CN106604003A - Method and system for realizing curved-surface curtain projection via short-focus projection - Google Patents
Method and system for realizing curved-surface curtain projection via short-focus projection Download PDFInfo
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- CN106604003A CN106604003A CN201610990242.9A CN201610990242A CN106604003A CN 106604003 A CN106604003 A CN 106604003A CN 201610990242 A CN201610990242 A CN 201610990242A CN 106604003 A CN106604003 A CN 106604003A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000009877 rendering Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/08—Projecting images onto non-planar surfaces, e.g. geodetic screens
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Abstract
The invention discloses a method and system for realizing curved-surface curtain projection via short-focus projection. The method comprises that related parameters of a curved-surface curtain are obtained, a curved-surface model corresponding to the curved-surface curtain is established according to the related parameters, and an image which need projecting serves as a 2D texture image and mapped to the curved-surface model; the texture image is processed by simulated the position relation between a projector and the curved-surface curtain; and the processed image is projected onto the curved-surface curtain. According to the invention, secondary processing is carried out on images of projection equipment via OpenGL, so that the projected image can effectively correct distortion caused by direct projection on the curved-surface curtain, the problem that images cannot be projected on the curved-surface curtain via short-focus projection is overcome, the application range of short-focus projection equipment is widened, and a better watching effect is provided for users.
Description
Technical field
The present invention relates to projector equipment technical field, the method that the projection of curved surface curtain is realized in more particularly to a kind of short focus projection
And system.
Background technology
Short focus are projected and Curved screen all has become current focus.Short focus projection has very short projection ratio, from off screen
Picture can be projected on giant-screen at several inches of scene plot face.Do not appear in be walked about before projector and block the feelings of projected picture
Condition.Curved surface curtain complies fully with the engineering requirements of human eyeball because of its radian so that the experience of viewing is more natural, it is possible to achieve
More excellent visible angle and more outstanding telepresenc.Being projected on general curtain yet with optical factor short focus can be with
Normal picture is projected out, image can be distorted when projecting to curved surface curtain.So as to short focus projection cannot throw image
Shadow limits the use range of short focus projector equipment on curved surface curtain.
Thus prior art could be improved and improve.
The content of the invention
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, there is provided a kind of short focus projection is realized bent
The method and system of face curtain projection, short focus cannot be limited to solve existing short focus projection by image projection on curved surface curtain
The problem of the use range of projector equipment.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is as follows：
The method that curved surface curtain is projected is realized in a kind of short focus projection, and it includes：
The relevant parameter of curved surface curtain is obtained, and the corresponding surface model of the curved surface curtain is set up according to the relevant parameter,
Wherein, the relevant parameter includes radian, radius and the height of curved surface curtain；
The image of projection will be needed as 2 d texture image pinup picture to surface model；
Simulated projections machine is processed texture image with the position relationship of curved surface curtain, and by the image projection after process in song
On the curtain of face.
The method that curved surface curtain is projected is realized in the short focus projection, wherein, the relevant parameter for obtaining curved surface curtain, and
The corresponding surface model of the curved surface curtain is set up according to the relevant parameter, wherein, the relevant parameter includes curved surface curtain
Radian, radius and height specifically include;
The relevant parameter of curved surface curtain is obtained, wherein, the relevant parameter includes radian, radius and the height of curved surface curtain；
Cylindrical coordinate system is set up on the curved surface curtain, and the curved surface curtain is divided into into m rows n row grids；
The apex coordinate P of the m rows n row grid is obtained respectively in cylindrical coordinate system according to the relevant parameter of curved surface curtain
（X,Y,Z）, and surface model is generated according to the apex coordinate.
The method that curved surface curtain is projected is realized in the short focus projection, wherein, the apex coordinate P（X,Y,Z）For：
X=r*cosθ；Y=r*sinθ;Z=z；
Wherein, r is subsequent corrosion, θ be the radian of P points and origin line and its be between 0 and the radian of curved surface curtain；Z is P
Point is highly and z is less than the height of curved surface curtain.
The method that curved surface curtain is projected is realized in the short focus projection, wherein, it is described to need the image of projection as two dimension
Texture image pinup picture is specifically included to surface model：
The image for needing projection is divided into into m rows n row grids；
Set up and the one-to-one texture coordinate of each apex coordinate of surface model；
According to the apex coordinate and texture coordinate by the image pinup picture for needing projection to surface model.
The method that curved surface curtain is projected is realized in the short focus projection, wherein, the position of the simulated projections machine and curved surface curtain
Put relation pair texture image to be processed, and the image projection after process is specifically included on curved surface curtain：
Simulation short focus projector needs the surface model of projected image pinup picture to carry out wash with watercolours with the position relationship of curved surface curtain to having
Dye；
In the image projection and curved surface curtain of the needs projection after rendering.
The system that curved surface curtain is projected is realized in a kind of short focus projection, and it includes：
Acquisition module, for obtaining the relevant parameter of curved surface curtain, and sets up the curved surface curtain pair according to the relevant parameter
The surface model answered, wherein, the relevant parameter includes radian, radius and the height of curved surface curtain；
Pinup picture module, for the image using projection is needed as 2 d texture image pinup picture to surface model；
Projection module, is processed texture image for simulated projections machine with the position relationship of curved surface curtain, and after processing
Image projection on curved surface curtain.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the acquisition module is specifically included：
Acquiring unit, for obtaining the relevant parameter of curved surface curtain, wherein, the radian of the relevant parameter including curved surface curtain,
Radius and height；
Unit is set up, for setting up cylindrical coordinate system on the curved surface curtain, and the curved surface curtain m rows n row is divided into into
Individual grid；
Signal generating unit, for obtaining the m rows n row grid respectively in cylindrical coordinate system according to the relevant parameter of curved surface curtain
Apex coordinate P（X,Y,Z）, and surface model is generated according to the apex coordinate.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the apex coordinate P（X,Y,Z）For：
X=r*cosθ；Y=r*sinθ;Z=z；
Wherein, r is subsequent corrosion, θ be the radian of P points and origin line and its be between 0 and the radian of curved surface curtain；Z is P
Point is highly and z is less than the height of curved surface curtain.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the pinup picture module is specifically included：
Division unit, for the image for needing projection to be divided into into m rows n row grids；
Creating unit, for setting up and the one-to-one texture coordinate of each apex coordinate of surface model；
Pinup picture unit, for according to the apex coordinate and texture coordinate by the image pinup picture for needing projection to curved die
Type.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the projection module is specifically included：
Rendering unit, for simulating short focus projector with the position relationship of curved surface curtain to the song for needing projected image pinup picture
Surface model is rendered；
Projecting cell, the image projection and curved surface curtain for the needs projection after rendering.
Beneficial effect：Compared with prior art, the invention provides the side that curved surface curtain is projected is realized in a kind of projection of short focus
Method and system, methods described includes：The relevant parameter of curved surface curtain is obtained, and the curve curtain is set up according to the relevant parameter
The corresponding surface model of cloth, using the image for needing projection as 2 d texture image pinup picture to surface model；Simulated projections
Machine is processed texture image with the position relationship of curved surface curtain, and by the image projection after process on curved surface curtain.This
Invention is by the way that the picture of projector equipment is carried out after after-treatment with OpenGL so that the picture for projecting can be very good to rectify
The distortion being just projected directly on curved surface curtain, realizing short focus projection cannot be by image projection on curved surface curtain, on the one hand
The use range of short focus projector equipment is extended, on the other hand more preferable viewing effect is brought to user.
Description of the drawings
Fig. 1 realizes the flow chart that the method that curved surface curtain is projected preferably is implemented for the short focus projection that the present invention is provided.
Fig. 2 realizes the structure principle chart of the system that curved surface curtain is projected for the short focus projection that the present invention is provided.
Specific embodiment
The present invention provides a kind of projection of short focus and realizes the method and system that curved surface curtain is projected, for make the purpose of the present invention,
Technical scheme and effect are clearer, clear and definite, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.Should
Understand, specific embodiment described herein only to explain the present invention, is not intended to limit the present invention.
In the present invention, using the suffix of such as " module ", " part " or " unit " for being used to represent element only for favourable
In the explanation of the present invention, itself do not have specific meaning.Therefore, module ", " part " or " unit " can mixedly make
With.
Below in conjunction with the accompanying drawings, by the description to embodiment, the content of the invention is described further.
Fig. 1 is refer to, Fig. 1 realizes the preferred embodiment of curved surface curtain projecting method for the short focus projection that the present invention is provided
Flow chart.Methods described includes：
S100, the relevant parameter for obtaining the curved surface curtain, and it is corresponding to set up the curved surface curtain according to the relevant parameter
Surface model, wherein, the relevant parameter includes radian, radius and the height of curved surface curtain.
Specifically, the relevant parameter for obtaining curved surface curtain refer to obtain the radian of the curved surface curtain, radius and
Highly.The relevant parameter of the curved surface curtain can be pre-stored within short focus projector equipment, also can be that user is using
The relevant parameter of the curved surface curtain arranged during the short focus projection device curved surface curtain.It is worth explanation, the curved surface curtain
Height refer to the height of curved surface curtain viewing area plane.
After the relevant parameter for getting curved surface curtain, can be according to the relevant parameter of the curved surface curtain in the song
Three-dimensional module is set up on the curtain of face, in order to subsequently process projected image using OpenGL softwares.In the present embodiment,
It is described to obtain the relevant parameter of the curved surface curtain, and the corresponding curved die of the curved surface curtain is set up according to the relevant parameter
Type may include steps of：
S101, the relevant parameter for obtaining curved surface curtain, wherein, the radian of the relevant parameter including curved surface curtain, radius and
Highly；
S102, cylindrical coordinate system is set up on the curved surface curtain, and the curved surface curtain is divided into into a m rows n row grids.
S103, the top for obtaining the m rows n row grid respectively in cylindrical coordinate system according to the relevant parameter of curved surface curtain
Point coordinates P（X,Y,Z）, and surface model is generated according to the apex coordinate.
Specifically, the curved surface of the curved surface curtain can regard the part on cylinder as, so as to when measurement curved surface curtain
By the radian of curved surface curtain, radius and the relevant parameter that constitutes of height, the radian of such as curved surface curtain is 11.27 degree, radius is
12192 millimeters, 1245 millimeters of the height of viewing area plane.Then using the radian of curved surface curtain, radius and height parameter, can
Fastened with the built-in vertical cylindrical coordinates of curved surface curtain, and the corresponding curved die of surface model is set up in the cylindrical coordinate system
Type.
The surface model building process refers to for the curved surface curtain to be divided into some grids, obtains all grids
The process of apex coordinate array, it is specifically as follows：First curved surface is horizontally cut into into m parts, is perpendicularly cut into n parts, wherein, m
It is positive integer with n.Will curved surface curtain be divided into m*n grid, and the grid is equal for the arc length of each edge.By song
Face curtain is divided into after m*n grid, according to cylindrical coordinate system inner vertex coordinate computation method, obtains the summit of each grid
Coordinate P (X, Y, Z), wherein, X=r*cos θ；Y=r*sinθ;Z=z;R is subsequent corrosion, θ be P points with the radian of origin line and
It is in 0 between the radian of curve screens；Z is the height that P points height and z are less than curve screens.Curve curtain is stated herein above
The relevant parameter of cloth is that the value to r, θ and z is described further, and the r is subsequent corrosion, i.e. r=12192 millimeters；θ values
From 0 ~ 11.27 degree, z values are from 0-1245.The all mesh vertex coordinates for obtaining constitute the apex coordinate number of the surface model
Group.
S200, the image for projecting needs are as 2 d texture image pinup picture to surface model.
Specifically, it is described will need projection image as 2 d texture refer to using it is described need projection image as
The texture of the threedimensional model of the surface model.It is described that 2 d texture image pinup picture value surface model specifically will be obtained described
The texture coordinate of 2 d texture, will pass through texture coordinate with model vertices coordinate array according to described by texture coordinate afterwards
Corresponding relation, by 2 d texture image pinup picture to surface model.It specifically may include steps of：
S201, the image for needing projection is divided into m rows n row grids；
S202, foundation and the one-to-one texture coordinate of each apex coordinate of surface model；
S203, according to the apex coordinate and texture coordinate by the image pinup picture for needing projection to surface model.
It is described the image for needing projection is divided into into m rows n row grids to refer to the image level that project and vertical
Cut in surface model identical number, that is, be horizontally cut into m parts, be perpendicularly cut into n parts, form m*n each edge
All equal grids of arc length.Due to texture coordinate it is unrelated with texture object size, so as to the value of texture coordinate operating specification is
[0,1], is represented using uv.Correspondingly, in OpenGL texture coordinate width from 0-1, height is also from 0-1, and according to OpenGL's
Texture rule, creates and the one-to-one texture coordinate array in curved surface curtain threedimensional model summit, according to the texture coordinate number
Group and apex coordinate array, by 2D texture images three dimensional stress process is carried out so that by the image pinup picture for needing projection to song
Surface model.It is worth explanation, the OpenGL（Open Graphics Library, shape library of increasing income）Graphic package interface, can
To call underlying graphics storehouse to process image.
The position relationship of S300, simulated projections machine and curved surface curtain is processed texture image, and by the figure after process
As being projected on curved surface curtain.
Specifically, first the position relationship of short focus projector and curved surface curtain is simulated in OpenGL, afterwards according to institute's rheme
The relation of putting goes surface model to be rendered, so to the image as the needs projection in texture mapping and surface model at
Reason, and by the image projection after process and curved surface curtain.
Exemplary, the simulated projections machine is processed texture image with the position relationship of curved surface curtain, and will place
Image projection after reason specifically can include on curved surface curtain：
The position relationship of S301, simulation short focus projector and curve screens needs the surface model of projected image pinup picture to enter to having
Row is rendered；
S302 will render after needs projection image projection with curve screens on.
The position relationship of the simulation short focus projector and curve screens is to the curved die for needing projected image pinup picture
Type carries out rendering being specifically as follows：Short focus are projected as camera first（Camera）, the position of curved surface curtain is short as object
The vision vector for being oriented camera of out-of-focus projection, passes through according to the vision vector of camera, object and camera
Matrix.setLookAtM (float[]rm,int rmoffset,float eyeX,float eyeY,float eyeZ,
float centerX, float centerY, float centerZ, float upX, float upY, float upZ)
Camera matrix is set.Described first group（EyeX, eyeY, eyeZ）It is camera in the position of three-dimensional system of coordinate, second group
（CenterX, centerY, centerZ）It is object in the position of three-dimensional system of coordinate；3rd group（UpX, upY, upZ）Camera is upwards
Three-dimensional coordinate.
Further, the short focus project to the application of curved surface curtain equivalent to the surface that a curved surface is observed in opengl.
The camera lens of short focus projection is equal to the camera positions of perspective projection view frustums in opengl.Short focus project the top of mean camber screen
Edge is equal to the top of perspective projection view frustums in opengl.The lower limb of short focus projection mean camber screen is equal in opengl thoroughly
Bottom depending on projecting view frustums.Left hand edge is equal to the left of perspective projection view frustums in opengl.Right hand edge is equal to
The right of perspective projection view frustums in opengl.The camera lens of short focus projection is equal to opengl to the distance of curved surface curtain plane
The near of middle perspective projection view frustums.So as to set curved surface curtain as camera nearly cutting face, short focus projection lens is to curved surface
Distance is the nearly cutting identity distance of video camera from by Matrix.frustumM (float [] m, int offset, float
Left, float right, float bottom, float top, float near, float far) perspective throwing is set
The cone volume matrix of shadow.Adjust the relevant parameter of opengl and threedimensional model in systems, come in simulating reality short focus projection and
The relation of curved surface curtain.The picture that will be projected is projected again after opengl after-treatments.Picture after process is thrown
Shadow can correct the distortion being projected in originally on Curved screen on curved surface curtain, just.So that can carry out on curved surface curtain
Normal viewing.It is worth explanation, the projection process is reversible, then the image projection after after-treatment to curved surface
On, just obtain the normal picture in visual angle.
Present invention also offers the system that curved surface curtain is projected is realized in a kind of short focus projection, as shown in Figure 2.It includes：
Acquisition module 100, for obtaining the relevant parameter of curved surface curtain, and sets up the curved surface curtain according to the relevant parameter
Corresponding surface model, wherein, the relevant parameter includes radian, radius and the height of curved surface curtain；
Pinup picture module 200, for the image using projection is needed as 2 d texture image pinup picture to surface model；
Projection module 300, is processed texture image for simulated projections machine with the position relationship of curved surface curtain, and will be processed
Image projection afterwards is on curved surface curtain.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the acquisition module is specifically included：
Acquiring unit, for obtaining the relevant parameter of curved surface curtain, wherein, the radian of the relevant parameter including curved surface curtain,
Radius and height；
Unit is set up, for setting up cylindrical coordinate system on the curved surface curtain, and the curved surface curtain m rows n row is divided into into
Individual grid；
Signal generating unit, for obtaining the m rows n row grid respectively in cylindrical coordinate system according to the relevant parameter of curved surface curtain
Apex coordinate P（X,Y,Z）, and surface model is generated according to the apex coordinate.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the apex coordinate P（X,Y,Z）For：
X=r*cosθ；Y=r*sinθ;Z=z；
Wherein, r is subsequent corrosion, θ be the radian of P points and origin line and its be between 0 and the radian of curved surface curtain；Z is P
Point is highly and z is less than the height of curved surface curtain.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the pinup picture module is specifically included：
Division unit, for the image for needing projection to be divided into into m rows n row grids；
Creating unit, for setting up and the one-to-one texture coordinate of each apex coordinate of surface model；
Pinup picture unit, for according to the apex coordinate and texture coordinate by the image pinup picture for needing projection to curved die
Type.
The system that curved surface curtain is projected is realized in the short focus projection, wherein, the projection module is specifically included：
Rendering unit, for simulating short focus projector with the position relationship of curved surface curtain to the song for needing projected image pinup picture
Surface model is rendered；
Projecting cell, the image projection and curved surface curtain for the needs projection after rendering.
In embodiment provided by the present invention, it should be understood that disclosed system and method, can pass through other
Mode is realized.For example, device embodiment described above is only schematic, and for example, the division of the module is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, such as multiple units or component can with reference to or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
Connect, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can according to the actual needs be selected to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in an embodied on computer readable and deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention each
The part steps of embodiment methods described.And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. it is various
Can be with the medium of store program codes.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. the method that curved surface curtain is projected is realized in a kind of short focus projection, it is characterised in that it includes：
The relevant parameter of curved surface curtain is obtained, and the corresponding surface model of the curved surface curtain is set up according to the relevant parameter,
Wherein, the relevant parameter includes radian, radius and the height of curved surface curtain；
The image of projection will be needed as 2 d texture image pinup picture to surface model；
Simulated projections machine is processed texture image with the position relationship of curved surface curtain, and by the image projection after process in song
On the curtain of face.
2. according to claim 1 the method that curved surface curtain is projected is realized in short focus projection, it is characterised in that the acquisition curved surface
The relevant parameter of curtain, and the corresponding surface model of the curved surface curtain is set up according to the relevant parameter, wherein, the correlation
Parameter includes that radian, radius and the height of curved surface curtain is specifically included;
The relevant parameter of curved surface curtain is obtained, wherein, the relevant parameter includes radian, radius and the height of curved surface curtain；
Cylindrical coordinate system is set up on the curved surface curtain, and the curved surface curtain is divided into into m rows n row grids；
The apex coordinate P of the m rows n row grid is obtained respectively in cylindrical coordinate system according to the relevant parameter of curved surface curtain
（X,Y,Z）, and surface model is generated according to the apex coordinate.
3. according to claim 2 the method that curved surface curtain is projected is realized in short focus projection, it is characterised in that the apex coordinate
P（X,Y,Z）For：
X=r*cosθ；Y=r*sinθ;Z=z；
Wherein, r is subsequent corrosion, θ be the radian of P points and origin line and its be between 0 and the radian of curved surface curtain；Z is P
Point is highly and z is less than the height of curved surface curtain.
4. according to claim 1 the method that curved surface curtain is projected is realized in short focus projection, it is characterised in that described to need to throw
The image of shadow is specifically included as 2 d texture image pinup picture to surface model：
The image for needing projection is divided into into m rows n row grids；
Set up and the one-to-one texture coordinate of each apex coordinate of surface model；
According to the apex coordinate and texture coordinate by the image pinup picture for needing projection to surface model.
5. according to claim 1 the method that curved surface curtain is projected is realized in short focus projection, it is characterised in that the simulated projections
Machine is processed texture image with the position relationship of curved surface curtain, and the image projection after process is concrete on curved surface curtain
Including：
Simulation short focus projector needs the surface model of projected image pinup picture to carry out wash with watercolours with the position relationship of curved surface curtain to having
Dye；
The image of the needs projection after rendering is projeced on curved surface curtain.
6. the system that curved surface curtain is projected is realized in a kind of short focus projection, it is characterised in that it includes：
Acquisition module, for obtaining the relevant parameter of curved surface curtain, and sets up the curved surface curtain pair according to the relevant parameter
The surface model answered, wherein, the relevant parameter includes radian, radius and the height of curved surface curtain；
Pinup picture module, for the image using projection is needed as 2 d texture image pinup picture to surface model；
Projection module, is processed texture image for simulated projections machine with the position relationship of curved surface curtain, and after processing
Image projection on curved surface curtain.
7. according to claim 6 the system that curved surface curtain is projected is realized in short focus projection, it is characterised in that the acquisition module
Specifically include：
Acquiring unit, for obtaining the relevant parameter of curved surface curtain, wherein, the radian of the relevant parameter including curved surface curtain,
Radius and height；
Unit is set up, for setting up cylindrical coordinate system on the curved surface curtain, and the curved surface curtain m rows n row is divided into into
Individual grid；
Signal generating unit, for obtaining the m rows n row grid respectively in cylindrical coordinate system according to the relevant parameter of curved surface curtain
Apex coordinate P（X,Y,Z）, and surface model is generated according to the apex coordinate.
8. according to claim 7 the system that curved surface curtain is projected is realized in short focus projection, it is characterised in that the apex coordinate
P（X,Y,Z）For：
X=r*cosθ；Y=r*sinθ；Z=z；
Wherein, r is subsequent corrosion, θ be the radian of P points and origin line and its be between 0 and the radian of curved surface curtain；Z is P
Point is highly and z is less than the height of curved surface curtain.
9. according to claim 6 the system that curved surface curtain is projected is realized in short focus projection, it is characterised in that the pinup picture module
Specifically include：
Division unit, for the image for needing projection to be divided into into m rows n row grids；
Creating unit, for setting up and the one-to-one texture coordinate of each apex coordinate of surface model；
Pinup picture unit, for according to the apex coordinate and texture coordinate by the image pinup picture for needing projection to curved die
Type.
10. according to claim 6 the system that curved surface curtain is projected is realized in short focus projection, it is characterised in that the projective module
Block is specifically included：
Rendering unit, for simulating short focus projector with the position relationship of curved surface curtain to the song for needing projected image pinup picture
Surface model is rendered；
Projecting cell, the image projection and curved surface curtain for the needs projection after rendering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990242.9A CN106604003B (en) | 2016-11-10 | 2016-11-10 | Method and system for realizing curved-surface curtain projection through short-focus projection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990242.9A CN106604003B (en) | 2016-11-10 | 2016-11-10 | Method and system for realizing curved-surface curtain projection through short-focus projection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106604003A true CN106604003A (en) | 2017-04-26 |
| CN106604003B CN106604003B (en) | 2020-09-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819226A (en) * | 2017-11-21 | 2019-05-28 | 深圳市Tcl高新技术开发有限公司 | Method, projection device and the computer readable storage medium projected on convex body |
| CN110163941A (en) * | 2018-07-16 | 2019-08-23 | 南京洛普科技有限公司 | A kind of image processing apparatus and image processing method for LED curved body |
| WO2019179168A1 (en) * | 2018-03-22 | 2019-09-26 | 深圳光峰科技股份有限公司 | Projection distortion correction method, device and system, and storage medium |
| CN111061421A (en) * | 2019-12-19 | 2020-04-24 | 北京澜景科技有限公司 | Picture projection method and device and computer storage medium |
| CN111813272A (en) * | 2020-05-29 | 2020-10-23 | 维沃移动通信有限公司 | Information input method and device and electronic equipment |
| WO2022095744A1 (en) * | 2020-11-09 | 2022-05-12 | 华为技术有限公司 | Vr display control method, electronic device, and computer readable storage medium |
| CN114900682A (en) * | 2022-06-06 | 2022-08-12 | 华中科技大学 | Three-dimensional LED curved surface display method and system based on three-dimensional structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04181486A (en) * | 1990-11-16 | 1992-06-29 | Nec Corp | Projection face setting system using polar coordinate |
| JP2002203237A (en) * | 2000-08-30 | 2002-07-19 | Usc Corp | Curved image conversion method and recording medium with the curved image conversion method recorded thereon |
| CN101221658A (en) * | 2007-12-20 | 2008-07-16 | 四川川大智胜软件股份有限公司 | Cylinder frame buffer texture re-labeling geometric correction method based on software |
| CN102014259A (en) * | 2010-11-17 | 2011-04-13 | 杭州华泰医疗科技有限公司 | Projective texture mapping-based oblique projection distortion correction method |
| CN104321803A (en) * | 2012-06-06 | 2015-01-28 | 索尼公司 | Image processing device, image processing method, and program |
| US20150193964A1 (en) * | 2014-01-07 | 2015-07-09 | Electronics And Telecommunications Research Institute | Real-time dynamic non-planar projection apparatus and method |
| CN105072430A (en) * | 2015-08-19 | 2015-11-18 | 海信集团有限公司 | Method and equipment for adjusting projected image |
| CN105825470A (en) * | 2016-03-10 | 2016-08-03 | 广州欧科信息技术股份有限公司 | Fisheye image correction method base on point cloud image |
-
2016
- 2016-11-10 CN CN201610990242.9A patent/CN106604003B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04181486A (en) * | 1990-11-16 | 1992-06-29 | Nec Corp | Projection face setting system using polar coordinate |
| JP2002203237A (en) * | 2000-08-30 | 2002-07-19 | Usc Corp | Curved image conversion method and recording medium with the curved image conversion method recorded thereon |
| CN101221658A (en) * | 2007-12-20 | 2008-07-16 | 四川川大智胜软件股份有限公司 | Cylinder frame buffer texture re-labeling geometric correction method based on software |
| CN102014259A (en) * | 2010-11-17 | 2011-04-13 | 杭州华泰医疗科技有限公司 | Projective texture mapping-based oblique projection distortion correction method |
| CN104321803A (en) * | 2012-06-06 | 2015-01-28 | 索尼公司 | Image processing device, image processing method, and program |
| US20150193964A1 (en) * | 2014-01-07 | 2015-07-09 | Electronics And Telecommunications Research Institute | Real-time dynamic non-planar projection apparatus and method |
| CN105072430A (en) * | 2015-08-19 | 2015-11-18 | 海信集团有限公司 | Method and equipment for adjusting projected image |
| CN105825470A (en) * | 2016-03-10 | 2016-08-03 | 广州欧科信息技术股份有限公司 | Fisheye image correction method base on point cloud image |
Non-Patent Citations (3)
| Title |
|---|
| PAUL BOURKE: "Transformations and Projections", 《HTTP: //BLOG. CSDN. NET/ZHANG11WU4/ARTICLE/DETAILS /47754035.HTML》 * |
| 张号，等: "一种多通道曲面投影系统的几何校正方法", 《系统仿真学报》 * |
| 罗海风: "可行性分析2：短焦投影仪投影至柱面幕布功能", 《HTTPS://WENKU.BAIDU.COM/VIEW/E326B1E60740BE1E640E9A09.HTML》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819226A (en) * | 2017-11-21 | 2019-05-28 | 深圳市Tcl高新技术开发有限公司 | Method, projection device and the computer readable storage medium projected on convex body |
| WO2019179168A1 (en) * | 2018-03-22 | 2019-09-26 | 深圳光峰科技股份有限公司 | Projection distortion correction method, device and system, and storage medium |
| CN110163941A (en) * | 2018-07-16 | 2019-08-23 | 南京洛普科技有限公司 | A kind of image processing apparatus and image processing method for LED curved body |
| CN111061421A (en) * | 2019-12-19 | 2020-04-24 | 北京澜景科技有限公司 | Picture projection method and device and computer storage medium |
| CN111813272A (en) * | 2020-05-29 | 2020-10-23 | 维沃移动通信有限公司 | Information input method and device and electronic equipment |
| WO2022095744A1 (en) * | 2020-11-09 | 2022-05-12 | 华为技术有限公司 | Vr display control method, electronic device, and computer readable storage medium |
| CN114900682A (en) * | 2022-06-06 | 2022-08-12 | 华中科技大学 | Three-dimensional LED curved surface display method and system based on three-dimensional structure |
| CN114900682B (en) * | 2022-06-06 | 2023-01-31 | 华中科技大学 | Three-dimensional LED curved surface display method and system based on three-dimensional structure |
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