CN110290374A - A kind of implementation method of naked eye 3D - Google Patents
A kind of implementation method of naked eye 3D Download PDFInfo
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- CN110290374A CN110290374A CN201910576260.6A CN201910576260A CN110290374A CN 110290374 A CN110290374 A CN 110290374A CN 201910576260 A CN201910576260 A CN 201910576260A CN 110290374 A CN110290374 A CN 110290374A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/122—Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/363—Image reproducers using image projection screens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
Abstract
The present invention provides the implementation methods of naked eye 3D a kind of.This method comprises: obtaining 2D image, the 2D image is split as background role and prospect role；Layered shaping is carried out to the image data obtained after deconsolidation process, 3D projection in basis is carried out in the size of setting in the range of naked eye 3D camera angle covers to the image data after layered shaping；Details repairing treatment is carried out using OPEN CL 3D to the image data obtained after basic 3D projection；It is calculated using image of the Open CL multi-texturing mechanism to 16 channels that the image data after details repairing treatment carries out naked eye 3D image, obtains naked eye 3D image.The limitation that existing 3D process can be overcome using the method for the embodiment of the present invention produces effective naked eye 3D image.The strength that work station can be maximally utilised realizes that technical staff controls in work station and manage the feasibility of all things in the case where the additional renderer of no use and process.
Description
Technical field
The present invention relates to 3D image technology field more particularly to a kind of implementation methods of naked eye 3D.
Background technique
3D image is the stereopsis seen by parallax, using the binocular stereo vision principle of people, enables spectators from view
Three-dimensional space image is obtained on frequency medium, so that spectators be made to have feeling on the spot in person.
It is desirable to which the 3D display device or TV of glasses need two kinds of image channels of left eye and right eye, this 3D technology can
To be completed using simple 2D or 3D calculation software, the software of this 3D technology to circulate on the market is also very much.
But the core of naked eye 3D mode is to surmount eyes, and the image of different angle is showed according to the position of spectators, thus
The illusion phenomenon of image stereoscopic is generated, in order to realize this target of naked eye 3D, hardware facility must be provided simultaneously with more than 16 kinds
The image of angle is planted, also to produce 16 channels or more according to different angle in content.But this needs to form 16 void simultaneously
Quasi- video camera is made, and needs 30 times or more of operation and the performance of accurate 3D depth more than existing 3D making video
It just can be carried out production.
Currently, the implementation of the first naked eye 3D in the prior art are as follows: essence material+depth map 2D distorts scheme, should
Scheme distortion script image in left and right based on depth map.In this scenario, depth map is closer to white, the corresponding neck of original part
Domain: left eye: pixel moves right, right eye: pixel is moved to the left；Depth map is closer to black, the corresponding field of script, left eye:
Pixel is moved to the left, right eye: pixel moves right.The program is converted suitable for common 3D TV 3D, 16 channels of the program
(channel L8, the channel R8) makes naked eye 3D, and the angle of Toe In will extend to 20 degree or more.
The shortcomings that implementation of above-mentioned the first naked eye 3D in the prior art are as follows: lack three-dimensional sense, left and right can generate
Many places number twisted phenomena, needs a large amount of modification.Although light and handy 2D operation mode, the channel L8, R8 are being carried out
Channel totally 16 body operations and after similarly need to carry out the amendment of 8 times (each 8 times of L, R), therefore workload can become larger, production effect
Rate and cost performance be not high.
Summary of the invention
The embodiment provides the implementation methods of naked eye 3D a kind of, to overcome problem of the prior art.
To achieve the goals above, this invention takes following technical solutions.
A kind of implementation method of naked eye 3D, comprising:
2D image is obtained, the 2D image is split as background role and prospect role；
Layered shaping is carried out to the image data obtained after deconsolidation process, to the image data after layered shaping in naked eye 3D
3D projection in basis is carried out in the range of the covering of camera angle in the size of setting；
Details repairing treatment is carried out using OPEN CL 3D to the image data obtained after basic 3D projection；
Led to using Open CL multi-texturing mechanism to the image data after details repairing treatment carries out naked eye 3D image 16
The image in road calculates, and obtains naked eye 3D image.
Preferably, the volume presentation technique of 2.5D is applied in the basis 3D projection process.
Preferably, the image data obtained after to basic 3D projection carries out details repairing treatment using OPEN CL 3D
In the process, it is operated using the early period that CPU operation carries out including the transmitting operation of position, then the result based on CPU operation uses
OPEN CL operation rebuild the operation of 3D shape, in the operating process for rebuilding 3D shape, the graphical information on every one side
It is obtained with the RGB of image source.
Preferably, described naked to the image data progress after details repairing treatment using Open CL multi-texturing mechanism
The image calculation in 16 channels of eye 3D image, obtains naked eye 3D image, comprising:
Installation meets the camera of 3D content on naked eye 3D display screen, which includes for image data distribution rendering
8 channel of 8 channel of left eye and right eye；
The image data after details repairing treatment is carried out by CPU and GPU using Open CL multi-texturing mechanism parallel
Calculation realizes the image calculation in 8 channel of 8 channel of left eye and right eye described in 20,000,000 faces of naked eye 3D image, obtains naked eye 3D shadow
Picture.
As can be seen from the technical scheme provided by the above-mentioned embodiment of the present invention, using the method for the embodiment of the present invention can gram
The limitation for taking existing 3D process produces effective naked eye 3D image.The strength that work station can be maximally utilised is not having
In the case where useful additional renderer and process, realize that technical staff controls in work station and manage the feasible of all things
Property.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is a kind of process flow diagram of the implementation method of naked eye 3D image provided in an embodiment of the present invention；
Fig. 2 is that a kind of OPEN CL Parallax computingtechnology provided in an embodiment of the present invention is applied to
The OPEN CL source code schematic diagram of naked eye 3D content；
Fig. 3 is that a kind of left side provided in an embodiment of the present invention is 2D image, and right side is the depth image of 2D image；
Fig. 4 is a kind of implementation method of the naked eye 3D using the embodiment of the present invention provided in an embodiment of the present invention in Fig. 3
Two pictures carry out the naked eye 3D rendering of left eye and right eye that operation obtains；
Fig. 5 is 3D rendering made of a kind of 2D operation as existing 2D+DEPTH form provided in an embodiment of the present invention；
Fig. 6 is a kind of naked eye for meeting the embodiment of the present invention for being converted into image source images provided in an embodiment of the present invention
The B/W image of the implementation method of 3D；
Fig. 7 be using the embodiment of the present invention naked eye 3D implementation method by the 2D image making of Fig. 6 at naked eye 3D scheme
Picture；
Fig. 8 is a kind of exemplary diagram that personage is pressed to distance separation provided in an embodiment of the present invention；
Fig. 9 is a kind of signal that the image of Fig. 8 is formed to 3D rendering using common CP U operation provided in an embodiment of the present invention
Figure；
Figure 10 is a kind of implementation method of the naked eye 3D using the embodiment of the present invention provided in an embodiment of the present invention by Fig. 8's
The schematic diagram of image composition 3D rendering.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
In order to facilitate understanding of embodiments of the present invention, it is done by taking several specific embodiments as an example below in conjunction with attached drawing further
Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
The embodiment of the present invention efficiently makes naked eye 3D stereo content, proposes a kind of naked eye to improve 3D projection form
The implementation method of 3D image, the process flow of this method is as shown in Figure 1, include following processing step:
Step S10, a 2D image to be transformed for naked eye 3D image is obtained, above-mentioned 2D image is analyzed.
Step S20, the content in 2D image is split respectively according to respective purposes, such use includes background, BG
(background, background) role and FG (foreground, prospect) role etc..
BG/FG role and BG stage property after fractionation are the indispensable elements of later process process.Glasses-free 3D needs real-time implementation
The self-discipline degree of viewpoint, so need to separate just be able to achieve object between the vivid information blocked.For example, during playing computer, such as
Fruit is wanted to see the subsequent thing of display, and it is similar for can standing up or face be moved past the principle seen.
Step S30, after carrying out layered shaping to the image data obtained after deconsolidation process, then basic 3D projection is carried out.
After carrying out layered shaping to the image data obtained after above-mentioned deconsolidation process, in the range of naked eye 3D camera angle covering
3D projection in basis is carried out in the interior size as defined in technical staff.Skill is showed using the volume of 2.5D in basic 3D projection process
Method, this method quickly meticulously show accurate three-dimensional sense.
The visual picture shape that will be apparent from volume performance brings 2D image into, is modeled with 2.5D.Such as utilize ball
(Sphere), six facial canals (cube), Taurus (baked donut type) contour, or as the straight line of people's point and exterior point, and input value
Mode.Or by way of the straight line and value of point and exterior point in inputting (used in when such as production drawing), with the intuitive earth's surface of 2.5D
It is used after existing three-dimensional sense.
Step S40, details is strengthened using OPEN CL 3D technology to the image data obtained after basic 3D projection.
After the basis projection of image data, OPEN CL 3D is used to the image data obtained after basic 3D projection
Technique details carries out details repairing treatment to image data, defines the object space in image data.
OPEN CL Parallax computing technology application (NVidia: is also applied for
CudaProcessor technology), Open CL can link in AMD and Nvidia graphics processor with Nvidia Cuda
It is all available and also good to hardware compatibility.
To image data carry out details repairing treatment during key be to which kind of engine of the programmed usage of operation,
Which power function used.As output, we want for position transmitting (Position Pass) (the x, y, z value of each pixel)
The design drawing of 3D shape, it saves details in a light 2D image.But it is intended to show it with figure, face
Number is more, performance it is more careful, it is more acurrate, to be transitioned into the calculating process of figure, calculating process will become it is complicated and
It is heavy.
Since CPU is not only restricted to the opereating specifications such as 3D figure, physics, 2D special efficacy, can be handled by a program
Advantage, but once more than 300000 face youngsters, processing speed will start slack-off.To remedy this, the present invention uses
CPU operation carries out operation early period including the transmitting operation of position, and then, the result based on CPU operation is transported using OPEN CL
The operation for carrying out rebuilding 3D shape is calculated, in the operating process for rebuilding 3D shape, the graphical information image source on every one side
RGB (R=value x, G=value y, B=value z) obtain.The open unrestricted fast operating of OPEN CL operation
Function allows OPEN CL operation to handle up to 20,000,000 polygons simultaneously.
Step S50, the image data after details repairing treatment is carried out using OPEN CL computing technique by CPU and GPU
Parallel calculation realizes the image calculation in 20,000,000 face, 16 channel of naked eye 3D image, so that above-mentioned 2D image is converted to naked eye
3D image.
The present invention needs to install the camera for meeting high-quality 3D content on naked eye 3D display screen, which includes for scheming
8 channel of 8 channel of left eye and right eye rendered as data distribution.
The OPEN CL conversion process of image data can simply and quickly handle image, be mainly used for Preview regeneration,
Carrying out GPU calculation more than 2,000 ten thousand faces to 10bit/depth image is less applicable OPEN CL conversion process.GPU
(Graphics Processing Unit, graphics processor) can carry out display operation, CPU (Central
Processing Unit, central processing unit) image random process can be carried out, it is limited in scope to the rendering of image, render time
It is longer.Therefore, in image processing process of the invention, details is repaired using Open CL multiple (16/32 channel) rendering mechanism
It mends treated image data to be calculated parallel by CPU and GPU, improvement work station producing efficiency realizes above-mentioned camera
The image of 20000000 face, 16 channel naked eye 3D camera calculates, that is, sets the channel Lenticular16 of above-mentioned camera.
The embodiment of the present invention is developed and applies real-time CPU<->GPU complementary graph calculation Open CL technology, in intermediate work
Make station easily 16 body naked eye 3D contents of production.Test is completed, on standard naked eye 3D display screen hardware in order to cope in advance
Technological development and test is completed in the wilderness demand that can occur from now on.
A kind of OPEN CL Parallax computing technology provided in an embodiment of the present invention is applied to naked eye
The OPEN CL source code of 3D content is as shown in Figure 2.
The tool of the Detail Preserved Projection technology calculated using Open CL in the embodiment of the present invention "
Body treatment process includes: that step s50 using the concurrent operation on CPU and GPU of OPEN CL computing technique, is obtained in detail
Image data after calibration calculates 20,000,000 16 channel images of face that these 2D images are converted to nude 3D rendering.
Be equipped with the present invention claims Naan 3D display device and be suitable for the camera of high-quality 3D content, including 8 channel of left eye and
8 channel of right eye, for distributing image data.
The OPEN CL conversion process of image data is simple and quick, is mainly used for preview playback, and 10bit/depth is schemed
Picture, the GPU for demonstrating 2000 multi-panel youngsters do not apply OPEN CL conversion process significantly.Graphics processing unit (GPU) can show, in
Figure random process can be performed in central processor (CPU), and image rendering is limited in scope, and render time is long.
Therefore, in pattern treatment procedure of the invention, mechanism is rendered using Open CL multiple (16/32 channel), to thin
The image data of section modification processing, only carries out concurrent operation by CPU and GPU, improves the producing efficiency of work station.
The embodiment of the present invention is developed and applies real-time CPU<->GPU complementary graph operation Open CL technology, in intermediate work
16 naked eye 3D contents can easily be produced by making station.Now, the test of standard naked eye 3D display hardware has been completed in we, and complete
At technological development and test, to cope with the following wilderness demand that may occur in advance.
A kind of OPEN CL Parallax ComputingArchitecture provided in the embodiment of the present invention, should will be naked
The OPEN CL source code of body 3D content is identical with Fig. 2.
The 10bit Color Depth Image Processing's using Open CL in the embodiment of the present invention is specific
Treatment process includes: that based on Z Position, following Vertex Clouding is carried out on 20,000,000 face youngsters with X, Y
(rgb value and colouring information that input each Pixel) and collocation.
It is described above.R, G, B are recorded respectively with the function of 16bit/16bit/16bit, by programming.It uses later
16bit- > 10bit is reduced.
The method of aforementioned present invention can be applied to following several aspects:
Material analysis, background separation, the basis projection, careful projection (OpenCL/Cuda), GF3D of movie database (2D)
Render (naked eye 3D rendering) delivery；
Disparity Map (extracting from existing L/R), basis projection are extracted in the material analysis of movie database (3D)
(apply Disparity and shorten Production Time), careful projection (Open CL/Cuda), GF3D rendering delivery；
Advertising shooting, Visual Effect (CG:Position Pass extraction), synthesis (when synthesis and background separation),
Basis projection (apply Position Pass and shorten Production Time), careful projection (OpenCL/Cuda), GF3D rendering delivery；
Film (wait show) shooting, Visual Effect (CG:Position Pass extraction), synthesis (when synthesis and are carried on the back
Scape separation), basis projection (apply Position Pass shorten Production Time), careful projection (Open CL/Cuda), GF3D wash with watercolours
Dye delivery；
Cartoon waits showing) pre-production (not including), simple camera lens, animation, 16Cam is set in Scene, and set
Set 16 bodies rendering synthesis, 16 channels；
The camera lens animation of complexity presses (1), each channel of layer rendering (Position/Z detph pass output), basis
Projection (apply Position Pass and Z Depth and shorten Production Time), careful projection (Open CL/Cuda), GF3D rendering
Delivery.
Embodiment two
In Fig. 3, left side is 2D image, and right side is the depth image (depth map) of 2D image, and the distance of object is B/W.
In front, the expression of black is later for the expression of white.Using the embodiment of the present invention naked eye 3D implementation method in Fig. 3
Two pictures carry out operation, obtain the naked eye 3D rendering of left eye and right eye as shown in Figure 4.Fig. 4 is examined it finds that station
The position of people in the open country and the position of background are slightly different.It is subject to left eye, the position of outrunner can be confirmed slightly
It keeps right, background is remoter, more turns left little by little mobile.And the image of right eye then changes.If by both images respectively from
Left eye and right eye viewing, are shown as three-dimensional 3D because of the illusion of this mobile time difference.
Fig. 5 is the 3D rendering as made of the 2D operation of existing 2D+DEPTH form, which has limitation, L, R.
Image is warped into the right and left.
Fig. 6 is the B/W image of the implementation method for the naked eye 3D for meeting the embodiment of the present invention for being converted into image source images.
Fig. 7 be using the embodiment of the present invention naked eye 3D implementation method by the 2D image making of Fig. 6 at naked eye 3D rendering, from Fig. 7
As can be seen that the naked eye 3D rendering of production of the embodiment of the present invention does not have limitation, only seen naturally according to the time of camera
Things.
Fig. 8 is a kind of exemplary diagram that personage is pressed to distance separation provided in an embodiment of the present invention, and Fig. 9 is to utilize common CP U
Operation is by the schematic diagram of the image composition 3D rendering of Fig. 8, and since figure number is limited, details expression can only be local defect
Example.Figure 10 is the schematic diagram that the image of Fig. 8 is formed to 3D rendering using the implementation method of the naked eye 3D of the embodiment of the present invention, from
Figure 10 can be seen that graphics frame (PolygonView) 3D material object and itself not limited by volume details.
In conclusion the limitation of existing 3D process can be overcome using the method for the embodiment of the present invention, produce effective naked
Eye 3D image.The strength that work station can be maximally utilised is realized in the case where the additional renderer of no use and process
Technical staff controls in work station and manages the feasibility of all things.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
As seen through the above description of the embodiments, those skilled in the art can be understood that the present invention can
It realizes by means of software and necessary general hardware platform.Based on this understanding, technical solution of the present invention essence
On in other words the part that contributes to existing technology can be embodied in the form of software products, the computer software product
It can store in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes the certain of each embodiment or embodiment of the invention
Method described in part.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit of separate part description may or may not be physically separated, component shown as a unit can be or
Person may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can root
According to actual need that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill
Personnel can understand and implement without creative efforts.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (4)
1. a kind of implementation method of naked eye 3D characterized by comprising
2D image is obtained, the 2D image is split as background role and prospect role；
Layered shaping is carried out to the image data obtained after deconsolidation process, to the image data after layered shaping in naked eye 3D camera
3D projection in basis is carried out in the range of the covering of angle in the size of setting；
Details repairing treatment is carried out using OPEN CL 3D to the image data obtained after basic 3D projection；
16 channels of naked eye 3D image are carried out to the image data after details repairing treatment using Open CL multi-texturing mechanism
Image calculation, obtains naked eye 3D image.
2. the method according to claim 1, wherein applying the volume of 2.5D in the basis 3D projection process
Presentation technique.
3. the method according to claim 1, wherein the image data obtained after to basic 3D projection uses
During OPEN CL 3D carries out details repairing treatment, the early period including the transmitting operation of position is carried out using CPU operation
Operation, then the result based on CPU operation rebuild using OPEN CL operation the operation of 3D shape, are rebuilding 3D shape
Operating process in, the RGB of the graphical information image source on every one side is obtained.
4. according to claim 1 or method described in 2 or 3, which is characterized in that described utilizes Open CL multi-texturing
Mechanism calculates the image in 16 channels that the image data after details repairing treatment carries out naked eye 3D image, obtains naked eye 3D shadow
Picture, comprising:
Installation meets the camera of 3D content on naked eye 3D display screen, which includes the left eye for image data distribution rendering
8 channel of 8 channels and right eye；
The image data after details repairing treatment is drilled parallel by CPU and GPU using Open CL multi-texturing mechanism
It calculates, realizes the image calculation in 8 channel of 8 channel of left eye and right eye described in 20,000,000 faces of naked eye 3D image, obtain naked eye 3D image.
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| CN112969062B (en) * | 2021-02-05 | 2021-12-07 | 吉林大学 | Double-screen linkage display method for two-dimensional view of three-dimensional model and naked eye three-dimensional image |
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