CN106331668A - Multi-projection image display method and system - Google Patents
Multi-projection image display method and system Download PDFInfo
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- CN106331668A CN106331668A CN201610627708.9A CN201610627708A CN106331668A CN 106331668 A CN106331668 A CN 106331668A CN 201610627708 A CN201610627708 A CN 201610627708A CN 106331668 A CN106331668 A CN 106331668A
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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
- 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]
- H04N9/3179—Video signal processing therefor
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Abstract
The invention provides a multi-projection image display method and a system. The method comprises the following steps: carrying out projection display on a stored projection image by a first projection device; obtaining the image information projected by the front projection device by the rear projection device, using the obtained image as a fused or splicing target image in sequence, matching feature points of the target image and a to-be-projected image, obtaining a hyomography matrix according to a matching result, adjusting the to-be-projected image according to the hyomography matrix, and carrying out fused or splicing display on the to-be-projected image and the target image. According to the method and the system provided by the invention, the projection image is automatically corrected by the machine vision image algorithm, so that a plurality of machines can play an ultra wide image in a working state, the ultra wide image improves the projection brightness, and convenience is provided for a user to carry out projection display on ultra wide, ultra large or ultra high images by using a miniature projector.
Description
Technical field
The present invention relates to image display control technology field, in particular a kind of method for displaying projection and system thereof.
Background technology
At present the most popular a lot of intelligent miniature projectors, its projecting function does not the most become with conventional projector
Changing, simply projection quality and projection brightness aspect there are differences, therefore its application ratio in the family or on mini-session
Wide, but owing to intelligent miniature projector is limited by light path design and projection power, if desired playing ultra-wide picture
Width image/video content, or in the less interior space, carry out large area projection, or in relatively bright ring border when use
All restrictions can be there is, affect result of broadcast.
Therefore, prior art awaits further improving.
Summary of the invention
In view of above-mentioned weak point of the prior art, it is an object of the invention to provide the user the figure of a kind of many projections
As display packing and system thereof, overcoming optical projection system in prior art, especially intelligent miniature projector, the image being projected out is drawn
The defect such as face area is little or its brightness is low.
It is as follows that the present invention solves the technical scheme that technical problem used:
The method for displaying image of a kind of many projections, wherein, comprises the following steps:
A, opening sequence according to predetermined projecting cell, the projection picture preserved is projected by the projection arrangement of arrangement first
Display；
B, arrange posterior projection arrangement and obtain successively and be arranged in front the image that projection device goes out, using the image that obtains as
Merge or the target image of splicing, carry out described target image and Feature Points Matching image to be projected, and according to coupling knot
Fruit obtain described target image and image to be projected between homography matrix；
C, arrange posterior projection arrangement according to described homography matrix to image to be projected being adjusted after, by image to be projected with
Described target image carries out merging or tiled display.
The method for displaying image of described many projections, wherein, also includes before described step A:
A01, the communication connection set up between described at least two projection arrangement and clock synchronize.
The method for displaying image of described many projections, wherein, arranges posterior projection arrangement and passes through described in described step B
Photographic head obtains and is arranged in front the image that projection device goes out and includes:
B1, arrange posterior projection arrangement and obtained by photographic head and be arranged in front the image that projection device goes out, and obtain institute
State the pixel coordinate corresponding to each characteristic point in image.
The method for displaying image of described many projections, wherein, described step B includes:
Characteristic point in B2, respectively acquisition target image describes sub and described characteristic point image to be projected and describes son；
B3, utilize Feature Points Matching algorithm that 2 stack features points are described son to mate, obtain homography matrix.
The method for displaying image of described many projections, wherein, in described step C, projection arrangement completes throwing image to be projected
After shadow shows, startup is arranged in the projection arrangement of later and carries out target image and fusion image to be projected or concatenation,
It is sequentially completed whole fusion image to be projected or tiled display.
A kind of image display system of many projections, wherein, including:
First sectional image display module, for the opening sequence according to predetermined projecting cell, the projection arrangement of arrangement first
The projection picture preserved is carried out Projection Display；
Images match module, obtains successively and is arranged in front, for arranging posterior projection arrangement, the image that projection device goes out,
Using the image obtained as merging or the target image of splicing, carry out described target image and characteristic point image to be projected
Join, and according to matching result obtain described target image and image to be projected between homography matrix；
Anastomosing and splicing module, is used for arranging posterior projection arrangement and is adjusted image to be projected according to described homography matrix
After, carry out merging or tiled display with described target image by image to be projected.
The image display system of described many projections, wherein, described system also includes:
Synchronized links module, synchronizes for setting up the communication connection between described at least two projection arrangement and clock.
The image display system of described many projections, wherein, described images match module also includes:
Pictorial information acquiring unit, is used for arranging posterior projection arrangement and is arranged in front projection device by photographic head acquisition
The image gone out, and obtain in described image the pixel coordinate corresponding to each characteristic point..
The image display system of described many projections, wherein, described images match module includes:
Characteristic point acquiring unit, describes sub and described feature image to be projected for the characteristic point obtained in target image respectively
Point describes son；
Matching primitives unit, is used for utilizing Feature Points Matching algorithm that 2 stack features points are described son and mates, singly answered square
Battle array.
The image display system of described many projections, wherein, also includes in described anastomosing and splicing module:
Projecting cell successively, after the projection arrangement for being arranged in front completes Projection Display image to be projected, startup is arranged in
The projection arrangement of one carries out target image and fusion image to be projected or concatenation, is sequentially completed whole image to be projected
Fusion or tiled display.
Beneficial effect, the invention provides method for displaying image and the system thereof of a kind of many projections, by arrangement first
Projection arrangement carries out Projection Display to the projection picture preserved；Arrange the acquisition of posterior projection arrangement and be arranged in front projection arrangement throwing
The image information that shadow goes out, successively using obtain image as merge or splicing target image, carry out described target image with
Feature Points Matching image to be projected, and obtain homography matrix according to matching result, according to described homography matrix, described waiting is thrown
After shadow image is adjusted, carry out merging or tiled display with described target image by image to be projected.Side of the present invention
Method and system thereof, during by multiple stage projector collaborative work, utilize machine vision image algorithm, automatically repair orthographic view, make
Be capable of playing ultra-wide picture, oversized picture under multiple stage machine simultaneously duty, improve the functions such as projection brightness, for
The image that family utilizes micro projector to carry out ultra-wide, super large or height picture carries out Projection Display, it is provided that convenient.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the method for displaying image of a kind of many projections of the present invention.
Fig. 2 is the schematic diagram that in the method for the invention, the image under fusion mode shows.
Fig. 3 is the schematic diagram that in the method for the invention, the image under Splicing model shows.
Fig. 4 is the flow chart of steps of the concrete Application Example of projection picture under fusion mode in the method for the invention.
Fig. 5 is the flow chart of steps of the concrete Application Example of projection picture under Splicing model in the method for the invention.
Fig. 6 is the theory structure schematic diagram of system of the present invention.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention further describes.Should be appreciated that specific embodiment described herein is used only for explaining the present invention, and need not
In limiting the present invention.
The invention provides the method for displaying image of a kind of many projections, as it is shown in figure 1, said method comprising the steps of:
S1, putting in order according to predetermined projection, the projection arrangement of arrangement first carries out Projection Display to the image preserved.
Put in order according to predetermined projection, first carry out the projection arrangement arranging first and the image preserved in it is carried out
Projection Display.Concrete, described projection put in order into: according in sectional image in middle position image to be projected from top to bottom,
From left to right, successively sectional image is carried out tiled display, or can also be according to being positioned at dividing of centre from image to be projected
District's image starts, and carries out being adjacent the splicing of sectional image successively.If projection for whole image, can be according to projection arrangement
Between position relationship project the setting that puts in order accordingly.
It is envisioned that by general image image to be projected (when needs at least two projection arrangement projects same simultaneously
During one image, will multiple identical images blend) or by divide at least two sectional image (when needs by scheme
As being stitched together, when playing same image, the most multiple sectional image are spliced into a general image) distinguish corresponding preservation
In projection arrangement, form a projected array.
Described projection arrangement be projector or other can carry out the equipment of image projection.Owing to the present invention to solve
Problem be the problem that region is little and brightness is low of image projection, legal process the most of the present invention is used in mini domestic intelligence and throws
On shadow instrument, effect is the most obvious.
S2, arrange posterior projection arrangement and obtain successively and be arranged in front the image that projection device goes out, the figure that will obtain
As merging or the target image of splicing, carry out described target image and Feature Points Matching image to be projected, and according to
Matching result obtain described target image and image to be projected between homography matrix；
Owing to can be projected out arranging the sectional image of first in step sl, the most in this step with this image for target figure
Picture, resolves the image on target image, obtains its characteristic point, and by the characteristic point that obtains with image to be projected on spy
Levy and a little mate, so that it is determined that to adjustment parameter image to be projected so that it is well can splice with target image
Or merge.
Concrete, arrange posterior projection arrangement described in this step and be arranged in front projection arrangement throwing by photographic head acquisition
The image that shadow goes out includes:
S21, arrange posterior projection arrangement and obtained by photographic head and be arranged in front the image that projection device goes out, and obtain institute
State the pixel coordinate corresponding to each characteristic point in image.
S22, respectively obtain the characteristic point in target image describe son and this projection arrangement internal preserve image to be projected
Characteristic point describe son；
Common methods has SURF, SIFT, Harris etc..
Below as a example by Harris characteristic point, the acquisition methods that characteristic point describes son is described in detail.
Harris Corner Detection Algorithm is a kind of some feature extraction operator based on signal, and its thought is in the picture
Design a local detection window, when this window makees minute movement in all directions, investigate the average energy change of window, when
When this energy change value exceedes the threshold value of setting, just the central pixel point of window is extracted as angle point.Harris feature point detection
Formula is:
；
Wherein, w (x, y) is window function,Grad for gradation of image.W (y) may be used by x
For rectangular window or Gaussian window.
For each little displacement (u, v), detection formula can be expressed as by bilinear approximation:
, wherein；If k1, k2 are matrix M
Two eigenvalues, then can represent the curvature of local autocorrelation function.
The receptance function being used for calculating angle point in practice can be write as:
；
Wherein det (M)=k1 × k2, trace (M)=k1+k2.When the determinant of certain matrix of areas M is the biggest, then show that this is
Article one, limit or an angle point, coef typically takes empirical value 0.04.Therefore the feature of target image can be obtained by above-mentioned function
Value describes son.
S23, utilize Feature Points Matching algorithm that 2 stack features points are described son to mate, obtain homography matrix.Existing skill
In art, 2 stack features points being described son and mates, common attribute point matching algorithm has Brute-force algorithm, Hausdorff
Distance method etc..
Here as a example by Brute-force algorithm, its matching process is described in detail, Brute-Force algorithm
Referred to as BF algorithm, also known as simple match algorithm, its basic ideas are: from feature point set A from the beginning of first characteristic point a1
Compare with first characteristic point b1 in feature point set B, if equal, then continue to compare one by one follow-up characteristic point；Otherwise from spy
Levy second characteristic point of point set B to start first characteristic point with feature point set A again and compare.By that analogy, if from
The ith feature point of feature point set B starts, and each characteristic point is equal with the character pair point in feature point set A successively, then mate
Success；Otherwise, it fails to match.
After coupling completes, then obtain homography matrix according to matching result, concrete:
Coupling evaluation function is commonly used Euclidean distance and is calculated.If feature is n-dimensional vector, the sub-a of feature and the sub-b of feature European away from
From for:
Homography matrix H can be obtained according to matching result.
S3, arrange posterior projection arrangement according to described homography matrix to image to be projected being adjusted after, by be projected
Image and described target image carry out merging or tiled display.
It is arranged in the second sectional image and obtains the target image information being projected out of the first sectional image, and by described target
Image information is mated with its internal information image to be projected preserved, and judges that target image is with to be matched by matching result
Sectional image or general image between homography matrix, then adjust image to be projected according to described homography matrix
Whole, and to image to be projected carrying out Projection Display after adjusting.
The specific algorithm of homography matrix is as follows:
On diverse location and angle, by each target characteristic point on target image, respectively with
WithRepresent its projected pixel coordinate at position A and position B, whereinWithIt is respectively from target image and the middle pixel coordinate obtained image to be projected.Through geometrical analysis it is known that two
By following matrix between personIt is associated:, wherein,Represent the unknown
Depth ratio signal.Above formula obtains after launching to arrange:
；
For each reference point, according to above-mentioned expression formula, the pixel coordinate utilizing its correspondence can be to determine matrix's
Estimate.Further, the Intrinsic Matrix utilizing video camera can be calculated following matrix:
；Wherein,；, andMeet with homography matrix H
, therefore can obtain homography matrix H by above-mentioned calculating.
By calculating gained homography matrix H, treat project content and carry out image conversion, i.e. treat throwing according to homography matrix H
Shadow image carries out translating and perspective transform；Image projection after process can be spliced with other projector content perfections.Institute
Stating perspective projection General Transformations formula is: X '=HX, and wherein X ' is pixel coordinate after correction, and X is correction preceding pixel coordinate.
Therefore according to above-mentioned transformation for mula just can according to the pixel coordinate of image after conversion, to image to be projected enter
Row is corresponding to be adjusted, thus mutually splices image to be projected with target image.
The synchronization of image temporal is directly play, then before described step S1 also in order to realize projection arrangement in said method
Including:
S01, the communication connection set up between described at least two projection arrangement and clock synchronize.
Connect, then when being arranged in front owing to establishing the communication between the projection arrangement that in projected array, projection sequence is connected
Projection arrangement complete Projection Display after, can notify to arrange projection arrangement following closely in time and open and merge or splicing behaviour
Make, and also clock can be kept Tong Bu with target image on its projection picture.
Owing to, in the method for the invention, projection mode can be to be divided into multiple by an image, utilizes multiple projection
Device carry out splicing projection, can be that same general image is projected by multiple projection arrangement, the most described step S1 it
Before also include:
S02, judge that Current projection pattern is Splicing model or fusion mode；If Splicing model, then perform step S02, no
Division operation is not carried out to image to be projected；
S02, divide number according to the number of projected array or predetermined image and divide image to be projected, obtain to be projected
The sectional image of image.
The projection mode selecting user judges, as Splicing model, then will need according to the projection being connected by communication
Device number, or preset projection arrangement number image is divided, if fusion mode, then need not treat projection
As dividing, only the projection arrangement merged is merged number and be configured.
After the projection arrangement being arranged in front in described step S3 completes Projection Display, start next projection arrangement and perform step
Rapid target image and fusion image to be projected or concatenation, after being sequentially completed whole fusion image to be projected or splicing
Clock simultaneous display.
The method of the invention, make use of and utilize machine vision correction algorithm, automatically revises the projection picture of projector, makes
All can must splice or overlapping with the image perfection of other projector playing projector in angle more freely, so that
When number of projectors is more than 2, it is possible to realize the broadcasting ultra-wide picture that conventional projector cannot realize, oversized picture, improve projection
The functions such as brightness, it is therefore envisaged that projection arrangement disclosed in this invention its need to have conventional projector hardware foundation it
Outward, in addition it is also necessary to add communication equipment, image capture device, arithmetic processor and related hardware.
Below as a example by two kinds of different projection mode of its specific embodiment, it is further described in detail.
When as described in Figure 2, a general image 10 being projected in the method for the invention 2 projection arrangements 20
Perspective view, its be by use two projection arrangements same image is projected, thus increase this projection as
Brightness.
Concrete, its steps flow chart as shown in Figure 4:
H11, the communication set up between two projection arrangements connect, and keep clock information to synchronize.
H12, the general image of projection to be fused is saved in projection arrangement.
H13, first opening one of them projection arrangement, the general image saving it in inside carries out Projection Display.
H14, second projection arrangement, obtain the image information projected by photographic head, by it with preservation within it
The image to be projected of portion mates, and obtains the homography matrix between its most image to be projected and image projected.
Projection picture is adjusted by H15, second projection arrangement according to homography matrix so that it is with the image phase projected
Merge.
If during it is envisioned that the projection arrangement mutually merging projection is multiple, method step is identical, it is only to arrange
Good projection sequence, and calculate image to be projected and homography matrix between projection picture successively, and according to described homography matrix
It is adjusted image to be projected, thus realizes the splicing between projection picture or fusion.
Same, the invention also discloses a kind of method that many projections are mutually spliced into bigger or wider image, in fact
Execute illustration to be intended to, as it is shown on figure 3, four projection arrangements project a sectional image respectively, when these four projection device go out
Image mosaic together time, then can form the image of a bigger picture, concrete, its steps flow chart as shown in Figure 5:
H21, the communication set up between four projection arrangements connect, and keep clock information to synchronize.
H22, it is divided into the big sectional image such as four by image to be projected, and four sectional image are saved in throwing successively
In image device.
H23, first opening one of them projection arrangement, the general image saving it in inside carries out Projection Display.Due to
In the present embodiment, it is provided with four projection arrangements, then could be arranged to first open the projection arrangement of projection upper left sectional image.
H24, second projection arrangement, obtain the image information projected by photographic head, by it with preservation within it
The general image in portion mates, and obtains the homography matrix between image that is the most image to be projected and that projected.Preserve upper right
With the projection arrangement of the sectional image of lower-left, opening and obtain the information characteristics of upper left sectional image, what calculating was preserved divides
District's image mosaic is to the homography matrix on target image.
H15, second projection arrangement, namely lower-left or the projection arrangement of upper right, according to homography matrix to projection picture
It is adjusted so that it is blend with the image projected.
H16, according to putting in order clockwise or counter-clockwise, successively sectional image is carried out Projection Display, finally real
The display of existing whole image.
The method of Fig. 3 and Fig. 4 is only only for example use, can realize multiple projection arrangement in a particular embodiment simultaneously and throw
The image that shadow goes out blends, it is also possible to be that individual combination is spliced picture together.
The present invention, on the basis of disclosing said method, additionally provides the image display system of a kind of many projections, such as Fig. 6
Shown in, described system includes:
First sectional image display module 110, for the opening sequence according to predetermined projecting cell, the projection dress of arrangement first
Put the projection picture to preserving and carry out Projection Display；Its function is as described in step S1.
Images match module 120, is used for arranging posterior projection arrangement and obtains successively and be arranged in front projection device and go out
Image, using obtain image as merge or splicing target image, carry out described target image with image to be projected
Feature Points Matching, and according to matching result obtain described target image and image to be projected between homography matrix；Its function is such as
Described in step S2.
Anastomosing and splicing module 130, is used for arranging posterior projection arrangement according to described homography matrix to described figure to be projected
After being adjusted, carry out merging or tiled display with described target image by image to be projected.Its function is as described in step S3.
Described system also includes:
Synchronized links module, synchronizes for setting up the communication connection between described at least two projection arrangement and clock.
Described images match module also includes:
Pictorial information acquiring unit, is used for arranging posterior projection arrangement and is arranged in front projection device by photographic head acquisition
The image gone out, and obtain in described image the pixel coordinate corresponding to each characteristic point.
Described images match module includes:
Characteristic point acquiring unit, describes sub and described feature image to be projected for the characteristic point obtained in target image respectively
Point describes son；
Matching primitives unit, is used for utilizing Feature Points Matching algorithm that 2 stack features points are described son and mates, singly answered square
Battle array.
Described anastomosing and splicing module also includes:
Projecting cell successively, after the projection arrangement for being arranged in front completes Projection Display image to be projected, startup is arranged in
The projection arrangement of one carries out target image and fusion image to be projected or concatenation, is sequentially completed whole image to be projected
Fusion or tiled display.
The invention provides method for displaying image and the system thereof of a kind of many projections, by by overall diagram image to be projected
Picture or at least two sectional image divided are saved in the corresponding projection arrangement of at least two；According to predetermined projection arrangement
Sequentially, the projection arrangement of arrangement first carries out Projection Display to the image preserved；Arrange posterior projection arrangement to carry out successively: obtain
Take projected target image information, the target image information of acquisition is carried out spy with its internal information image to be projected preserved
Levy Point matching, calculate image to be projected relative to the homography matrix of target image, according to described homography matrix to image to be projected
After being adjusted, carry out fusion or the tiled display of projection picture.Method of the present invention and system thereof, projected by multiple stage
During instrument collaborative work, utilize machine vision image algorithm, automatically repair orthographic view so that under multiple stage machine duty simultaneously
It is capable of playing ultra-wide picture, oversized picture, improves the functions such as projection brightness, utilize micro projector to surpass for user
The image of width, super large or height picture carries out Projection Display, it is provided that convenient.
It is understood that for those of ordinary skills, can be according to technical scheme and send out
Bright design in addition equivalent or change, and all these change or replace the guarantor that all should belong to appended claims of the invention
Protect scope.
Claims (10)
1. the method for displaying image of projection more than a kind, it is characterised in that comprise the following steps:
A, opening sequence according to predetermined projecting cell, the projection picture preserved is projected by the projection arrangement of arrangement first
Display；
B, arrange posterior projection arrangement and obtain successively and be arranged in front the image that projection device goes out, using the image that obtains as
Merge or the target image of splicing, carry out described target image and Feature Points Matching image to be projected, and according to coupling knot
Fruit obtain described target image and image to be projected between homography matrix；
C, arrange posterior projection arrangement according to described homography matrix to image to be projected being adjusted after, by image to be projected with
Described target image carries out merging or tiled display.
The method for displaying image of many projections the most according to claim 1, it is characterised in that also include before described step A:
A01, the communication connection set up between described at least two projection arrangement and clock synchronize.
The method for displaying image of many projections the most according to claim 2, it is characterised in that arrange described in described step B
Posterior projection arrangement is obtained by photographic head and is arranged in front the image that projection device goes out and includes:
B1, arrange posterior projection arrangement and obtained by photographic head and be arranged in front the image that projection device goes out, and obtain institute
State the pixel coordinate corresponding to each characteristic point in image.
The method for displaying image of many projections the most according to claim 3, it is characterised in that described step B includes:
Characteristic point in B2, respectively acquisition target image describes sub and described characteristic point image to be projected and describes son；
B3, utilize Feature Points Matching algorithm that 2 stack features points are described son to mate, obtain homography matrix.
The method for displaying image of many projections the most according to claim 4, it is characterised in that projection arrangement in described step C
After completing Projection Display image to be projected, startup is arranged in the projection arrangement of later and carries out target image with image to be projected
Fusion or concatenation, be sequentially completed whole fusion image to be projected or tiled display.
6. the image display system of projection more than a kind, it is characterised in that including:
First sectional image display module, for the opening sequence according to predetermined projecting cell, the projection arrangement of arrangement first
The projection picture preserved is carried out Projection Display；
Images match module, obtains successively and is arranged in front, for arranging posterior projection arrangement, the image that projection device goes out,
Using the image obtained as merging or the target image of splicing, carry out described target image and characteristic point image to be projected
Join, and according to matching result obtain described target image and image to be projected between homography matrix；
Anastomosing and splicing module, is used for arranging posterior projection arrangement and is adjusted image to be projected according to described homography matrix
After, carry out merging or tiled display with described target image by image to be projected.
The image display system of many projections the most according to claim 6, it is characterised in that described system also includes:
Synchronized links module, synchronizes for setting up the communication connection between described at least two projection arrangement and clock.
The image display system of many projections the most according to claim 7, it is characterised in that described images match module is also wrapped
Include:
Pictorial information acquiring unit, is used for arranging posterior projection arrangement and is arranged in front projection device by photographic head acquisition
The image gone out, and obtain in described image the pixel coordinate corresponding to each characteristic point.
The image display system of many projections the most according to claim 8, it is characterised in that described images match module bag
Include:
Characteristic point acquiring unit, describes sub and described feature image to be projected for the characteristic point obtained in target image respectively
Point describes son；
Matching primitives unit, is used for utilizing Feature Points Matching algorithm that 2 stack features points are described son and mates, singly answered square
Battle array.
The image display system of many projections the most according to claim 9, it is characterised in that in described anastomosing and splicing module
Also include:
Projecting cell successively, after the projection arrangement for being arranged in front completes Projection Display image to be projected, startup is arranged in
The projection arrangement of one carries out target image and fusion image to be projected or concatenation, is sequentially completed whole image to be projected
Fusion or tiled display.
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| CN110538448A (en) * | 2019-09-05 | 2019-12-06 | 张世斌 | Bowling interactive projection system |
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| CN110538448B (en) * | 2019-09-05 | 2021-05-14 | 张世斌 | Bowling interactive projection system |
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| CN113225429A (en) * | 2021-05-19 | 2021-08-06 | Tcl通讯（宁波）有限公司 | Display effect optimization method and system and intelligent terminal |
| CN113506492A (en) * | 2021-06-28 | 2021-10-15 | 蕉乐教育科技(上海)有限公司 | Projection device and full-width piano keyboard picture projection method thereof |
| CN114827562A (en) * | 2022-03-11 | 2022-07-29 | 深圳海翼智新科技有限公司 | Projection method, projection device, projection equipment and computer storage medium |
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