio, display efficiency, visual effect of equipment is increasingly enhanced.Although traditional separate unit general projectors price
Rationally, but resolution ratio is relatively low, cannot meet the needs of market；And although multi-screen splicing display realizes the height of image
Resolution ratio is shown, but the price is very expensive, widely cannot be popularized and be applied.Therefore, multi-projection system technology conduct
A kind of integrated technology weighed price and high-resolution and shown carries out splicing projection to project using multiple general projectors
Mode of delivery image to be projected is favored by people deeply.
Use in the prior art multi-projector carry out splicing projection concrete mode for：First, user according to splicing demand,
It is split by the way that computer is first image to be projected to one；Secondly, the image transmitting after segmentation is given to multiple projecting apparatus；Then,
Control the corresponding segmentation image of multiple projectors.So in the prior art, the collaboration projection process of multi-projector must lead to
Manual control is crossed, it is also desirable to projection result is manually adjusted, it is this more by manual control when number of projectors is more
The method of projector is time-consuming and laborious, causes the projection efficiency of multi-projector collaboration projection relatively low.
Invention content
In view of this, an embodiment of the present invention is intended to provide a kind of projecting method, apparatus and system, to improve more projection devices
The degree of intelligence of projection is cooperateed with, in turn, improves the projection efficiency of more projection device collaboration projections.
The technical proposal of the invention is realized in this way：
In a first aspect, an embodiment of the present invention provides a kind of projecting method, the method includes：Obtain at least two projections
Equipment initial projections are formed by initial projections image；From initial projections image determine at least two projection devices it is corresponding to
Shao Liangge view fields, and rectangular area is inscribed in the maximum that at least two view fields are formed and is determined as target projection area
Domain；According to the relative position relation of at least two view fields and target projection region, from middle determination at least two image to be projected
A corresponding subgraph to be projected of projection device；It is corresponding to be projected that at least two projections are controlled respectively
Subgraph.
Second aspect, an embodiment of the present invention provides a kind of projection arrangement, described device includes：Acquisition module, for leading to
It crosses image acquisition units at least two projection device initial projections of acquisition and is formed by initial projections image；First processing module,
It is thrown for determining corresponding at least two view field of at least two projection devices from initial projections image, and by least two
The maximum that shadow zone domain is formed is inscribed rectangular area and is determined as target projection region；Second processing module, for according at least two
The relative position relation of a view field and target projection region, respectively from least two projection device of middle determination image to be projected
Corresponding subgraph to be projected；Control module, it is corresponding to be projected for controlling at least two projections respectively
Subgraph.
The third aspect, an embodiment of the present invention provides a kind of optical projection system, the system comprises：Camera, for acquiring
At least two projection device initial projections are formed by initial projections image；Control device, for true from initial projections image
Fixed corresponding at least two view field of at least two projection devices, and the maximum that at least two view fields are formed is inscribed
Rectangular area is determined as target projection region；According to the relative position relation of at least two view fields and target projection region,
From the corresponding subgraph to be projected of at least two projection device of middle determination image to be projected；At least two projection of control respectively
Equipment projects corresponding subgraph to be projected；At least two projection devices are used for initial projections；It is respectively right to be additionally operable to projection
The subgraph to be projected answered.
It is initial to obtain at least two projection devices first for projecting method that the embodiment of the present invention is provided, apparatus and system
Projection is formed by initial projections image；Secondly, determined from initial projections image the corresponding view field of each projection device with
And target projection region；Then, according to the relative position relation of each view field and target projection region, from image to be projected
Determine the corresponding subgraph to be projected of each projection device；Finally, control that each projection is corresponding to be waited for respectively
Project subgraph, the process without human intervention, only software control by way of, so that it may to realize the collaboration of more projection devices
Projection improves the degree of intelligence of more projection device collaboration projections in turn, further, improves more projection device collaborations and throws
The projection efficiency of shadow.
Description of the drawings
Fig. 1 is the first structural schematic diagram of the optical projection system in the embodiment of the present invention；
Fig. 2 is second of structural schematic diagram of the optical projection system in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the principal view equipment in the optical projection system in the embodiment of the present invention；
Fig. 4 is the first flow diagram of the projecting method in the embodiment of the present invention；
Fig. 5 is the first projected image schematic diagram of the projecting method in the embodiment of the present invention；
Fig. 6 is second of projected image schematic diagram of the projecting method in the embodiment of the present invention；
Fig. 7 is the third projected image schematic diagram of the projecting method in the embodiment of the present invention；
Fig. 8 is second of flow diagram of the projecting method in the embodiment of the present invention；
Fig. 9 is the 4th kind of projected image schematic diagram of the projecting method in the embodiment of the present invention；
Figure 10 is the third flow diagram of the projecting method in the embodiment of the present invention；
Figure 11 is the 4th kind of flow diagram of the projecting method in the embodiment of the present invention；
Figure 12 is the structural schematic diagram of the projection arrangement in the embodiment of the present invention.
Specific implementation mode
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 describes.
Embodiment one：
The embodiment of the present invention provides a kind of projecting method, is applied to optical projection system, shown in Figure 1, the optical projection system 10
Including：Camera 11, control device 12 and at least two projection devices 13.
Wherein, above-mentioned control device and projection device both can physically set up separately, can also physically close and set.Work as control
When control equipment and projection device physically set up separately, camera can be arranged on the control device, at this point, being controlled by control device
The projection process of each projection device, and control each projection device initial projections of camera acquisition and be formed by initial projections image,
Here, control device can be mobile phone, tablet computer, laptop etc.；When control device and projection device physically close
If when, camera is arranged on the projection device, at this point it is possible to which the projection device is known as principal view equipment, others are thrown
Shadow equipment is known as each from projection device.
It is shown in Figure 2, include that 4 projection devices illustrate with optical projection system, wherein D0 indicates that the first projection is set
Standby, D1 indicates that the second projection device, D2 indicate that third projection device and D3 indicate the 4th projection device, at this point, control device
It physically closes and sets with D0, and camera is arranged on D0, the position of camera can be in same plane with the ray machine of D0
(Fig. 2 is the front view of each projection device, wherein the circle on the front view of D0 represents camera, and rectangle represents ray machine), this
When, it can be using D0 as principal view equipment, D1, D2 and D3 are as respectively from projection device, master-slave equipment connection is controlled certainly by D0
Body and respectively from the projection process of projection device, and initial projections image is acquired by D0 control cameras.
Further, in practical applications, more between more projection devices to connect in a wired fashion, in that way it is possible to connect
The problems such as plug loosening or poor contact, cause more projection devices that can not cooperate with projection.For this purpose, more throwings in the present embodiment
It can be connected wirelessly between shadow equipment, for example, being connected by wireless mirror image interconnection technique, to realize each projection device
Between information share.Still with 4 projection devices for example, here, D0 is connected as principal view equipment by wireless mirror image
Connection technology is connect from projection device D1, D2 and D3 respectively with respectively, at this point, principal view equipment is transmitting terminal, is from projection device
Receiving terminal, principal view equipment control itself and respectively from the output images of projection device.
Further, it is still physically closed with control device and projection device and is set as example, to the projection side of the present embodiment
Method is further described, shown in Figure 3, is set at this point, control device is physically closed with D0, the central processing in D0
(CPU, Central Processing Unit) module 121, display control module 122 and 123 three of communication interface can see
An entirety is done, control device is equivalent to, wherein CPU module 121 is used as total control module, is responsible for the throwing of each equipment of control
Shadow content, the ray machine 124 that display control module 122 controls D0 are projected, and the communication interface of D0 can be wireless communication interface,
And then by wireless network and respectively being communicated from projection device, control is respectively from the projection of projection device, at this point, D0 passes through wireless mirror image
Connection type is connect with D1, D2 and D3 respectively, and the image that the CPU module of D0 divides is transmitted to D1, D2 and D3, and by
Time delay between CPU module control D0 and D1, D2 and D3 ensures the simultaneous display of each projection device collaboration projected picture.
Projecting method provided in an embodiment of the present invention is illustrated with reference to above system.
Shown in Figure 4, it illustrates the flow diagram of projecting method provided in an embodiment of the present invention, this method can be with
Applied to some need using large screen display data or show image scene, such as display Military Simulation, industrial design,
When the associated picture of Visual Manufacturing, engineering projection, complicated monitoring etc., this method includes：
S40：It obtains at least two projection device initial projections and is formed by initial projections image；
Here, by taking more projection devices carry out collaboration projection in convention as an example, more projections are placed in user
After equipment, first, more projection devices are opened；Then, more projection devices carry out initial projections；Then, it is adopted by image
Collection module obtains more projection device initial projections and is formed by initial projections image.
In the present embodiment, at least 2 projection devices may be used and carry out initial projections, further, due to common figure
The length-width ratio of picture is mostly square of natural number, and therefore, projection device quantity can also take square of natural number.For example, using 4
Or 9 projection devices carry out initial projections, improve the drop shadow effect of more projection device collaboration projections.Here, it is set with 4 projections
For standby, in conjunction with shown in Fig. 3 and Fig. 5, Fig. 3 is 4 projection devices D0, D1, D2 and D3 for carrying out initial projections, and Fig. 5 is to take the photograph
As collected above-mentioned 4 projection device initial projections are formed by initial projections image, the edge of the initial projections image
It is made of the edge of the view field of each projection device, for convenience of description, Fig. 5 is using different line styles to each projection device
Projecting edge is distinguished, for example, 501 signified line styles indicate the projecting edge of D0；502 signified line styles indicate the projection side of D1
Edge；503 signified line styles indicate the projecting edge of D2；504 signified line styles indicate the projecting edge of D3.
S41：Corresponding at least two view field of at least two projection devices is determined from initial projections image, and near
The maximum that Shao Liangge view fields are formed is inscribed rectangular area and is determined as target projection region；
Here, after S40 gets initial projections image, control device can be identified just by image recognition algorithm
Corresponding at least two view field of at least two projection devices in beginning projected image, and by limb recognition algorithm or ask most
The mathematical algorithm of big rectangle calculates the maximum that at least two view fields are formed and is inscribed rectangular area, and by this most imperial palace
Rectangular area is connect as target projection region.
It shown in Fig. 3 and Fig. 6, is set at this point, control device is physically closed with D0, D0 is taking the photograph as principal view equipment
After collecting initial projections image as head, the CPU module of D0 handles the initial projections image, first, passes through image
Recognizer identifies that corresponding view field D0 ' of D0 in initial projections region, corresponding view field D1 ' of D1, D2 are corresponding
The corresponding view field D3 ' of view field D2 ' and D3；Secondly, limb recognition is carried out to D0 ', D1 ', D2 ' and D3 ' respectively,
Obtain four edges of each view field；Then, the straight line where lower edge in the top edge of D0 ' and D1 ' is carried out
Extend, the straight line where higher edge in the lower edge of D2 ' and D3 ' is extended, will be leaned in the left hand edge of D0 ' and D2 '
Straight line where right edge is extended, and the straight line where the edge to keep left in the right hand edge of D1 ' and D3 ' is extended；
Finally, the rectangular area that four extended lines are formed is determined as target projection region, shown in Figure 7, target projection region
That is rectangular area P.
Certainly, computational methods can also be voluntarily arranged in those skilled in the art according to actual needs, to identify initial throwing
Corresponding at least two view field of at least two projection devices in shadow image and acquire maximum in initial projections image
Inscribed rectangular area, the embodiment of the present invention are not specifically limited.
S42：According to the relative position relation of at least two view fields and target projection region, from image to be projected really
The corresponding subgraph to be projected of fixed at least two projection devices；
Here, S41 determine corresponding four view field D0 ' of four projection devices D0, D1, D2 and D3,
After D1 ', D2 ' and D3 ' and target projection region P, control device can be based on target projection region P and each view field
Overlapping region between D0 ', D1 ', D2 ' and D3 ' and Non-overlapping Domain, from the middle each projection device pair of acquisition image to be projected
The subgraph to be projected answered.
Further, shown in Figure 8, S42 may include steps of：
S801：According to the relative position relation of at least two view fields and target projection region, to it is image to be projected into
Row divides, and obtains the corresponding first area of at least two projection devices；
Here, control device first obtains region overlapped between each view field and target projection region, referring to
Shown in Fig. 9, be overlapped region is C0 between D0 ' and P, and be overlapped region is C1, be overlapped area between D2 ' and P between D1 ' and P
Domain is C2, and be overlapped region is C3 between D3 ' and P；Then, control device according to C0, C1, C2 and C3 to it is image to be projected into
Row divides, and obtains the corresponding first area of 4 projection devices, the i.e. corresponding division image of 4 projection devices.
S802：Region underlapped between at least two view fields and target projection region is determined as at least two respectively
A corresponding second area of projection device, the image parameter value of each pixel is identical in second area；
Here, region overlapped between four view fields and target projection region P is had determined that in control device
After C0, C1, C2 and C3, further, region underlapped between four view fields and target projection region P is determined
Shown in Figure 9 for second area, K0, K1, K2 and K3 in figure are second area.Due to final general image to be projected
It is projected in target projection region, then, except target projection region, the second area of each projection device projection can
The image parameter value of each pixel in it is carried out unified setting, here, image parameter may include：Pixel, saturation
Degree, tone etc..For example, black can be set the pixel value of each pixel in second area to, in this way, the secondth area
The project content in domain will be succinctly consistent, will not generate visual impact to the project content in target projection region, and then improve
Cooperate with the drop shadow effect of projection.
S803：The corresponding subgraph to be projected of at least two projection devices is obtained according to first area and second area
Picture.
Here, control device is divided according to C0, C1, C2 and C3 to image to be projected, obtains D0 corresponding first
It divides image, D1 corresponding second and divides the corresponding third division image of image, D2 and the corresponding 4th division images of D3, so
Afterwards, according to each division image and second area, the corresponding subgraph to be projected of D0, D1, D2 and D3 is obtained.
S43：The corresponding subgraph to be projected of at least two projections is controlled respectively.
Here it is possible to understand ground, on the basis of S803, control device controls each projection respectively in S43
The process of corresponding subgraph to be projected can be realized by the following two kinds method：First, being set in each projection of control device control
While standby projection respective division image, each view field and the underlapped second area in target projection region are subjected to unification
Filling, to realize the purpose of the corresponding subgraph to be projected of each projection；Second, it is directed to each projection device, it will
Respective division image is spliced with corresponding second area, obtains the corresponding subgraph to be projected of each projection device,
Then collaboration projection is carried out.
Further, in practical applications, when there is overlapping region between each view field of initial projection, if
According only to the relative position relation of each view field and target projection region, corresponded to from middle each projection device of determination image to be projected
Subgraph to be projected, then control the corresponding subgraph to be projected of each projection, then, the collaboration of more projection devices is thrown
It also will appear overlapping region in the image of shadow, influence drop shadow effect.For this purpose, each view field of the present embodiment in initial projection
Between when there is overlapping region, first handle image to be projected, then it is image to be projected to treated divide, finally
Realize the technique effect of non-overlapping projection.So in the present embodiment, shown in Figure 10, S801 may include：
S1001：Region overlapped between at least two view fields in target projection region is determined as each
Third region；
Here, region overlapped between each view field in target projection region is determined as each by control device
Third region, third region are the regions that more projection devices project jointly, and the pixel value of each pixel is throws more in the region
The projection of shadow equipment is superimposed obtained pixel value.It is shown in Figure 9, phase between four view field D0 ', D1 ', D2 ' and D3 '
The region being mutually overlapped includes：S1,S2,S3,S4,S5,S6.
S1002：Obtain the corresponding projection device quantity in each third region；
Here, control device obtains the corresponding projection device quantity in each third region, and then can know third region
The pixel value of interior pixel is that several projections are superimposed obtained pixel value.For example, control device gets S1
For the region that D0 and D2 are projected jointly, then the pixel value of the pixel in S1 is that 2 projections are superimposed obtained picture
Element value；S2 is the region that D0 and D1 are projected jointly, then the pixel value of the pixel in S2 is 2 projection superposition gained
The pixel value arrived；S3 is the region that D1 and D3 are projected jointly, then the pixel value of the pixel in S3 is that 2 projections are folded
Add obtained pixel value；S4 is the region that D2 and D3 are projected jointly, then the pixel value of the pixel in S4 is 2 projection devices
Projection is superimposed obtained pixel value；S5 is the region that D1, D2 and D3 are projected jointly, then the pixel value of the pixel in S5 is
3 projections are superimposed obtained pixel value；S6 is the region that D0, D2 and D3 are projected jointly, then the pixel in S6
The pixel value of point is that 3 projections are superimposed obtained pixel value.
S1003：Based on projection device quantity, handle image to be projected；
Here, control device can be set after obtaining the corresponding projection device quantity in each third region according to projection
Standby quantity, is handled image to be projected, processing procedure is as follows：
The first step：According to the mapping relations between the region image to be projected with target projection, from image to be projected, determine
The corresponding the fourth region in each third region；
Here, the mapping relations between the region image to be projected with target projection are first established；Further according to established mapping
Relationship determines the corresponding the fourth region in each third region, the fourth region, that is, middle general image to be projected from image to be projected
It is allocated to the region that more projection devices carry out overlapping projection.
For example, according to established mapping relations, from image to be projected, S1, S2, S3, S4, S5, S6 are determined respectively
Corresponding the fourth region.
Second step：Based on projection device quantity, each pixel in the corresponding the fourth region in each third region is corresponded to
Image parameter value divided equally.
Here, equal timesharing is carried out to the corresponding image parameter value of each pixel in the fourth region, it can be according to projection
Number of devices divides equally the pixel value of the fourth region.For example, for S5, since the projection device quantity of projection S5 is 3,
So, after getting the corresponding the fourth regions of S5, trisection processing is carried out to the pixel value of the fourth region, is equivalent to 3
Projection device projects the 1/3 of the pixel value of each pixel of the corresponding the fourth regions of S5 respectively, and in turn, 3 projection devices are total
With projection the obtained each pixels of S5 pixel value be also equal to it is image to be projected in the fourth region in each pixel
The pixel value of point.
S1004：It is image to be projected to treated to divide, obtain at least two projection devices corresponding first
Region.
Here, it is based on overlapping region S1, S2, S3, S4, S5, S6 in control device, above-mentioned processing is carried out to image to be projected
Later, it is divided to image to be projected, obtains the corresponding first area of each projection device, each throwing is obtained in conjunction with second area
The corresponding subgraph to be projected of shadow equipment controls the corresponding subgraph to be projected of each projection, passes through this method therewith
It carries out the collaboration of more projection devices to project in obtained view field being not in overlapping region, and in the related technology by artificial
The scheme for manually adjusting overlapping region compares, and in the present embodiment, more projection devices is improved by the method that software controls
Cooperate with the efficiency of projection, it is ensured that the accuracy rate of more projection device collaboration projections.
It further, can also be first to be projected when there is overlapping region in the image of more projection devices collaboration projection
Image is divided, then is handled the image after division, finally realizes the technique effect of non-overlapping projection.So at this
Shown in Figure 11 in embodiment, S801 can also include：
S1101：According to the relative position relation of at least two view fields and target projection region, to it is image to be projected into
Row divides, and obtains corresponding 5th region of at least two projection devices；
Here, control device first determine region C0 overlapped between four view fields and target projection region P,
Then C1, C2 and C3 divide to image to be projected according to C0, C1, C2 and C3, obtain four projection devices respectively
Corresponding 5th region, the 5th region be the corresponding division image of each projection device, i.e. D0 it is corresponding first divide image, D1 pairs
Second answered divides the corresponding third of image, D2 and divides image and the corresponding 4th division images of D3.
S1102：Region overlapped between at least two view fields in target projection region is determined as each
6th region；
Here, according to region overlapped between four view field D0 ', D1 ', D2 ' and D3 ', it may be determined that go out
Following multiple 6th regions, respectively：S1,S2,S3,S4,S5,S6.
S1103：Obtain the corresponding projection device quantity in each 6th region；
Here, it is the region that D0 and D2 are projected jointly that control device, which gets S1, then the corresponding projection device quantity of S1 is
2；S2 is the region that D0 and D1 are projected jointly, then the corresponding projection device quantity of S2 is 2；S3 is the area that D1 and D3 are projected jointly
Domain, then the corresponding projection device quantity of S3 is 2；S4 is the region that D2 and D3 are projected jointly, then the corresponding projection device quantity of S4
It is 2；S5 is the region that D1, D2 and D3 are projected jointly, then the corresponding projection device quantity of S5 is 3；S6 is total for D0, D2 and D3
With the region of projection, then the corresponding projection device quantity of S6 is 3.
S1104：Based on projection device quantity, the 5th region corresponding at least two projection devices is handled,
Obtain the corresponding first area of at least two projection devices.
Here, first, control device establishes each view field in target projection region and corresponding each 5th area
Mapping relations between domain, for example, the mapping established respectively between D0 ' and C0, D1 ' and C1, D2 ' and C2 and D3 ' and C3 is closed
System；Secondly, according to established mapping relations, the region corresponding to S1, S2, S5, S6 is determined from C0, determined from C1 S2,
Region corresponding to S3, S6 determines the region corresponding to S1, S4, S5 from C2, is determined corresponding to S3, S4, S5, S6 from C3
Region；Then, according to the projection device quantity in S1, S2, S3, S4, S5, S6, to S1, S2 in C0, C1, C2 and C3, S3,
The pixel value of the pixel in region corresponding to S4, S5, S6 is respectively handled, to obtain each projection device corresponding
One region；Further, for each projection device, corresponding wait for can be obtained according to first area and second area
Project subgraph；Finally, the corresponding subgraph to be projected of each projection is controlled, can realize more projection device associations
Same projection, and the drop shadow effect of non-overlapping projection.
It should be noted that in actually projecting, when being projected by the more projection devices of manual control, it is also necessary to artificial
The overlapping region between image obtained by each projector is manually adjusted, the workload manually adjusted is more heavy, and is throwing
When shadow equipment is more, quick adjustment, and this method by manually adjusting the position of more projecting apparatus are cannot achieve, it can only
Accomplish to adjust roughly, accurately the lap of each view field can not be staggered completely, in this way, will be unable to that collaboration is avoided to project
The overlapping region occurred causes drop shadow effect poor.
However, in embodiments of the present invention, after opening each projection device, first, the more projections of control device control are set
The standby initial projections that carry out obtain each view field；Then, when there is overlapping region between each view field, control device can
It rapidly handles image to be projected, to obtain the corresponding subgraph to be projected of each projection device；Finally, control device
The corresponding subgraph to be projected of each projection is controlled, in turn, the overlapping for avoiding more projection device collaboration projections is asked
Topic, to improve drop shadow effect and the projection accuracy rate of more projection device collaboration projections.
Embodiment two：
Based on previous embodiment, the present embodiment carries out collaboration projection citing with 4 projection devices, and root in S42 is described in detail
According to the relative position relation of at least two view fields and target projection region, projected from middle determination at least two image to be projected
The process of the corresponding subgraph to be projected of equipment.
In control device control D0 and D1, D2 and D3 initial projections, and after determining target projection region, mesh can be obtained
The coordinate value of any one pixel in view field, the number for the projecting apparatus for projecting the pixel and corresponding projection is marked to sit
Scale value.In turn, following array formats expression may be used in any pixel point in target projection region：(X,Y,N,X0,Y0,X1,
Y1, X2, Y2, X3, Y3), wherein X, Y are the coordinate value of any pixel point in target projection region, and N is the pixel by N number of throwing
Shadow projects jointly, and when N is 1, the pixel is by 1 projector projects, and the pixel is projected jointly by 2 projecting apparatus when N is 2, N
When being 3, which is projected jointly by 3 projecting apparatus, and when N is 4, which is projected jointly by 4 projecting apparatus.(X0, Y0)
For projection coordinate's value of D0, if the pixel is projected by D0, (X0, Y0) is the specific coordinate value of D0 projections, if should
Point is not projected by D0, then sets the X0=-1 of the pixel, Y0=-1；(X1, Y1) is projection coordinate's value of D1, if the pixel
Point is projected by D1, then the specific coordinate value that (X1, Y1) is D1 projections sets the pixel if the point is not projected by D1
X1=-1, Y1=-1；(X2, Y2) is projection coordinate's value of D2, if the pixel is projected by D2, (X2, Y2) is D2
The specific coordinate value of projection sets the X2=-1 of the pixel, Y2=-1 if the pixel is not projected by D2；(X3, Y3)
For projection coordinate's value of D3, if the pixel is projected by D3, (X3, Y3) is the specific coordinate value of D3 projections, if should
Pixel is not projected by D3, then sets the X3=-1 of the pixel, Y3=-1.
When target projection regional resolution is 1280 × 800, and the resolution ratio of each projector apparatus is 800 × 600, with
Four projection devices carry out collaboration projection and illustrate：
Pixel (0,0) in target projection region is projected by projecting apparatus D2, the corresponding coordinate values of D2 be (0,
50), then the corresponding array of the pixel is (0,0,1, -1, -1, -1, -1,0,50, -1, -1).
Pixel (1280,0) in target projection region is projected by projecting apparatus D3, is in the corresponding coordinate values of D2
(800,0), then the corresponding array of the pixel is (1280,0,1, -1, -1, -1, -1, -1, -1,800,0).
Pixel (0,800) in target projection region is projected by projecting apparatus D0, is in the corresponding coordinate values of D0
The corresponding array of (60,600), the pixel is (0,800,1,60,600, -1, -1, -1, -1, -1, -1).
Pixel (1280,800) in target projection region is projected by projecting apparatus D1, is in the corresponding coordinate values of D1
(800,500), then the corresponding array of the pixel is (1280,800,1, -1, -1,800,500, -1, -1, -1, -1).
Pixel (320,400) in target projection region is projected by projecting apparatus D0 and D2, in the corresponding coordinates of D0
Value be (410,0), the corresponding coordinate values of D2 be (380,290), then the corresponding array of the pixel be (320,400,2,410,
0,-1,-1,380,290,-1,-1)。
Pixel (640,400) in target projection region is projected by projecting apparatus D0, D1, D2 and D3, is corresponded in D0
Coordinate value be (700,50), the corresponding coordinate values of D1 be (50,50), the corresponding coordinate values of D2 be (760,580), D3 is corresponding
Coordinate value be (50,560), then the corresponding array of the pixel be (640,400,4,700,50,50,50,760,580,50,
560)。
Control device reads the image to be projected of display system caching, image to be projected to use the coordinate of each pixel
It is worth corresponding color value to indicate, wherein color value indicates that in turn, the coordinate value of each pixel can with three primary colors (RGB)
To be expressed as (X, Y, R, G, B), the coordinate value (X, Y) of each pixel in image to be projected is and each in target projection region
The coordinate value (X, Y) of pixel corresponds, in turn, will be image to be projected on each pixel be divided into each projection device
In, all pixels point in the corresponding subgraph to be projected of each projection device is obtained, here it is possible to using following array cell
Formula indicates：(X,Y,N,X0,Y0,R/N,G/N,B/N,X1,Y1,R/N,G/N,B/N,X2,Y2,R/N,G/N,B/N,X3,Y3,R/
N,G/N,B/N,)。
About D0 (X0, Y0, R/N, G/N, B/N), if X0=-1, Y0=-1, then the pixel is not projected by D0, such as
Fruit X0>-1,Y0>- 1, then coordinate is that need the pixel value that is projected be (R/N, G/N, B/N) for the pixel of (X0, Y0) in D0,
Projection device D0, initialization show array [X0, Y0,0,0,0], are not (0,0,0) to the comfortableization color of pixel, right
Each pixel in target projection region does the division of projection device as above, and pixel value is filled into initialization array,
Final array [X0, Y0, R, G, B] can be obtained, the coordinate value of the array and its corresponding color value are exactly that D0 projects the pixel
The point pixel value to be projected.
About D1 (X1, Y1, R/N, G/N, B/N), if X1=-1, Y1=-1, then the pixel is not projected by D1, such as
Fruit X0>-1,Y0>- 1, then it is (R/N, G/N, B/N) that coordinate, which is the pixel need pixel to be shown of (X1, Y1), in D1, projection
Equipment D1, initialization show array [X1, Y1,0,0,0], are not (0,0,0) to the comfortableization color of pixel, to target
Each pixel of view field does the division of projection device as above, and color value is filled into initialization array, can be with
Final array [X1, Y1, R, G, B] is obtained, the coordinate value of the array and its corresponding color value are exactly that D1 projects the pixel institute
The pixel value to be projected.
About D2 (X2, Y2, R/N, G/N, B/N), if X2=-1, Y2=-1, then the pixel is not projected on D2,
If X2>-1,Y2>- 1, then it is (R/N, G/N, B/N) that coordinate, which is the pixel need pixel value to be shown of (X2, Y2), in D2,
Projection device D2, initialization show array [X2, Y2,0,0,0], are not (0,0,0) to the comfortableization color of pixel, right
Each pixel in target projection region does the division of projection device as above, and color value is filled into initialization array,
Final array [X2, Y2, R, G, B] can be obtained, the coordinate value of the array and its corresponding color value are exactly that D2 projects the pixel
The point pixel value to be projected.
About D3 (X3, Y3, R/N, G/N, B/N), if X3=-1, Y3=-1, then the pixel is not projected on D3,
If X3>-1,Y3>- 1, then it is (R/N, G/N, B/N) that coordinate, which is the point need color value to be shown of (X3, Y3), in D3, projection
Equipment D3, initialization show array [X3, Y3,0,0,0], are not (0,0,0) to the comfortableization color of pixel, to target
Each pixel of view field does the division of projection device as above, and color value is filled into initialization array, can be with
Final array [X3, Y3, R, G, B] is obtained, the coordinate value of the array and its corresponding color value are exactly that D3 projects the pixel institute
The pixel value to be projected.
Finally, control device control D0, D1, D2 and D3 project corresponding subgraph to be projected.
In practical applications, the projection device in the present embodiment can be digital light processing (DLP, Digital Light
Processing) projecting apparatus can also be other projecting apparatus.Here, by taking DLP projector as an example, which includes as follows
Several key components：The light source of light source, DLP system is made of three LED bulbs, sends out red RED, green GREEN respectively, blue
The picture brightness of the light of BLUE colors, the higher projection of brightness of LED is higher；Digital micromirror elements (DMD, Digital Micro
Mirror Device), DMD is the core display device in DLP projection system, it is by many rotatable small mirror groups
At small mirror is arranged according to the row of pixel, and each pixel of each small mirror and image corresponds to, in other words each picture of image
The deflection angle of element one small mirror of control.After the RGB data of each pixel of image, which decomposites, to be come, the RGB lamps of LED are controlled
It switching respectively, small mirror is deflected according to the numerical value of R when R lamps are opened, and the light of R numerical value more large mirror reflection is more,
G, B lamp are opened similarly, and the correct brightness of RGB is reflected away in the image of a frame by this process；Camera lens, small mirror
The light of reflection converges, and is then projected on curtain according to focal length, different focal lengths is realized by the lens set in camera lens, passes through coke
Away from the imaging definition and size that can be adjusted in curtain；The to sum up principle of DLP projection system, the image data on DMD can change
The mirror for becoming DMD overturns each pixel color and brightness difference that picture is realized to change the power of RGB light, by changing
Become R, the brightness of tri- LED of G, B can be with the color balance of overall control picture.
In the present embodiment, since pixel value 1 may be implemented using DLP projector：1 Overlay, so, by more
When projection device collaboration projection, pixel value image to be projected corresponding for overlapping region can be based on the throwing in the region
Shadow number of devices is respectively handled, and then controls the color balance of the image of collaboration projection.
Embodiment three：
Based on previous embodiment, this implementation carries out collaboration projection citing with 4 projection devices, is described in detail in S41 and determines
The corresponding view field of each projection device, and determine the process in target projection region.
Here, in order to simplify image recognition algorithm, the rectangular image that different colours may be used in each projection device carries out just
Beginningization projects, for example, being directed to 4 projection devices, D0 indicates that the first projection device, projected color are the rectangular area of red；
D1 indicates that the second projection device, projected color are the rectangular area of green；D2 indicates that third projection device, projected color are
The rectangular area of yellow；D3 indicates that the 4th projection device, projected color are the rectangular area of blue.4 projection devices into
After row initial projections, it is as shown in Figure 5 that control device controls the collected initial projections image of camera.Wherein, it is shared in figure
10 kinds of colors, including red, green, yellow, blue and six kinds of blend colors (being not shown in Fig. 5).
First, in conjunction with Fig. 5 and Fig. 6 (the corresponding region of six kinds of blend colors in Fig. 5 be respectively S1, S2 in Fig. 6, S3,
S4, S5, S6), the process of the corresponding projected area of four projection devices, which illustrates, to be determined to control device.
It determines the corresponding view fields of D0, judges whether the regions S1-S6 are adjacent with red area, take adjacent area, form
The corresponding projected areas D0, such as the D0 ' frame inside points in Fig. 6.
It determines the corresponding view fields of D1, judges whether the regions S1-S6 are adjacent with green area, take adjacent area, form
The corresponding projected areas D1, such as the D1 ' frame inside points in Fig. 6.
It determines the corresponding view fields of D2, judges whether the regions S1-S6 are adjacent with yellow area, take adjacent area, form
The corresponding projected areas D2, such as the D2 ' frame inside points in Fig. 6.
It determines the corresponding view fields of D3, judges whether the regions S1-S6 are adjacent with blue region, take adjacent area, form
The corresponding projected areas D3, such as the D3 ' frame inside points in Fig. 6.
Secondly, according to the corresponding view field D0 ' of four projection devices D0, D1, D2 and D3, D1 ', D2 ' and D3 ',
Determine target projection region.
In conjunction with shown in Fig. 7, control device carries out image recognition to the projecting edge of initial projections image, identifies different face
The horizontal line of color all horizontal line and vertical line, each color is two, and vertical line is two.
The confirmation of target projection region coboundary：Two red horizontal lines, take higher one in the regions D0 '.The areas D1 '
Two horizontal lines of domain Green, take higher one.Two lines are compared, and take lower one to be used as target projection region
Coboundary, extended.
The confirmation of target projection region lower boundary：Two horizontal lines of color yellow, take lower one in the regions D2 '.
Two horizontal lines of color blue, take lower one in the regions D3 '.Two lines are compared, and take higher one to be used as mesh
The region lower boundary for marking projection, is extended.
The confirmation of target projection region left margin：Two vertical lines of color red, take one to keep left in the regions D0 '.
Two vertical lines of color yellow, take one to keep left in the regions D2 '.Two lines are compared, and are taken one kept right and are used as mesh
The left margin for marking view field, is extended.
The confirmation of target projection region right margin：Two vertical lines of colors green, take one to keep right in the regions D1 '.
Two vertical lines of color blue, take one to keep right in the regions D3 '.Two lines are compared, and are taken one kept left and are used as mesh
The right margin for marking view field, is extended.
Finally, four extended lines composition rectangular area be exactly target projection region, as the P meanings in Fig. 8 frame inside
Point.
Further, be determined the corresponding view field of each projection device in S41, and determine target projection region it
Afterwards, still S42 is illustrated by taking 4 projection device collaboration projections as an example, meanwhile, in the present embodiment, when each view field
Between when there is overlapping region, first to be divided to image to be projected, then the image after division is handled, it is final to realize
It is illustrated for non-overlapping projection.
First, control device treats perspective view according to the relative position relation of four view fields and target projection region
As being divided, corresponding 5th region of four projection devices is obtained.
Secondly, control device is established between each view field in target projection region and corresponding each 5th region
Mapping relations；According to established mapping relations, determine that each lap is corresponding to be projected from each 5th region
Image；According to the projection device quantity of overlapping region, corresponding pixel value image to be projected is handled, each throwing is obtained
The corresponding subgraph to be projected of shadow equipment.
Shown in Figure 9, subgraph to be projected corresponding to each projection device illustrates：
The corresponding subgraphs to be projected of D0 include lower part：
K0：It is projected as black；
S1：With D2 laps, get S1 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S1
Plain value halves, and obtaining that treated, S1 is corresponding image to be projected；
S2：With D1 laps, get S2 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S2
Plain value halves, and obtaining that treated, S2 is corresponding image to be projected；
S5：With D2, D3 lap, get S5 it is corresponding it is image to be projected after, S5 is corresponding image to be projected
Pixel value reduce to 1/3, obtaining that treated, S5 is corresponding image to be projected；
S6：With D1, D3 lap, get S6 it is corresponding it is image to be projected after, S6 is corresponding image to be projected
Pixel value reduce to 1/3, obtaining that treated, S6 is corresponding image to be projected；
The corresponding pixel value image to be projected of other parts is constant.
The corresponding subgraphs to be projected of D1 include following part：
K1：It is projected as black；
S2：With D0 laps, get S2 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S2
Plain value halves, and obtaining that treated, S2 is corresponding image to be projected；
S3：With D3 laps, get S3 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S3
Plain value halves, and obtaining that treated, S3 is corresponding image to be projected；
S6：With D0, D3 lap, get S6 it is corresponding it is image to be projected after, S6 is corresponding image to be projected
Pixel value reduce to 1/3, obtaining that treated, S6 is corresponding image to be projected；
The corresponding pixel value image to be projected of other parts is constant.
The corresponding subgraphs to be projected of D2 include following part：
K2：It is projected as black；
S1：With D0 laps, get S1 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S1
Plain value halves, and obtaining that treated, S1 is corresponding image to be projected；
S4：With D3 laps, get S4 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S4
Plain value halves, and obtaining that treated, S4 is corresponding image to be projected；
S5：With D0, D3 lap, get S5 it is corresponding it is image to be projected after, S5 is corresponding image to be projected
Pixel value reduce to 1/3, obtaining that treated, S5 is corresponding image to be projected；
The corresponding pixel value image to be projected of other parts is constant.
The corresponding subgraphs to be projected of D3 include following part：
K3：It is projected as black；
S3：With D1 laps, get S3 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S3
Plain value halves, and obtaining that treated, S3 is corresponding image to be projected；
S4：With D2 laps, get S4 it is corresponding it is image to be projected after, by the corresponding pictures image to be projected of S4
Plain value halves, and obtaining that treated, S4 is corresponding image to be projected；
S5：With D2, D0 lap, get S5 it is corresponding it is image to be projected after, S5 is corresponding image to be projected
Pixel value reduce to 1/3, obtaining that treated, S5 is corresponding image to be projected；
S6：With D1, D0 lap, get S6 it is corresponding it is image to be projected after, S6 is corresponding image to be projected
Pixel value reduce to 1/3, obtaining that treated, S6 is corresponding image to be projected；
The corresponding pixel value image to be projected of other parts is constant.
Finally, it is corresponding image to be projected to control each projection for control device.
Example IV：
Based on same inventive concept, in the present embodiment, a kind of projection arrangement is provided, projection arrangement setting is controlling
In equipment, the projection process for controlling more projection device collaboration projections.
Here, shown in Figure 12, which includes：Acquisition module 101, for being obtained by image acquisition units
At least two projection device initial projections are formed by initial projections image；First processing module 102 is used for from initial projections figure
Corresponding at least two view field of at least two projection devices is determined as in, and at least two view fields are formed most
Rectangular area inscribed greatly is determined as target projection region；Second processing module 103, for according at least two view fields and mesh
The relative position relation for marking view field, from the corresponding son to be projected of at least two projection device of middle determination image to be projected
Image；Control module 104, for controlling the corresponding subgraph to be projected of at least two projections respectively.
In the present embodiment, Second processing module 103 are additionally operable to according at least two view fields and target projection region
Relative position relation, divided to image to be projected, obtain the corresponding first area of at least two projection devices；Point
Region underlapped between at least two view fields and target projection region at least two projection devices are not determined as respectively
Corresponding second area, the image parameter of each pixel is identical in second area；For each projection device, according to the firstth area
Domain and second area obtain corresponding subgraph to be projected.
In the present embodiment, Second processing module 103 are additionally operable at least two view fields in target projection region
Between overlapped region be determined as each third region；Obtain the corresponding projection device quantity in each third region；It is based on
Projection device quantity, it is image to be projected to first to handle；According to the phase of at least two view fields and target projection region
It is image to be projected to treated to divide to position relationship, obtain corresponding firstth area of at least two projection devices
Domain.
In the present embodiment, Second processing module 103 are additionally operable to according between the region image to be projected with target projection
Mapping relations determine the corresponding the fourth region in each third region from image to be projected；Based on projection device quantity, to each
The corresponding image parameter value of each pixel is divided equally in the corresponding the fourth region in a third region.
In the present embodiment, Second processing module 103 are additionally operable to according at least two view fields and target projection region
Relative position relation, divided to image to be projected, obtain at least two projection devices corresponding 5th regions；It will
Overlapped region is determined as each 6th region between at least two view fields in target projection region；It obtains each
The corresponding projection device quantity in 6th region；Based on projection device quantity, the corresponding at least two projection devices the 5th
Region is handled, and the corresponding first area of at least two projection devices is obtained.
It need to be noted that be：The description of apparatus above embodiment, be with the description of above method embodiment it is similar,
With the similar advantageous effect of same embodiment of the method, therefore do not repeat.For undisclosed skill in apparatus of the present invention embodiment
Art details please refers to the description of the method for the present invention embodiment and understands, to save length, therefore repeats no more.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention can be used can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (11)
1. a kind of projecting method, which is characterized in that including：
It obtains at least two projection device initial projections and is formed by initial projections image；
Determine corresponding at least two view field of at least two projection device from the initial projections image, and by institute
It states the inscribed rectangular area of maximum that at least two view fields are formed and is determined as target projection region；
According to the relative position relation of at least two view field and the target projection region, from image to be projected really
The fixed corresponding subgraph to be projected of at least two projection devices；
The corresponding subgraph to be projected of at least two projection is controlled respectively.
2. according to the method described in claim 1, it is characterized in that, described according at least two view field and the mesh
The relative position relation for marking view field, waits throwing from middle determination at least two projection device image to be projected is corresponding
Shadow image, including：
According to the relative position relation of at least two view field and the target projection region, to described image to be projected
It is divided, obtains the corresponding first area of at least two projection devices；
Respectively by region underlapped between at least two view field and the target projection region be determined as it is described extremely
Few two corresponding second areas of projection device, the image parameter value of each pixel is identical in the second area；
The corresponding son to be projected of at least two projection device is obtained according to the first area and the second area
Image.
3. according to the method described in claim 2, it is characterized in that, described according at least two view field and the mesh
Mark view field relative position relation, to it is described it is image to be projected divide, it is each to obtain at least two projection device
Self-corresponding first area, including：
Region overlapped between at least two view field in the target projection region is determined as each
Three regions；
Obtain the corresponding projection device quantity in each third region；
Based on the projection device quantity, image to be projected handled to described；
It is to be projected to treated according to the relative position relation of at least two view field and the target projection region
Image is divided, and the corresponding first area of at least two projection devices is obtained.
4. according to the method described in claim 3, it is characterized in that, it is described be based on the projection device quantity, wait throwing to described
Shadow image is handled, including：
According to the mapping relations image to be projected between the target projection region, from it is described it is image to be projected in, really
Determine the corresponding the fourth region in each third region；
Based on the projection device quantity, to the corresponding figure of each pixel in the corresponding the fourth region in each third region
As parameter value is divided equally.
5. according to the method described in claim 2, it is characterized in that, described according at least two view field and the mesh
Mark view field relative position relation, to it is described it is image to be projected divide, it is each to obtain at least two projection device
Self-corresponding first area, including：
According to the relative position relation of at least two view field and the target projection region, to described image to be projected
It is divided, obtains corresponding 5th region of at least two projection devices；
Region overlapped between at least two view field in the target projection region is determined as each
Six regions；
Obtain the corresponding projection device quantity in each 6th region；
Based on the projection device quantity, corresponding 5th region of at least two projection device is handled, is obtained
To the corresponding first area of at least two projection devices.
6. a kind of projection arrangement, which is characterized in that including：
Acquisition module is formed by initial projections for obtaining at least two projection device initial projections by image acquisition units
Image；
First processing module, for determining at least two projection device corresponding at least two from the initial projections image
A view field, and rectangular area is inscribed in the maximum that at least two view field is formed and is determined as target projection area
Domain；
Second processing module, for being closed according to the relative position of at least two view field and the target projection region
System, from the corresponding subgraph to be projected of middle determination at least two projection device image to be projected；
Control module, for controlling the corresponding subgraph to be projected of at least two projection respectively.
7. device according to claim 6, which is characterized in that the Second processing module is additionally operable to according at least
The relative position relation of Liang Ge view fields and the target projection region, to it is described it is image to be projected divide, obtain institute
State the corresponding first area of at least two projection devices；Respectively by least two view field and the target projection
Underlapped region is determined as the corresponding second area of at least two projection devices, the second area between region
The image parameter value of interior each pixel is identical；Described at least two are obtained according to the first area and the second area to throw
The corresponding subgraph to be projected of shadow equipment.
8. device according to claim 7, which is characterized in that the Second processing module is additionally operable to throw the target
Overlapped region is determined as each third region between at least two view field in the domain of shadow zone；It obtains described each
The corresponding projection device quantity in a third region；Based on the projection device quantity, image to be projected handled to described；Root
According to the relative position relation of at least two view field and the target projection region, to treated it is image to be projected into
Row divides, and obtains the corresponding first area of at least two projection devices.
9. device according to claim 8, which is characterized in that the Second processing module is additionally operable to wait throwing according to
Mapping relations between shadow image and the target projection region, from it is described it is image to be projected in, determine each third area
The corresponding the fourth region in domain；Based on the projection device quantity, to each in the corresponding the fourth region in each third region
The corresponding image parameter value of pixel is divided equally.
10. device according to claim 7, which is characterized in that the Second processing module is additionally operable to according at least
The relative position relation of Liang Ge view fields and the target projection region, to it is described it is image to be projected divide, obtain institute
State corresponding 5th region of at least two projection devices；By at least two projected area in the target projection region
Overlapped region is determined as each 6th region between domain；Obtain the corresponding projection device number in each 6th region
Amount；Based on the projection device quantity, corresponding 5th region of at least two projection device is handled, is obtained
The corresponding first area of at least two projection devices.
11. a kind of optical projection system, which is characterized in that including：
Camera is formed by initial projections image for acquiring at least two projection device initial projections；Control device is used for
Corresponding at least two view field of at least two projection device is determined from the initial projections image, and by described in extremely
The maximum that Shao Liangge view fields are formed is inscribed rectangular area and is determined as target projection region；It is projected according to described at least two
The relative position relation in region and the target projection region is set from middle determination at least two projection image to be projected
Standby corresponding subgraph to be projected；It is corresponding described to be projected that at least two projection is controlled respectively
Subgraph；At least two projection device is used for initial projections；It is additionally operable to project corresponding subgraph to be projected
Picture.
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| PCT/CN2018/076995 WO2018196472A1 (en) | 2017-04-24 | 2018-02-23 | Projection method, apparatus and system, and storage medium |
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| CN110989949A (en) * | 2019-11-13 | 2020-04-10 | 浙江大华技术股份有限公司 | Method and device for special-shaped splicing display |
| CN111158554A (en) * | 2019-12-31 | 2020-05-15 | 联想(北京)有限公司 | Image display method, electronic equipment and image display system |
| CN111258524A (en) * | 2020-01-20 | 2020-06-09 | 北京淳中科技股份有限公司 | Control method and device of spliced screen group and server |
| CN112233048A (en) * | 2020-12-11 | 2021-01-15 | 成都成电光信科技股份有限公司 | Spherical video image correction method |
| CN112770095A (en) * | 2021-01-28 | 2021-05-07 | 广州方硅信息技术有限公司 | Panoramic projection method and device and electronic equipment |
| CN113671782A (en) * | 2021-10-21 | 2021-11-19 | 成都极米科技股份有限公司 | Projection equipment |
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| CN117041508A (en) * | 2023-10-09 | 2023-11-10 | 杭州罗莱迪思科技股份有限公司 | Distributed projection method, projection system, equipment and medium |
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| US20160094821A1 (en) * | 2014-09-25 | 2016-03-31 | Canon Kabushiki Kaisha | Projection type image display apparatus and control method therefor |
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| CN110191326A (en) * | 2019-05-29 | 2019-08-30 | 北京小鸟听听科技有限公司 | A kind of optical projection system resolution extension method, apparatus and optical projection system |
| CN110989949A (en) * | 2019-11-13 | 2020-04-10 | 浙江大华技术股份有限公司 | Method and device for special-shaped splicing display |
| CN110989949B (en) * | 2019-11-13 | 2023-04-11 | 浙江大华技术股份有限公司 | Method and device for special-shaped splicing display |
| CN111158554A (en) * | 2019-12-31 | 2020-05-15 | 联想(北京)有限公司 | Image display method, electronic equipment and image display system |
| CN111258524A (en) * | 2020-01-20 | 2020-06-09 | 北京淳中科技股份有限公司 | Control method and device of spliced screen group and server |
| CN114007051A (en) * | 2020-07-28 | 2022-02-01 | 青岛海信激光显示股份有限公司 | Laser projection system and display method of projected image thereof |
| CN114007051B (en) * | 2020-07-28 | 2024-02-20 | 青岛海信激光显示股份有限公司 | Laser projection system and display method of projection image thereof |
| CN112233048A (en) * | 2020-12-11 | 2021-01-15 | 成都成电光信科技股份有限公司 | Spherical video image correction method |
| CN112770095A (en) * | 2021-01-28 | 2021-05-07 | 广州方硅信息技术有限公司 | Panoramic projection method and device and electronic equipment |
| CN113671782A (en) * | 2021-10-21 | 2021-11-19 | 成都极米科技股份有限公司 | Projection equipment |
| CN117041508A (en) * | 2023-10-09 | 2023-11-10 | 杭州罗莱迪思科技股份有限公司 | Distributed projection method, projection system, equipment and medium |
| CN117041508B (en) * | 2023-10-09 | 2024-01-16 | 杭州罗莱迪思科技股份有限公司 | Distributed projection method, projection system, equipment and medium |
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