CN108407290A - 3D printing color rendering method, the apparatus and system of voxel focus type arranged side by side - Google Patents
3D printing color rendering method, the apparatus and system of voxel focus type arranged side by side Download PDFInfo
- Publication number
- CN108407290A CN108407290A CN201810237677.5A CN201810237677A CN108407290A CN 108407290 A CN108407290 A CN 108407290A CN 201810237677 A CN201810237677 A CN 201810237677A CN 108407290 A CN108407290 A CN 108407290A
- Authority
- CN
- China
- Prior art keywords
- voxel
- color
- primary colours
- printing
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/0007—Manufacturing coloured articles not otherwise provided for, e.g. by colour change
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention provides 3D printing color rendering method, the apparatus and systems of a kind of voxel focus type arranged side by side；This method includes：Voxelization processing is carried out to 3D models to be printed, obtains the location information and the first colouring information of model voxel；According to the color characteristics of scanning device, color space conversion is carried out to the first colouring information, obtains the second colouring information independently of equipment；According to the mapping relations of the printing number of primary colors and the second colouring information of 3D printing equipment, CMY three primary colours color separation process is carried out to model voxel；The color rendering method assembled side by side using voxel handles CMY three primary colours color separation versions, obtains eight primary colours type-script plain color plates of model voxel；According to the colour table, 3D models are successively printed using opaque material；Which uses the colour generation mode that voxel is assembled side by side, improves color-reproducing capability, makes intermediate color and big gamut range true color obtain preferably presenting, is conducive to accurate color management.
Description
Technical field
The present invention relates to 3D printing technique fields, are presented more particularly, to a kind of 3D printing color of voxel focus type arranged side by side
Method, apparatus and system.
Background technology
3D printing technique generates 3D objects by way of successively increasing material manufacturing, is widely used in industry, art, dress
The fields such as decorations, life.The technology obtains the 3D model datas of printing objects by the methods of Computer Design, scanning first, and
Position and the colouring information of the 3D models are obtained by computer aided design, then successively prints, each layer heap is folded, until entire
Solid body model forming, to complete to print.
In existing 3D printing color rendering method, some carries out melting mixing to the printing colorant that different proportion mixes,
Then it squeezes out to print surface；Some requires to be pre-mixed by colorant is printed according to color, passes through a line style extruder head
Consumptive material is produced, and is successively printed using single nozzle；Also be side elevation decoration method, need to print respectively dyeing shell and
Auxiliaring shell.These methods need, according to different target color, constantly to carry out aim colour premixing in print procedure, and
Previous secondary colour may remain in premixer, and then influence the printing of next color effects or color position
Precision is unable to reach the level of smaller body element, after printing, needs to dissolve or remove shell, last handling process is complicated.These
3D printing method is mostly that ink directly mixes colour generation, and that there are color-reproducing capabilities is poor, big gamut range true color can not be presented
And the problems such as gradient color, cause the accuracy of color rendition relatively low.Also, due to the limitation of colour generation mode, existing 3D printing
Color rendering method does not meet ICC (International Color Consortium, international color consortium) digital color pipe
Specification is managed, effective precise color management can not be carried out.
Invention content
In view of this, the purpose of the present invention is to provide a kind of 3D printing color rendering method of voxel focus type arranged side by side,
Apparatus and system makes intermediate color and big gamut range true color preferably be presented, is conducive to improve color-reproducing capability
Accurate color management.
In a first aspect, an embodiment of the present invention provides a kind of 3D printing color rendering method of voxel focus type arranged side by side, it should
Method includes：Voxelization processing is carried out to 3D models to be printed, obtains the location information and the first colouring information of model voxel；
According to the color characteristics of scanning device, color space conversion is carried out to the first colouring information, obtains the second face independently of equipment
Color information；According to the mapping relations of the printing number of primary colors and the second colouring information of 3D printing equipment, CMY is carried out to model voxel
Three primary colours color separation process obtains the CMY three primary colours color separation versions of model voxel；The color rendering method pair assembled side by side using voxel
CMY three primary colours color separation versions are handled, and eight primary colours type-script plain color plates of model voxel are obtained；Eight primary colours type-script plain color plate packets
Include the location information and colouring information of eight primary colours printing voxel；According to eight primary colours type-script plain color plates, using opaque material pair
3D models are successively printed.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein on
The mapping relations for stating printing number of primary colors and second colouring information, are obtained by following manner：3D printing equipment is carried out
Calibration prints colour code；The colour code printed is measured, the mapping relations of printing number of primary colors and the second colouring information are obtained.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiments of first aspect, wherein on
It states and CMY three primary colours color separation versions is handled using the color rendering method that voxel is assembled side by side, obtain eight bases of model voxel
The step of color type-script plain color plate, including：It is in color method using the RIP parsings of printing voxel focus type, to CMY three primary colours color separations
Version carries out rasterizing processing, obtains the color separation version of CMY three primary colours color separation data；Color separation to the CMY three primary colours color separation data
Version carries out lamination process, obtains secondary colours R, G, B, the voxel location information of tertiary colo(u)r(s) K and white W；By secondary colours R, G, B, three
Secondary color K and white W replace with corresponding printing primary colours, obtain eight primary colours type-script plain color plates of model voxel.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiments of first aspect, wherein should
Method further includes：The position attribution of judgment models voxel；When position attribution is surface profile voxel, beating for model voxel is determined
Print material is primary colours material；When position attribution is voxel of object, determine that the printed material of model voxel is internal packing material.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiments of first aspect, wherein on
3D models to be printed are stated, are obtained by following manner：The topographic data and color data for acquiring 3D objects, with the file of setting
Format stores corresponding tri patch color and vertex position information；Height is carried out to tri patch color and vertex position information
The slice of dimension and the rasterizing processing of planar dimensions, generate the regularly arranged voxel of lattice；The height of slice and lattice height
It is identical；In the plane of each slice, rasterizing processing is carried out to tri patch color and vertex position information；According to highly cutting
The intersection of piece and tri patch determines the internal vertex position of model surface voxel using the method for curve difference；Using space
The method of difference obtains the colouring information of each voxel；The centre bit confidence of voxel is obtained according to the vertex position information of voxel
Breath；The center location information of voxel and colouring information are saved as into 3D models.
Second aspect, an embodiment of the present invention provides a kind of 3D printing colors of voxel focus type arranged side by side, and device is presented, should
Device includes：Voxelization processing module obtains the position of model voxel for carrying out voxelization processing to 3D models to be printed
Information and the first colouring information；Conversion module carries out color for the color characteristics according to scanning device to the first colouring information
Space is converted, and the second colouring information independently of equipment is obtained；Three primary colours color separation module, for the printing according to 3D printing equipment
The mapping relations of number of primary colors and the second colouring information carry out CMY three primary colours color separation process to model voxel, obtain model voxel
CMY three primary colours color separation versions；Eight primary colours color separation modules, the color rendering method for being assembled side by side using voxel is to tri- bases of CMY
Color color separation version is handled, and eight primary colours type-script plain color plates of model voxel are obtained；Eight primary colours type-script plain color plates include eight bases
Color prints the location information and colouring information of voxel；Print module, for according to eight primary colours type-script plain color plates, use to be opaque
Material successively prints 3D models.
In conjunction with second aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein on
The mapping relations for stating printing number of primary colors and second colouring information, are obtained by following manner：3D printing equipment is carried out
Calibration prints colour code；The colour code printed is measured, the mapping relations of printing number of primary colors and the second colouring information are obtained.
In conjunction with second aspect, an embodiment of the present invention provides second of possible embodiments of second aspect, wherein on
Eight primary colours color separation modules are stated, are additionally operable to：It is in color method using the RIP parsings of printing voxel focus type, to CMY three primary colours color separation versions
Rasterizing processing is carried out, the color separation version of CMY three primary colours color separation data is obtained；The color separation version of CMY three primary colours color separation data is carried out
Lamination process obtains secondary colours R, G, B, the voxel location information of tertiary colo(u)r(s) K and white W；By secondary colours R, G, B, tertiary colo(u)r(s) K and
White W replaces with corresponding printing primary colours, obtains eight primary colours type-script plain color plates of model voxel.
In conjunction with second aspect, an embodiment of the present invention provides the third possible embodiments of second aspect, wherein should
Device further includes voxel properties judgment module, is used for：The position attribution of judgment models voxel；When position attribution is surface profile body
When plain, determine that the printed material of model voxel is primary colours material；When position attribution is voxel of object, beating for model voxel is determined
Print material is internal packing material.
Second aspect, an embodiment of the present invention provides a kind of 3D printing colors, and system is presented, which includes 3D printer
And controller；Above-mentioned apparatus is set in the controller.
The embodiment of the present invention brings following advantageous effect：
An embodiment of the present invention provides 3D printing color rendering method, the apparatus and system of a kind of voxel focus type arranged side by side,
After carrying out voxelization processing to 3D models to be printed, the location information and the first colouring information of model voxel are obtained；According to sweeping
The color characteristics for retouching equipment carry out color space conversion, to obtain the second face independently of equipment to first colouring information
Color information；According to the mapping relations of the printing number of primary colors and the second colouring information of 3D printing equipment, to above-mentioned model voxel into
Row CMY three primary colours color separation process, to obtain the CMY three primary colours color separation versions of model voxel；The face for using voxel to assemble side by side again
Color rendering method handles CMY three primary colours color separation versions, obtains eight primary colours type-script plain color plates of model voxel；Last root again
According to the eight primary colours type-script plain color plate, 3D models are successively printed using opaque material；Which uses voxel simultaneously
The colour generation mode for arranging aggregation, improves the color-reproducing capability of 3D printing technique, intermediate color and big gamut range true color is made to obtain
To preferably presenting, be conducive to accurate color management.
Other features and advantages of the present invention will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implement the present invention above-mentioned technology it can be learnt that.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, better embodiment cited below particularly, and match
Appended attached drawing is closed, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of flow of the 3D printing color rendering method of voxel focus type arranged side by side provided in an embodiment of the present invention
Figure；
Fig. 2 is the flow of the 3D printing color rendering method of another voxel provided in an embodiment of the present invention focus type arranged side by side
Figure；
Fig. 3 is the exemplary plot of the 3D printing color rendering method of voxel provided in an embodiment of the present invention focus type arranged side by side；
Fig. 4 is that a kind of structure of the 3D printing color presentation device of voxel focus type arranged side by side provided in an embodiment of the present invention is shown
It is intended to；
Fig. 5 is that a kind of structure of the 3D printing color presentation system of voxel focus type arranged side by side provided in an embodiment of the present invention is shown
It is intended to.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Currently, 3D (three dimensional are three-dimensional) printing technique is mostly that ink directly mixes colour generation, there are colors
Reproduction is poor, the problems such as big gamut range true color and gradient color can not be presented, and causes the accuracy of color rendition relatively low.Together
When, because of the limitation of its colour generation mode and principle, the color rendering method of existing 3D printing does not meet open ICC number face
Color management regulation can not carry out effective precise color management.Based on this, a kind of voxel provided in an embodiment of the present invention gathers side by side
3D printing color rendering method, the apparatus and system of diversity can be applied to colored 3D printing field and other colour print skills
Art.
For ease of understanding the present embodiment, first to a kind of voxel focus type arranged side by side disclosed in the embodiment of the present invention
3D printing color rendering method describe in detail.
A kind of flow chart of the 3D printing color rendering method of voxel focus type arranged side by side shown in Figure 1, this method packet
Include following steps：
Step S100 carries out voxelization processing to 3D models to be printed, obtains the location information and first of model voxel
Colouring information；
Specifically, above-mentioned 3D models can be the model being scanned to real-world object, or pass through software
Design obtained model.The data of the model generally use OBJ (a kind of 3D model files format), STL
File formats such as (stereolithography, stereolithography arts) are stored.Voxelization is carried out to 3D model datas
After processing, regular lattice cube model voxel location and colouring information can be obtained
Step S102 carries out color space conversion to the first colouring information, obtains solely according to the color characteristics of scanning device
Stand on the second colouring information of equipment；
In fact, the color data in the formats 3D model datas such as OBJ, STL, the color for mostly relying on 3D scanning devices is empty
Between in R, G, B data.The data for relying on device color spaces are only transformed into the color space independently of equipment, it just can be with
The ICC digital color management processes for carrying out open loop type, to realize the accurate reproduction to three-dimension object colouring information.It is above-mentioned independently of
The color space of equipment is CIE (Commission Internationale de L'Eclairage, International Commission on Illumination)
L*a*b*Space.
Step S104, according to the mapping relations of the printing number of primary colors and the second colouring information of 3D printing equipment, to model
Voxel carries out CMY three primary colours color separation process, obtains the CMY three primary colours color separation versions of model voxel；Wherein, CMY is three kinds of off-set oils
The initial of black title, C are cyan, and M is magenta, and Y is yellow.
Step S106, the color rendering method assembled side by side using voxel handle CMY three primary colours color separation versions, obtain
Eight primary colours type-script plain color plates of model voxel；Eight primary colours type-script plain color plates include eight primary colours printing voxel location information and
Colouring information；
Wherein, eight primary colours are in addition to CMY further includes five kinds of RGBKW printing ink；Wherein R is red, and G is green, and B is indigo plant
Color, K are black, and W is white.Since the material used is opaque material, two kinds of materials can not overlap colour generation, therefore 3D printing
In be the mode of appearance of color assembled side by side.
Step S108 successively prints 3D models using opaque material according to eight primary colours type-script plain color plates.
An embodiment of the present invention provides a kind of 3D printing color rendering methods of voxel focus type arranged side by side, to 3D to be printed
After model carries out voxelization processing, the location information and the first colouring information of model voxel are obtained；According to the color of scanning device
Characteristic carries out color space conversion, to obtain the second colouring information independently of equipment to first colouring information；According to 3D
The mapping relations of the printing number of primary colors and the second colouring information of printing device carry out CMY three primary colours point to above-mentioned model voxel
Color processing, to obtain the CMY three primary colours color separation versions of model voxel；The color rendering method pair for using voxel to assemble side by side again
CMY three primary colours color separation versions are handled, and eight primary colours type-script plain color plates of model voxel are obtained；Finally beaten further according to eight primary colours
Voxel colour table is printed, 3D models are successively printed using opaque material；Which uses the colour generation that voxel is assembled side by side
Mode improves the color-reproducing capability of 3D printing technique, make intermediate color and big gamut range true color obtained preferably be in
It is existing, be conducive to accurate color management.
The flow chart of the 3D printing color rendering method of another voxel focus type arranged side by side shown in Figure 2, this method
It realizes, includes the following steps on the basis of method shown in Fig. 1：
Step S200 acquires the 3D model datas of real-world object, and 3D model datas is carried out voxelization processing, obtains mould
Each three dimensional local information of voxel and the colouring information of surface voxel in type；
Above-mentioned steps S200 is realized especially by following manner：
(1) topographic data and color data for acquiring 3D objects, with the corresponding tri patch of the stored in file format of setting
Color and vertex position information；
(2) tri patch color and vertex position information are carried out at the slice of elevation dimension and the rasterizing of planar dimensions
Reason generates the regularly arranged voxel of lattice；The height of slice is identical as lattice height；
Specifically, the tri patch color to above-mentioned 3D objects and vertex position information carry out the slice peace of elevation dimension
The rasterizing of face dimension is handled, and the pattern and colouring information of 3D objects are described with the regularly arranged voxel of lattice；In x/y plane and
In the three dimensions of height h descriptions, according to the cubical size of lattice, the height and lattice height size phase of every layer of slice are determined
Deng.
(3) in the plane of each slice, rasterizing processing is carried out to tri patch color and vertex position information；Exist
In x/y plane in each height, the rasterizing of position and its corresponding color information is carried out；
(4) model surface voxel is determined using the method for curve difference according to height slice and the intersection of tri patch
Internal vertex position；
Specifically, using the intersection of height slice and tri patch, and in the method for curve interpolation, model surface body is determined
The outer surface height vertex position of element；It is handled by the rasterizing of x/y plane, determines the internal vertex position of model surface voxel.
(5) method of space interpolation is used to obtain the colouring information of each voxel；
(6) center location information of voxel is obtained according to the vertex position information of voxel；Utilize eight of model voxel
Vertex position information can obtain the center location information of the voxel；
(7) center location information of voxel and colouring information are saved as into 3D models.
Step S202 carries out face to the surface voxel colouring information stored in data format according to the characteristic of scanning device
Color space transformation converts the colouring information of model voxel into the color space independently of equipment, obtains the second colouring information；
Second colouring information is the corresponding CIE color values of colouring information of model voxel；
Step S204, the quantity that printing primary colours are calibrated, determined to 3D printer and the color data independently of equipment
Between mapping relations CMY three primary colours color separations are carried out to model voxel, are obtained according to the mapping relations and the second colouring informations
CMY three primary colours color separation versions；
Above-mentioned steps S204 can specifically be accomplished in the following manner：
(1) 3D printing equipment is calibrated, prints colour code；
First, it is carried out according to the flow of ICC digital color management, carries out 3D printing equipment Alignment；After row calibration, using base
Color is that reference colour target material is printed.
(2) colour code printed is measured, the mapping relations of printing number of primary colors and the second colouring information are obtained.
The CIE color values for measuring the colour code printed, establish the primary colours of printed material and reflecting for CIEL*a*b* color spaces
Penetrate relationship.Model voxel colouring information is converted to CIEL*a*b* color spaces, model voxel color CIEL*a*b* is established
Mapping relations between printing primary colours C, M, Y three primary colours, obtain C, M, Y three primary colours model voxel color separation version.The mapping relations
Can be according to color accuracy demand, using linear relation model, polynomial map relational model, LUT, (Look-Up-Table is aobvious
ShowLook-up table) three-dimensional lookup table model, neural network mapping model etc..
Step S206, using RIP (Raster Processing, grating processing) parsing colour generation of printing voxel focus type
Method carries out rasterizing processing to CMY three primary colours color separation versions, obtains the color separation version of CMY three primary colours color separation data；
Specifically, in monochrome separation version, the color of model voxel is presented with the cell matrix for printing voxel, the list
Variable matrix is formed by multiple printing tissue points of coherent condition.Shape according to printing voxel accumulation point is different, obtains different
Grid threshold matrix is made comparisons with model voxel color with the value of threshold matrix, and the grid for being more than or equal to threshold matrix value is spray
Ink-condition, it is space state to be less than.To avoid the generation of " Moire fringe " in printing, CMY three primary colours model voxel color separation versions
In, the threshold matrix of each monochrome separation version is using the equal different angle in interval.
In the embodiment of the present invention, the size that threshold matrix can be arranged is 100 printing voxels, prints voxel accumulation point
Shape be cube round or rectangular, that printing voxel size is 16 microns, log resolution 1700dpi.Referring to Fig. 3 institutes
Exemplary plot is presented in the 3D printing color of the voxel focus type arranged side by side shown, after carrying out CMY three primary colours color separations to the model, obtains CMY
Color separation version.
Step S208 carries out lamination process to the color separation version of CMY three primary colours color separation data, obtains secondary colours RGB, tertiary colo(u)r(s)
The voxel location information of K and white W；
After CMY color separations version is carried out RIP parsings respectively, the voxel location after each color separation version rasterizing is obtained, but different
The voxel of color separation version may correspond to the same position in grid matrix.Therefore, different base colors voxel is will produce in same grid
The color of matrix position overlaps phenomenon.
As shown in figure 3, after the CMY color separation versions of the model are carried out RIP parsings, the type-script of each CMY three primary colours is obtained
The position of element and quantity, CMY color separation versions are overlapped, three kinds of primary colours of YRK are obtained, and corresponding printing voxel is determined
Position and quantity.
Step S210, by secondary colours RGB, tertiary colo(u)r(s) K and white W replace with corresponding printing primary colours, obtain model voxel
Eight primary colours type-script plain color plates；
Specifically, since the 3D printing material used is opaque material, tissue points can not overlap colour generation, therefore will overlapping
Obtained secondary colours RGB tertiary colo(u)r(s)s K and white W is replaced using the printing primary colours of same color, their location information is
To print the location information of primary colours RGBKW.
Step S212 carries out the surface voxel of object 3D models the successively multi-color printing of CMYRGBKW.
Further, the above method further includes：
(1) position attribution of judgment models voxel；
(2) when position attribution is surface profile voxel, determine that the printed material of model voxel is primary colours material；Work as position
When attribute is voxel of object, determine that the printed material of model voxel is internal packing material.
Model voxel is divided into surface profile and voxel of object by above-mentioned steps, and difference is printed in different positions to determine
The material of type.The material of printing voxel is divided into colour generation material and packing material, then the voxel in surface profile position and surface
In internal certain depth bounds, printed using colour generation material, the color on surface is presented；It is deeper interior in model surface
The internal packing material of portion's voxel printing, to enhance the physical property of printer model, and saves cost.
It is the base using multicolor nozzle according to printing tissue points to printing the successively printing of voxel in practical operation
Primary colours material and internal packing material are successively printed to corresponding position, and are printed while printing at every layer by color information
The solidification of voxel；When printing every layer, 3D models voxel of object is carried out at the same time the printing of internal packing material using independent nozzle.
The material for printing voxel is photo-curing material or temperature-curable material；While voxel prints material is carried out using light source or fan
Material successively cures.
A kind of 3D printing color rendering method of voxel focus type arranged side by side provided in an embodiment of the present invention passes through to tri- bases of CMY
Color carries out color management, color separation, voxel focus type RIP parsing, realize the color managements of eight kinds of primary colours of CMYRGBKW, color separation,
Voxel focus type colour generation arranged side by side, it is simple and practicable, reduce the complexity of polychrome color separation；Wherein, the color that voxel is assembled side by side is in
Existing method, overcomes the opaque disadvantage of the 3D printing material used, breach opaque material can not with spot function into
The limitation of row 3D printing color.This can directly print in color method and realize big colour gamut, the color of multiple types, have to the presentation of gradual change
It is advantageous, and used open loop type ICC color management, can more accurate reproducing color therewith, be conducive to 3D printing color transfer and friendship
Stream.
The structural schematic diagram of device, the dress is presented in a kind of 3D printing color of voxel focus type arranged side by side shown in Figure 4
Set including：Voxelization processing module 400 obtains the position of model voxel for carrying out voxelization processing to 3D models to be printed
Confidence ceases and the first colouring information；Conversion module 402, for according to the color characteristics of scanning device, to the first colouring information into
Row color space conversion obtains the second colouring information independently of equipment；Three primary colours color separation module 404, for according to 3D printing
The mapping relations of the printing number of primary colors and the second colouring information of equipment carry out CMY three primary colours color separation process to model voxel, obtain
To the CMY three primary colours color separation versions of model voxel；Eight primary colours color separation modules 406, the color for being assembled side by side using voxel are presented
Method handles CMY three primary colours color separation versions, obtains eight primary colours type-script plain color plates of model voxel；Eight primary colours print voxel
Colour table includes the location information and colouring information of eight primary colours printing voxel；Print module 408, for printing voxel according to eight primary colours
Colour table successively prints 3D models using opaque material.
Specifically, the mapping relations of above-mentioned printing number of primary colors and second colouring information, are obtained by following manner：
(1) 3D printing equipment is calibrated, prints colour code；
(2) colour code printed is measured, the mapping relations of printing number of primary colors and the second colouring information are obtained.
Further, above-mentioned eight primary colours color separation module, is additionally operable to：
(1) it is in color method using the RIP parsings of printing voxel focus type, CMY three primary colours color separation versions is carried out at rasterizing
Reason, obtains the color separation version of CMY three primary colours color separation data；
(2) lamination process is carried out to the color separation version of CMY three primary colours color separation data, obtains secondary colours R, G, B, tertiary colo(u)r(s) K and
The voxel location information of white W；
(3) secondary colours R, G, B, tertiary colo(u)r(s) K and white W are replaced with into corresponding printing primary colours, obtains the eight of model voxel
Primary colours type-script plain color plate.
Further, above-mentioned apparatus further includes voxel properties judgment module, is used for the position attribution of judgment models voxel；When
When position attribution is surface profile voxel, determine that the printed material of model voxel is primary colours material；When position attribution is inner bulk
When plain, determine that the printed material of model voxel is internal packing material.
Device is presented in a kind of 3D printing color of voxel focus type arranged side by side provided in an embodiment of the present invention, with above-described embodiment
The 3D printing color rendering method technical characteristic having the same of the voxel focus type arranged side by side of offer, so can also solve identical
Technical problem reaches identical technique effect.
The structural schematic diagram of system is presented in a kind of 3D printing color of voxel focus type arranged side by side shown in Figure 5, this is
System includes 3D printer 40 and controller 41；Device shown in Fig. 4 is set in controller.
System is presented in a kind of 3D printing color provided in an embodiment of the present invention, the 3D printing color provided with above-described embodiment
Rendering method and device technical characteristic having the same reach identical technology effect so can also solve identical technical problem
Fruit.
The computer program product of 3D printing color rendering method, apparatus and system that the embodiment of the present invention is provided, packet
The computer readable storage medium for storing program code is included, the instruction that said program code includes can be used for executing previous methods
Method described in embodiment, specific implementation can be found in embodiment of the method, and details are not described herein.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of 3D printing color rendering method of voxel focus type arranged side by side, which is characterized in that including：
Voxelization processing is carried out to 3D models to be printed, obtains the location information and the first colouring information of model voxel；
According to the color characteristics of scanning device, color space conversion is carried out to first colouring information, is obtained independently of equipment
The second colouring information；
According to the mapping relations of the printing number of primary colors of 3D printing equipment and second colouring information, to the model voxel into
Row CMY three primary colours color separation process obtains the CMY three primary colours color separation versions of the model voxel；
The color rendering method assembled side by side using voxel handles the CMY three primary colours color separation version, obtains the model
Eight primary colours type-script plain color plates of voxel；The eight primary colours type-script plain color plate include eight primary colours printing voxel location information and
Colouring information；
According to the eight primary colours type-script plain color plate, the 3D models are successively printed using opaque material.
2. according to the method described in claim 1, it is characterized in that, the printing number of primary colors and second colouring information
Mapping relations are obtained by following manner：
The 3D printing equipment is calibrated, colour code is printed；
The colour code printed is measured, the mapping relations of printing number of primary colors and second colouring information are obtained.
3. according to the method described in claim 1, it is characterized in that, the color rendering method pair assembled side by side using voxel
The CMY three primary colours color separation version is handled, the step of obtaining eight primary colours type-script plain color plate of the model voxel, including：
It is in color method using the RIP parsings of printing voxel focus type, rasterizing processing is carried out to the CMY three primary colours color separation version,
Obtain the color separation version of CMY three primary colours color separation data；
Lamination process is carried out to the color separation version of the CMY three primary colours color separation data, obtains secondary colours R, G, B, tertiary colo(u)r(s) K and white
The voxel location information of W；
By described secondary colours R, G, B, tertiary colo(u)r(s) K and white W replace with corresponding printing primary colours, obtain the eight of the model voxel
Primary colours type-script plain color plate.
4. according to the method described in claim 1, it is characterized in that, the method further includes：
Judge the position attribution of the model voxel；
When the position attribution is surface profile voxel, determine that the printed material of the model voxel is primary colours material；
When the position attribution is voxel of object, determine that the printed material of the model voxel is internal packing material.
5. according to the method described in claim 1, it is characterized in that, the 3D models to be printed, are obtained by following manner：
The topographic data and color data for acquiring 3D objects, with the corresponding tri patch color of the stored in file format of setting and top
Dot position information；
The rasterizing processing of the slice and planar dimensions of elevation dimension is carried out to the tri patch color and vertex position information,
Generate the regularly arranged voxel of lattice；The height of the slice is identical as lattice height；
In the plane of each slice, rasterizing processing is carried out to the tri patch color and vertex position information；
The inside top of model surface voxel is determined using the method for curve difference according to the intersection of height slice and tri patch
Point position；
The colouring information of each voxel is obtained using the method for space interpolation；
The center location information of the voxel is obtained according to the vertex position information of the voxel；
The center location information of the voxel and colouring information are saved as into 3D models.
6. device is presented in a kind of 3D printing color of voxel focus type arranged side by side, which is characterized in that including：
Voxelization processing module obtains the location information of model voxel for carrying out voxelization processing to 3D models to be printed
With the first colouring information；
Conversion module carries out color space conversion to first colouring information, obtains for the color characteristics according to scanning device
To the second colouring information independently of equipment；
Three primary colours color separation module, for being closed according to the printing number of primary colors of 3D printing equipment and the mapping of second colouring information
System carries out CMY three primary colours color separation process to the model voxel, obtains the CMY three primary colours color separation versions of the model voxel；
Eight primary colours color separation modules, color rendering method for being assembled side by side using voxel to the CMY three primary colours color separation version into
Row processing, obtains eight primary colours type-script plain color plates of the model voxel；The eight primary colours type-script plain color plate includes eight primary colours
Print the location information and colouring information of voxel；
Print module, for according to the eight primary colours type-script plain color plate, using opaque material to the 3D models carry out by
Layer printing.
7. device according to claim 6, which is characterized in that the printing number of primary colors and second colouring information
Mapping relations are obtained by following manner：
The 3D printing equipment is calibrated, colour code is printed；
The colour code printed is measured, the mapping relations of printing number of primary colors and second colouring information are obtained.
8. device according to claim 6, which is characterized in that the eight primary colours color separation module is additionally operable to：
It is in color method using the RIP parsings of printing voxel focus type, rasterizing processing is carried out to the CMY three primary colours color separation version,
Obtain the color separation version of CMY three primary colours color separation data；
Lamination process is carried out to the color separation version of the CMY three primary colours color separation data, obtains secondary colours R, G, B, tertiary colo(u)r(s) K and white
The voxel location information of W；
By described secondary colours R, G, B, tertiary colo(u)r(s) K and white W replace with corresponding printing primary colours, obtain the eight of the model voxel
Primary colours type-script plain color plate.
9. device according to claim 6, which is characterized in that described device further includes voxel properties judgment module, is used for：
Judge the position attribution of the model voxel；
When the position attribution is surface profile voxel, determine that the printed material of the model voxel is primary colours material；
When the position attribution is voxel of object, determine that the printed material of the model voxel is internal packing material.
10. system is presented in a kind of 3D printing color, which is characterized in that the system comprises 3D printers and controller；Right is wanted
6-9 any one of them devices are asked to be set in the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810237677.5A CN108407290B (en) | 2018-03-21 | 2018-03-21 | Voxel parallel aggregation type 3D printing color presentation method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810237677.5A CN108407290B (en) | 2018-03-21 | 2018-03-21 | Voxel parallel aggregation type 3D printing color presentation method, device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108407290A true CN108407290A (en) | 2018-08-17 |
| CN108407290B CN108407290B (en) | 2020-09-01 |
Family
ID=63133245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810237677.5A Active CN108407290B (en) | 2018-03-21 | 2018-03-21 | Voxel parallel aggregation type 3D printing color presentation method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108407290B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334011A (en) * | 2018-11-02 | 2019-02-15 | 珠海赛纳打印科技股份有限公司 | Colored 3D printing method, printing equipment and terminal device |
| CN110253889A (en) * | 2019-07-11 | 2019-09-20 | 重庆大学 | A kind of more material 3D printing methods based on digital raster image processor |
| CN114185495A (en) * | 2021-10-20 | 2022-03-15 | 广州中望龙腾软件股份有限公司 | Gradient functional material printing method of SWC method, terminal and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150254502A1 (en) * | 2014-03-04 | 2015-09-10 | Electronics And Telecommunications Research Institute | Apparatus and method for creating three-dimensional personalized figure |
| CN106183433A (en) * | 2016-07-01 | 2016-12-07 | 青岛尤尼科技有限公司 | The dyeing apparatus printed for full-color 3D and full-color 3D Method of printing |
| CN107199699A (en) * | 2016-03-18 | 2017-09-26 | 三纬国际立体列印科技股份有限公司 | Colorful three-dimensional model cuts a layer Method of printing |
-
2018
- 2018-03-21 CN CN201810237677.5A patent/CN108407290B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150254502A1 (en) * | 2014-03-04 | 2015-09-10 | Electronics And Telecommunications Research Institute | Apparatus and method for creating three-dimensional personalized figure |
| CN107199699A (en) * | 2016-03-18 | 2017-09-26 | 三纬国际立体列印科技股份有限公司 | Colorful three-dimensional model cuts a layer Method of printing |
| CN106183433A (en) * | 2016-07-01 | 2016-12-07 | 青岛尤尼科技有限公司 | The dyeing apparatus printed for full-color 3D and full-color 3D Method of printing |
Non-Patent Citations (6)
| Title |
|---|
| 史玉生: "《3D打印技术概论》", 28 February 2016 * |
| 方肃: "《数字出版与印前技术》", 31 December 2012 * |
| 李文育: "《印前制作工艺及设备》", 31 January 2008 * |
| 李青山: "《着色配色技术手册》", 31 January 2006 * |
| 邓普君: "《现代印刷技术概论》", 31 December 2003 * |
| 郑海德: "《现代网印油墨选择与使用手册》", 31 December 2000 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334011A (en) * | 2018-11-02 | 2019-02-15 | 珠海赛纳打印科技股份有限公司 | Colored 3D printing method, printing equipment and terminal device |
| WO2020087962A1 (en) * | 2018-11-02 | 2020-05-07 | 珠海赛纳三维科技有限公司 | Color 3d printing method, printing apparatus and terminal device |
| JP2022506226A (en) * | 2018-11-02 | 2022-01-17 | チューハイ セイルナー スリーディー テクノロジー カンパニー リミテッド | Color 3D printing method, printing equipment and terminal equipment |
| JP7076047B2 (en) | 2018-11-02 | 2022-05-26 | チューハイ セイルナー スリーディー テクノロジー カンパニー リミテッド | Color 3D printing method, printing equipment and terminal equipment |
| CN110253889A (en) * | 2019-07-11 | 2019-09-20 | 重庆大学 | A kind of more material 3D printing methods based on digital raster image processor |
| CN114185495A (en) * | 2021-10-20 | 2022-03-15 | 广州中望龙腾软件股份有限公司 | Gradient functional material printing method of SWC method, terminal and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108407290B (en) | 2020-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108437449A (en) | 3D printing color rendering method, apparatus and system | |
| US20170217103A1 (en) | Techniques for color contoning in additive fabrication and related systems and methods | |
| CN108407290A (en) | 3D printing color rendering method, the apparatus and system of voxel focus type arranged side by side | |
| CN108381905A (en) | 3D printing color rendering method and device based on the diffusion of Octree error | |
| JP3007301B2 (en) | Method for obtaining a color gamut description for a color reproduction device | |
| JP3111032B2 (en) | Method and apparatus for color gamut calculation | |
| CN106127842B (en) | A kind of method and system of the face of combination distribution of light sources and reflection characteristic exposure 3D printing | |
| CN107696703B (en) | Ink amount upper limit setting device and method, and medium for storing the method | |
| WO2018154767A1 (en) | Three-dimensional molding method and three-dimensional molding machine | |
| Chen et al. | Color 3D Printing: Theory, method, and application | |
| US20210197492A1 (en) | Dimensional compensations for additive manufacturing | |
| EP3856499B1 (en) | Method and system for diffusing color error into additive manufactured objects | |
| CN108688145A (en) | Color three-dimensional printing method and three-dimensional printing equipment | |
| CN108734789A (en) | Coloring contour retraction method for colored 3D object | |
| JP4085232B2 (en) | Color gamut calculation apparatus, color gamut calculation method, and storage medium | |
| JP2018037761A (en) | Color conversion table generating device, color conversion table generating method, and color conversion table generating program | |
| CN111903117A (en) | Mapping between color spaces | |
| JP2003110864A (en) | Method and device for processing color image | |
| CN107209647A (en) | Handle the object for printing | |
| CN110253889A (en) | A kind of more material 3D printing methods based on digital raster image processor | |
| CN112823505B (en) | Color mapping method of gradient color pattern | |
| CN108437440A (en) | 3D printing color rendering method, apparatus and system based on color management | |
| CN108621551B (en) | Method for optimized color control in a printing press | |
| JP2018088615A (en) | Colorimetric value inspection device, inspection method, and inspection program | |
| CN107471826A (en) | Print head assembly and 3 D-printing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |