KR101943452B1 - Three Dimensional Dental Model Scanner With Moving Camera And Method For Controlling The Scanner - Google Patents

Abstract

Disclosed is a three-dimensional dental model scanner with a moving camera. The three-dimensional dental model scanner enhances scanning efficiency by controlling movement of the camera without using a tooth model fixing jig. To this end, the three-dimensional dental model scanner comprises at least one drive shaft and at least one guide so as to control the camera. In addition, the three-dimensional dental model scanner controls at least one drive shaft and at least one guide such that the camera acquires an omnidirectional image on the tooth model.

Description

TECHNICAL FIELD [0001] The present invention relates to a three-dimensional dental model scanner for moving a camera, and a method for controlling the scanner.

The present invention relates to a three-dimensional dental scanner and a scanner control method, and more particularly, to a three-dimensional dental scanner and a scanner control method that do not use a jig for fixing a tooth model.

Techniques that constitute the background of the present invention are disclosed in the following documents.
- Publication No. KR2005-0122303A (2005-12-29), " Driving Apparatus for Three-dimensional Scanning System and Three-Dimensional Scanning System for Modeling Dental Computer Using the Same &
A scanner is a device that scans an object by rotating or moving the object. In particular, a scanner used in dentistry can scan a user's tooth model to make a prosthesis.

A conventional three-dimensional dental scanner has a structure in which a camera is fixed and an entire region excluding a bottom surface of a tooth model is photographed to obtain three-dimensional data while moving the tooth model. Some scanners also shoot with moving camera, but these scanners also require movement of the tooth model. Accordingly, the three-dimensional scanners include a fixing device such as a fixing jig for fixing the tooth model stably during the scanning process.

When a fixing device such as a fixing jig is used, the working time of the user may be slow due to the time required to fix the tooth model. In addition, the scan quality may be deteriorated due to an incorrect fixation, and there is a problem that the tooth model needs to be re-taken when detached from the fixing jig.

Thus, in the three-dimensional scanning process for the tooth model, it is necessary to consider the problems caused by the need to fix the tooth model.

The present invention provides an apparatus and a method for shortening the tooth model fixing time by scanning the 3D tooth model scanner in such a manner that the movement of the camera is controlled without moving the tooth model.

The present invention provides an apparatus and method for improving the efficiency of a 3D scanning operation by scanning a tooth model in a 3D tooth model scanner in a manner that controls movement of a camera without moving the tooth model.

The present invention provides an apparatus and method for improving the accuracy of scanning by scanning a tooth model in a 3D tooth model scanner without moving the tooth model and controlling the movement of the camera.

A three-dimensional dental model scanner according to an embodiment of the present invention includes at least one drive shaft rotating in a specific direction; At least one guide connected to the at least one drive shaft; And a camera whose movement is controlled by the at least one drive shaft and the at least one guide, wherein the three-dimensional dental model scanner comprises: at least one drive shaft and at least one guide, And the camera can acquire an image of the object at the adjusted photographing position.

Wherein the camera is connected to a drive shaft of one of the at least one drive shaft and the photographing position is located on a virtual hemisphere centered on the object.

A three-dimensional dental model scanner according to an embodiment of the present invention adjusts a photographing position of the camera with respect to an object to be scanned using the at least one driving shaft and the at least one guide, The photographing direction of the camera can be adjusted so as to look at the center of the object using the drive shaft.

Wherein the at least one guide includes at least one length-adjustable guide, the photographing position including a photographing angle which is an angle of the camera with respect to the object and a distance of the camera with respect to the object .

The three-dimensional dental model scanner according to an embodiment of the present invention adjusts the photographing angle using the at least one drive shaft, and maintains the photographing distance at a constant level using a guide whose length is adjusted. have.

Wherein the at least one drive shaft includes a drive shaft that moves along the x and y axes on a horizontal plane of the three-dimensional dental model scanner, the at least one guide may include at least one length adjustable guide have.

The three-dimensional dental model scanner according to an embodiment of the present invention adjusts the x-coordinate and the y-coordinate of the photographing position using a driving axis moving along the x-axis and the y-axis, The z coordinate of the photographing position can be adjusted using a guide.

A three-dimensional dental model scanner according to an embodiment of the present invention includes a hemispherical cover centered on a portion on which an object to be scanned is positioned and corresponding to an area in which the object can be captured in all directions; And a camera connected to the cover, the movement of which is controlled along the cover, wherein the three-dimensional dental model scanner adjusts a photographing position of the camera with respect to the object in all directions along the cover, The camera may obtain an image of the object at the adjusted photographing position.

Wherein the cover includes a magnetic body whose movement is controlled along the cover and which has a polarity opposite to that of the camera so as to attract the camera, and the three-dimensional dental model scanner controls movement of the magnetic body to follow the cover And the movement of the camera can be controlled.

The three-dimensional dental model scanner according to an embodiment of the present invention can adjust the photographing position of the camera with respect to the object in all directions along the cover using the magnetic body.

Wherein the cover comprises a semicircular rail centered on a portion on which the object is to be placed and is rotated in a direction parallel to the horizontal plane on which the object is placed and the camera is connected to the semicircular rail, Lt; / RTI >

A three-dimensional dental model scanner according to an embodiment of the present invention adjusts the angle of a vertical plane of the camera with respect to the object using the semicylindrical rails and adjusts the angle of the vertical plane on the horizontal plane The angle can be adjusted.

A three-dimensional dental model scanner according to an embodiment of the present invention includes: a semicircular rail having a center on which a target object to be scanned is to be placed and rotating in a direction parallel to a horizontal plane on which the object is placed; And a camera connected to the semicircular rail and controlled to move along the semicircular rail, wherein the three-dimensional dental model scanner rotates the semicircular rail and controls movement of the camera along the semicircular rail, Adjusts the shooting position of the camera with respect to the object in all directions, and the camera can acquire an image of the object at the adjusted shooting position.

A method of controlling a three-dimensional dental model scanner according to an embodiment of the present invention includes: setting a virtual hemisphere corresponding to an area in which an image can be obtained in all directions with respect to an object to be canned; Setting a plurality of photographing positions on which the camera is to be positioned on the set virtual hemisphere; And controlling the movement of the camera in accordance with the set plurality of photographing positions and acquiring an image of the object at the plurality of photographing positions using the camera.

According to an embodiment of the present invention, the tooth model fixing time can be shortened by scanning the 3D tooth model scanner in such a manner that the movement of the camera is controlled without moving the tooth model.

According to an embodiment of the present invention, the 3D tooth model scanner can improve the efficiency of the 3D scanning operation by scanning the tooth model in a manner that controls the movement of the camera without moving the tooth model.

According to an embodiment of the present invention, the accuracy of scanning can be improved by scanning the tooth model in the 3D tooth model scanner without moving the tooth model and controlling the movement of the camera.

1 is a view showing a three-dimensional dental model scanner according to an embodiment of the present invention.
2 is a view showing an example of the configuration of a three-dimensional dental model scanner according to an embodiment of the present invention.
FIG. 3 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating the operation of the example of FIG. 3, which implements a three-dimensional dental model scanner according to an embodiment of the present invention.
FIG. 5 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating the operation of the example of FIG. 5, which implements a three-dimensional dental model scanner according to an embodiment of the present invention.
FIG. 7 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.
FIG. 8 is a diagram showing an example of the configuration of a three-dimensional dental model scanner according to an embodiment of the present invention.
FIG. 9 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.
10 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.
11 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a three-dimensional dental model scanner according to an embodiment of the present invention.

Referring to FIG. 1, a three-dimensional dental model scanner 101 and a tooth model 102 are shown. Here, the three-dimensional dental model scanner 101 is a scanner used for dentistry. The three-dimensional dental model scanner 101 acquires three-dimensional data of the object by acquiring an image in all directions with respect to the object to be scanned. For example, the object to be scanned by the three-dimensional dental model scanner 101 may be the tooth model 102.

The tooth model 102 refers to an object to be scanned by the three-dimensional dental model scanner 101. The tooth model 102 refers to a tooth model corresponding to the maxilla and mandible of a person. The tooth model 102 may be made of a material such as gypsum. However, this is merely an example, and the tooth model 102 may include all objects produced in association with animals or human teeth, and the material of the tooth model 102 is also not limited.

The three-dimensional dental model scanner 101 according to an embodiment of the present invention can acquire an image of the tooth model 102 by controlling the movement of the camera without moving the tooth model 102. That is, the three-dimensional dental model scanner 101 according to an embodiment of the present invention can stably obtain the image of the tooth model 102 even when there is no apparatus such as a fixing jig for fixing the tooth model 102 .

Although the shape of the three-dimensional dental model scanner 101 shown in Fig. 1 is a cube composed of dotted lines, this is only an example and the scope of the present invention is not limited thereto. The shape of the three-dimensional dental model scanner 101 may be implemented in any form as long as it corresponds to the structure, function, operation, and the like described herein.

A three-dimensional dental model scanner 101 according to an embodiment of the present invention may include a processor. A processor may be a central processing unit (CPU) or a semiconductor device that performs processing on instructions stored in memory and / or storage. Memory and storage may include volatile or nonvolatile storage media of various types. For example, the memory may include a read only memory (ROM) and a random access memory (RAM). The processor of the three-dimensional dental model scanner 101 may control the three-dimensional dental model scanner 101 according to an embodiment of the present invention. The operations of the three-dimensional dental model scanner 101 described below may be those performed by the processor of the three-dimensional dental model scanner 101.

The three-dimensional dental model scanner 101 according to an embodiment of the present invention can control the photographing position of the camera around the tooth model 102. Here, the photographing position is a position at which the camera acquires an image for the tooth model 102. For example, the photographing position can also be expressed by x-axis, y-axis, and z-axis coordinates with reference to the tooth model 102. [

The three-dimensional dental model scanner 101 can control the movement of the camera to keep the distance between the tooth model 102 and the camera constant. The three-dimensional dental model scanner 101 controls the movement of the camera to adjust the photographing position of the camera with respect to the tooth model 102. The photographing position of the camera may correspond to an area in which the tooth model 102 can be photographed in all directions. For example, the imaging location may be set along a hemispherical area centered on the tooth model 102. Here, the hemispherical region may have a constant distance to the tooth model 102.

The three-dimensional dental model scanner 101 according to an embodiment of the present invention can acquire a plurality of images for the tooth model 102 in all directions. Here, the number of images to be acquired can be determined by the three-dimensional dental model scanner 101. For example, the three-dimensional dental model scanner 101 can determine the number of images to be acquired according to the precision to be scanned.

According to one embodiment of the present invention, a three-dimensional dental model scanner 101 includes at least one drive shaft rotating in a specific direction, at least one guide connected to at least one drive shaft, and at least one drive shaft and at least one guide And a motion-controlled camera. The three-dimensional dental model scanner 101 adjusts the photographing position of the camera using a driving shaft and a guide, and the camera can acquire an image of an object to be photographed. A detailed description of such a three-dimensional dental model scanner 101 will be described with reference to Figs. 2 to 7.

According to one embodiment of the present invention, the three-dimensional dental model scanner 101 includes a hemispherical cup corresponding to an area in which an object to be scanned can be photographed in all directions, and a camera whose movement is controlled along a cover . Then, the three-dimensional dental model scanner 101 adjusts the photographing position of the camera along the cover, and the camera can obtain an image of the object at the adjusted photographing position. A detailed description of the three-dimensional dental model scanner 101 will be described with reference to FIGS. 8 to 10. FIG.

According to an embodiment of the present invention, the three-dimensional dental model scanner 101 may include a semi-circular rail centered on an object to be scanned and a camera connected to the semi-circular rail and controlled to move along a semicircular rail . The three-dimensional dental model scanner 101 controls the movement of the semicircular rail and the movement of the camera to adjust the shooting position of the camera, and the camera can acquire an image of the object at the adjusted shooting position. A detailed description of the three-dimensional dental model scanner 101 will be described with reference to FIG.

2 is a view showing an example of the configuration of a three-dimensional dental model scanner according to an embodiment of the present invention.

2, the three-dimensional dental model scanner 101 may include a drive shaft 201, a guide 202, and a camera 203. Here, the drive shaft 201 means an axis that rotates in a specific direction in an apparatus such as the three-dimensional dental model scanner 101. For example, the drive shaft 201 can rotate the components connected to the drive shaft 201 in clockwise and counterclockwise directions with respect to the drive shaft 201.

The guide 202 is a component connected to at least one drive shaft 201. The guide 202 according to one embodiment of the present invention can rotate in the same direction as the drive shaft 201 as the drive shaft 201 rotates. The guide 202 according to one embodiment of the present invention may be implemented in a linear manner. Alternatively, the guide 202 according to one embodiment of the present invention may be implemented as a cylindrical or rectangular parallelepiped. Further, a part of the guide 202 according to an embodiment of the present invention can be adjusted in length.

The camera 203 is a part for acquiring an image of an object to be scanned in the three-dimensional dental model scanner 101. The camera 203 can be controlled in motion by at least one drive shaft 201. [ For example, the camera 203 may be connected to the drive shaft 201 and rotate in accordance with the rotation direction of the drive shaft 201.

Then, the camera 203 can be controlled in motion by at least one guide 202. [ For example, the camera 203 is connected to the guide 202, and the position of the object to be scanned may change according to the movement of the guide 202. Alternatively, the camera 203 may be configured as a part of the guide 202. In other words, the camera 203 may be in a form integrated with the guide 202.

The camera 203 can be controlled in motion by at least one drive shaft 201 and at least one guide 202. [ When a plurality of driving shafts 201 and a plurality of guides 202 are provided in the three-dimensional dental model scanner 101, the driving shaft 201 and the plurality of guides 202 are directly connected to the driving shaft 201 or the camera 203, The movement of the camera 203 can be controlled in accordance with the movement of the guide 202.

The three-dimensional dental model scanner 101 according to an embodiment of the present invention is configured to scan the photographing position of the camera 203 with respect to an object to be scanned using at least one drive shaft 201 and at least one guide 202 Can be adjusted. That is, the three-dimensional dental model scanner 101 rotates at least one drive shaft 201 to control the movement of the guide 202 connected thereto. Accordingly, the movement of the camera 203 connected to at least one of the drive shaft 201 and the guide 202 can be controlled.

The three-dimensional dental model scanner 101 can determine a hemispherical area around the tooth model 102, which is an object to be scanned. Here, the hemispherical region corresponds to an area where the tooth model 102 can be photographed in all directions.

Then, the three-dimensional dental model scanner 101 can determine the coordinates of the photographing position at which the camera is to be positioned in the hemispherical area. The three-dimensional dental model scanner 101 can control the movement of at least one drive shaft 201 and at least one guide 202 so that the camera 203 is located at the determined coordinates.

Then, the photographing position of the camera 203 can be adjusted so that the photographing position of the camera 203 with respect to the tooth model 102 is located at the determined coordinates. The camera 203 can acquire an image for the tooth model 102 at the photographing position. As a result, the three-dimensional dental model scanner 101 can generate three-dimensional data for the tooth model 102 using a plurality of images acquired by the camera 203 at the adjusted photographing positions.

In summary, as shown in FIG. 2, the three-dimensional dental model scanner 101 may include at least one drive shaft 201 that rotates in a specific direction. The three-dimensional dental model scanner 101 may include at least one guide 202 connected to at least one drive shaft 201. The three-dimensional dental model scanner 101 may include at least one drive shaft 201 and a camera 203 whose movement is controlled by at least one guide 202.

The three-dimensional dental model scanner 101 adjusts the photographing position of the camera 203 with respect to an object to be scanned, such as the tooth model 102, using at least one drive shaft 201 and at least one guide 202 . Then, the camera 203 can acquire an image of the object at the adjusted photographing position. In other words, the three-dimensional dental model scanner 101 can use the camera 203 to acquire a plurality of images for the object at the adjusted photographing position.

The present specification aims to provide a clear understanding by providing three examples of implementing the three-dimensional dental model scanner 101 shown in Fig. This is merely an example for the sake of understanding, and the scope of the present invention is not limited to the three examples described below.

In the first example illustrated in FIGS. 3 and 4, in the three-dimensional dental model scanner 101 of FIG. 2, the camera may be connected to one drive shaft of at least one drive shaft. The photographing position may be located on a hypothetical hemisphere centered on the tooth model 102. The three-dimensional dental model scanner 101 adjusts the photographing position of the camera 203 with respect to the tooth model 102 using at least one driving shaft and at least one guide, The photographing direction of the camera 203 can be adjusted so that the camera 203 looks at the center of the tooth model 102 using the drive shaft. The first example will be described in detail below with reference to FIG. 3 and FIG.

In the second example illustrated in FIGS. 5 and 6, the at least one guide 202 of the three-dimensional dental model scanner 101 of FIG. 2 may include at least one length-adjustable guide 202 have. The photographing position may include a photographing angle which is an angle of the camera 203 with respect to the tooth model 102 and a photographing distance which is a distance of the camera 203 with respect to the tooth model 102. Then, the three-dimensional dental model scanner 101 can adjust the photographing angle using at least one driving shaft 201. In addition, the three-dimensional dental model scanner 101 can maintain a constant imaging distance using at least one guide 202 whose length is adjusted. The second example will be described in detail below with reference to FIG. 5 and FIG.

At least one drive shaft 201 of the three-dimensional dental model scanner 101 of FIG. 2 is moved along the x and y axes on the horizontal plane of the three-dimensional dental model scanner 101, As shown in FIG. And, the guide 202 may include at least one length-adjustable guide 202. Then, the three-dimensional dental model scanner 101 adjusts the x-coordinate and the y-coordinate of the photographing position using the drive shaft 201 moving along the x-axis and the y-axis, and guides at least one length 202 ) Can be used to adjust the z-coordinate of the photographing position. The third example will be described in detail below with reference to FIG.

FIG. 3 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.

Referring to FIG. 3, a first drive shaft 301, a second drive shaft 302, a third drive shaft 303, and a fourth drive shaft 304 are shown. Each of the drive shafts 301 to 304 can independently rotate in the direction of rotation. The three-dimensional dental model scanner 101 can control the rotational directions of the respective drive shafts 301 to 304. In Fig. 3, the first drive shaft 301 is located in a plane facing the tooth model 102, but this is only an example, and the positions of the components shown in Fig. 3 may be different from those shown in Fig. That is, the scope of the present invention is not limited thereto.

3, the first rotation direction 309, the second rotation direction 310, the third rotation direction 311, and the fourth rotation direction 312 are shown. The respective rotation directions 309 to 312 indicate the directions in which the respective drive shafts 301 to 304 rotate. Some of the rotational directions 309 to 312 may be parallel to each other, and some may be perpendicular to each other. For example, when the first drive shaft 301 and the second drive shaft 302 are perpendicular to each other, the first rotation direction 309 and the second rotation direction 310 are perpendicular to each other. In addition, the rotational directions 310 to 312 of the driving shafts 302 to 304 parallel to each other may be parallel to each other.

3, a first guide 305, a second guide 306, a third guide 307, and a camera 308 are shown.

The first guide 305 may be connected to the first drive shaft 301 and the second drive shaft 302. The first guide 305 can rotate in the same rotation direction 309 as the first drive shaft 301 rotates. However, the first guide 305 may not be affected by the rotation of the second drive shaft 302.

The second guide 306 may be connected to the second drive shaft 302 and the third drive shaft 303. The second guide 306 may rotate in the same rotational direction 310 or 311 as the second drive shaft 302 or the drive shaft 302 or 303 that rotates as the third drive shaft 303 rotates.

The third guide 307 may be connected to the third driving shaft 303 and the fourth driving shaft 304. The third guide 307 may rotate in the same rotational direction 311 or 312 as the third drive shaft 303 or the fourth drive shaft 304 rotates as the drive shaft 302 or 303 rotates.

The three-dimensional dental model scanner 101 can adjust the photographing position of the camera 308 in order to obtain an image of the tooth model 102 in all directions. That is, the three-dimensional dental model scanner 101 can adjust the photographing position of the camera 308 using the drive shafts 301 to 304 and the guides 305 to 307. For example, the three-dimensional dental model scanner 101 may be configured so that the camera 308 moves on the imaginary hemisphere corresponding to the area in which the image for the tooth model 102 is obtained in all directions, 304 and the guides 305 to 307, respectively.

 Specifically, the three-dimensional dental model scanner 101 controls the movement of the specific driving axes 302 to 303 and the specific guides 306 to 307 so that the distance of the camera 308 to the tooth model 102 is constant .

The three-dimensional dental model scanner 101 can adjust the photographing direction of the camera 308 using the fourth drive shaft 304. [ Specifically, the three-dimensional dental model scanner 101 can adjust the photographing direction of the camera 308 so that the camera 308 looks at the center of the tooth model 102 during the scanning process using the fourth drive shaft 304 have.

FIG. 4 is a diagram illustrating the operation of the example of FIG. 3, which implements a three-dimensional dental model scanner according to an embodiment of the present invention.

4, side views 410 to 430, perspective views 440 to 460, and a virtual semicircle 401 are shown for the operation of the example of FIG. 4, the three-dimensional dental model scanner 101 shown in FIG. 4 is the same as the three-dimensional dental model scanner 101 shown in FIG. 3, (101).

Referring to the side views 410 to 430, the three-dimensional dental model scanner 101 rotates the remaining drive shafts 302 to 304 while the first drive shaft 301 and the first guide 305 are fixed, 305 to 307 to adjust the photographing position of the camera 308. The three-dimensional dental model scanner 101 can control the movement of the camera 308 such that the distance of the camera 308 to the tooth model 102 is constant.

Here, the virtual semicircle 401 may correspond to an area for acquiring an image for the tooth model 102 in the moving path of the camera 308 or in all directions. All positions on the imaginary semicircle (401) are the same for the tooth model (102). Accordingly, the three-dimensional dental model scanner 101 allows the camera 308 to move along the virtual semicircle 401, thereby keeping the distance of the camera with respect to the tooth model 102 constant.

Referring to the perspective views 440 to 460, the three-dimensional dental model scanner 101 can adjust the photographing position of the camera 308 using the drive shafts 301 to 304 and the guides 305 to 308 .

For example, the photographing position may include a photographing angle, which is an angle of the camera 308 with respect to the tooth model 102, and a photographing distance, which is a distance of the camera with respect to the tooth model 102. That is, the three-dimensional dental model scanner 101 can determine an imaging angle and a plurality of imaging distances corresponding to a plurality of imaging positions. The three-dimensional dental model scanner 101 detects the movement of the drive shafts 301 to 304 and the guides 305 to 308 so that the camera 308 is positioned at a position corresponding to a plurality of photographing angles and a plurality of photographing distances Can be controlled.

As another example, the shooting position can be expressed in the form of coordinates such as x-coordinate, y-coordinate, z-coordinate. That is, the three-dimensional dental model scanner 101 can determine coordinates for a plurality of photographing positions. The three-dimensional dental model scanner 101 can control the movement of the drive shafts 301 to 304 and the guides 305 to 308 so that the camera 308 is positioned on a position corresponding to a plurality of coordinates .

Specifically, the three-dimensional dental model scanner 101 can set the position of the camera 308 centered on the tooth model as the three-dimensional coordinate values of x, y, and z. At this time, the three-dimensional dental model scanner 101 can set the scale of the coordinate value. For example, the three-dimensional dental model scanner 101 may set the coordinate value to the first decimal place.

The three-dimensional dental model scanner 101 can set the rotation values of the drive shafts 301 to 304 based on the position of the camera 308. Therefore, the three-dimensional dental model scanner 101 can control the movement of the camera 308 by rotating the drive shafts 301 to 304. For example, when the position of the camera 308 is (0, 0, 200), the three-dimensional dental model scanner 101 rotates the first drive shaft 301 by 0 degree, the second drive shaft 302 by 0 degree, The third drive shaft 303 can be set to 45 degrees, and the fourth drive shaft 304 can be set to 90 degrees.

Accordingly, the three-dimensional dental model scanner 101 can convert the points on the virtual semicircle 401 into three-dimensional coordinate values. Then, the three-dimensional dental model scanner 101 can set the movement trajectory of the camera 308 using this coordinate value. At this time, a decimal point error or the like may occur at the position of the camera 308, but this can be corrected by software.

FIG. 5 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.

Referring to FIG. 5, a first drive shaft 501, a second drive shaft 502, and a third drive shaft 503 are shown. Each of the drive shafts 501 to 503 can independently rotate in the rotational direction. The three-dimensional dental model scanner 101 can control the rotational directions of the respective driving shafts 501 to 503. In Fig. 5, the first drive shaft 501 is located in a plane facing the tooth model 102, but this is only an example, and the positions of the components shown in Fig. 5 may be different from those shown in Fig. That is, the scope of the present invention is not limited thereto.

5, a first rotation direction 507, a second rotation direction 508, a third rotation direction 509, and a length adjustment direction 510 are shown. The respective rotation directions 507 to 509 indicate the directions in which the respective drive shafts 501 to 503 rotate. Some of the rotational directions 507 to 509 may be parallel to each other, and some may be perpendicular to each other. For example, when the first drive shaft 501 and the second drive shaft 502 are perpendicular to each other, the first rotation direction 507 and the second rotation direction 508 are perpendicular to each other. In addition, the rotational directions 508 to 509 of the driving shafts 502 to 503, which are parallel to each other, may be parallel to each other.

5, a first guide 504, a second guide 505, and a camera 506 are shown.

The first guide 504 may be connected to the first drive shaft 501 and the second drive shaft 502. The first guide 504 can rotate in the same rotation direction 507 as the first drive shaft 501 rotates. However, the first guide 504 may not be affected by the rotation of the second drive shaft 502.

The second guide 505 may be connected to the second drive shaft 502 and the third drive shaft 503. The second guide 505 can rotate in the same rotational direction 508 or 509 as the second drive shaft 502 or the third drive shaft 503 as the drive shaft 502 or 503 rotates.

According to an embodiment of the present invention, the second guide 505 may be a guide whose length is adjusted. As shown, the three-dimensional dental model scanner 101 can adjust the length of the second guide 505 along the length adjusting direction 510. That is, the three-dimensional dental model scanner 101 can adjust the distance between the second drive shaft 502 and the third drive shaft 503 by adjusting the length of the second guide 505. However, the illustrated second guide 505 is only one example in which the length is regulated, and the scope of the present invention includes any type of length-adjustable guide other than the illustrated second guide 505.

3, the three-dimensional dental model scanner 101 includes a first drive shaft 301, a second drive shaft 302, a first guide 305, and a second guide 306, The distance to the camera 308 is adjusted. 3, the distance between the second driving shaft 502 and the camera 506 can be adjusted by adjusting the length of the second guide 505 in the three-dimensional dental model scanner 101.

The three-dimensional dental model scanner 101 may adjust the photographing position of the camera 506 to acquire an image of the tooth model 102 in all directions. For example, the three-dimensional dental model scanner 101 includes drive shafts 501 to 503 and a plurality of drive shafts 501 to 503 for moving the camera on a virtual hemisphere corresponding to an area in which the image for the tooth model 102 can be obtained in all directions The motion of the guides 504 to 505 can be controlled.

Specifically, the three-dimensional dental model scanner 101 adjusts the length of the second guide 505 when the second driving shaft 502 is rotated so that the distance of the camera 506 relative to the tooth model 102 is constant .

The three-dimensional dental model scanner 101 can adjust the photographing direction of the camera 506 using the third driving shaft 503. [ Specifically, the three-dimensional dental model scanner 101 can rotate the third drive shaft 503 to adjust the photographing direction of the camera 506 so that the camera 506 looks at the center of the tooth model 102 during the scanning process have.

FIG. 6 is a diagram illustrating the operation of the example of FIG. 5, which implements a three-dimensional dental model scanner according to an embodiment of the present invention.

6, side views 610 through 630, perspective views 640 through 660, and a virtual semicircle 601 for the exemplary operation of FIG. 5 are shown. Although the reference numerals for the respective parts of the three-dimensional dental model scanner 101 are omitted in Fig. 6, the six-dimensional three-dimensional dental model scanner 101 is the same as the three-dimensional dental model scanner shown in Fig. 5 101).

Referring to the side views 610 to 630, the three-dimensional dental model scanner 101 fixes the first drive shaft 501 and the first guide 501, and the remaining drive shafts 502 to 503 and the second guide The photographing position of the camera 506 can be adjusted using the photographing unit 505.

In the side views 610 to 630, the three-dimensional dental model scanner 101 can rotate the second guide 505 using the second drive shaft 502. [ At this time, the three-dimensional dental model scanner 101 can adjust the length of the second guide 505 so that the camera 506 can move along the virtual semicircle 601. That is, the three-dimensional dental model scanner 101 can adjust the distance of the camera 506 with respect to the tooth model 102 by adjusting the length of the second guide 505.

Referring to the side views 610 to 630, the three-dimensional dental model scanner 101 rotates the third driving shaft 503 to rotate the third driving shaft 503 so that the camera 506 faces the teeth model 102, Can be adjusted.

Referring to the perspective views 640 to 660, the three-dimensional dental model scanner 101 can adjust the photographing position of the camera 506 using the drive shafts 501 to 503 and the guides 504 to 505 .

For example, the photographing position may include a photographing angle, which is an angle of the camera 506 with respect to the tooth model 102, and a photographing distance, which is a distance of the camera with respect to the tooth model 102. That is, the three-dimensional dental model scanner 101 can determine a plurality of photographing angles and a plurality of photographing distances. Then, the three-dimensional dental model scanner 101 moves the drive shafts 501 to 503 and the guides 504 to 505 so that the camera 506 is positioned at a position corresponding to a plurality of photographing angles and a plurality of photographing distances Can be controlled.

As another example, the shooting position can be expressed in the form of coordinates such as x-coordinate, y-coordinate, z-coordinate. That is, the three-dimensional dental model scanner 101 can determine coordinates for a plurality of photographing positions. The three-dimensional dental model scanner 101 can control the movement of the drive shafts 501 to 503 and the guides 504 to 505 so that the camera 506 is positioned on a position corresponding to a plurality of coordinates .

Specifically, the three-dimensional dental model scanner 101 can set the position of the camera 506 around the tooth model as three-dimensional coordinate values of x, y, and z. At this time, the three-dimensional dental model scanner 101 can set the scale of the coordinate value. For example, the three-dimensional dental model scanner 101 may set the coordinate value to the first decimal place.

The three-dimensional dental model scanner 101 can set the rotation values of the drive shafts 501 to 503 and the length of the second guide 505 on the basis of the position of the camera 506. Accordingly, the three-dimensional dental model scanner 101 can control the movement of the camera 506 by rotating the drive shafts 501 to 503 and adjusting the length of the second guide 505.

FIG. 7 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.

7, the first rail 701, the second rail 702, the third rail 703, the guide 704, the camera 705, the drive shaft 706, the first movement direction 708, A second movement direction 709, a length adjustment direction 710, and a virtual hemisphere 711 are shown.

Here, the rails 701 to 703 are parts for allowing an object to move along the direction in which the rails 701 to 703 are installed in the three-dimensional dental model scanner 101. For example, the rails 701 to 703 may have grooves depending on the direction in which the rails 701 to 703 are installed. Then, the three-dimensional dental model scanner 101 can control the movement of the object connected to the rails 701 to 703 in the direction in which the rails 701 to 703 are installed along the grooves.

Specifically, the movement of the object connected to the first rail 701 or the second rail 702 can be controlled along the x-axis direction. In other words, the third rail 703 connected to the first rail 701 and the second rail 702 can move along the x-axis in the first movement direction 708. The x-axis, the y-axis, and the z-axis shown in Fig. 7 are for illustrative purposes only and do not limit the scope of the present invention in order to distinguish the direction of movement in Fig.

The third rail 703 can be installed along the y-axis. Accordingly, movement of the object connected to the third rail 703 can be controlled along the y-axis direction. For example, the guide 704 connected to the third rail 703 can be controlled to move in the y-axis direction along the third rail 703. That is, the second movement direction 709, which is the movement direction of the guide 704, means the direction in which the guide 704 moves along the y-axis.

Referring to FIG. 7, the guide 704 may be connected to the third rail 703. Therefore, when the third rail 703 moves, the guide 704 moves as well. The guide 704 can be controlled to move in the y-axis direction in which the third rail 703 is installed. That is, the three-dimensional dental model scanner 101 according to an embodiment of the present invention can control the movement of the third rail 703 and the guide 704. [ The three-dimensional dental model scanner 101 can determine the position of the guide 704 on the x-axis and the y-axis.

The guide 704 can be adjusted in length along the length adjustment direction 710. For example, the guide 704 can be adjusted in length of the guide 704 along the z-axis corresponding to the lengthwise adjustment direction 710. The guide 704 may be connected to the drive shaft 706 and the camera 705.

The three-dimensional dental model scanner 101 can adjust the position of the camera 707 on the z axis by adjusting the length of the guide 704. [ The three-dimensional dental model scanner 101 controls the movement of the third rail 703 and the guide 704 to adjust the position of the camera 707 on the x- and y-axes. That is, the three-dimensional dental model scanner 101 can adjust the position of the camera 707 on the x-axis, the y-axis, and the z-axis by adjusting the position and length of the third rail 703 and the guide 704.

The three-dimensional dental model scanner 101 may further include at least one drive shaft at a portion where the guide 704 and the third rail 703 are connected (the upper end of the guide 704). The three-dimensional dental model scanner 101 can rotate the guide 704 using the drive shaft. Alternatively, the three-dimensional dental model scanner 101 may further include at least one drive shaft at a portion where the guide 704 and the camera 707 are connected (the lower end of the guide 704). The three-dimensional dental model scanner 101 can rotate the camera 707 using the drive shaft. The at least one additional drive shaft described in this paragraph may be perpendicular to the drive shaft 706.

The three-dimensional dental model scanner 101 can adjust the photographing position of the camera 705 to obtain an image of the tooth model 102 in all directions. That is, the three-dimensional dental model scanner 101 can adjust the position of the camera 707 on the x-axis, the y-axis, and the z-axis by adjusting the position and length of the third rail 703 and the guide 704. For example, the three-dimensional dental model scanner 101 can control the movement of the third rail 703 and the guide 704 so that the photographing position of the camera 705 is adjusted on the virtual hemisphere 711. Here, the hypothetical hemisphere 711 corresponds to an area in which the image for the tooth model 102 can be obtained in all directions.

Specifically, the three-dimensional dental model scanner 101 can maintain the distance of the camera 705 to the tooth model 102 constant by adjusting the position and length of the third rail 703 and the guide 704 . Then, the three-dimensional dental model scanner 101 can adjust the photographing direction of the camera 705 using the drive shaft 706. More specifically, the three-dimensional dental model scanner 101 can adjust the photographing direction of the camera 705 so that the camera 705 looks at the center of the tooth model 102 using the drive shaft 706. [ Alternatively, the three-dimensional dental model scanner 101 may adjust the photographing direction of the camera 705 using the drive shaft 706 and at least one or more additional drive shafts.

The photographing position of the camera 705 can be expressed in the form of coordinates such as an x coordinate, a y coordinate, and a z coordinate. That is, the three-dimensional dental model scanner 101 can determine coordinates for a plurality of photographing positions. The three-dimensional dental model scanner 101 can control the movement of the third rail 703 and the guide 704 so that the camera 705 is positioned at a position corresponding to a plurality of coordinates. Then, the three-dimensional dental model scanner 101 can adjust the photographing direction of the camera 705 using the drive shaft 706. Then, the camera 705 can acquire an image of the tooth model 102 at a plurality of photographing positions.

The photographing position of the camera 705 may include a photographing angle which is an angle of the camera 705 with respect to the tooth model 102 and a photographing distance which is a distance of the camera with respect to the tooth model 102. [ That is, the three-dimensional dental model scanner 101 can determine a plurality of photographing angles and photographing distances corresponding to a plurality of photographing positions. The three-dimensional dental model scanner 101 has a third rail 703, a guide 704 and a drive shaft 706 so that the camera 705 is positioned at a position corresponding to a plurality of photographing angles and a plurality of photographing distances Can be adjusted.

FIG. 8 is a diagram showing an example of the configuration of a three-dimensional dental model scanner according to an embodiment of the present invention.

Referring to Fig. 8, a three-dimensional dental model scanner 101, a cover 801, and a camera 802 are shown. The three-dimensional dental model scanner 101 includes a cover 801 and a camera 802. Here, the cover 801 refers to a hemispherical structure corresponding to an area in which an object to be scanned can be taken in all directions, such as the tooth model 102. Specifically, the cover 801 may be in the shape of a hemisphere centered on a portion on which an object to be scanned is to be laid. That is, the distance from the points on the surface of the cover 801 to the portion where the tooth model 102 will be placed may be constant.

Here, the camera 802 refers to a part for acquiring an image of an object to be scanned in the three-dimensional dental model scanner 101. The camera 802 can be controlled in movement along the cover 801. [ That is, the three-dimensional dental model scanner 101 can control the movement of the camera 802 along the cover 801 to obtain an image for the tooth model 102 in all directions.

That is, the three-dimensional dental model scanner 101 adjusts the photographing position of the camera 802 using the cover 801 and the camera 802, and obtains the image for the tooth model 102 in all directions have.

The present specification aims to provide a clear understanding by providing two examples of implementing the three-dimensional dental model scanner 101 shown in Fig. This is merely an example for the sake of understanding, and the scope of the present invention is not limited to the three examples described below.

In one example, the cover 801 may include a magnetic body whose movement is controlled along the cover 801, and which has a polarity opposite to that of the camera 802 to attract the camera 802. [ The three-dimensional dental model scanner 101 can control the movement of the camera 802 along the cover 801 by controlling the motion of the magnetic body. Specifically, the three-dimensional dental model scanner 101 can adjust the photographing position of the camera 802 with respect to the tooth model 102 in all directions along the cover 801 using a magnetic body. A detailed description thereof is given in the description of FIG.

In another example, the cover 801 may include a semicylindrical rail centered about the portion to which the object to be scanned, such as the tooth model 102, will rest. Then, the cover 801 can rotate in a direction parallel to the horizontal plane on which the object is placed. The camera 802 is connected to a semicircular rail, and movement along the semicircular rail can be controlled. The three-dimensional dental model scanner 101 can adjust the angle on the vertical plane of the camera 802 with respect to the object using a semicircular rail. The angle on the horizontal plane of the camera 802 with respect to the object can be adjusted using the cover 801. [ A detailed description thereof is given in the description of FIG.

FIG. 9 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.

9, a cover 901, a camera 902, and a magnetic body 903 are shown. Here, the cover 901 refers to a hemispherical structure corresponding to an area in which the tooth model 102 can be photographed in all directions. For example, the cover 901 may be a structure corresponding to the virtual hemisphere 711 shown in Fig. The center of the cover 901 may be a portion where the tooth model 102 is to be placed and the internal points of the cover 901 may be located a certain distance from the tooth model 102.

The cover 901 may have a space between the inside of the cover 901 and the outside of the cover 901. The magnetic body 903 is located in this space, and movement along the cover 901 in this space can be controlled. Here, the magnetic body 903 may be a magnetic object having a polarity opposite to that of the camera 902. [ For example, the magnetic body 903 may be an object such as a magnet. Alternatively, the three-dimensional dental model scanner 101 may control the magnetism of the inner surface of the cover 901 and the magnetic body 903 may represent a portion of the inner surface of the cover 901 that has an opposite polarity to the camera 902 have. That is, the magnetic body 903 may include a portion or an object that exhibits an opposite polarity to the camera 902.

In Fig. 9, the camera 902 can be pulled by the magnetic body 903. That is, the camera 902 can be fixed to the inner surface of the cover 901 by the magnetic force of the magnetic body. Then, when the magnetic substance 903 moves, the camera 902 moves along the magnetic substance 903. Therefore, the three-dimensional dental model scanner 101 can control the movement of the camera 902 by controlling the movement of the magnetic body 903. [

The three-dimensional dental model scanner 101 can control the movement of the magnetic body 903 along the cover 901, thereby adjusting the photographing position of the camera 902. Then, the camera 902 can acquire the image for the tooth model 102 in all directions at the adjusted photographing position.

The photographing position of the camera 902 can be expressed in the form of coordinates such as an x coordinate, a y coordinate, and a z coordinate. That is, the three-dimensional dental model scanner 101 can determine coordinates for a plurality of photographing positions. The three-dimensional dental model scanner 101 can control the movement of the magnetic body 903 so that the camera 902 is positioned at a position corresponding to a plurality of coordinates. The camera 902 may then acquire images for the tooth model 102 at locations corresponding to a plurality of coordinates.

Alternatively, the photographing position of the camera 902 may be represented by the photographing angle of the camera 902 with respect to the tooth model 102. [ That is, the three-dimensional dental model scanner 101 can determine the photographing angles corresponding to the plurality of photographing positions. The three-dimensional dental model scanner 101 can control the movement of the magnetic body 903 so that the camera 902 is positioned at a position corresponding to the photographing angles. Then, the camera 902 can acquire an image at a position corresponding to the photographing angles.

10 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.

10, a cover 1001, a circular rail 1002, a semicircular rail 1003, a camera 1004, a rotating direction 1005, and a moving direction 1006 are shown. Here, the cover 1001 means a hemispherical structure corresponding to an area in which the tooth model 102 can be photographed in all directions. Unlike the cover 901 of Fig. 9, the cover 1001 includes a semicircular rail 1003. The cover 1001 can rotate in a direction 1006 parallel to the horizontal plane on which the object to be scanned is placed.

The circular rail 1002 refers to a circular structure having the center of a circle centered at a portion on which the tooth model 102 is to be placed. The circular rail 1002 is a rail provided at the lower end of the cover 1001 and can be connected to the cover 1001. An object connected to the circular rail 1002 can move or rotate along the circular rail 1002. That is, the three-dimensional dental model scanner 101 can rotate the cover 1001 connected to the circular rail 1002 along the rotating direction 1005.

The semicircular rail 1003 is a rail included as part of the cover 1001. The center of the semicylindrical rail 1003 is the same as the center of the portion where the tooth model 102 is to be placed. Then, the semicircular rail 1003 passes the center point of the outer surface of the cover 1001. An object connected to the semicircular rail 1003 can move along the direction of movement 1006. For example, the camera 1004 connected to the semicircular rail 1003 can be controlled in motion along the semicircular rails.

The camera 1004 may be connected to the semicircular rail 1003. In addition, the camera 1004 can move according to the form in which the semicircular rail 1003 is installed. That is, the camera 1004 can move in the moving direction 1006 along the semicircular rail 1003. The position of the camera 1004 moving along the semicylindrical rail 1003 can be expressed as an angle with respect to the tooth model 102. That is, it can be expressed as an angle with respect to the tooth model 102 on the vertical plane of the three-dimensional dental model scanner 101. For example, when the camera 1004 is positioned at the lower end of the semicircular rail 1003 at an angle of 0 degree and the camera 1004 is positioned at the center of the semicircular rail 1003, To 90 degrees.

The three-dimensional dental model scanner 101 can adjust the angle on the horizontal plane of the camera 1004 with respect to the tooth model 102 by rotating the cover 1001. For example, when the three-dimensional dental model scanner 101 rotates the cover 1001 by 90 degrees, the angle on the horizontal plane of the camera 1004 may be 90 degrees.

The three-dimensional dental model scanner 101 can adjust the photographing position of the camera 1004 using the movement of the cover 1001 and the semicircular rails 1003. Here, the photographing position can be expressed by an angle on the horizontal plane and the vertical plane of the camera 1004. Then, the angle on the horizontal plane can be adjusted by rotating the cover 1001 by the three-dimensional dental model scanner 101. The angle on the vertical plane can be controlled by controlling the movement of the camera 1004 along the semicylindrical rail 1003 by the three-dimensional dental model scanner 1001.

Alternatively, the photographing position of the camera 1004 may be expressed in the form of coordinates such as an x coordinate, a y coordinate, and a z coordinate. That is, the three-dimensional dental model scanner 101 can determine coordinates for a plurality of photographing positions. The three-dimensional dental model scanner 101 can control the movement of the camera 1004 on the cover 1001 and the semicircular rail 1003 so that the camera 1004 is positioned at a position corresponding to the photographing position.

11 is a view illustrating an example of implementing a three-dimensional dental model scanner according to an embodiment of the present invention.

Referring to Fig. 11, a semicircular rail 1101, a circular rail 1102, a camera 1103, a rotation direction 1104, and a movement direction 1105 are shown. The three-dimensional dental model scanner 101 shown in Fig. 11 is similar to the three-dimensional dental model scanner 101 shown in Fig. 10, except that the remaining portion except the semicircular rail 1003 in the cover 1001 is not included Do not.

That is, the circular rail 1102 corresponds to the circular rail 1002, the semicircular rail 1101 corresponds to the semicircular rail 1003, and the camera 1103 corresponds to the camera 1004. The rotation direction 1104 corresponds to the rotation direction 1005, and the movement direction 1105 corresponds to the movement direction 1006.

The semicircular rail 1101 is a semicircular rail centered around the portion to which the object to be scanned, such as the tooth model 102, will be placed. Then, the semicircular rail 1101 can rotate in a direction parallel to the horizontal plane on which the object is placed. In other words, the semicircular rail 1101 can rotate in the direction of rotation 1104 along the circular rail 1102.

The three-dimensional dental model scanner 101 can adjust the photographing position of the camera 1103 by controlling the rotation of the semicylindrical rail 1101 and the movement of the camera 1103 connected to the semicircular rail 1101. Here, the photographing position can be expressed by an angle on the horizontal plane and the vertical plane of the camera 1101. [ Then, the three-dimensional dental model scanner 101 can adjust the angle on the horizontal plane of the camera 1103 with respect to the tooth model 102 by rotating the semicylindrical rail 1101. The three-dimensional dental model scanner 101 controls the movement of the camera 1103 along the semicylindrical rail 1101 to adjust the angle on the vertical plane of the camera 1103 with respect to the tooth model 102.

When the photographing position of the camera 1103 is adjusted in accordance with the horizontal plane and the angle of the vertical plane of the camera 1103 with respect to the tooth model 102, Images can be obtained.

Implementations of the various techniques described herein may be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or combinations thereof. Implementations may be implemented in a computer program product, such as an information carrier, e.g., a machine readable storage device, such as a computer readable storage medium, for example, for processing by a data processing apparatus, May be embodied as a computer program recorded on a device (computer readable medium). A computer program, such as the computer program (s) described above, may be written in any form of programming language, including compiled or interpreted languages, and may be stored as a stand-alone program or in a module, component, subroutine, As other units suitable for use in the present invention. A computer program may be deployed to be processed on one computer or multiple computers at one site or distributed across multiple sites and interconnected by a communications network.

Processors suitable for processing a computer program include, by way of example, both general purpose and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read-only memory or a random access memory or both. The elements of a computer may include at least one processor for executing instructions and one or more memory devices for storing instructions and data. Generally, a computer may include one or more mass storage devices for storing data, such as magnetic, magneto-optical disks, or optical disks, or may receive data from them, transmit data to them, . ≪ / RTI > Information carriers suitable for embodying computer program instructions and data include, for example, semiconductor memory devices, for example, magnetic media such as hard disks, floppy disks and magnetic tape, compact disk read only memory A magneto-optical medium such as a floppy disk, an optical disk such as a DVD (Digital Video Disk), a ROM (Read Only Memory), a RAM , Random Access Memory), a flash memory, an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and the like. The processor and memory may be supplemented or included by special purpose logic circuitry.

In addition, the computer-readable medium can be any available media that can be accessed by a computer, and can include both computer storage media and transmission media.

While the specification contains a number of specific implementation details, it should be understood that they are not to be construed as limitations on the scope of any invention or claim, but rather on the description of features that may be specific to a particular embodiment of a particular invention Should be understood. Certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Further, although the features may operate in a particular combination and may be initially described as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, Or a variant of a subcombination.

Likewise, although the operations are depicted in the drawings in a particular order, it should be understood that such operations must be performed in that particular order or sequential order shown to achieve the desired result, or that all illustrated operations should be performed. In certain cases, multitasking and parallel processing may be advantageous. Also, the separation of the various device components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and devices will generally be integrated together into a single software product or packaged into multiple software products It should be understood.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

101: 3D Dental Model Scanner
102: tooth model

Claims (16)

In a three-dimensional dental model scanner,
Drive axes rotating in respective independent rotational directions, the respective rotational directions being parallel to each other or mutually in a direction in which the drive axes rotate;
Guides connected to the drive shafts; And
The movement of which is controlled by the drive shafts and the guides and which is connected to one of the drive shafts,
Lt; / RTI >
The three-dimensional dental model scanner comprises:
Setting a camera photographing position centered on an object as a three-dimensional coordinate value, setting a rotation value of each of the drive shafts corresponding to a photographing position of the camera, setting the rotation shafts of the drive shafts and the drive shafts And controls the camera movement by controlling the photographing position of the camera without moving the object to be scanned by using the guides moved by the camera,
The camera comprises:
Wherein the virtual three-dimensional model scanner obtains an image of the object at the adjusted photographing position, the virtual trajectory representing a virtual trajectory on the semicircle according to the photographing position.
The method according to claim 1,
Wherein,
Dimensional model scanner is located on a virtual hemisphere centering on the object.
3. The method of claim 2,
Adjusting the photographing position of the camera with respect to the object to be scanned using the drive shafts and the guides, and adjusting the photographing direction of the camera so as to look at the center of the object using one drive shaft to which the camera is connected Dimensional dental model scanner.
The method according to claim 1,
The guides,
At least one length-adjustable guide,
Wherein,
And an imaging distance which is an angle of the camera with respect to the object and a distance between the object and the object.
5. The method of claim 4,
The three-dimensional dental model scanner comprises:
Wherein the photographing angle is adjusted using the drive shafts, and the photographing distance is kept constant by using a guide whose length is adjusted.
The method according to claim 1,
The drive shafts,
And a drive shaft moving along the x-axis and the y-axis on the horizontal plane of the three-dimensional dental model scanner,
Wherein the at least one guide comprises:
A three-dimensional dental model scanner comprising at least one length-adjustable guide.
The method according to claim 6,
The three-dimensional dental model scanner comprises:
Wherein the x-coordinate and y-coordinate of the photographing position are adjusted using a driving axis moving along the x-axis and the y-axis, and the z coordinate of the photographing position is adjusted using the at least one length- Dental model scanner.
In a three-dimensional dental model scanner,
A hemispherical cover centered on a portion where an object to be scanned is to be placed and corresponding to an area in which the object can be photographed in all directions;
A magnetic body positioned in a space formed between the inside of the hemispherical cover and the outside of the cover; And
And a motor connected to the inner surface of the cover by a magnetic force of the magnetic body,
Lt; / RTI >
The three-dimensional dental model scanner comprises:
The magnetism of the inner surface of the cover is adjusted so that the magnetic body has an opposite polarity to the camera at the inner surface of the cover,
After the coordinates for the plurality of photographing positions are determined, the movement of the magnetic body at the inner surface of the cover is controlled so that the camera is located at a position corresponding to the determined plurality of coordinates, so that the photographing position of the camera with respect to the object in all directions ≪ / RTI &
The camera comprises:
Acquiring an image of the object at the adjusted photographing position
3D Dental Model Scanner.
9. The method of claim 8,
The cover
And a magnetic body for controlling movement along the cover and having a polarity opposite to that of the camera to attract the camera,
The three-dimensional dental model scanner comprises:
A three-dimensional dental model scanner for controlling the movement of the camera along the cover by controlling the movement of the magnetic body
10. The method of claim 9,
The three-dimensional dental model scanner comprises:
And adjusting the photographing position of the camera with respect to the object in all directions along the cover using the magnetic body
3D Dental Model Scanner.
9. The method of claim 8,
The cover
A semicircular rail centered about a portion on which the object is to be placed, and which rotates in a direction parallel to a horizontal plane on which the object is placed,
The camera comprises:
Wherein the semicircular rail is connected to the semicircular rail, and movement is controlled along the semicircular rail.
12. The method of claim 11,
Adjusting the angle on the vertical plane of the camera with respect to the object using the semicylindrical rails and adjusting the angle on the horizontal plane of the camera with respect to the object using the cover
3D Dental Model Scanner.
delete A method for controlling a three-dimensional dental model scanner,
Setting a virtual hemisphere corresponding to an area in which an image can be acquired in all directions with respect to an object to be scanned;
Converting the set virtual hemispheric points into a three-dimensional coordinate value, and then setting a plurality of photographing positions at which the camera will be positioned based on the three-dimensional coordinate value around the object;
Setting a rotation value of each of the driving axes for controlling the movement of the camera corresponding to the set photographing position; And
Wherein the control unit controls the movement of the camera through the guides that are driven by the driving axes that rotate the driving axes of which rotation values are set based on the set plurality of photographing positions, Step of acquiring image
Lt; / RTI >
The drive shafts,
And independently rotate in accordance with the rotation direction based on the set rotation values, and the rotation directions are parallel to each other or perpendicular to each other,
The camera comprises:
Wherein the motion is controlled by the driving shafts and the guides and represents a moving trajectory on a virtual semicircle according to the photographing position, How to control a dental model scanner. A method for controlling a three-dimensional dental model scanner,
Setting a plurality of photographing positions where a camera is to be placed on a hemispherical cover provided in the three-dimensional dental model scanner; And
Controlling movement of the camera according to the set plurality of photographing positions and acquiring an image of the object at the plurality of photographing positions using the camera
Lt; / RTI >
The hemispherical cover may include:
And a magnetic body disposed in a space formed between the inside of the hemispherical cover and the outside of the cover, the magnetic body corresponding to an area for acquiring an image of the object in all directions with respect to an object to be scanned,
The camera is connected to the inner surface of the cover by the magnetic force of the magnetic body, the movement is controlled along the cover,
The three-dimensional dental model scanner comprises:
The magnetism of the inner surface of the cover is adjusted so that the magnetic body has an opposite polarity to the camera at the inner surface of the cover,
After the coordinates for the plurality of photographing positions are determined, the movement of the magnetic body at the inner surface of the cover is controlled so that the camera is located at a position corresponding to the determined plurality of coordinates, so that the photographing position of the camera with respect to the object in all directions A method for controlling a three dimensional dental model scanner to be adjusted.
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