CN109102472A - A kind of method that the imitative two dimension of three-dimensional models production caricature special efficacy after rendering - Google Patents
A kind of method that the imitative two dimension of three-dimensional models production caricature special efficacy after rendering Download PDFInfo
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- CN109102472A CN109102472A CN201810809812.9A CN201810809812A CN109102472A CN 109102472 A CN109102472 A CN 109102472A CN 201810809812 A CN201810809812 A CN 201810809812A CN 109102472 A CN109102472 A CN 109102472A
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- 238000009877 rendering Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010021403 Illusion Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/77—Retouching; Inpainting; Scratch removal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
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Abstract
A kind of method that the imitative two dimension of three-dimensional models production caricature special efficacy after rendering: (1) input video completes the cutting to figure；(2) track of construction feature point；(3) key frame in video is extracted to be used to rebuild；(4) three-dimensional point cloud model is obtained；(5) 3D engine animation effect is rendered；(6) three dimensional point cloud is converted into 2-D data to project in 2 D animation scene, draws contour line and obtains two dimensional image；(7) two dimensional image is merged with corresponding key frame, obtains 2 D animation frame；(8) it repeats step (6) and (7) obtains continuous animation frame and play.The present invention has very great help to the optimization of animation, guarantees that animation effect reaches more excellent by three-dimensional modeling with relatively more accurate and true effect is come the thought of design of expression person.It can be reduced the workload of staff, efficiently complete in a relatively short period of time, reduce cost.By three-dimensional modeling, special efficacy is truer, more three-dimensional sense.
Description
Technical field
The present invention relates to a kind of methods that caricature special efficacy is made after three-dimensional imitative two dimension modeling rendering, belong to caricature manufacturing technology
Field.
Background technique
3d modeling seeks to the image that three-dimensional animation production is shown inside computer, unlike the three-dimensional in display life is dynamic
It draws, there is certain true space length, seek to show three-dimensional effect in the plane, show graph image more
Really more there is three-dimensional sense.
Image knowledge inside computer looks like the 3d figure that the true world is the same, and face is shown on computers,
Purpose is exactly to allow people to see later perceptual image really, and the characteristic of human eye is exactly near big and far smaller stroke three-dimensional sense, is calculated
Machine is utilized planar space, but we have seen that be 3 D stereo graph image, caught computer
The difference of color gray scale seems human eye and generates visual illusion.
3d is modeled in the high luminance color of the part display color distinctness protruded at the edge of three-dimension object, and sunk
Part is influenced by light, and display is dark-coloured, and this effect is widely used in terms of webpage design or other.If drawn
For 3D text processed it is necessary to which high luminance color is arranged in incipient position, the place that other edges go out uses low-light level color, low-light level color
The effect for sketching the contours of exterior contour is exactly played, can thus show the stereoscopic effect of 3d text.
What kind of effect image is finally presented, if can reach the extremely strong sense of reality will depend on it is last
Rendering effect, render Globals are the included tools of software, this itself depends on the function of software, also the certain rendering skill of to master
Ingeniously, the rendering effect in only later period is true to nature, can see the cartoon making of the sense of reality.
Summary of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of imitative two-dimentional production caricature special efficacy after modeling rendering of three-dimensional
Method, steps are as follows:
(1) input video, get parms top, below, left, right, elliptical major and minor axis length a, b of calculation window
And central coordinate of circle (x0, y0, z0), the role in video is cut, it in the frame buffer by the information storage after cutting, will
Pixel output in frame buffer, completes the cutting process to figure；
(2) feature extracting and matching is carried out to two field pictures adjacent in video, according to the track of matching construction feature point；
(3) processing analysis is carried out to video, rejects redundancy, extracted key frame in video and be used to rebuild；
(4) corresponding three-dimensional point cloud is obtained according to key frame, and then obtains three-dimensional point cloud model；
(5) 3D engine animation effect is rendered；
(6) three dimensional point cloud is read, 2-D data is converted thereof into and projects in 2 D animation scene, by 2 D animation
Contour line in scene is drawn to obtain corresponding two dimensional image；
(7) obtained two dimensional image is merged with corresponding key frame, obtains a 2 D animation frame；
(8) it repeats step (6) and (7) obtains continuous animation frame and play.
The present invention is further arranged to, and sets the duration to the two dimensional image that step (6) obtains.
The present invention is further arranged to, and the continuous animation frame obtained to step (8) is completed in display-memory space
Corresponding Special display effect effect forms target object figure, is then output to display screen.
The present invention is further arranged to, and in step (4), is pre-processed to point cloud data, and the pretreatment includes filter
Wave denoising, sampling, reparation, three-dimensional interpolation, splicing and cutting operation.
The present invention is further arranged to, due to point cloud data constitute model there are data destructions the phenomenon that, need to be by filling out
It fills hole and carrys out polishing, repaired.
In conclusion the invention has the following advantages:
(1) by three-dimensional modeling, with relatively more accurate and true effect is come the thought of design of expression person, to animation
Optimization has very great help, and guarantees that animation effect reaches more excellent.
(2) it can be reduced the workload of staff, efficiently complete in a relatively short period of time, reduce cost.
(3) by three-dimensional modeling, special efficacy is truer, more three-dimensional sense.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
A kind of method that the imitative two dimension of three-dimensional models production caricature special efficacy after rendering, steps are as follows:
(1) input video, get parms top, below, left, right, elliptical major and minor axis length a, b of calculation window
And central coordinate of circle (x0, y0, z0), the role in video is cut, it in the frame buffer by the information storage after cutting, will
Pixel output in frame buffer, completes the cutting process to figure；
(2) feature extracting and matching is carried out to two field pictures adjacent in video, according to the track of matching construction feature point；
(3) processing analysis is carried out to video, rejects redundancy, extracted key frame in video and be used to rebuild；
(4) corresponding three-dimensional point cloud is obtained according to key frame, and then obtains three-dimensional point cloud model；It wherein needs to a cloud number
According to being pre-processed, including filtering and noise reduction, sampling, reparation, three-dimensional interpolation, splicing and cutting operation.Since point cloud data is constituted
Model the phenomenon that there are data destructions, need to be repaired by filling hole come polishing.
(5) 3D engine animation effect is rendered；
(6) three dimensional point cloud is read, 2-D data is converted thereof into and projects in 2 D animation scene, by 2 D animation
Contour line in scene is drawn to obtain corresponding two dimensional image, and sets the duration；
(7) obtained two dimensional image is merged with corresponding key frame, obtains a 2 D animation frame；
(8) it repeats step (6) and (7) obtains continuous animation frame and play, continuous animation frame is deposited in display
Corresponding Special display effect effect is completed in memory space, is formed target object figure, is then output to display screen.
Using caricature special efficacy is made after the imitative two dimension modeling rendering of three-dimensional, 3-D technology and two dimensional technique can be combined,
Show the three-dimensional sense and succinct sense of picture to greatest extent.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. making the method for caricature special efficacy after a kind of three-dimensional imitative two dimension modeling rendering, which is characterized in that steps are as follows:
(1) input video, get parms top, below, left, right, elliptical major and minor axis length a, b of calculation window and circle
Heart coordinate (x0, y0, z0), cuts the role in video, and in the frame buffer by the information storage after cutting, frame is delayed
The pixel output in device is rushed, the cutting process to figure is completed；
(2) feature extracting and matching is carried out to two field pictures adjacent in video, according to the track of matching construction feature point；
(3) processing analysis is carried out to video, rejects redundancy, extracted key frame in video and be used to rebuild；
(4) corresponding three-dimensional point cloud is obtained according to key frame, and then obtains three-dimensional point cloud model；
(5) 3D engine animation effect is rendered；
(6) three dimensional point cloud is read, 2-D data is converted thereof into and projects in 2 D animation scene, by 2 D animation scene
In contour line drawn to obtain corresponding two dimensional image；
(7) obtained two dimensional image is merged with corresponding key frame, obtains a 2 D animation frame；
(8) it repeats step (6) and (7) obtains continuous animation frame and play.
2. making the method for caricature special efficacy after three-dimensional imitative two dimension modeling rendering according to claim 1, which is characterized in that right
The two dimensional image that step (6) obtains sets the duration.
3. making the method for caricature special efficacy after three-dimensional imitative two dimension modeling rendering according to claim 1, which is characterized in that right
The continuous animation frame that step (8) obtains completes corresponding Special display effect effect in display-memory space, forms target pair
As figure, it is then output to display screen.
4. making the method for caricature special efficacy after three-dimensional imitative two dimension modeling rendering according to claim 1, which is characterized in that
In step (4), point cloud data is pre-processed, the pretreatment includes filtering and noise reduction, sampling, reparation, three-dimensional interpolation, splicing
And cutting operation.
5. making the method for caricature special efficacy after three-dimensional imitative two dimension modeling rendering according to claim 4, which is characterized in that by
In point cloud data constitute model there are data destructions the phenomenon that, need to by filling hole come polishing, be repaired.
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