KR102278040B1 - Dental Treatment Planning Apparatus Using Matching Of 2D Medical Image And 3D Medical Image And Method Thereof - Google Patents

Abstract

The present invention provides a two-dimensional image capturing unit that generates a two-dimensional medical image by photographing the head of a subject, a three-dimensional image capturing unit that generates a three-dimensional medical image by photographing a dental area of the subject, and a two-dimensional medical image Comprising an image conversion unit for generating a transformed image by adjusting and projecting a viewing camera on a 3D medical image to meet the conditions, and an image matching unit for generating a registered image by registering the transformed image with one region of the 2D medical image A dental treatment planning apparatus and method using image registration are provided.

Description

Dental Treatment Planning Apparatus Using Matching Of 2D Medical Image And 3D Medical Image And Method Thereof

The present invention relates to a dental treatment planning apparatus and method, and more particularly, to a dental treatment planning apparatus and method for matching a 2D medical image and a 3D medical image.

A large-area computed tomography (CT) imaging device that covers a relatively wide field of view (FOV) has the advantage of efficiently establishing a treatment plan for the operator because it captures not only the patient's teeth but also the entire head of the recipient. On the other hand, since large-area CT imaging devices are relatively expensive, they are generally only available in large hospitals.

Therefore, in consideration of cost, most small-scale hospitals use a small area CT imaging device that covers a relatively small field of view and establish a treatment plan for the operator by photographing only the dental area of the recipient.

Accordingly, in the present invention, a method of matching a 3D medical image generated by a CT imaging device imaging a tooth region of a recipient to a 2D medical image generated by a Ceph (cephalometrics) imaging device imaging the subject's head is proposed. .

However, since the two-dimensional medical image generated by the Ceph (cephalometrics) imaging device imaging the subject's head is an image generated by positioning the subject's head between the X-ray source and the image detector, imaging distortion occurs. On the other hand, since the 3D medical image taken by the CT imaging device is reconstructed by correcting the imaging distortion in the CT imaging device itself, there is theoretically no imaging distortion.

Accordingly, there is a problem in that it is difficult to match the 2D medical image in which the imaging distortion occurs and the 3D medical image in which the imaging distortion is corrected.

An object of the present invention is to provide an integrated process capable of applying analysis information of a 2D medical image to analysis of a 3D medical image or applying analysis information of a 3D medical image to analysis of a 2D medical image.

Another object of the present invention is to provide an integrated process capable of establishing a treatment plan on a 2D medical image and simultaneously establishing a treatment plan on a 3D medical image.

In order to solve the above problems, the present invention provides a two-dimensional image capturing unit for generating a two-dimensional medical image by photographing a subject, a three-dimensional image capturing unit for generating a three-dimensional medical image by photographing a subject, and three-dimensional medical care An image conversion unit for generating a transformed image having the same shooting distortion as a 2D medical image by adjusting and projecting a viewing camera on the image, and an image matching unit for generating a registered image by registering the transformed image with one region of the 2D medical image Provided is a dental treatment planning apparatus using matching of a 2D medical image and a 3D medical image including a part.

In addition, the treatment planner may further include a treatment planner providing an interface so that the operator can perform at least one of image analysis, treatment plan establishment, and treatment device design of the subject using the matched image.

Also, the 2D image capturing unit may include an X-ray source for irradiating X-rays to the subject, and a second image detecting unit for detecting a 2D medical image by projecting the subject by X-ray irradiation.

Also, the image converter may include a first image detector configured to detect a transformed image by projecting a 3D medical image, and a viewing camera configured to project the 3D medical image to the first image detector.

Also, the image converter may adjust and repeatedly converge at least one of the position and angle of the viewing camera, the position of the first image detector, the position of the 3D medical image, and the viewing angle to meet the shooting condition of the 2D medical image.

In addition, the image converter may match the photographing condition of the 2D medical image based on the distance information between the X-ray source, the subject, and the second image detector.

The apparatus may further include a registration error determination unit configured to determine a registration tolerance between the 2D medical image and the transformed image.

Also, if the registration tolerance is equal to or greater than the reference value, the image converter may regenerate the transformed image by adjusting and projecting the viewing camera on the 3D medical image. In addition, the 2D medical image may include front and side 2D medical images. can

In addition, two landmark lines are formed by applying landmarks respectively displayed in areas other than one area of the front and side 2D medical images to the 3D medical image, and the intersection of the two landmark lines is applied to the 3D medical image It may further include a landmark display unit displayed on the.

In addition, the steps of generating a two-dimensional medical image by photographing the subject, generating a three-dimensional medical image by photographing the subject, and generating a transformed image by photographing a three-dimensional medical image under the shooting conditions of the two-dimensional medical image Provided is a dental treatment planning method using registration of a 2D medical image and a 3D medical image, comprising the steps of: generating a registered image by registering the transformed image with one region of the 2D medical image.

The method may further include performing at least one of an image analysis of the subject, establishment of a treatment plan, and design of a treatment device by an operator using the matched image.

The method may further include determining a registration tolerance between the 2D medical image and the transformed image.

According to the present invention, since the image analysis is performed using the matched image, the analysis information of the 2D medical image is applied to the analysis of the 3D medical image or the analysis information of the 3D medical image is applied to the analysis of the 2D medical image. It has the effect of providing an integrated process that can

In addition, according to the present invention, since a treatment plan is established using a matched image, it is possible to provide an integrated process for establishing a treatment plan on a 2D medical image and at the same time establishing a treatment plan on a 3D medical image there is

In addition, according to the established treatment plan, a treatment device, for example, an orthodontic device, an indirect attachment tray, a jaw surgery wafer, dentures, etc. may be designed.

In addition, according to the present invention, since image analysis, treatment plan establishment, and treatment device design are performed through one integrated process based on the matched image, treatment consultation and treatment time can be shortened.

In addition, since the number of X-ray and CT scans can be reduced, there is an effect of minimizing the X-ray exposure of the recipient.

1 is a block diagram of a dental treatment planning apparatus using image registration according to an embodiment of the present invention.
FIG. 2 is a block diagram of the 2D image capturing unit of FIG. 1 .
FIG. 3 is an exemplary diagram of a two-dimensional medical image generated by the two-dimensional image capturing unit 110 of FIG. 1 by photographing a subject.
FIG. 4 is an exemplary diagram of a 3D medical image generated by the 3D image capturing unit 120 photographing a subject.
FIG. 5 is a detailed block diagram of the image converter of FIG. 1 .
FIG. 6 is an exemplary diagram of a registered image generated by the image matching unit 140 of FIG. 1 .
7 is a detailed block diagram of the treatment planning unit 160 of FIG. 1 .
FIG. 8 is a view for explaining a landmark display method of the landmark display unit of FIG. 7 .
9(a) and 9(b) are diagrams illustrating landmarks displayed on the matching image by the landmark display unit of FIG. 7 .
10 is a flowchart of a dental treatment planning method using image registration according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In this case, it should be noted that the same components in the accompanying drawings are indicated by the same reference numerals as much as possible. In addition, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted.

1 is a block diagram of a dental treatment planning apparatus using registration of a 2D medical image and a 3D medical image according to an embodiment of the present invention, and FIG. 2 is a block diagram of the 2D image capturing unit of FIG. 1 .

As shown in FIG. 1 , the dental treatment planning apparatus using the registration of a 2D medical image and a 3D medical image according to an embodiment of the present invention includes a 2D image capturing unit 110 and a 3D image capturing unit 120 . , the image conversion unit 130 , the image matching unit 140 , and the treatment planning unit 160 may be included.

The two-dimensional image capturing unit 110 generates a two-dimensional medical image by photographing a subject under a specific photographing condition. Here, the two-dimensional image capturing unit 110 may be a Ceph (cephalometrics) photographing device, but is not limited thereto, and any device that generates a two-dimensional image by photographing a subject is sufficient.

Specifically, as shown in FIG. 2 , the two-dimensional image capturing unit 110 includes an X-ray source 111 that irradiates X-rays to the subject (eg, the head) and the subject (eg, the head) by X-ray irradiation. ) may be projected to include a second image detector 112 that detects a two-dimensional medical image.

FIG. 3 is an exemplary diagram of a two-dimensional medical image generated by the two-dimensional image capturing unit 110 of FIG. 1 by photographing the subject, and FIG. 4 is a 3D image capturing unit 120 generated by capturing the subject. It is an exemplary diagram of a dimensional medical image.

As shown in FIG. 3 , the 2D image capturing unit 110 generates a side 2D medical image by photographing one side of the subject's head (a), and photographing the front of the subject's head to create a front 2D medical image can create

And, as shown in FIG. 4 , the 3D image capturing unit 120 generates a 3D medical image by photographing a dental area of a recipient. Here, the 3D image capturing unit 120 may be a computed tomography (CT) imaging device, but is not limited thereto, and any device that generates a 3D image by imaging a subject is sufficient.

On the other hand, a large-area CT imaging device that covers a relatively wide field of view (FOV) generates a three-dimensional head image by imaging the entire head of the recipient as well as the teeth of the recipient, but because it is relatively expensive, it is only available in large hospitals. it is common

The three-dimensional image capturing unit 120 according to an embodiment of the present invention generates a three-dimensional medical image by photographing a dental area of a subject using a small-area CT imaging device that covers a relatively narrow field of view (FOV). By matching this to the two-dimensional medical image generated by the two-dimensional imaging unit 110, an effect similar to that of a large-area CT imaging apparatus can be achieved at a relatively low cost.

On the other hand, as described above, the 2D medical image generated by the 2D image capturing unit 110 is an image generated by positioning a subject between the X-ray source 111 and the second image detecting unit 112 and capturing it. Shooting distortion occurs. However, since the 3D medical image captured by the 3D image capturing unit 120 is reconstructed by correcting the photographing distortion in the 3D image capturing unit 120 itself, there is theoretically no photographing distortion. Therefore, it is difficult to match the 2D medical image in which the imaging distortion occurs and the 3D medical image in which the imaging distortion is corrected.

In order to solve this problem, the image conversion unit 130 according to an embodiment of the present invention estimates a 2D medical image shooting condition using a viewing camera, projects a 3D medical image to generate a transformed image, This transformed image is matched to a 2D medical image.

FIG. 5 is a detailed block diagram of the image converter of FIG. 1 .

Specifically, as shown in FIG. 5 , the image converter 130 includes a first image detector 132 that detects a transformed image by projecting a 3D medical image, and a first image detector 132 that detects a 3D medical image. ) may be configured to include a viewing camera 131 for projecting it.

The image conversion unit 130 is a two-dimensional image capturing unit through the operation of the viewing camera to the two-dimensional image capturing unit 110, the X-ray source 111, the subject and the second image detection unit 112 gap information when the subject is photographed. It is possible to meet the shooting conditions of (110).

Also, the image conversion unit 130 may adjust at least one of the position and angle of the viewing camera 131 and the position of the first image detection unit 132 to match the head photographing condition of the subject.

Specifically, the image conversion unit 130 is the viewing camera 131 at the same interval as the interval between the X-ray source 111, the subject, and the second image detector 112 when the two-dimensional image capturing unit 110 captures the subject's head. ), the converted image detected by the first image detection unit 132 may be matched with the shooting condition of 2D medical imaging.

FIG. 6 is an exemplary diagram of a registered image generated by the image matching unit 140 of FIG. 1 .

As shown in FIG. 6 , the image matching unit 140 generates a registered image by registering the transformed image with one region of the 2D medical image. Here, the registered image is an image in which a 2D image and a 3D image are combined, and a 3D medical image is disposed in one area (eg, a tooth area) of the recipient, and a 2D medical image is disposed in other areas.

Referring to FIG. 1 , a dental treatment planning apparatus using registration of a 2D medical image and a 3D medical image according to an embodiment of the present invention includes a registration error determining unit that determines a registration tolerance between a 2D medical image and a converted image. It may be configured to further include (150).

If the matching tolerance determined by the matching error determining unit 150 is equal to or greater than the reference value, the image converter 130 may regenerate the converted image by adjusting and projecting the viewing camera on the 3D medical image. Such a process may be repeatedly performed until the matching tolerance becomes less than the reference value. That is, the image converter 130 matches the transformed image to the 2D medical image through the iterative convergence matching method based on the 2D medical image.

Referring to FIG. 3 , the 2D medical image generated by the 2D image capturing unit 110 may include a front 2D medical image and a side 2D medical image. Accordingly, the above-described registration process may be performed twice based on the front 2D medical image and the side 2D medical image.

The treatment planning unit 160 may provide a user interface so that the operator may perform at least one of an image analysis of a subject, a treatment plan establishment, and a treatment device design using the matched image. Here, the treatment planning unit 160 may receive the matching image from the matching error determining unit 150 when the matching tolerance is less than the reference value.

Meanwhile, the 2D image capturing unit 110 and the 3D image capturing unit 120 may be provided together in one device or may be formed as separate modules. In addition, the image conversion unit 130 , the image matching unit 140 , and the registration error determining unit 150 are formed as one module and are provided in the treatment planning unit 160 or the 2D and 3D image capturing unit 110 , 120), or alternatively, each may be provided as a separate module. In addition, each component may send and receive image data through communication.

7 is a detailed block diagram of the treatment planning unit 160 of FIG. 1 .

Specifically, as shown in FIG. 7 , the treatment planning unit 160 includes an input unit 161 , a display unit 162 , an interface unit 163 , a memory 164 , a landmark display unit 165 , and an image analysis unit ( 166), a treatment plan establishment unit 167 and a treatment device design unit 168 may be included.

Here, the treatment planning unit 160 is an electronic device used by the operator who wants to treat the operator, and may be a tablet PC, a computer, a laptop, or the like.

In addition, the treatment planning unit 160 may communicate with the above-described 2D and 3D image capturing units 110 and 120 and a main server (not shown). Here, the treatment planner 160 may transmit image data and a treatment plan to an external device through the main server. To this end, the treatment planning unit 160 is 5G (fifth generation mobile telecommunication), LTE-A (long term evolution-advanced), LTE (long term evolution), WCDMA (wideband code division multiple access) and wifi (wireless fidelity) It is possible to perform wireless communication, such as. In addition, the treatment planner 160 may perform wired communication such as a universal serial bus (USB), a high definition multimedia interface (HDMI), and a digital video interactive (DVI) cable.

The input unit 161 generates input data in response to the operator's input. In addition, the input unit 161 includes a key pad, a dome switch, a touch panel, a jog & shuttle, a sensor, a touch key, and a menu button. (menu button) and the like.

The display unit 162 displays display data according to the operation of the treatment planning unit 160 . In particular, the display unit 162 displays a screen according to the execution and operation of an application, a web page, etc. for performing image analysis, treatment plan establishment, and treatment device design for the subject.

To this end, the display unit 162 includes a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, and a micro electro mechanical system (MEMS). systems) displays and electronic paper displays. Here, the display unit 162 may be combined with the input unit 161 to be implemented as a touch screen.

The memory 164 stores operation programs of the treatment plan establishment unit 160, and stores installation files such as applications for performing image analysis treatment plan establishment and treatment device design for the recipient, or access addresses such as web pages. etc. can be saved.

In addition, the memory 164 stores image data for the subject and a treatment plan established in relation to the image data. Here, the image data may be two-dimensional image data such as a pixel format image, Ceph, Panorama format image, an image acquired from an IO sensor, an image acquired through X-ray, etc., a volume format image, a Voxel format image, etc. It may be 3D image data such as an image, an image acquired through CT imaging, an image acquired through MRI imaging, or an image acquired through ultrasound imaging, and registered image data in which 2D image data and 3D image data are registered can be

8 is a view for explaining a landmark display method of the landmark display unit of FIG. 7, and FIGS. 9 (a) and 9 (b) show the landmarks displayed by the landmark display unit of FIG. 7 in the matching image. It is a drawing.

Referring to FIGS. 8 and 9 , the landmark display unit 165 applies each of the landmarks displayed in areas other than the teeth of the front and side 2D medical images to the 3D medical image to form two landmarks. A line is formed, and the intersection of two landmark lines is displayed on a 3D medical image. Here, the landmark is a specific point required for image analysis.

The image analysis unit 166 compares the landmarks displayed on the matched image with the average normal values of the sex and age of the recipient to generate an analysis result.

In the dental treatment planning apparatus using image registration according to an embodiment of the present invention, since image analysis is performed using the registered image, the analysis information of the 2D medical image is applied to the analysis of the 3D medical image, or the analysis of the 3D medical image is performed. An integrated process capable of applying the analysis information to analysis of a 2D medical image may be provided.

The treatment plan establishment unit 167 may establish a plurality of treatment plans based on the matched image, and may change at least one treatment plan among the established plurality of treatment plans. Meanwhile, the treatment plan established by the treatment plan establishment unit 167 may be transmitted to an external device (eg, a terminal used in a laboratory, etc.).

Since the dental treatment planning apparatus using image registration according to an embodiment of the present invention establishes a treatment plan using a registered image, it is possible to establish a treatment plan on a 2D medical image and a treatment plan on a 3D medical image at the same time. An integrated process can be provided.

The treatment device design unit 168 may design a treatment device, for example, an orthodontic device, an indirect attachment tray, a jaw surgery wafer, dentures, etc. according to the treatment plan established by the treatment plan management unit 167 .

The dental treatment planning apparatus using image registration according to an embodiment of the present invention can reduce treatment consultation and treatment time because image analysis, treatment plan establishment, and treatment device design are performed through one integrated process based on the registered image. have.

In addition, it is possible to reduce the number of X-ray and CT scans, thereby minimizing the X-ray exposure of the recipient.

The interface unit 163 displays the main screen on the display unit 162 by calling an interface for image analysis, treatment plan establishment, and treatment device design when receiving a setup signal for establishing a treatment plan for the recipient from the input unit 161 . do.

Here, the interface refers to a user interface that a user can check through the execution and operation of an application, a web page, etc. for performing image analysis, treatment plan establishment, and treatment device design.

The interface unit 163 appropriately provides the control signal received through the input unit 161 to the image analysis unit 166 , the treatment plan establishment unit 167 , the treatment device design unit 168 , and the like to perform an operation corresponding to the control signal. to do it

When a call signal for calling image data for a recipient is received from the input unit 161 , the interface unit 163 searches for image data stored in the memory 164 based on the call signal. Then, the image data related to the subject is called and displayed on the main screen. In this case, the call signal may include the name of the recipient or the patient number.

In addition, although it is described that the image data is stored in the memory 164 in the embodiment of the present invention, the present invention is not necessarily limited thereto, and the image data may be stored in the main server. As such, when the image data is stored in the main server, the treatment plan establishment unit 160 may call the image data from the main server to perform image analysis, treatment plan establishment, and treatment device design.

10 is a flowchart of a dental treatment planning method using image registration according to an embodiment of the present invention.

Hereinafter, a dental treatment planning method using registration of a two-dimensional medical image and a three-dimensional medical image according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10, but the two-dimensional medical treatment according to the embodiment of the present invention described above The same content as the dental treatment planning apparatus using the registration of the image and the 3D medical image will be omitted.

A dental treatment planning method using registration of a 2D medical image and a 3D medical image according to an embodiment of the present invention includes the steps of generating a 2D medical image (S10) and generating a 3D medical image (S20) And, generating a transformed image (S30), generating a registered image (S40), determining a registration tolerance (S50), and establishing a treatment plan using the registered image (S60) It may be composed of

First, the two-dimensional image capturing unit 110 generates a two-dimensional medical image by photographing a subject under a specific photographing condition (S10).

Specifically, when the X-ray source 111 irradiates X-rays to the head of the recipient, the head of the recipient is projected by the second image detector 112 to generate a two-dimensional medical image.

Next, the 3D image capturing unit 120 generates a 3D medical image by photographing the subject under the conditions for capturing the 2D medical image ( S20 ).

The three-dimensional image capturing unit 120 according to an embodiment of the present invention generates a three-dimensional medical image by photographing a dental area of a subject using a small-area CT imaging device that covers a relatively narrow field of view (FOV). By matching this to the two-dimensional medical image generated by the two-dimensional imaging unit 110, an effect similar to that of a large-area CT imaging apparatus can be achieved at a relatively low cost.

Next, the image converting unit 130 generates a transformed image by projecting the 3D medical image to meet the shooting conditions of the 2D medical image ( S30 ).

Specifically, when the viewing camera 131 projects the 3D medical image onto the first image detector 132 , the 3D medical image is projected onto the first image detector 132 to generate a transformed image.

As described above, since the transformed image has a photographing distortion that meets the photographing conditions of the 2D medical image, it is possible to relatively easily perform the registration of the 2D medical image and the 3D medical image.

Next, the image matching unit generates a registered image by registering the transformed image with one region of the 2D medical image (S40). Here, the registered image is an image in which a 2D image and a 3D image are combined, and a 3D medical image is disposed in one area (eg, a tooth area) of the recipient, and a 2D medical image is disposed in other areas.

Next, the registration error determination unit 150 determines a registration tolerance between the 2D medical image and the transformed image ( S50 ).

Here, the image converter 130 adjusts the positions of the first image detector 132 and the viewing camera 131 with respect to the 3D medical image when the matching tolerance determined by the matching error determiner 150 is equal to or greater than the reference value. The converted image may be regenerated by post-projection (S30). Such a process may be repeatedly performed until the matching tolerance becomes less than the reference value. That is, the image converter 130 matches the transformed image to the 2D medical image through the iterative convergence matching method based on the 2D medical image.

Next, if the matching tolerance determined by the matching error determining unit 150 is less than the reference value, the operator performs at least one of image analysis of the subject, treatment plan establishment, and treatment device design using the matching image (S60).

As described above, in the dental treatment planning method using the registration of the 2D medical image and the 3D medical image according to the embodiment of the present invention, since the image analysis is performed using the registration image, the analysis information of the 2D medical image is converted into 3D An integrated process that can be applied to analysis of a medical image or applied to analysis of a 3D medical image to analysis of a 2D medical image may be provided.

In addition, since the dental treatment planning method using the registration of the 2D medical image and the 3D medical image according to the embodiment of the present invention establishes the treatment plan using the registration image, the treatment plan is established on the 2D medical image and at the same time. It is possible to provide an integrated process for establishing a treatment plan on a 3D medical image.

In addition, a treatment device such as an orthodontic device, an indirect attachment tray, a maxillary surgery wafer, dentures, etc. may be designed according to the established treatment plan.

In addition, the dental treatment planning method using the registration of the 2D medical image and the 3D medical image according to the embodiment of the present invention performs image analysis, treatment plan establishment, and treatment device design based on the registered image through one integrated process. Therefore, treatment consultation and treatment time can be shortened.

In addition, the number of X-ray and CT scans can be reduced, thereby minimizing the X-ray exposure of the recipient.

On the other hand, the embodiments of the present invention disclosed in the present specification and drawings are merely presented as specific examples to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. That is, it will be apparent to those of ordinary skill in the art to which the present invention pertains that other modified examples can be implemented based on the technical idea of the present invention.

100: dental treatment planning device
110: 2D image capturing unit
120: 3D image capturing unit
130: image conversion unit
140: image matching unit
150: matching error determination unit
160: treatment planning department

Claims (9)

a two-dimensional image capturing unit generating a two-dimensional medical image in which photographing distortion is generated by photographing a subject;
a three-dimensional image capturing unit for generating a three-dimensional medical image in which photographing distortion is corrected by photographing the subject;
an image conversion unit generating a transformed image by projecting the 3D medical image, and projecting the 3D medical image so that the transformed image has the same photographing distortion as the 2D medical image to generate the transformed image; and
and an image matching unit configured to generate a registered image by registering the transformed image with one region of the two-dimensional medical image,
The image conversion unit
The converted image is identical to the 2D medical image by adjusting at least one of a position of a first image detector detecting the transformed image, and a position and an angle of a viewing camera that projects the 3D medical image to the first image detector to have shooting distortion,
A dental treatment planning apparatus using the registration of the 2D medical image and the 3D medical image to regenerate the transformed image until the matching tolerance between the 2D medical image and the transformed image is less than a reference value.
The method of claim 1,
A treatment planning unit that provides an interface so that the operator can perform at least one of image analysis, treatment plan establishment, and treatment device design of the recipient by using the matched image
Dental treatment planning apparatus using the registration of the 2D medical image and the 3D medical image further comprising a.
The method of claim 1,
The two-dimensional image capturing unit,
an X-ray source for irradiating X-rays to the subject; and
and a second image detector configured to detect the two-dimensional medical image by projecting the subject by the X-ray irradiation
A dental treatment planning device using the registration of a 2D medical image and a 3D medical image.
The method of claim 1,
Further comprising a matching error determining unit for determining a matching tolerance between the two-dimensional medical image and the transformed image
A dental treatment planning device using the registration of a 2D medical image and a 3D medical image.
The method of claim 1,
The two-dimensional medical image is
Including frontal and lateral two-dimensional medical images
A dental treatment planning device using the registration of a 2D medical image and a 3D medical image.
6. The method of claim 5,
Landmarks respectively displayed in areas other than the one area of the front and side 2D medical images are applied to the 3D medical image to form two landmark lines, and the intersection of the two landmark lines is defined as the 3 Further comprising a landmark display unit displayed on the dimensional medical image
A dental treatment planning device using the registration of a 2D medical image and a 3D medical image.
generating a two-dimensional medical image in which photographing distortion is generated by photographing the subject;
generating a three-dimensional medical image in which photographing distortion is corrected by photographing the subject;
generating a transformed image by projecting the 3D medical image, projecting the 3D medical image so that the transformed image has the same photographing distortion as the 2D medical image to generate the transformed image; and
generating a registered image by registering the transformed image with one region of the two-dimensional medical image;
The step of generating the converted image is
The converted image is identical to the 2D medical image by adjusting at least one of a position of a first image detector detecting the transformed image, and a position and an angle of a viewing camera that projects the 3D medical image to the first image detector to have shooting distortion,
Regenerating the transformed image until the matching tolerance between the 2D medical image and the transformed image is less than a reference value
A dental treatment planning method using registration of a 2D medical image and a 3D medical image.
8. The method of claim 7,
performing at least one of image analysis, treatment plan establishment, and treatment device design of the subject by using the matched image by the operator
A dental treatment planning method using registration of a two-dimensional medical image and a three-dimensional medical image further comprising a.
8. The method of claim 7,
Further comprising the step of determining a registration tolerance of the 2D medical image and the transformed image
A dental treatment planning method using registration of a 2D medical image and a 3D medical image.

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