CN106504285A - SMD facial film template construction method and system - Google Patents
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- 238000010276 construction Methods 0.000 title claims description 18
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- 238000005516 engineering process Methods 0.000 claims description 8
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Abstract
The present invention provides a kind of SMD facial film template constructing system method and system, obtain user image data, user image data carries user's face image and default with reference to object image, obtain default sized data of the object of reference in user image data, calculate image scaling ratio, user face 2D view data is obtained according to image scaling ratio and user image data, user face 2D view data is converted to user face 3D rendering data, according to user face 3D rendering data, the SMD facial film template for user is built.In whole process, based on the user's face image for obtaining and default reference object image, true, accurate user face 3D rendering is obtained, then SMD facial film template is built based on 3D rendering, the SMD facial film template for meeting active user's shape of face can be constructed, and operation readiness is brought to user.
Description
Technical field
The present invention relates to template constructing technology field, more particularly to SMD facial film template construction method and system.
Background technology
Facial film is air and the pollution for being temporarily isolating the external world using the of short duration time for being covered in face, improves skin temperature,
The pore of skin expansion, promotes sweat gland secretion and metabolism, the oxygen content of skin is increased, and facial film is conducive to skin exclusion table
The metabolic product of chrotoplast and the oil substances of accumulation, the moisture in facial film penetrate into the horny layer of skin epidermis, skin
Become soft, increase elasticity.
Exactly facial film has above-mentioned advantage, and increasing people uses facial film at present.But existing SMD facial film majority
It is that production firm builds facial film template according to unified size or a number of human face data, due to data sampling
Sample is few, and modeling test object scope is narrower, builds in facial film template procedure and cannot be set for different user facial features
Put, cause the SMD facial film for producing be brought into close contact with user's face, reduce facial film using effect, also bring not to user
Just operation.
Content of the invention
It is based on this, it is necessary to which the facial film template constructed for typically SMD facial film template building mode does not meet difference
Face, the problem of operation of making troubles to user, there is provided a kind of can constructing respectively meets the SMD of different face templates
Facial film template construction method and system, bring operation readiness to user.
A kind of SMD facial film template construction method, including step：
User image data is obtained, user image data carries user's face image and default with reference to object image, presets
Known to the size of object of reference；
Default sized data of the object of reference in user image data is obtained, and according to default object of reference in user images number
The known dimensions of sized data and default object of reference according in, calculate image scaling ratio；
User face 2D view data is obtained according to image scaling ratio and user image data；
User face 2D view data is converted to user face 3D rendering data；
According to user face 3D rendering data, the SMD facial film template for user is built.
A kind of SMD facial film template constructing system, including：
Image collection module, for obtaining user image data, user image data carries user's face image and pre-
If with reference to object image, presetting known to the size of object of reference；
Pantograph ratio computing module, for obtaining sized data of the default object of reference in user image data, and according to pre-
If sized data of the object of reference in user image data and the known dimensions of default object of reference, image scaling ratio is calculated；
2D image collection module, for obtaining user face 2D picture numbers according to image scaling ratio and user image data
According to；
Modular converter, for being converted to user face 3D rendering data by user face 2D view data；
Template builds module, for according to user face 3D rendering data, building the SMD facial film template for user.
The SMD facial film template constructing system method and system of the present invention, obtains user image data, user image data
Carry user's face image and default with reference to object image, obtain default sized data of the object of reference in user image data,
Image scaling ratio is calculated, user face 2D view data is obtained according to image scaling ratio and user image data, by user's face
Portion's 2D view data is converted to user face 3D rendering data, according to user face 3D rendering data, builds the patch for user
Chip facial film template.In whole process, based on the user's face image for obtaining and default reference object image, obtain true, accurate
True user face 3D rendering, then SMD facial film template is built based on user face 3D rendering, i.e., can construct and meet use
The SMD facial film template of family shape of face, brings operation readiness to user.
Description of the drawings
Fig. 1 is the schematic flow sheet of SMD facial film template construction method one embodiment of the invention；
Fig. 2 is the schematic flow sheet of second embodiment of SMD facial film template construction method of the invention；
Fig. 3 is the structural representation of SMD facial film template constructing system one embodiment of the invention；
Fig. 4 is the structural representation of second embodiment of SMD facial film template constructing system of the invention；
Fig. 5 is SMD facial film template construction method of the invention and operation chart in the one of application example of system.
Specific embodiment
As shown in figure 1, a kind of SMD facial film template construction method, including step：
S100：User image data is obtained, user image data carries user's face image and default with reference to object image,
Known to the size of default object of reference.
User image data includes user's face image and default with reference to object image, and user image data can be specifically
After the picture that user has shot in advance, upload or user shoot the photo of upload immediately, and such as user is using mobile phone or phase
The equipment such as machine are shot from taking pictures, and are uploaded from taking pictures to server.Default object of reference is the reference object for pre-setting, and presets ginseng
, it is known that size includes length and width and height here, specifically, default object of reference can be identity card, known chi for size according to thing
Books of very little member card and known dimensions etc..In actual applications, user can be taken a picture and upload clothes certainly with hand-held identity card
Business device, server carry out subsequent treatment after the user image data is received.
S200：Default sized data of the object of reference in user image data is obtained, and according to default object of reference in user
The known dimensions of sized data and default object of reference in view data, calculate image scaling ratio.
In the user image data that step S100 is obtained, default size of the object of reference in the user image data is obtained
Data, due to presetting object of reference size, it is known that based on the actual sized data of default object of reference and in user image data
Sized data can calculate image scaling ratio.Non-essential, in order to avoid presetting object of reference and use in user image data
Family face is in " remote " " near " to image scaling than the impact of computational accuracy, can select default object of reference and user's face
User image data in the same plane is calculating image scaling ratio, or prompting user needs before execution step S100
Upload default object of reference (identity card) and face photo in the same plane.In addition, it is necessary to, it is noted that due to user face
Certain angle may be inclined with default object of reference and shoot photo, such as user side face shoots takes pictures and be uploaded to service certainly
Device, now, due to user be the image scaling of the diverse location in the picture that side face shoots than differing, can be with base to this
Many to obtain with the known dimensions of default object of reference in default sized data of the object of reference in user image data of diverse location
Individual diverse location image scaling ratio, more accurately to obtain user face 2D images in subsequent operation.
S300：User face 2D view data is obtained according to image scaling ratio and user image data.
The image scaling ratio of the user image data and S200 based on step S100, you can know the real face of user
2D view data, then user face 2D images are drawn based on user face 2D view data.Above-mentioned acquisition user face 2D images
Data procedures can be realized the correlation technique such as face reconstruct and face recovery and recognition of face by computer to realize.
More particularly, as shown in Fig. 2 wherein in one embodiment, step S300 includes：
S320：User's face feature is extracted according to user image data.
User's face feature can include user's shape of face, user face organ relative position, user face organ (eyes,
Nose, face and ear) size and shape and the user face colour of skin etc., implementing extracting mode can be by having
The computer of face identification functions is realizing data processing and characteristic extraction procedure.
S340：According to user's face feature, data of the user face in preset coordinate point are obtained.
Coordinate grid is set in user's face image, the dense degree of coordinate points can be based on actual feelings in coordinate grid
The needs of condition are set, and can arrange the coordinate points than comparatively dense when high precision is needed, can be with when needing precision relatively low
More relaxed coordinate points are set, to reduce data processing amount.Based on user's face feature, user face is obtained in preset coordinate
The data of point, can reconstruct the true 2D images of user based on the corresponding user's face data of these coordinate points.Step S340 can
Be integrated together with user image data with the coordinate spot net for being interpreted as pre-setting, be based on user's face feature,
To extract data of the user face in preset coordinate point.Can draw for subsequent operation in step S340 and become apparent from, accurately
Deng user face 2D images, the data of the multiple preset coordinate points of user face can be obtained, for example, obtain user face default 83
The data of individual coordinate points.
S360：According to data and the image scaling ratio of user face preset coordinate point, user face 2D images are drawn.
The image scaling that the data and step S200 of the user face preset coordinate point obtained based on step S340 are obtained
Than drawing user face 2D images.Non-essential, this data handling procedure can be right by computer face reconfiguration technique
Data are accurately processed.
S400：User face 2D view data is converted to user face 3D rendering data.
Final facial film template is 3D templates, in this regard, needing for user face 2D view data to be converted to 3D rendering data.?
2D images are converted to 3D rendering data and relevant parameter in 2D view data can be modified, be calculated based on historical empirical data
And process.Non-essential, historical empirical data can obtain more accurate result based on big data analysis mode.For example
The 2D view data and 3D rendering data of different user can be obtained, is carried out greatly based on these 2D view data and 3D rendering data
Data analysiss, search corresponding relation between 2D view data and 3D rendering data, step S400 again based on the 2D view data with
Between 3D rendering data, user face 2D view data is converted to user face 3D rendering data by corresponding relation.
Non-essential, as shown in Fig. 2 wherein in one embodiment, step S400 includes：
S420：According to user's face feature, default face 2D images and 3D rendering correlation coefficient ratio is searched.
S440：According to user face 2D view data and the face 2D images for finding and 3D rendering correlation coefficient ratio,
Obtain user face 3D rendering data.
In actual applications, between the face 2D view data of different user and face's 3D rendering data, corresponding relation may
There is certain difference, such as male and female face, male face cheekbone is generally projected than female face cheekbone, and this is needed
Selection is executed to corresponding relation between 2D view data and 3D rendering data based on user's face feature, before selector is fated
Corresponding relation between the 2D view data and 3D rendering data of user, then based on 2D view data and the 3D rendering data for selecting it
Between corresponding relation, user face 2D view data is converted to user face 3D rendering data, final acquisition more conforms to user
The 3D rendering data of true face.
S500：According to user face 3D rendering data, the SMD facial film template for user is built.
By 3D data technology, according to user face 3D rendering data, the SMD facial film template for user is built.Example
3D printing technique can be adopted such as, according to user face 3D rendering data, to build the SMD facial film template for user.Tool
For body, it is further to improve the final SMD facial film template precision for building, needs to consider in 3D data technology engineerings
The differentiation of process data, selects suitable process data.
Wherein in one embodiment, step S500 includes：
Step one：According to user's face feature, selection differencess 3D process datas.
Step 2：According to user face 3D rendering data, using differentiation 3D process data, the paster for user is built
Formula facial film template.
Different user shape of face, when its 3D rendering data carries out 3D technology can there is some difference, and user's shape of face can be with
Embodied by user's face feature, therefore, be to improve the accuracy for building SMD facial film template, need first according to user's face
Portion's feature, selection differencess 3D process datas, further according to user face 3D rendering data, using differentiation 3D process data, structure
Build the SMD facial film template for user.
The SMD facial film template constructing system method of the present invention, obtains user image data, and user image data is carried to be used
Family face image and default with reference to object image, default sized data of the object of reference in user image data of acquisition, calculate figure
As pantograph ratio, user face 2D view data is obtained according to image scaling ratio and user image data, user face 2D is schemed
As data are converted to user face 3D rendering data, according to user face 3D rendering data, the SMD face for user is built
Film template.In whole process, based on the user's face image for obtaining and default reference object image, obtain and truly, accurately use
Family face 3D rendering, then SMD facial film template is built based on 3D rendering, i.e., can construct the patch for meeting active user's shape of face
Chip facial film template, brings operation readiness to user.
Wherein in one embodiment, SMD facial film template construction method also includes：
Step one：Judge whether user image data meets preset requirement, preset requirement includes the clear of user's face image
Clear degree is required, the image definition requirements of default object of reference, user face and default object of reference relative position are required, user images
Size of data is required and recognition of face is required.
Step 2：If meeting, the default object of reference of entrance acquisition is in user image data the step of sized data.
Step 3：If not meeting, user image data is abandoned.
User image data is detected, judges whether which meets preset requirement, to satisfactory user images number
According to next step operation is carried out, incongruent user image data is abandoned, non-essential, user can also be pointed out to re-shoot.
Specifically, preset requirement is set in advance, and which specifically can be required from the definition of user's face image, default object of reference
Image definition requirements, user face and default object of reference relative position require, user image data size requirements and people
Face recognizes several aspects such as requirement to be set.
With identity card as default with reference to as example in detail above-mentioned judge process will be described below.
1st, image correctly cannot be parsed, it is possible to be not an image file or have data destruction.
2nd, the image that user uploads is too big, and the length of image pixel dimensions is wide more than 4096 pixels.
3rd, the face in picture is required according to detection is not met.Possible the reason for is：Head when the part of the body cavity above the diaphragm housing the heart and lungs, shooting is not being moved
Dynamic, do not face camera lens (have new line to bow, the situation of left avertence right avertence), smile, wear dark glasses, etc..Suggestion prompting user retake.
4th, not only one face is detected in picture.
5th, identity card back side image is not found in picture.Possibly there is no identity card back side image, imperfect, size
Too little or block excessive.
6th, the identity card in picture is required according to detection is not met.Possible the reason for is：Identity card is inclined causes length-width ratio not
Correctly, identity card not precalculated position, etc..Suggestion prompting user retake.
As shown in figure 3, a kind of SMD facial film template constructing system, including：
Image collection module 100, for obtaining user image data, user image data carry user's face image and
Default reference object image, presets known to the size of object of reference.
Pantograph ratio computing module 200, for obtaining sized data of the default object of reference in user image data, and according to
Sized data of the default object of reference in user image data and the known dimensions of default object of reference, calculate image scaling ratio.
2D image collection module 300, for obtaining user face 2D figures according to image scaling ratio and user image data
As data.
Modular converter 400, for being converted to user face 3D rendering data by user face 2D view data.
Template builds module 500, for according to user face 3D rendering data, building the SMD facial film mould for user
Plate.
The SMD facial film template constructing system of the present invention, image collection module 100 obtain user image data, user images
Data carry user's face image and default with reference to object image, and pantograph ratio computing module 200 obtains default object of reference in user
Sized data in view data, calculates image scaling ratio, and 2D image collection module 300 is schemed according to image scaling ratio and user
As data acquisition user face 2D view data, user face 2D view data is converted to user face 3D by modular converter 400
View data, template build module 500 according to user face 3D rendering data, build the SMD facial film template for user.
In whole process, based on the user's face image for obtaining and default reference object image, true, accurate user face 3D is obtained
Image, then SMD facial film template is built based on 3D rendering, i.e., can construct the SMD facial film for meeting active user's shape of face
Template, brings operation readiness to user.
As shown in figure 4, wherein in one embodiment, 2D image collection module 300 includes：
Feature extraction unit 320, for extracting user's face feature according to user image data.
Coordinate points data capture unit 340, for according to user's face feature, obtaining user face in preset coordinate point
Data.
Drawing unit 360, for the data according to user face preset coordinate point and image scaling ratio, draws user's face
Portion's 2D images.
As shown in figure 4, wherein in one embodiment, modular converter 400 includes：
Relation searching unit 420, for according to user's face feature, searching default face 2D images related to 3D rendering
Coefficient ratio.
Converting unit 440, for according to user face 2D view data and the face 2D images for finding and 3D rendering
Correlation coefficient ratio, obtains user face 3D rendering data.
Wherein in one embodiment, template builds module 500 to be included：
Technology select unit, for according to user's face feature, selection differencess 3D process datas.
Construction unit, for according to user face 3D rendering data, using differentiation 3D process data, builds and is directed to user
SMD facial film template.
Wherein in one embodiment, SMD facial film template constructing system also includes：
Judge module, for judging whether user image data meets preset requirement.
First processing module, for when the user image data meets the preset requirement, controlling the pantograph ratio
Computing module 200 executes the operation for obtaining default object of reference sized data in the user image data.
Second processing module, for when user image data does not meet preset requirement, abandoning user image data.
Preset requirement includes the definition requirement of user's face image, the image definition requirements of default object of reference, user
Face and default object of reference relative position are required, user image data size requirements and recognition of face are required.
For further explaining in detail technical scheme and the band of SMD facial film template construction method of the invention and system
The beneficial effect that comes, using instantiation and will combine accompanying drawing 5 and be described in detail below.
As shown in figure 5, user is first uploaded from taking pictures, in taking pictures certainly, record has user's facial image and identity card picture
(default object of reference), server are carried out screening, are filtered to the photo that user uploads, and are stored for qualified photo, for
Underproof photo is abandoned, and points out user to re-shoot.Server is processed to qualified picture data, obtains user
Face's 2D view data, then user face 2D view data is converted to user face 3D rendering data, and by user face
3D rendering carries out technology process, generates the SMD facial film template that can be brought into close contact with user face, by user's customization
SMD facial film template deliver to user.
Above example only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art,
On the premise of without departing from present inventive concept, some deformations and improvement can also be made, these belong to protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of SMD facial film template construction method, it is characterised in that including step：
User image data is obtained, the user image data carries user's face image and default with reference to object image, described
Known to the size of default object of reference；
Sized data of the default object of reference in the user image data is obtained, and according to the default object of reference in institute
The known dimensions of the sized data and the default object of reference in user image data are stated, image scaling ratio is calculated；
User face 2D view data is obtained according to described image pantograph ratio and the user image data；
The user face 2D view data is converted to user face 3D rendering data；
According to the user face 3D rendering data, the SMD facial film template for user is built.
2. SMD facial film template construction method according to claim 1, it is characterised in that described contracted according to described image
Put than and the user image data obtain user's face's 2D view data the step of include：
User's face feature is extracted according to the user image data；
According to user's face feature, data of the user face in preset coordinate point are obtained；
According to the data and described image pantograph ratio of user face preset coordinate point, user face 2D images are drawn.
3. SMD facial film template construction method according to claim 2, it is characterised in that described by the user face
The step of 2D view data is converted to user face 3D rendering data includes：
According to user's face feature, default face 2D images and 3D rendering correlation coefficient ratio is searched；
According to the user face 2D view data and the face 2D images for finding and 3D rendering correlation coefficient ratio, used
Family face 3D rendering data.
4. SMD facial film template construction method according to claim 2, it is characterised in that described according to user's face
Portion's 3D rendering data, building the step of being directed to the SMD facial film template of user includes：
According to user's face feature, selection differencess 3D process datas；
According to the user face 3D rendering data, using the differentiation 3D process data, build for the SMD of user
Facial film template.
5. SMD facial film template construction method according to claim 1, it is characterised in that the acquisition user images number
According to the step of after also include：
Judge whether the user image data meets preset requirement；
If meeting, the entrance acquisition default object of reference is in the user image data the step of sized data；
If not meeting, the user image data is abandoned；
The preset requirement includes the definition requirement of user's face image, the image definition requirements of default object of reference, user
Face and default object of reference relative position are required, user image data size requirements and recognition of face are required.
6. a kind of SMD facial film template constructing system, it is characterised in that include：
Image collection module, for obtaining user image data, the user image data carries user's face image and pre-
If reference object image, known to the size of the default object of reference；
Pantograph ratio computing module, for obtaining sized data of the default object of reference in the user image data, and root
The known dimensions of sized data and the default object of reference according to the default object of reference in the user image data, meter
Nomogram is as pantograph ratio；
2D image collection module, for obtaining user face 2D figures according to described image pantograph ratio and the user image data
As data；
Modular converter, for being converted to user face 3D rendering data by the user face 2D view data；
Template builds module, for according to the user face 3D rendering data, building the SMD facial film template for user.
7. SMD facial film template constructing system according to claim 6, it is characterised in that the 2D image collection module
Including：
Feature extraction unit, for extracting user's face feature according to the user image data；
Coordinate points data capture unit, for according to user's face feature, obtaining number of the user face in preset coordinate point
According to；
Drawing unit, for data and described image pantograph ratio according to user face preset coordinate point, draws user
Face's 2D images.
8. SMD facial film template constructing system according to claim 7, it is characterised in that the modular converter includes：
Relation searching unit, for according to user's face feature, searching default face 2D images and 3D rendering phase relation
Number ratio；
Converting unit, for related to 3D rendering according to the user face 2D view data and the face's 2D images for finding
Coefficient ratio, obtains user face 3D rendering data.
9. SMD facial film template constructing system according to claim 7, it is characterised in that the template builds module bag
Include：
Technology select unit, for according to user's face feature, selection differencess 3D process datas；
Construction unit, for according to the user face 3D rendering data, using the differentiation 3D process data, structure is directed to
The SMD facial film template of user.
10. SMD facial film template constructing system according to claim 6, it is characterised in that also include：
Judge module, for judging whether the user image data meets preset requirement；
First processing module, calculates for when the user image data meets the preset requirement, controlling the pantograph ratio
Module executes the operation for obtaining default object of reference sized data in the user image data；
Second processing module, for when the user image data does not meet the preset requirement, abandoning the user images
Data；
The preset requirement includes the definition requirement of user's face image, the image definition requirements of default object of reference, user
Face and default object of reference relative position are required, user image data size requirements and recognition of face are required.
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| CN201610986552.3A CN106504285A (en) | 2016-11-09 | 2016-11-09 | SMD facial film template construction method and system |
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| CN201610986552.3A Pending CN106504285A (en) | 2016-11-09 | 2016-11-09 | SMD facial film template construction method and system |
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