CN108833893A - A kind of 3D rendering bearing calibration shown based on light field - Google Patents
A kind of 3D rendering bearing calibration shown based on light field Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of 3D rendering bearing calibration shown based on light field, including：The corresponding correction function of any anaglyph based on model to be shown, is corrected any anaglyph, obtains the correction image of any anaglyph；Wherein, the corresponding correction function of any anaglyph is obtained according to any anaglyph space-time function figure corresponding with any anaglyph；The correction image of whole anaglyphs of the model to be shown is encoded, correction coding image is obtained, the correction coding image is shown by light field display system.Method provided in an embodiment of the present invention is corrected anaglyph by the corresponding correction function of anaglyph, counteracts itself error of light field display system, improves the 3D rendering quality of light field display system, enhances user experience.
Description
Technical field
The present embodiments relate to light field field of display technology more particularly to a kind of 3D rendering corrections shown based on light field
Method.
Background technique
With the rapid development of science and technology, traditional two-dimensional surface display technology has much been unable to satisfy current each
Demand of the industry field for depth data and space multistory sense.More and more application fields, as medical imaging, science are ground
Study carefully, the outer space is explored, important teleconference and military affairs etc., it is desirable that can be realized the true reconstruction of three-dimensional scenic, so that seeing
The person of seeing can be more accurate capture relevant information, accurately carry out live judgement.
Free 3 D display technology can make viewer by naked eyes directly experience 3D vision, force 3-D image more
True display true picture.Light field shows one kind as Auto-stereo display, and representative is integration imaging Three-dimensional Display, by
IP (integral photography, integrated photography) technology that Lippmann is proposed develops, which can be spectators
The free stereo effect of full parallax is provided.It is a kind of important 3D display that light field, which is shown, and viewer helps glasses i.e. without wearing
It can watch stereo-picture.The 3D display can restore true 3D scene completely, have full parallax, full color and viewpoint continuous
Advantage.
Coded image is shown in light field display system as shown in Figure 1, liquid crystal display panel 101, and coded image is by a system
Column anaglyph is synthesized by mapping relations, and each lens correspond to equal number of picture in coded image in lens array 102
Prime number.Coded image is reflected by lens array, and 3 d light fields are rebuild in front of lens array, hologram functional screen 103 is placed
Suitable position, so that it may reproduce the three-dimensional scenic of record.
Compare previous integrated imaging system, although above-mentioned light field display system solves the problems, such as many, such as solves
Depth Inversion Problem improves collecting efficiency, simplifies system structure etc..But the brings error such as equipment, technique is still deposited
?：
1, due to technologic defect, there are certain errors for the manufacture craft of lens, so that object passes through lens imaging one
Surely there can be aberration, there are aberrations so that coded image is through the monocular disparity map that lens are formed in the sky, influence three-dimensional
Viewing effect.
2, due to manually-operated error, the distance between liquid crystal display panel and lens array, lens array and hologram functional
The distance between screen etc. is easy, and there are errors, so that coded image is through the monocular disparity map that lens are formed in the sky, there are pictures
Difference.
Summary of the invention
The embodiment of the present invention provides a kind of 3D rendering bearing calibration shown based on light field, shows to solve existing light field
There is error in the 3D rendering that system is shown.
On the one hand, the embodiment of the present invention provides a kind of 3D rendering bearing calibration shown based on light field, including：
The corresponding correction function of any anaglyph based on model to be shown, is corrected the anaglyph, obtains
The correction image of the anaglyph；Wherein, the corresponding correction function of the anaglyph is according to the anaglyph and the disparity map
As corresponding space-time function figure obtains；
The correction image of whole anaglyphs of model to be shown is encoded, correction coding image is obtained, will correct
Coded image is shown by light field display system.
On the other hand, the embodiment of the present invention provides a kind of 3D rendering correction system shown based on light field, including：
Image acquisition unit is corrected, for the corresponding correction function of any anaglyph based on model to be shown, to this
Anaglyph is corrected, and obtains the correction image of the anaglyph；Wherein, the corresponding correction function of the anaglyph is basis
Anaglyph space-time function figure corresponding with the anaglyph obtains；
Display unit is encoded, for encoding the correction image of whole anaglyphs of model to be shown, obtains school
Positive coded image shows correction coded image by light field display system.
Another aspect, the embodiment of the present invention provide a kind of 3D rendering calibration equipment shown based on light field, including processor,
Communication interface, memory and bus, wherein processor, communication interface, memory complete mutual communication by bus, place
Reason device can call the logical order in memory, to execute the 3D rendering bearing calibration shown as previously described based on light field.
In another aspect, the embodiment of the present invention provides a kind of computer readable storage medium, it is stored thereon with computer program,
The 3D rendering bearing calibration shown as previously described based on light field is realized when the computer program is executed by processor.
A kind of 3D rendering bearing calibration shown based on light field provided in an embodiment of the present invention, it is corresponding by anaglyph
Correction function is corrected anaglyph, counteracts itself error of light field display system, improves light field display system
3D rendering quality, enhances user experience.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of light field display system of the embodiment of the present invention；
Fig. 2 is a kind of flow diagram of 3D rendering bearing calibration shown based on light field of the embodiment of the present invention；
Fig. 3 is a kind of top view of light field display system of the embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of model to be shown of the embodiment of the present invention；
Fig. 5 is a kind of transition diagram of correction function of the embodiment of the present invention；
Fig. 6 is that a kind of 3D rendering shown based on light field of the embodiment of the present invention corrects the structural schematic diagram of system；
Fig. 7 is a kind of structural schematic diagram of 3D rendering calibration equipment shown based on light field of the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the viewing ratio of light field display system, the 3D effect that human eye is watched is optimal.It is shown by light field
Principle it is found that in viewing ratio, coded image will form equal with original anaglyph number in the sky by lens
Space-time function figure, and with anaglyph correspond.The anaglyph of space disparity map corresponding thereto is in ideal situation
Consistent, due to the presence of error in reality, the two can not be just the same, but if the two is more close, 3D seen by person
Picture quality is also just higher.Needle anaglyph as caused by error and the not quite identical problem of space-time function figure, the present invention
Embodiment provides a kind of 3D rendering bearing calibration shown based on light field, with reference to Fig. 2, a kind of 3D rendering school shown based on light field
Correction method, including：
201, the corresponding correction function of any anaglyph based on model to be shown is corrected the anaglyph,
Obtain the correction image of the anaglyph；Wherein, the corresponding correction function of any anaglyph is according to the anaglyph and to be somebody's turn to do
The corresponding space-time function figure of anaglyph obtains.
Herein, anaglyph is by the virtual camera in computer software from different perspectives to agreement model to be shown
It is acquired, the image sequence group with certain parallax of acquisition.After whole anaglyphs of model to be shown are encoded
Coded image is generated, herein, coded image is according to light field display system parameter, and recording for loading on liquid crystal display panel is to be shown
The image of model (3D) multi-direction information.After coded image is loaded on the liquid crystal display panel of light field display system, by really taking the photograph
Camera from different angles shoots the 3D rendering of light field display system imaging, the figure sequence with certain parallax of acquisition
Column group, that is, space-time function figure.It should be noted that virtual camera is consistent with the shooting angle of real camera, i.e., by virtually taking the photograph
The anaglyph that camera is shot from unspecified angle, corresponding one by real camera from the space-time function figure of the angle shot.
The corresponding correction function of any anaglyph is according to anaglyph space-time function corresponding with the anaglyph
What figure obtained, for characterizing the space corresponding with the anaglyph of the anaglyph as caused by itself error of light field display system
Error between disparity map.It, can be by correction function to the anaglyph after knowing the corresponding correction function of any anaglyph
It is corrected, is input to after light field display system as caused by light field display system accidentally with offsetting the correction image of anaglyph
Difference.
202, the correction image of whole anaglyphs of model to be shown is encoded, correction coding image is obtained, it will
Correction coding image is shown by light field display system.
In the embodiment of the present invention, anaglyph is corrected by anaglyph corresponding correction function, counteracts light
Itself error of field display system, improves the 3D rendering quality of light field display system, enhances user experience.
Based on the above embodiment, a kind of 3D rendering bearing calibration shown based on light field, 201, based on model to be shown
The corresponding correction function of any anaglyph, is corrected any anaglyph, obtains the correction image of any anaglyph,
Further include before：
Obtain the coordinate of each angle point and the corresponding space of the anaglyph in any anaglyph of model to be shown
The coordinate of each angle point in disparity map；By the coordinate of angle point each in anaglyph space-time function corresponding with the anaglyph
The coordinate of each angle point is fitted in figure, obtains the corresponding correction function of the anaglyph.
Herein, angle point is the point being preset on model to be shown, thus any angle point being directed in any anaglyph,
It is present in the corresponding angle point of the angle point in the corresponding space-time function figure of the anaglyph.Anaglyph and corresponding space-time function figure
There are many acquisition methods of middle angular coordinate, such as the Corner Detection based on gray level image, the Corner Detection based on bianry image
With the Corner Detection based on contour curve, the present invention is not especially limit this.
It further, will be in the coordinate of angle point each in any anaglyph space-time function figure corresponding with the anaglyph
The coordinate of each angle point is fitted, and is obtained the corresponding correction function of the anaglyph, is specifically included：
According to the following formula in the coordinate of each angle point in any anaglyph space-time function figure corresponding with the anaglyph
The coordinate of each angle point is fitted：
In formula, the quantity of angle point is (a+1) × (b+1) in anaglyph, the abscissa collection of each angle point in anaglyph
Close X=(x0,x1,x2,…,xa), the ordinate set Y=(y of each angle point in anaglyph0,y1,y2,...,yb)。
The quantity of angle point is equal with the quantity of angle point in anaglyph in the corresponding space-time function figure of anaglyph, space view
The abscissa set X'=(x' of each angle point in poor figure0,x'1,x'2,...,x'a), the vertical seat of each angle point in space-time function figure
Mark set Y'=(y'0,y'1,y'2,...,y'b)；T is natural number as big as possible, not to the value of t in the embodiment of the present invention
Make specific limit.
By the fitting of a polynomial in above formula, the abscissa of angle point is fitted in available anaglyph and space-time function figure
Coefficient sets K=(k0,k1,k2,...,kt), anaglyph and the ordinate of angle point in space-time function figure are fitted system set M=
(m0,m1,m2,...,mt).According to K and M, the corresponding correction function of the available anaglyph is as follows：
In formula, f (X) is the abscissa set of each angle point in the correction image of any anaglyph, and g (Y) is institute
State the ordinate set of each angle point in the correction image of any anaglyph.
Based on any of the above-described embodiment, a kind of 3D rendering bearing calibration shown based on light field, 201, it is based on mould to be shown
The corresponding correction function of any anaglyph of type, is corrected the anaglyph, obtains the correction image of the anaglyph,
Further include before：
Display model is treated by virtual camera array to be shot, and whole anaglyphs of model to be shown are obtained；
Whole anaglyphs are encoded, coded image is obtained and are shown by light field display system；By video camera to volume
Code image is shot by the 3D rendering that light display system is shown, obtains space-time function figure corresponding with each anaglyph
Picture.
Wherein, the position one of the position of virtual camera array shooting anaglyph and video camera shooting space-time function figure
It causes, i.e., the anaglyph shot by any virtual camera in virtual camera array from any position, corresponding one by imaging
The space-time function image that machine is shot from the position.
Based on any of the above-described embodiment, Fig. 3 is a kind of top view of light field display system of the embodiment of the present invention, such as Fig. 3
Shown, a kind of 3D rendering bearing calibration shown based on light field, light field display system includes liquid crystal display panel 101, lens array 102
With hologram functional screen 103.
Herein, lens array 102 is the lens matrix for arranging multiple lens on the direction 2D and being formed.Holographic function
It is the optical device made in the way of holographic that 103, which can be shielded, for light to be dissipated at a certain angle, the embodiment of the present invention
In, hologram functional screen 103 refers to all optical devices with scattering function.
In order to better understand and using a kind of 3D rendering bearing calibration shown based on light field proposed by the present invention, this hair
Bright carry out following example, and the present invention is not only limited to following example.
In Fig. 3, the center of lens array 102 is overlapped with the center of video camera array 104, the light of vertical direction
Line distribution can the light distribution of horizontal direction according to Fig.3, similarly obtain.Wherein, in video camera array 104
The position of video camera is both the position and the optimum distance position of human eye viewing of Image Acquisition.Assuming that lens array 102
Number is N × M, and the resolution ratio of every anaglyph is x × y, and the resolution ratio of coded image is X × Y, the number of video camera array 104
Mesh is consistent with the resolution sizes of anaglyph, is x × y, and the pixel of each covered coded image of lens is r × r, disparity map
Number be r × r, wherein X=r × N, Y=r × M.The distance between liquid crystal display panel 101 and lens array 102 are g, lens array
The distance between column 102 and hologram functional screen 103 are D, and the distance between video camera array 104 and lens array 102 are L.
Display model is treated by computer software virtually to be shot, and the anaglyph of model to be shown is obtained.Fig. 4 is
The schematic diagram of a kind of model to be shown of the embodiment of the present invention, as shown in figure 4, setting model to be detected to the grid of a × b
Figure.Model to be detected is D at a distance from zero plane, and virtual camera array plane and zero plane array distance are L, passes through shooting
Total r × the r of the anaglyph of acquisition, be all trrellis diagram of throwing the net in every anaglyph, by Corner Detection, obtains lattice of often throwing the net
Position coordinates (the x of angle point in figure0,y0)、(x0,y1)、…、(x1,y0)、(x1,y1)、…、(xa,yb), in every anaglyph all
There is a angular coordinate of (a+1) × (b+1).Herein, zero plane is the plane where lens array 102
From the foregoing, it will be observed that the spacing d=pL/rg of 104 horizontal direction of video camera array, the spacing d'=d of vertical direction, camera shooting
Distance of the machine apart from 102 place plane of lens array is L.The position of each video camera is sat in video camera array 104 as shown in Figure 3
Mark, above-mentioned position coordinates are consistent with the position coordinates of the virtual camera in computer software.It should be noted that computer is soft
What virtual camera was shot in part is model to be shown, and video camera shooting herein is that model to be shown passes through light field display system
In space imaging.
It is shot by video camera along guide rail, obtains r × r space-time function figures.Ideally, r × r herein
Space-time function figure is identical with r × r for being acquired by computer software anaglyphs, but due to the presence of various errors,
Anaglyph can not be identical with corresponding space-time function figure.Space-time function figure is equally obtained by way of Corner Detection
Coordinate (x' of the middle angle point in respective image0,y'0)、(x'0,y'1)、…、(x'1,y'0)、(x'1,y'1)、…、(x'a,y'b)
There is a angular coordinate of (a+1) × (b+1) in every space-time function figure.
Angular coordinate (x by taking wherein one group of anaglyph Img and space-time function figure Img ' as an example, in anaglyph Img0,
y0)、(x0,y1)、…、(x1,y0)、(x1,y1)、…、(xa,yb), with the angular coordinate (x' in space-time function image Img '0,y
'0)、(x'0,y'1)、…、(x'1,y'0)、(x'1,y'1)、…、(x'a,y'b) correspond.For known (a+1) × (b+1)
The corresponding angular coordinate of group carries out fitting of a polynomial：
In formula, the abscissa set X=(x of each angle point in anaglyph Img0,x1,x2,...,xa), each angle point
Ordinate set Y=(y0,y1,y2,...,yb)；The abscissa set X'=(x' of each angle point in space-time function figure Img '0,x
'1,x'2,...,x'a), the ordinate set Y'=(y' of each angle point0,y'1,y'2,...,y'b)；T is nature as big as possible
Number.
By the fitting of a polynomial in above formula, the cross of angle point in available anaglyph Img and space-time function figure Img '
Coordinate fitting coefficient sets K=(k0,k1,k2,...,kt), the ordinate of angle point in anaglyph Img and space-time function figure Img '
It is fitted system set M=(m0,m1,m2,...,mt).Above-mentioned polynomial relation is described as：
Fig. 5 is a kind of transition diagram of correction function of the embodiment of the present invention, as shown in Figure 5.Ideally, to make
It is consistent with anaglyph Img to obtain space disparity map, needs to seek to correct picture Img0, acquired after light field display system
The space-time function figure arrived is consistent with disparity map Img.As shown in Figure 5, picture Img is corrected0In each angle point abscissa set X0=
F (X), the ordinate set Y of each angle point0=g (Y), it can thus be concluded that correction picture Img0In each angle point position coordinates, when
When grid is intensive enough, the coordinate that the calculating of the position coordinates of angle point can also be become to pixel is calculated, in anaglyph Img
Each location of pixels coordinate by the transformation of correction function f (X) and g (Y) obtain correction image Img0Each pixel coordinate,
To obtain correction image Img0。
Similarly, the r × r correction images after calculation processing are obtained based on above-mentioned processing mode.With Img0For, it will
Anaglyph Img generates correction image Img by correction0, use Img0The synthesis that coded image is carried out instead of Img obtains correction and compiles
Code image.In this way, being corrected based on the 3D rendering that light field display system is shown.
In this example, anaglyph is corrected by anaglyph corresponding correction function, light field is counteracted and shows
Itself error of system improves the 3D rendering quality of light field display system, enhances user experience.
Based on any of the above-described embodiment of the method, Fig. 6 is a kind of 3D rendering school shown based on light field of the embodiment of the present invention
The structural schematic diagram of positive system, as shown in fig. 6, a kind of 3D rendering correction system shown based on light field, including：
Image acquisition unit 601 is corrected, it is right for the corresponding correction function of any anaglyph based on model to be shown
The anaglyph is corrected, and obtains the correction image of the anaglyph；Wherein, the corresponding correction function of the anaglyph is root
It is obtained according to anaglyph space-time function figure corresponding with the anaglyph；
Display unit 602 is encoded, for encoding the correction image of whole anaglyphs of model to be shown, is obtained
Correction coding image shows correction coded image by light field display system.
It should be noted that above-mentioned correction image acquisition unit 601 and the coding cooperation of display unit 602 are to execute above-mentioned reality
The 3D rendering bearing calibration that one of example is shown based on light field is applied, the concrete function of the system is referring to above-mentioned aobvious based on light field
The embodiment for the 3D rendering bearing calibration shown, details are not described herein again.
In the embodiment of the present invention, anaglyph is corrected by anaglyph corresponding correction function, counteracts light
Itself error of field display system, improves the 3D rendering quality of light field display system, enhances user experience.
Based on any of the above-described embodiment, a kind of 3D rendering correction system shown based on light field further includes：
Angular coordinate acquiring unit, the coordinate of each angle point in any anaglyph for obtaining model to be shown, with
And in the corresponding space-time function figure of the anaglyph each angle point coordinate；
Correction function acquiring unit, for by the corresponding space of the coordinate of angle point each in the anaglyph anaglyph
In disparity map the coordinate of each angle point be fitted, obtain the corresponding correction function of the anaglyph.
Based on any of the above-described embodiment, a kind of 3D rendering correction system shown based on light field, correction function acquiring unit,
It is specifically used for：
According to the following formula to every in the coordinate of each angle point in anaglyph space-time function figure corresponding with the anaglyph
The coordinate of one angle point is fitted：
In formula, the abscissa set X=(x of each angle point in the anaglyph0,x1,x2,…,xa), in the anaglyph
The ordinate set Y=(y of each angle point0,y1,y2,…,yb)；
The abscissa set X'=(x' of each angle point in the corresponding space-time function figure of the anaglyph0,x'1,x'2,…,
x'a), the ordinate set Y'=(y' of each angle point in the corresponding space-time function figure of the anaglyph0,y'1,y'2,…,y'b)；t
For natural number；
Thus it is as follows to obtain the corresponding correction function of the anaglyph：
In formula, f (X) is the abscissa set of each angle point in the correction image of the anaglyph, and g (Y) is the disparity map
The ordinate set of each angle point in the correction image of picture.
Based on any of the above-described embodiment, a kind of 3D rendering correction system shown based on light field further includes：
Anaglyph acquiring unit is shot for treating display model by virtual camera array, is obtained to aobvious
Whole anaglyphs of representation model；
Space-time function image acquisition unit, for being encoded whole anaglyphs, obtaining coded image and passing through light
Field display system is shown；Coded image is shot by the 3D rendering that light display system is shown by video camera, is obtained
Take space-time function image corresponding with each anaglyph.
Based on any of the above-described embodiment, a kind of 3D rendering correction system shown based on light field, light field display system includes
Liquid crystal display panel, lens array and hologram functional screen.
Fig. 7 is a kind of structural schematic diagram of 3D rendering calibration equipment shown based on light field of the embodiment of the present invention, such as Fig. 7
It is shown, include based on the 3D rendering calibration equipment that light field is shown：Processor (processor) 701, communication interface
(Communications Interface) 702, memory (memory) 703 and bus 704, wherein processor 701, communication
Interface 702, memory 703 complete mutual communication by bus 704.Processor 701 can call patrolling in memory 703
Instruction is collected, to execute following method, for example including：The corresponding correction function of any anaglyph based on model to be shown, it is right
The anaglyph is corrected, and obtains the correction image of the anaglyph；Wherein, the corresponding correction function of the anaglyph is root
It is obtained according to anaglyph space-time function figure corresponding with the anaglyph；By the school of whole anaglyphs of model to be shown
Positive image is encoded, and correction coding image is obtained, and correction coded image is shown by light field display system.
The embodiment of the present invention discloses a kind of computer program product, and computer program product includes being stored in non-transient calculating
Computer program on machine readable storage medium storing program for executing, computer program include program instruction, when program instruction is computer-executed,
Computer is able to carry out method provided by above-mentioned each method embodiment, for example including：Any parallax based on model to be shown
The corresponding correction function of image, is corrected the anaglyph, obtains the correction image of the anaglyph；Wherein, the parallax
The corresponding correction function of image is obtained according to anaglyph space-time function figure corresponding with the anaglyph；It will be to be shown
The correction image of whole anaglyphs of model is encoded, and correction coding image is obtained, and correction coded image is passed through light field
Display system is shown.
The present embodiment provides a kind of non-transient computer readable storage medium, non-transient computer readable storage medium storages
Computer instruction, computer instruction make computer execute method provided by above-mentioned each method embodiment, for example including：Based on to
The corresponding correction function of any anaglyph of display model, is corrected the anaglyph, obtains the school of the anaglyph
Positive image；Wherein, the corresponding correction function of the anaglyph is according to anaglyph space view corresponding with the anaglyph
Difference figure obtains；The correction image of whole anaglyphs of model to be shown is encoded, correction coding image, high-ranking officers are obtained
Positive coded image is shown by light field display system.
Those of ordinary skill in the art will appreciate that：Realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as communication equipment described above are only schematical, wherein unit as illustrated by the separation member
It may or may not be physically separated, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
The method of certain parts of example or embodiment.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the embodiment of the present invention, rather than right
It is limited；Although the embodiment of the present invention is described in detail referring to foregoing embodiments, the ordinary skill of this field
Personnel should understand that：It is still possible to modify the technical solutions described in the foregoing embodiments, or to part
Or all technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution
The range of each embodiment technical solution of the embodiment of the present invention.
Claims (10)
1. a kind of 3D rendering bearing calibration shown based on light field, which is characterized in that including：
The corresponding correction function of any anaglyph based on model to be shown, is corrected any anaglyph, obtains
Take the correction image of any anaglyph；Wherein, the corresponding correction function of any anaglyph is appointed according to described
One anaglyph space-time function figure corresponding with any anaglyph obtains；
The correction image of whole anaglyphs of the model to be shown is encoded, correction coding image is obtained, it will be described
Correction coding image is shown by light field display system.
2. the method according to claim 1, wherein any anaglyph based on model to be shown is corresponding
Correction function, any anaglyph is corrected, the correction image of any anaglyph is obtained, also wraps before
It includes：
Obtain the coordinate of each angle point and the corresponding sky of any anaglyph in any anaglyph of model to be shown
Between in disparity map each angle point coordinate；
It will be every in the space-time function figure corresponding with any anaglyph of the coordinate of each angle point in any anaglyph
The coordinate of one angle point is fitted, and obtains the corresponding correction function of any anaglyph.
3. according to the method described in claim 2, it is characterized in that, the seat by each angle point in any anaglyph
The coordinate of each angle point is fitted in mark space-time function figure corresponding with any anaglyph, acquisition any parallax
The corresponding correction function of image, specifically includes：
The coordinate of each angle point in any anaglyph space corresponding with any anaglyph is regarded according to the following formula
The coordinate of each angle point is fitted in poor figure：
In formula, the abscissa set X=(x of each angle point in any anaglyph0,x1,x2,...,xa), any view
The ordinate set Y=(y of each angle point in difference image0,y1,y2,...,yb)；
The abscissa set X'=(x' of each angle point in the corresponding space-time function figure of any anaglyph0,x'1,x
'2,...,x'a), the ordinate set Y'=(y' of each angle point in the corresponding space-time function figure of any anaglyph0,y
'1,y'2,...,y'b)；T is natural number；
Thus it is as follows to obtain the corresponding correction function of any anaglyph：
In formula, f (X) is the abscissa set of each angle point in the correction image of any anaglyph, and g (Y) is described appoints
The ordinate set of each angle point in the correction image of one anaglyph.
4. according to claim 1 to method described in any claim in 3, which is characterized in that described to be based on model to be shown
The corresponding correction function of any anaglyph, any anaglyph is corrected, any anaglyph is obtained
Correction image, further include before：
Display model is treated by virtual camera array to be shot, and whole anaglyphs of the model to be shown are obtained；
Whole anaglyphs are encoded, coded image is obtained and is shown by the light field display system；
Coded image is shot by the 3D rendering that the light display system is shown by video camera, obtain with it is each described
The corresponding space-time function image of anaglyph.
5. according to claim 1 to method described in any claim in 3, which is characterized in that the light field display system packet
Include liquid crystal display panel, lens array and hologram functional screen.
6. a kind of 3D rendering correction system shown based on light field, which is characterized in that including：
Image acquisition unit is corrected, for the corresponding correction function of any anaglyph based on model to be shown, to described
One anaglyph is corrected, and obtains the correction image of any anaglyph；Wherein, any anaglyph is corresponding
Correction function is obtained according to any anaglyph space-time function figure corresponding with any anaglyph；
Display unit is encoded, for encoding the correction image of whole anaglyphs of the model to be shown, obtains school
Positive coded image shows the correction coding image by light field display system.
7. system according to claim 6, which is characterized in that further include：
Angular coordinate acquiring unit, the coordinate of each angle point, Yi Jisuo in any anaglyph for obtaining model to be shown
State the coordinate of each angle point in the corresponding space-time function figure of any anaglyph；
Correction function acquiring unit, for by any anaglyph pair described in the coordinate of each angle point in any anaglyph
In the space-time function figure answered the coordinate of each angle point be fitted, obtain the corresponding correction function of any anaglyph.
8. system according to claim 6 or 7, which is characterized in that further include：
Anaglyph acquiring unit is shot for treating display model by virtual camera array, is obtained described to aobvious
Whole anaglyphs of representation model；
Space-time function image acquisition unit obtains coded image and passes through institute for encoding whole anaglyphs
Light field display system is stated to be shown；Coded image is carried out by the 3D rendering that the light display system is shown by video camera
Shooting obtains space-time function image corresponding with each anaglyph.
9. a kind of 3D rendering calibration equipment shown based on light field, which is characterized in that including processor, communication interface, memory
And bus, wherein processor, communication interface, memory complete mutual communication by bus, and processor can call storage
Logical order in device, to execute the 3D rendering bearing calibration as claimed in claim 1 to 5 shown based on light field.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
Processor realizes the 3D rendering bearing calibration as claimed in claim 1 to 5 shown based on light field when executing.
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