KR102006593B1 - Digital waorking system for special makeup using photogrammetry and 3d printer and the digital working method using this - Google Patents

Abstract

The present invention relates to a digital work system for special makeup using a three-dimensional printer and a digital work method using the same. The digital work system for special makeup obtains data from a photographed image of a subject in order to generate an output object for special makeup and output the same to the three-dimensional printer, generates a mesh by post-processing the same, and compares the actual size of the output object, i.e. a plurality of molds and the subject, thereby helping advance the technology in the special makeup by fusing the photogrammetry and the three-dimensional printing technology. In addition, by generating three-dimensional modeling data using a photogrammetry method and outputting a product using the three-dimensional printer, effectiveness for the digital work of the special makeup can be greatly increased.

Description

TECHNICAL FIELD [0001] The present invention relates to a digital working system for a special makeup utilizing a metric and a 3D printer, and a digital working method using the same. [0002]

The present invention relates to a digital working system for a special dress using a photogrammetry and a 3D printer, and a digital working method using the same. More particularly, the present invention relates to a 3D working method using a 3D printer, And a digital work system for a special makeup utilizing a 3D printer and a digital work method using the same.

With the rapid development of science and technology, human life expectancy has been extended, and efforts to improve the quality of life have been made in various directions.

However, in industrialization, the number of persons with disabilities who are injured by unexpected traffic accidents, industrial accidents, illnesses, etc.

Anaplastology refers to the art and science of restoring parts of a body that have been lost by disease, accident, or inherited disability using artificial devices, including facial, somato, and ocular prostheses .

Through Ana Plastolojji (Molding Prostheses), you can improve your quality of life through an enhanced aesthetic appearance by instilling confidence to participate actively in social life.

Molded prosthesis is a personalized manufacture and should look natural without discomfort even when worn for a long time.

Since the application area is mainly face and hand parts which are difficult to cover with clothes, it should have similar color and texture to real skin, and it is required to work precisely because of routine management for daily use by attaching with medical adhesive or loosening of prosthetic device.

The dressing is to express the actors appearing in movies or TV broadcasts appropriately to the screenplay or scenarios. It gives the illusion effect by using color or attaches a prosthetics appliance which is made in advance to the actor's body, And the like.

In general, the task of maximizing the visual realism by attaching the prosthesis to the body part of the actor is called the special makeup, and the production and application of the cosmetic prosthesis, which makes the appearance close to the real thing, .

To make a prosthesis, a body model that accurately reproduces the body part is required, so the impression making process, that is, the life cast process, must be performed.

According to the National Competency Standards (NCS) in 2018, the life-casting process presented in the special effects make-up module covers the face and hair of the model, puts a bald cap on it, To the skin.

After that, alginate mixed with water is applied to a certain thickness as it flows down from forehead, and then fixed with a plaster bandage.

Impression materials used for impression are made of alginate or silicone. If you are not a proficient expert, you will not be able to breathe comfortably in the course of applying alginate or silicone. You can not use spirit gum, Gingival bandages, etc. may contact the skin, causing contact dermatitis or allergic reactions.

If you are casting the whole face rather than the face, the inconvenience and the risk burden that you will feel will increase.

Particularly if the life-cast process is carried out to reconstruct facial defects or deformities caused by accidents or diseases, it is imperative to protect the physician and precisely cast the site.

In the meantime, Photogrammetry is a method of building three-dimensional shape information based on two-dimensional photographs. It uses several pieces of photograph information to find the position information of an object and a camera, And the synthesized data is converted into 3D data to generate modeling data.

The use of photogrammetric method to construct three-dimensional shape information based on two-dimensional photographs is a good way to solve the problems that arise in the process of using laser scanner .

A method of generating a three-dimensional face model using a two-dimensional face front image "(hereinafter referred to as" prior art ") of Patent No. 10-0372811, which was invented in view of the above.

The prior art includes a step of inputting a two-dimensional frontal photo image of a specific face, a step of setting control points in the input two-dimensional image, and a step of transforming the three- And mapping a texture of the two-dimensional image to a three-dimensional deformation model.

However, since the prior art is merely generating a three-dimensional face model from a two-dimensional frontal face photograph of a specific face, there are limitations in applying it to the photogrammetry and anaoplastology as described above.

In other words, the prior art is that the face of an actor who wants to make a special makeup, the actual size of the face of the handicapped who is born with a part of the body damaged by unexpected traffic accidents, industrial accidents, diseases, Because the size, shape, and position of the output object are not directly applicable to the output object based on the three-dimensional face model.

Patent No. 10-0372811

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a photomask which combines a photogallery and 3D printing technology, A digital work system for a dressing, and a digital work method using the same.

In addition, the present invention generates a 3D modeling data using a photogrammetric method and outputs a result to a 3D printer, thereby making it possible to significantly improve the efficiency of the digital work of a special makeup. And a digital work method using the same.

In order to achieve the above object, the present invention provides a moving object which is movable along a moving path having a predetermined radius around a subject to be photographed, which is a subject for special dressing, A single camera mounted on the moving body so as to be capable of photographing the face, head and neck of the person to be photographed for each of a plurality of stop positions set at regular intervals on a path; A camera controller for controlling the camera to photograph the subject to be photographed by rotating the camera to overlap the subject at least once or more at each of the plurality of stop positions using a zoom-in and zoom-out function of the camera A photographing unit including; The point cloud is generated by calculating and reading imaging image information of a plurality of the to-be-photographed persons photographed at least once at each of the plurality of stop positions by the photographing unit, and the created point clouds are matched (matched) a data acquisition unit forming a mesh which is a set of polygons; The data capacity of the mesh formed by the data acquisition unit is exported in the form of output data in which the number of triangles constituting the polygon is reduced within a range that the shape information is not distorted when the 3D shape is outputted by the 3D printer a post-processing unit for exporting the data; And a data processing unit for reading out the output data and processing the output object to be divided into a plurality of molds based on a specific position and then outputting the key to each of the plurality of molds so that the plurality of the output molds can be assembled with each other, And at least one output marker formed on an outer surface of one of the plurality of the molds, and a control unit for controlling the image forming unit to hide the hair of the person to be photographed before photographing by the photographing unit And an output comparing unit including an analyzer for comparing dimensions of the at least one actual marker mounted on the hood and the at least one actual marker mounted on the hood. .

According to another aspect of the present invention, there is provided a hair styling method comprising the steps of: attaching a hood for covering a hair of a person to be photographed, which is a subject for special dressing, so that an upper body including a face, A rail which forms a movement path having a radius of a predetermined size centered on the person to be photographed which is stationary and reversibly rotatable at a predetermined position, and a movable member which is movable on the rail, A second step of setting a camera mounted on the gimbal to be restrained; The moving object may be stopped for each of a plurality of stop positions spaced equidistantly on the rail, and then the camera may be rotated so that the photographed image of the to-be-photographed person overlaps a certain portion, or the zoom- A third step of photographing the subject to be photographed at least once at each position to generate a photographed image of the subject to be photographed; A fourth step of the data acquiring unit reading the plurality of photographed image information of the photographee and computing the point clouds generated by the arithmetic operation unit by the output data generator to form a mesh which is a set of polygons; ; When the processor reads the mesh, the processor exports the data capacity of the mesh in the form of output data in which the number of triangles constituting the polygon is reduced to such a degree that the shape information is not distorted when the 3D shape is output to the 3D printer. a fifth step of exporting the data; A shape output prepara- tor electrically connected to the 3D printer reads the output data, processes the output object into a plurality of molds based on a specific position, and then outputs the plurality of molds together A sixth step of producing output preparation data for forming a key and a key hole in each of the plurality of molds so as to be output; A seventh step of the 3D printer reading the output preparation data generated from the shape output prepara- tor and outputting the key and the plurality of molds in which the keyhole is formed; And at least one output marker formed on an outer surface of one of the plurality of molds output from the analyzer connected to the management server via a network in a 3D shape, And a digital work method using a digital work system for a special makeup utilizing a 3D printer and a photogallery.

According to the present invention having the above-described configuration, the following effects can be achieved.

First, since the present invention utilizes the 3D printer technology together with the photogrammetric technology utilizing the photographic information for which no actual data is provided, it is possible to apply photogrammetry using a mobile phone camera This will greatly enhance the possibilities and usability of the digital mode.

Particularly, the present invention is advantageous in that a single camera, for example, a DSLR camera, can be used as a camera, in contrast to the existing technology in which a plurality of cameras are required to control indoor artificial light that can be controlled in advance, Of course, you can get the desired results with your mobile camera.

In addition, the present invention is applicable to a person who is a special-purpose photographer, as well as a person who is a photographer, as well as a photographer, a photographer, a photographer, a photographer, By attaching a matte object with a known dimension to the object, for example a real marker in the form of a cube, it will be possible to have real information.

Accordingly, the present invention can store 3D data created as described above in a user terminal, a network server, or a cloud service by means of a three-dimensional modeling program, edit without any restriction on the place and time, It can be used as an embossed mold.

Outputs with these actual shapes in mold form would be very useful in the field of anaplastology to reconstruct body parts that have been lost due to disease, accident, or congenital disorder using artificial devices as well as special makeup.

In other words, according to the digital working system according to the present invention, if it is supported by continuous technological development, it is possible to have a great growth potential in the fourth industrial revolution era and help the creation of related job fields according to wide demand .

1 is a block diagram sequentially showing a digital working method using a digital working system for a special dress using a photogrammetry and a 3D printer according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram illustrating a data processing and a work system of a digital work system for a special makeup utilizing a photographic matrix and a 3D printer according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a program image that is modified from the mesh information generated by the digital work system for a special makeup using a photographic meth- od and a 3D printer according to an embodiment of the present invention in the form of output preparation data
FIG. 4 is a diagram illustrating an output preparation data image created by a digital working system for a special makeup utilizing a photograemetry and a 3D printer according to an embodiment of the present invention,
FIG. 5 is a photograph of photographing an output marker size of an output object produced by a digital working system for a special makeup utilizing a photogrammetry and a 3D printer according to an embodiment of the present invention
6 is a perspective view showing the overall structure of a photographing unit which is a main part of a digital working system for a special makeup utilizing a photographic matrix and a 3D printer according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments described below, but may be embodied in various other forms.

The present embodiments are provided so that the disclosure of the present invention is thoroughly disclosed and that those skilled in the art will fully understand the scope of the present invention.

And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

In addition, throughout the specification, like reference numerals refer to like elements, and the terms (mentioned) used herein are intended to illustrate the embodiments and not to limit the invention.

In this specification, the singular forms include plural forms unless the context clearly dictates otherwise, and the constituents and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other constituents and actions .

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram sequentially illustrating a digital working method using a digital working system for a special makeup utilizing a photogallery and a 3D printer according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram illustrating a data processing and a work system of a digital work system for a special makeup utilizing a photogallery and a 3D printer according to an embodiment of the present invention.

FIG. 3 is a program image showing a modification to the form of output preparation data from the mesh information generated by the digital working system for special dressing utilizing the photogrammetry and the 3D printer according to the embodiment of the present invention.

4 is a view showing an output preparation data image created by the digital working system for special dressing utilizing a photographic matrix and a 3D printer according to an embodiment of the present invention, It is a photograph.

5 is a photograph of photographing a size of an output marker 670 of an output object produced by a digital work system for a special makeup using a photographic matrix and a 3D printer according to an embodiment of the present invention .

FIG. 6 is a perspective view illustrating the overall structure of the photographing unit 100, which is a principal part of a digital working system for a special makeup utilizing a photographic matrix and a 3D printer according to an embodiment of the present invention.

First, as shown in FIG. 1 and FIG. 2, the present invention acquires data from a photographed image of a person to be photographed 400 in order to generate an output object for special distribution and output to the 3D printer 510, 620, 630, and 640 and the actual size of the object 400 to be imaged by the 3D printer 510, that is, a plurality of the molds 610, 620, 630, and 640.

First, the operator attaches the hood 410 to the person 400 to be photographed so as to cover the hair of the person 400 to be photographed, which is a subject for special dressing, so as to be able to photograph the upper body including the face, the head and the neck excluding the hair S1: the first step).

Thereafter, the worker has a rail 140 for forming a movement path having a radius of a predetermined size centered on the photographed person 400 which is stationary and reversibly rotatable at a predetermined position, And the camera 120 mounted on the gimbals 114 for restricting up / down and left / right rocking of the mobile body 110 is set (S2: second step).

Next, the operator stops the moving body 110 for each of a plurality of stop positions spaced at equal intervals on the rail 140, and rotates the camera 120 so that the photographed image of the subject 400 is overlapped with a certain portion (Step S3), or photographing the subject 400 at least once at each of a plurality of stop positions using the zoom-in and zoom-out functions of the camera 120 to generate a photographed image of the subject 400. [ .

Subsequently, the data acquirer 210 reads a plurality of photographed image information of the photographed person 400 and computes the photographed image information by using an arithmetic unit to match the point cloud generated by the output data generator 220 to generate polygons Thereby forming a mesh as a set (S4: fourth step).

Thereafter, when the processor 310 reads the mesh data, the data amount of the mesh is output to the 3D printer 510 in a manner that the number of triangles forming the polygon is reduced within a range such that the shape information is not distorted. (Step S5: step 5).

Next, the shape output preparing unit 512 electrically connected to the 3D printer 510 reads the output data and divides the output object into a plurality of molds 610, 620, 630, 640, 620, 630 and 640 so that the output molds 610, 620, 630 and 640 can be assembled with each other. (S6: step 6). In this case, as shown in FIG.

Next, the 3D printer 510 reads the output preparation data generated from the shape output preparation unit 512 and outputs a plurality of molds 610, 620, 630, and 640 having keys 650 and keyholes 660 (Step S7: step 7).

Thereafter, the analyzer 520 connected to the management server (not shown) and the network (not shown) is formed on the outer surface of one of the plurality of molds 610, 620, 630, A process of comparing the dimensions of at least one output marker 670 and at least one actual marker 420 mounted on the hood 410 is performed (S8: step 8).

It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention.

Hereinafter, a specific embodiment of the above-described digital working method according to the present invention will be described in more detail.

First, the digital work according to the present invention was approved by IRB on May 29, 2018 (Approval No. P01-201805-13-002) at the Bioethics Committee of the Public Health Agency designated by the Ministry of Health and Welfare of the Republic of Korea.

Since the direction of the digital work according to the present invention is not designed mainly on the appearance, age, sex and skin color of the photographer, the photographer is not selected, but there is a scar on the face, a serious condition of acne due to acne, Or atopic symptoms were excluded.

In addition, subjects who had tic disorder or similar behavior were excluded because the photographer should not move for about 30 minutes during the photo shoot.

Since the present invention was intended to determine the possibility of digital operation based on a general actor who needs special makeup, minors younger than 20 were excluded from the photographer.

For the reference, the camera 120 is a product of Canon in Korea (EOS 5Ds R BODY, EF24-70mm F2.8L IIUSM, Korea) and the tripod 113 is a product of Vanguardkorea (VEO 2 235CB, Korea) And dolly (111, dolly) was a product of ACE PHOTO (TMK tripod dolly DL-670, Korea).

The SLRPHOTO product (ET4040T 75W, Korea) was used for the illumination (hereinafter referred to as "MEASHI"), the SLRPHOTO (ET4040T, Korea), and a mobile phone camera (hereinafter referred to as "the camera") was Samsung Electronics' product (Galaxy S9 Plus 4032 × 3024, Korea).

A monitor (hereinafter referred to as "LC32F397F 32 type, Korea") of a monitor (hereinafter referred to as "LC32F397F 32", Korea), a tablet (hereinafter referred to as " (CTH-690, Korea) and 3D printer 510 (Former's farm product, LUGO_XL, Korea) were used.

The modeling software is Pixologic's product (ZBrush 4R8, United States America), the slicing software is Raise 3D's product (Ideamaker), the product of Catephant Reality (RealityCapture Promo, Slovakia) 3.1.7, United States America).

The data acquisition described above is the first to third steps S1 to S3 for acquiring information for constructing the three-dimensional shape of the study subject using the camera 120, that is, the digital camera and the mobile phone camera.

The person 400 to be photographed was seated on a rotating chair 170 provided under indoor direct lighting for 14 hours for a total of 8 days for three hours a day and photographed.

The camera 120 is fixed on the tripod 113 for stable photographing and the tripod 113 and the dolly 111 are connected to facilitate the movement of the camera 120. [

Around a circle of about 70 cm around the rotating chair 170 on the floor, 16 or 32 points were divided at the same intervals, and then the marks were shot at the corresponding points.

The photographing of the person 400 to be photographed is performed by rotating 360 degrees or 180 degrees so that the image of the person 400 to be photographed overlaps to a certain extent and the difference of the distances at one point is obtained by using the zoom- The image information was acquired in two ways: three consecutive shots (see the images in the left one-dot chain box in Fig. 2) or one shot at one point.

The photographer 400 hair was covered with a hood 410 having a large pattern and a clear color. In order to prevent the shadow of the face and neck from spreading, the upper body was dressed and photographed wearing a shoulderless gown.

The 3D modeling data generated by the photo-scanning program does not have absolute coordinate information, because the absolute coordinate values are not needed in the photographic material.

In order to obtain the actual measurement data, information to be able to measure the size must be input. Therefore, a cubic body (30 mm × 30 mm × 30 mm) and a rectangular parallelepiped (80 mm × 80 mm × 30 mm) Shaped actual markers 410 and 420 were attached and used as an index.

The photograph information is set after different setting of the type of the camera, the position of the illumination, the rotation range of the camera, the number of shooting points with respect to the turning radius, the number of shots, the change in shooting height (angle) .

The photographed image information is read through the data acquisition unit 210 and obtained a point cloud through the operator 230, specifically, RealityCapture Promo. The point cloud generated from the operator 230 is output to the output data generator 220 We observed the difference in the result of forming a mesh which is a set of polygons by matching.

And selects the data most suitable for outputting the results, and post-processes the data to the post-processor 310 of the post-processing unit 300, that is, ZBrush 4R8, and outputs the processed data to the 3D printer 510 to check the usability.

The present invention acquires a point cloud on the basis of photographed image information, processes it with a mesh, and observes the difference of the resultant values of the photographing conditions.

Based on the results of the comparative analysis, we have identified the optimal conditions for generating 3D modeling of body model for human head and face using photogrammetric method. In particular, And outputted to the printer 510, and confirmed the possibility of use.

The evaluation criteria and the evaluation method of all the digital works proceeded on the basis of the result produced after the digital work according to the present invention, namely a plurality of molds 610, 620, 530, 640.

Before looking at the fourth step (S4), a method of generating a mesh has been studied for a long time.

It has been studied mainly based on 2D and is being expanded to 3D.

The matching process is divided into initial matching using three common points and global matching by comparing all points by software and matching more precisely.

It can be seen that the number of point cloud generation is changed according to the resolution of the camera 120 to be photographed and the result of the point cloud matching process is represented by the difference of the count value of the triangle.

In addition to the resolution of the camera, the conditions that showed a remarkable difference in the mesh generation result when photographing were the result of the skin, lighting condition, and photographing method of the photographer 400.

The state of the skin surface was photographed by reflection of illumination when photographing the photograph of the photographer 400 without applying any skin, and the protruding portion which was illuminated by the illumination was not formed in the mesh, .

These defects do not provide accurate information on photographs and thus do not form a point cloud. In this case, a cross section or arbitrary intermediate data is generated and connected. As a result, the part where information is not obtained is damaged and disappears.

Since the expression of light and skin texture is an important relation in photographing, it can be understood that the shooting environment should be created in consideration of two situations.

The 3D meshing of the photogrammetric method creates the meshes by making the position information into the point cloud based on the photographic information. Like the laser scanner, the photographic information that expresses the result according to the reflection of the surface material affects the mesh formation And the surface reflectivity of human skin is found to have a negative influence on point cloud formation.

It has been confirmed that it is a good way to obtain a good mesh by changing the texture of the glazed or shiny skin to matte and not directly lighting the illumination.

When the rotation radius of the camera 120 is 360 °, the resultant difference of the mesh formation according to the skin texture can be confirmed.

However, in the case where the rotation radius of the camera 120 is 360, the photographing time is longer than that in the case where the rotation radius is 180, so that the photographee 400 is forced to move, The number of components generated by the number of components increases and the probability of obtaining accurate data becomes low.

If you want to apply a photogrammetric method to a living person, you know that the shooting time should be as short as possible.

Because the mesh produces different results depending on the position of the focus when taking a picture, you should shoot the picture in such a way that the computer knows exactly where the focus is.

Next, before examining the fifth step (S5) for post-processing, unlike the PolyWorks software of InnvMetric Software Inc., which specializes in scan data and reverse design, the Zebra-style program imports more than 1.5 GB of 3D data )Can not.

The triangle's count in the mesh data obtained in the present invention is converted to mesh with 24.3M (24258034), and then exported to the OBJ file. The size of the data is 1.77 GB.

To process post-processing through the Zibrisy program, the geometry information of the scan data should be exported with the amount of meshes properly reduced so that the shape information is not distorted. In order to reduce the amount of meshes, the triangle count should be reduced.

Even if the triangle count is reduced, since the density of the mesh is reduced to the same degree, the shape information is not largely distorted.

Since the flow of the front face, both sides, the neckline, and the head of the face of the photographer 400 is to be grasped as scan data, the part under the neck is deleted and a demo head (demo head) 620, 630, and 640 after life casting, that is, in the form of output preparation data as shown in FIG.

3 (a) to 3 (c) are data before modification, and FIGS. 3 (d) to 3 (f) are data after modification.

3 (a) and Fig. 3 (d) show frontal data, Figs. 3 (b) and 3 (e) show left side data, Respectively.

Next, since the unit of the object is generally proportional to the actual size before the sixth step (S6) to the eighth step (S8) for the post-output comparative analysis, , That is, one unit is set to 1 mm.

However, since the data in the present invention is not actually measured and input, it is necessary to separately set the size (mm) for the x, y, and z axes when converting into the STL file and exporting.

The y axis is arbitrarily set to 390 mm, 380 mm, and 350 mm in order to utilize the actual markers 420 attached to the hood 410 of the photographee 400. After converting the STL files into exported STL files, the 3D printer 510 And compared with the size of a real marker 420 having a shape of a cube having dimensions of length x width x height 30 mm.

Scale is increased or decreased at the same rate unless otherwise specified. Therefore, even if only one length of y axis among three axes is set, the same ratio is increased or decreased.

A portion where the output marker 670 is attached is cut out by a slicing program, and only the corresponding portion is output to measure whether it is the same as the size of the actual marker 420. The output of the STL file with the y axis set to 350 mm is shown in FIG. As shown in Fig.

4 (a) to 4 (e) show output preparation data created before outputting to the 3D printer 510, and FIGS. 4 (f) to 4 (j) A plurality of molds 610, 620, 630, and 640 as a result of being output to the molds 610, 620, 630, and 640, respectively.

In the present invention, the 3D scanned data is output using a low-cost, low-cost FDM-type 3D printer, and then the possibility of utilization is analyzed.

The output size of the FDM type 3D printer currently sold is generally less than 300 x 300 x 300 mm.

A build volume of 300 × 300 × 300mm or more is required to output a person's head, and in consideration of the accuracy in inverse proportion to the build volume and the quality of the output quality, It can be an economical burden for general workers.

In addition, although the time required to output the size of 300 × 300 × 300 mm depends on the G-code setting, it takes at least 72 hours. During the output, there is the problem of the bonding strength of the bed, the leveling problem, The output is likely to fail.

Accordingly, it is a common practice to reduce the time required for outputting a large-size output by dividing it into a plurality of molds 610, 620, 630, and 640. In this case, the key 650 and the keyhole 660) is required.

The output preparation data thus prepared is outputted to the 3D printer 510 to measure the size of the output marker 670 in the top part of the output object in a state in which the plurality of produced molds 610, 620, 630, and 640 are joined As a result, it is confirmed that the three output markers 670 are equal to the size of the actual marker 420 attached to the photographer 400 as the width, height, and height are respectively 30 mm. Respectively.

2 and 3, the digital working system for special dress using the photographic matrix and the 3D printer, which enables the digital working method according to the present invention as described above, A data acquisition unit 200, a post-processing unit 300, and an output comparison unit 500. [0064]

First, the photographing unit 100 performs photographing for acquiring a plurality of pieces of image information from the person 400 to be photographed as described above. The photographing unit 100 includes a moving body 110, a camera 120, a camera controller 130 ). ≪ / RTI >

Here, the moving body 110 is movable along a moving path having a predetermined radius around the subject 400 as a subject for special dressing, which is stationary at a predetermined position so as to be able to rotate forward and backward.

At this time, the camera 120 is provided as a single unit mounted on the moving body 110 so that the face, head, and neck of the subject 400 can be photographed at a plurality of stop positions set at regular intervals on the movement path.

The camera controller 130 also controls the camera 120 to rotate the camera 120 so that the photographed image of the person 400 to be photographed overlaps at a plurality of stop positions to photograph the photographer 400 or zoom in and zoom out of the camera 120 Function is used to control the camera 120 to photograph the subject 400 at least one time at each of a plurality of stop positions.

On the other hand, the data acquisition unit 200 reads the image pickup information of the plurality of to-be-photographed persons 400 photographed at least one time at each of the plurality of stop positions by the image pickup unit 100 to generate a point cloud, The generated point clouds are matched to form a mesh, which is a set of polygons.

In addition, the post-processing unit 300 converts the data capacity of the mesh formed by the data acquisition unit 200 into a polygon within a range that the shape information is not distorted when the 3D printer 510 outputs the 3D shape And to export the data in the form of output data for which the number of triangles is reduced.

On the other hand, the output comparison unit 500 reads the output data, processes the output object in a form of a plurality of molds 610, 620, 630, 640, and mold based on a specific position, A 3D printer (650) for forming a key (650, key) and a key hole (660) in each of a plurality of molds (610, 620, 630, 640) 510).

The output comparison unit 500 also includes at least one output marker 670 formed on the outer surface of one of the output molds 610, 620, 630 and 640, And an analyzer 520 for comparing the dimensions of at least one actual marker 420 mounted on the hood 410 which is covered to cover the hair of the photographer 400. [

At this time, it is preferable that the actual markers 420 are made of a matte material so as to prevent distortion of image and image information due to illumination and reflector.

6, the photographing unit 100 may further include a rotating chair 170 provided to allow the subject 400 to stand and sit at a predetermined position so as to be able to rotate forward and backward can do.

The photographing unit 100 may further include a rail 140 that forms a movement path having a predetermined radius around the rotary chair 170.

The photographing unit 100 constitutes the moving body 110 and may further include a dolly 111 to which a plurality of directional casters 112 moving along the rails 140 are mounted.

The photographing unit 100 constitutes the moving body 110 and may further include a tripod 113 detachably coupled to the upper side of the dolly 111 and capable of adjusting the height and the inclination angle.

The photographing unit 100 constitutes the moving body 110. The photographing unit 100 is coupled to the upper end of the tripod 113 so that the camera 120 can be detached and attached to manually or automatically remotely operate the photographing shutter button of the camera 120 A camera controller 130 for controlling zooming in and zooming out or PAN and tilting can be further provided and the gimbals 114 for suppressing up, down, left, and right rocking can be further provided.

Further, the photographing unit 100 is arranged on the plurality of reinforcing ribs 141 radially disposed at regular intervals along the rail 140 to define a plurality of stop positions, and the dolly 111 is moved And position determining means (150) for stopping the dolly (111) and guiding the photographing of the camera (120) according to the operation of the camera controller (130) whenever the camera (130) is positioned at each of the plurality of stop positions.

The photographing unit 100 connects the lower end of the rotating chair 170 and the dolly 111 and receives the driving force separately from the forward and reverse rotations of the rotating chair 170, And a drive transmission system 160 for moving the dolly 111 along the rail 140 and stopping it.

The positioning means 150 includes a positioning switch 151 mounted on a plurality of reinforcing ribs 141 provided on the rails 140 at a plurality of stop positions and generating an action force in a direction of projecting obliquely ).

At this time, the positioning switch 151 is brought into contact with the contactor 163 at the end of the rotor arm 162 of the drive transmission system 160, which rotates, so that the signal for temporarily stopping the operation of the step motor 161 of the drive transmission system 160 To the step motor 161 side.

On the other hand, the drive transmission system 160 may include a step motor 161 having a drive shaft 161s that rotates and stops clockwise or counterclockwise by a predetermined angle.

The drive transmission system 160 includes a rotor 162r coupled to the drive shaft 161s and extends toward the dolly 111 and is disposed at the lower end of the rotary chair 170 to rotate the rotary chair 170, And a rotor arm 162 that receives the driving force from the step motor 161 separately from the reverse rotation and rotates in conjunction with the driving shaft 161s.

The drive transmission system 160 may include a contact 163 provided at the end of the rotor arm 162 and connected to the dolly 111 and in contact with the positioning means 150.

On the other hand, the data acquisition unit 200 may include a data acquisition unit 210 that reads a plurality of pieces of captured image information of the to-be-

The data acquisition unit 200 may include an operation unit 230 that generates a point cloud by calculating a plurality of pieces of captured image information read by the data acquisition unit 210.

The data acquisition unit 200 may also include an output data generator 220 for matching a point cloud generated from the calculator 230 to form a mesh that is a set of polygons .

On the other hand, the post-processing unit 300 converts the data capacity of the read mesh into the output capacity of the 3D printer 510, which reduces the number of triangles forming the polygon within a range such that the shape information is not distorted when the 3D printer 510 outputs the 3D shape. Processor 310 for exporting data in the form of data.

The output comparison unit 500 may further include a shape output preparation unit 512 electrically connected to the 3D printer 510 to produce output preparation data.

The shape output preparing unit 512 reads the output data output from the post-processor 310 and processes the output object in a form of a plurality of molds 610, 620, 630, 640, mold based on a specific position.

The shape output preparation unit 512 outputs a key 650 and a key to each of the plurality of molds 610, 620, 630, and 640 so that the output molds 610, 620, 630, So that output preparation data for forming and outputting a hole 660 (key hole) is produced.

As described above, according to the present invention, a 3D modeling data can be generated by using a photogrammetric method as well as a technology development of a special makeup field by fusing a photogrammetry and a 3D printing technology, To provide a digital work system for a special makeup using a photogrammetric and 3D printer and a digital work method using it, which can greatly improve the efficiency of the digital work of a special makeup by outputting .

It will be apparent to those skilled in the art that many other modifications and applications are possible within the scope of the basic technical idea of the present invention.

100 ... shooting unit
110 ... mobile
111 ... Dolly
112 ... directional castor
113 ... Tripod
114 ... gimbal
120 ... camera
130 ... camera controller
140 ... rail
141 ... reinforced rib
150 ... positioning means
151 ... Positioning switch
160 ... drive transmission system
161 ... Step motor
161s ... drive shaft
162 ... rotor arm
162r ... rotor
163 ... contactor
170 ... rotating chair
200 ... data acquisition unit
210 ... data acquisition device
220 ... output data generator
230 ... operator
300 ... post-processing unit
310 ... Post-processor
400 ... photographer
410 ... hood
420 ... actual markers
500 ... output comparison unit
510 ... 3D Printer
512 ... shape output prepara
520 ... Analyzer
610, 620, 630, 640 ... plural molds
650 ... key
660 ... key hole
670 ... output marker
S1 ... Step 1
S2 ... Step 2
S3 ... Step 3
S4 ... Step 4
S5 ... Step 5
S6 ... Step 6
S7 ... Step 7
S8 ... Step 8

Claims (2)

A moving object movable along a movement path having a radius of a predetermined size centered on a subject to be photographed which is a subject for special dressing which is stationary at a predetermined position in a forward and reverse directions, A single camera mounted on the moving body so as to be capable of photographing the face, head and neck of the person to be photographed; and a controller that rotates the camera so that the photographed image of the person to be photographed overlaps a certain portion at each of the plurality of stop positions, And a camera controller for controlling the camera to photograph the subject to be photographed at least once at each of the plurality of stop positions using a zoom-in and zoom-out function of the camera.
The point cloud is generated by calculating and reading imaging image information of a plurality of the to-be-photographed persons photographed at least once at each of the plurality of stop positions by the photographing unit, and the generated point cloud is matched (matched) a data acquisition unit forming a mesh which is a set of polygons;
The data capacity of the mesh formed by the data acquisition unit is exported in the form of output data in which the number of triangles constituting the polygon is reduced within a range that the shape information is not distorted when the 3D shape is outputted by the 3D printer a post-processing unit for exporting the data; And
Processing the output data by dividing the output object into a plurality of molds based on a specific position, and then outputting the plurality of molds to a plurality of molds, A 3D printer for forming and outputting a key hole, at least one output marker formed on an outer surface of one of the plurality of the molds outputted, and a control unit for concealing the hair of the person to be photographed before photographing by the photographing unit And an analyzer for comparing the dimensions of the at least one actual marker with the at least one actual marker mounted on the overlayed hood.
A first step of attaching a hood covering the hair of a person to be photographed, which is a subject for special makeup, so as to be able to take an image of the upper body including the face, head and neck excluding the hair;
A rail which forms a movement path having a radius of a predetermined size centered on the person to be photographed which is stationary and reversibly rotatable at a predetermined position, and a movable member which is movable on the rail, A second step of setting a camera mounted on the gimbal to be restrained;
The moving object may be stopped for each of a plurality of stop positions spaced equidistantly on the rail, and then the camera may be rotated so that the photographed image of the to-be-photographed person overlaps a certain portion, or the zoom- A third step of photographing the subject to be photographed at least once at each position to generate a photographed image of the subject to be photographed;
A fourth step of the data acquiring unit reading the plurality of photographed image information of the photographee and computing the point clouds generated by the arithmetic operation unit by the output data generator to form a mesh which is a set of polygons; ;
When the processor reads the mesh, the processor exports the data capacity of the mesh in the form of output data in which the number of triangles constituting the polygon is reduced to such a degree that the shape information is not distorted when the 3D shape is output to the 3D printer. a fifth step of exporting the data;
A shape output prepara- tor electrically connected to the 3D printer reads the output data, processes the output object into a plurality of molds based on a specific position, and then outputs the plurality of molds together A sixth step of producing output preparation data for forming a key and a key hole in each of the plurality of molds so as to be output;
A seventh step of the 3D printer reading the output preparation data generated from the shape output prepara- tor and outputting the key and the plurality of molds in which the keyhole is formed; And
An eighth step of comparing dimensions of at least one output marker formed on an outer surface of one of the plurality of molds output from the analyzer connected to the management server in a 3D form and at least one actual marker mounted on the hood, A digital working method using a digital working system for a special makeup utilizing a photogrammetry and a 3D printer.

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