KR20210047835A - 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 dental treatment planning apparatus and method using image matching, wherein the apparatus comprises: a 2D image photographing unit for generating a 2D medical image by photographing the head of a person to be treated; a 3D image photographing unit for generating a 3D medical image by photographing a teeth region of the person to be treated; an image conversion unit for generating a converted image by adjusting and projecting a viewing camera on the 3D medical image to match photographing conditions of the 2D medical image; and an image matching unit for generating a matched image by matching the converted image to a region of the 2D medical image.

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 thereof, 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 CT (Computed Tomography) 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 photographs not only the patient's teeth but also the patient's head. On the other hand, large-area CT imaging devices are relatively expensive, so they are generally provided only in large hospitals.

Therefore, in most small hospitals, taking into account the cost aspect, using a small-area CT imaging device that covers a relatively small field of view, only the patient's tooth area is photographed to establish a treatment plan for the operator.

Accordingly, the present invention proposes a method of matching the 3D medical image generated by the CT imaging apparatus photographing the patient's tooth area with the 2D medical image generated by the Ceph (cephalometrics) imaging device photographing the head of the person to be treated. .

However, since the 2D medical image generated by the Ceph (cephalometrics) imaging apparatus photographing the head of the subject to be treated is an image generated by photographing the head of the subject between the X-ray source and the image detector, photographing distortion occurs. On the other hand, since the 3D medical image captured by the CT imaging device is reconstructed by correcting the imaging distortion by the CT imaging device itself, the imaging distortion does not occur theoretically.

Therefore, it is difficult to match a 2D medical image in which photographing distortion has occurred and a 3D medical image in which photographing distortion has been 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 the analysis information of a 3D medical image to an analysis of a 2D medical image.

In addition, an object of the present invention is to provide an integrated process capable of establishing a treatment plan on a 2D medical image and at the same time establishing a treatment plan on a 3D medical image.

In order to solve the above-described problems, the present invention provides a two-dimensional image photographing unit for photographing a person to be treated and generating a two-dimensional medical image, a three-dimensional image photographing unit for photographing a subject to generate a three-dimensional medical image, and a three-dimensional medical treatment An image conversion unit that adjusts and projects a viewing camera on an image to generate a transformed image having the same shooting distortion as a 2D medical image, and an image registration that creates a matched image by matching the transformed image to a region of the 2D medical image. It provides a dental treatment planning apparatus using registration of a 2D medical image including a unit and a 3D medical image.

In addition, it may further include 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 subject by using the matched image.

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

In addition, the image conversion unit may include a first image detection unit that detects a converted image by projecting a 3D medical image, and a viewing camera that projects the 3D medical image to the first image detection unit.

In addition, the image conversion unit may adjust and repeatedly converge at least one of the position and angle of the viewing camera, the position of the first image detection unit, the position of the 3D medical image, and the viewing angle to match the shooting condition of the 2D medical image.

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

In addition, a matching error determination unit may be further included to determine a matching tolerance between the 2D medical image and the transformed image.

In addition, if the matching tolerance is greater than or equal to the reference value, the image conversion unit may regenerate the converted image by adjusting and projecting the viewing camera on the 3D medical image. In addition, the 2D medical image includes front and side 2D medical images. I 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 a 3D medical image. It may further include a landmark display unit to be displayed on.

In addition, the steps of generating a 2D medical image by photographing the person to be treated, generating a 3D medical image by photographing the person to be treated, and generating a transformed image by photographing a 3D medical image under the conditions of the 2D medical image. It provides a dental treatment planning method using registration of a 2D medical image and a 3D medical image including the steps of and generating a registration image by matching a transformed image to a region of the 2D medical image.

In addition, 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 the operator using the matched image.

In addition, the step of determining a matching tolerance between the 2D medical image and the transformed image may be further included.

According to the present invention, since image analysis is performed using a matched image, the analysis information of the 2D medical image may be applied to the analysis of the 3D medical image or the analysis information of the 3D medical image may be applied to the analysis of the 2D medical image. There is an effect that can provide an integrated process that can be done.

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 setting a treatment plan on a 3D medical image. There is.

In addition, treatment devices such as orthodontic devices, indirect attachment trays, shake wafers, dentures, and the like may be designed according to the established treatment plan.

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

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

1 is a block diagram of a dental treatment planning apparatus using image registration according to an embodiment of the present invention.
2 is a block diagram of a 2D image capturing unit of FIG. 1.
FIG. 3 is an exemplary diagram of a 2D medical image generated by the 2D image capturing unit 110 of FIG. 1 by photographing a person to be treated.
4 is an exemplary diagram of a 3D medical image generated by the 3D image capturing unit 120 by photographing a person to be treated.
5 is a detailed block diagram of an image conversion unit of FIG. 1.
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 plan unit 160 of FIG. 1.
FIG. 8 is a diagram for explaining a landmark display method of the landmark display unit of FIG. 7.
9(a) and 9(b) are diagrams illustrating landmarks displayed by the landmark display unit of FIG. 7 on a matched image.
10 is a flowchart of a dental treatment planning method using image registration according to an embodiment of the present invention.

Hereinafter, exemplary 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 possible. In addition, detailed descriptions of known functions and configurations that may obscure the subject matter 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 a 2D image capturing unit of FIG. 1.

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

The 2D image capturing unit 110 generates a 2D medical image by photographing a person to be treated under a specific photographing condition. Here, the 2D image capturing unit 110 may be a Ceph (cephalometrics) photographing device, but the present invention is not limited thereto, and a device capable of generating a 2D image by photographing a subject to be treated is sufficient.

Specifically, as shown in FIG. 2, the two-dimensional image capturing unit 110 includes an X-ray source 111 that irradiates an X-ray to a person to be treated (for example, the head) and a person to be treated (for example, the head) by X-ray irradiation. ) May be projected to include a second image detection unit 112 that detects a 2D medical image.

FIG. 3 is an exemplary diagram of a 2D medical image generated by the 2D image capture unit 110 of FIG. 1 by photographing a person to be treated, and FIG. 4 is a 3D image generated by the 3D image capture unit 120 by photographing a person to be treated. 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 head of the person to be treated (a), and photographs the front of the head of the person to be treated to create a front 2D medical image. Can be created.

In addition, as shown in FIG. 4, the 3D image capturing unit 120 generates a 3D medical image by capturing a tooth area of a person to be treated. Here, the 3D imaging unit 120 may be a CT (Computed Tomography) imaging device, but is not limited thereto, and any device capable of generating a 3D image by photographing a person to be treated is sufficient.

On the other hand, a large-area CT imaging device that covers a relatively wide field of view (FOV) creates a 3D head image by photographing not only the patient's teeth but also the patient's head, but it is relatively expensive, so it is only available in large hospitals. It is common.

The 3D image capture unit 120 according to an embodiment of the present invention generates a 3D medical image by photographing a tooth area of a person to be treated using a small area CT imaging device covering a relatively narrow field of view (FOV). By matching this to the 2D medical image generated by the 2D 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, since the 2D medical image generated by the 2D image capture unit 110 is an image generated by photographing a person to be treated between the X-ray source 111 and the second image detection unit 112 as described above, Shooting distortion occurs. However, since the 3D medical image captured by the 3D image capturing unit 120 is reconstructed by correcting and reconstructing the capturing distortion by the 3D image capturing unit 120 itself, the capturing distortion does not occur theoretically. Therefore, it is difficult to match a 2D medical image in which photographic distortion has occurred and a 3D medical image in which photographic distortion has been corrected.

In order to solve such a problem, the image conversion unit 130 according to an embodiment of the present invention estimates a 2D medical image capturing condition using a viewing camera, and generates a converted image by projecting a 3D medical image, This transformed image is matched to a 2D medical image.

5 is a detailed block diagram of an image conversion unit of FIG. 1.

Specifically, as shown in FIG. 5, the image conversion unit 130 includes a first image detection unit 132 that detects a converted image by projecting a 3D medical image, and a first image detection unit 132 that detects a 3D medical image. ) May be configured to include a viewing camera 131 to be projected on.

The image conversion unit 130 is a two-dimensional image capturing unit through the operation of the viewing camera to obtain the distance information between the X-ray source 111, the subject, and the second image detection unit 112 when the 2D image capturing unit 110 photographs the subject. It can meet the shooting conditions of (110).

In addition, 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 meet the conditions for capturing the head of the person to be treated.

Specifically, the image conversion unit 130 includes 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 2D image capturing unit 110 captures the head of the subject. By positioning ), the transformed image detected by the first image detector 132 may be matched with a photographing condition for 2D medical image capturing.

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 matched image by matching the transformed image to a region of the 2D medical image. Here, the registration 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 person to be treated, and a 2D medical image is disposed in the other areas.

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

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

Referring to FIG. 3, a 2D medical image captured and 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, centering on the front 2D medical image and the side 2D medical image.

The treatment planning unit 160 may provide a user interface so that a practitioner may perform at least one of image analysis of a subject, establishment of a treatment plan, and design of a treatment device using a matched image. Here, the treatment planning unit 160 may receive a 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 matching error determination unit 150 are formed as one module and provided in the treatment planning unit 160, or the 2D and 3D image capturing unit 110, 120) may be provided, and differently, may be provided as separate modules. In addition, each component may exchange image data through communication.

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

Specifically, as shown in FIG. 7, the treatment plan 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 a practitioner who wishes to perform the treatment, 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 capture units 110 and 120 and a main server (not shown). Here, the treatment plan unit 160 may transmit the image data and the treatment plan to the external device through the main server. To this end, the treatment planning unit 160 includes fifth generation mobile telecommunication (5G), long term evolution-advanced (LTE-A), long term evolution (LTE), wideband code division multiple access (WCDMA), and wireless fidelity (wifi). Wireless communication such as can be performed. In addition, the treatment planning unit 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. Includes (menu button), etc.

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

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 an application for performing image analysis treatment plan establishment and treatment device design for the patient, or access address of a web page, etc. Etc. can be stored.

In addition, the memory 164 stores image data for a person to be treated and a treatment plan established in connection with the image data. Here, the image data may be 2D image data such as a Ceph, which is a pixel type image, an image of a Panorama type, an image acquired from an IO sensor, an image acquired through X-ray, and the like, a volume type image, and a Voxel type image. It may be 3D image data such as an image, an image acquired through a CT scan, an image acquired through an MRI scan, an image acquired through an ultrasound scan, etc., and the matched image data in which the 2D image data and the 3D image data are matched. Can be

FIG. 8 is a diagram for explaining a method of displaying a landmark by the landmark display unit of FIG. 7, and FIGS. 9(a) and 9(b) illustrate landmarks displayed by the landmark display unit of FIG. 7 on a matched image. It is a drawing.

Referring to FIGS. 8 and 9, the landmark display unit 165 applies a landmark displayed on an area other than a tooth of a front and side 2D medical image to a 3D medical image, respectively, to provide two landmarks. A line is formed, and the intersection of two landmark lines is displayed on a 3D medical image. Here, a landmark is a specific point necessary for image analysis.

The image analysis unit 166 generates an analysis result by comparing the landmark displayed in the matched image with an average normal value of the sex and age of the patient to be treated.

In the dental treatment planning apparatus using image registration according to an embodiment of the present invention, since image analysis is performed using the registration image, the analysis information of the 2D medical image is applied to the analysis of the 3D medical image. An integrated process that can apply the analysis information to the analysis of 2D medical images can 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).

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

The treatment device design unit 168 may design a treatment device, such as an orthodontic device, an indirect attachment tray, a handshake wafer, a denture, and the like, according to a 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 shorten treatment consultation and treatment time because image analysis, treatment plan establishment, and treatment device design are performed through one integrated process based on the registration image. have.

In addition, it is possible to reduce the number of X-rays and CT scans, thereby minimizing 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 a setup signal for establishing a treatment plan for a person to be treated is received from the input unit 161 do.

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

The interface unit 163 properly 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. Let's do it.

When a call signal for calling image data for a person to be treated 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 person to be treated is called and displayed on the main screen. In this case, the call signal may include the name of the person to be treated or the patient number.

In addition, in the embodiment of the present invention, it is described that image data is stored in the memory 164, but the present invention is not limited thereto, and the image data may be stored in the main server. In this way, 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 analyze the image, establish a treatment plan, and design a treatment device.

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

Hereinafter, a method of planning a dental treatment using matching of a 2D medical image and a 3D medical image according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10, but the 2D medical treatment according to the embodiment of the present invention described above. The same contents as the dental treatment planning apparatus using the registration of images and 3D medical images will be omitted.

A dental treatment planning method using matching of a 2D medical image and a 3D medical image according to an embodiment of the present invention includes generating a 2D medical image (S10) and generating a 3D medical image (S20). Wow, generating a transformed image (S30), generating a matched image (S40), determining a matching tolerance (S50), and establishing a treatment plan using the matched image (S60). It can be configured to include.

First, the 2D image capturing unit 110 generates a 2D medical image by photographing a person to be treated under a specific photographing condition (S10).

Specifically, when the X-ray source 111 irradiates X-rays onto the head of the subject, the second image detector 112 projects the head of the subject to generate a 2D medical image.

Next, the 3D image capturing unit 120 photographs the person to be treated under the conditions for capturing the 2D medical image to generate a 3D medical image (S20).

The 3D image capture unit 120 according to an embodiment of the present invention generates a 3D medical image by photographing a tooth area of a person to be treated using a small area CT imaging device covering a relatively narrow field of view (FOV). By matching this to the 2D medical image generated by the 2D 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 conversion unit 130 generates a transformed image by projecting a 3D medical image to meet the photographing condition of the 2D medical image (S30).

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

As described above, since the converted image has a photographic distortion that meets the photographing conditions of the 2D medical image, it is relatively easy to match the 2D medical image and the 3D medical image.

Next, the image matching unit generates a matching image by matching the transformed image to a region of the 2D medical image (S40). Here, the registration 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 person to be treated, and a 2D medical image is disposed in the other areas.

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

Here, the image conversion unit 130 adjusts the positions of the first image detection unit 132 and the viewing camera 131 with respect to the 3D medical image when the matching tolerance determined by the matching error determination unit 150 is greater than or equal to the reference value. Then, the converted image may be regenerated by projecting it (S30). This process can be repeatedly performed until the matching tolerance is less than the reference value. That is, the image conversion unit 130 matches the transformed image to the 2D medical image through an iterative convergence matching method based on the 2D medical image.

Next, when the matching tolerance determined by the matching error determination unit 150 is less than the reference value, the operator performs at least one of image analysis of the subject, establishing a treatment plan, and designing a treatment device using the matching image (S60).

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

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 establishes a treatment plan using the registration image, so that the treatment plan is established on the 2D medical image and at the same time. It can provide an integrated process to establish a treatment plan for 3D medical images.

In addition, treatment devices such as orthodontic devices, indirect attachment trays, handshake wafers, dentures, and the like may be designed according to the established treatment plan.

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

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

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are only provided specific examples to easily explain the technical content of the present invention and to aid understanding of the present invention, and are not intended to limit the scope of the present invention. That is, that other modified examples based on the technical idea of the present invention can be implemented is obvious to those of ordinary skill in the technical field to which the present invention pertains.

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

Claims (9)

A two-dimensional image photographing unit that photographs a person to be treated and generates a two-dimensional medical image in which photographing distortion is generated;
A 3D image capturing unit that photographs the person to be treated and generates a 3D medical image in which the photographing distortion is corrected;
An image conversion unit generating a transformed image by projecting the 3D medical image, and generating the transformed image by projecting the 3D medical image so that the transformed image has the same photographic distortion as the 2D medical image; And
An image matching unit for generating a matched image by matching the transformed image to a region of the 2D medical image,
The image conversion unit
The converted image is the same as the 2D medical image by adjusting at least one of a position of the first image detector detecting the converted image and a position and an angle of a viewing camera that projects the 3D medical image to the first image detector. Try to have the shooting distortion,
A dental treatment planning apparatus using matching of a 2D medical image and a 3D medical image to regenerate the converted image until a matching tolerance between the 2D medical image and the converted image is less than a reference value.
The method of claim 1,
A treatment planning unit that provides an interface so that a practitioner can perform at least one of image analysis, treatment plan establishment, and treatment device design of the subject 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 capture 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 person to be treated by the X-ray irradiation.
A dental treatment planning device using the registration of 2D medical images and 3D medical images.
The method of claim 1,
Further comprising a matching error determination unit for determining a matching tolerance error between the 2D medical image and the transformed image.
A dental treatment planning device using the registration of 2D medical images and 3D medical images.
The method of claim 1,
The 2D medical image is
Including front and side 2D medical images
A dental treatment planning device using the registration of 2D medical images and 3D medical images.
The method of claim 5,
Two landmark lines are formed by applying landmarks respectively displayed in regions other than the one region of the front and side 2D medical images to the 3D medical image, and the intersection of the two landmark lines is 3 Further comprising a landmark display to display on the dimensional medical image
A dental treatment planning device using the registration of 2D medical images and 3D medical images.
Generating a 2D medical image in which photographing distortion is generated by photographing a person to be treated;
Generating a 3D medical image in which photographing distortion is corrected by photographing the person to be treated;
Generating a transformed image by projecting the 3D medical image, and generating the transformed image by projecting the 3D medical image so that the transformed image has the same photographic distortion as the 2D medical image; And
And generating a matched image by matching the transformed image to a region of the 2D medical image,
Generating the transformed image
The converted image is the same as the 2D medical image by adjusting at least one of a position of the first image detector detecting the converted image and a position and an angle of a viewing camera that projects the 3D medical image to the first image detector. Try to have the shooting distortion,
Regenerating the transformed image until a matching tolerance between the 2D medical image and the transformed image is less than a reference value
Dental treatment planning method using the registration of 2D medical images and 3D medical images.
The method of claim 7,
Performing at least one of image analysis, treatment plan establishment, and treatment device design by the operator using the matched image
Dental treatment planning method using the registration of the 2D medical image and the 3D medical image further comprising a.
The method of claim 7,
Further comprising determining a matching tolerance error between the 2D medical image and the transformed image
Dental treatment planning method using the registration of 2D medical images and 3D medical images.

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