WO2022039395A1

WO2022039395A1 - Manipulator selection method and dental image processing device therefor

Info

Publication number: WO2022039395A1
Application number: PCT/KR2021/009483
Authority: WO
Inventors: 최규옥; 조성업; 전범재
Original assignee: 오스템임플란트 주식회사
Priority date: 2020-08-18
Filing date: 2021-07-22
Publication date: 2022-02-24
Also published as: KR102431052B1; KR20220022522A; KR102431052B9

Abstract

Disclosed are a manipulator selection method and a dental image processing device therefor. In a manipulator selection method according to an embodiment, when selecting a manipulator, an optimal manipulator satisfying a preset selection condition is recommended by being previewed as a selection candidate on a screen, thereby reducing the inconvenience of a user having to find and select the precise manipulator.

Description

Manipulator selection method and dental image processing device therefor

The present invention relates to a dental image processing technology, and more particularly, to a technology for modifying a model object on a screen.

Dental imaging software is software that performs all tasks related to designing objects necessary for dental treatment. A treatment plan can be established by using dental image software, and when establishing a treatment plan, an object displayed on a dental image can be corrected. In this case, a situation in which a user has to select a desired object from among various objects on the screen using a mouse or the like frequently occurs in order to perform a correction operation. However, when many objects are clustered in a narrow area of the screen, a lot of inconvenience occurs in the process of selecting a desired object by the user, and there is a risk that the accuracy may be reduced.

According to an embodiment, a method for selecting a manipulator capable of solving and improving the inconvenience and accuracy problems of the object selection process in the process of establishing a treatment plan through dental imaging software and a dental image processing apparatus for the same are proposed.

A manipulator selection method according to an embodiment includes displaying on a screen at least one manipulator for modifying a model object that is designed to be superimposed on a dental image, and a user who brings a mouse cursor closer to a manipulator that the user wants to select on the screen Detecting the current position of the mouse cursor moving on the screen based on the motion, setting a search area based on the detected current position of the mouse cursor, and a manipulator meeting a preset selection condition within the set search area and recommending the manipulator in such a way that the searched manipulator is displayed in advance on a screen as a selection candidate.

The manipulator may include at least one of an interface for position movement, size transformation, rotation, free movement, free rotation, micro-movement, micro-rotation, length adjustment, and diameter adjustment in the axial direction preset for the model object in 3D space. there is.

The method for selecting a manipulator may further include selecting a manipulator based on a user's selection action for a selection candidate recommended at a current position of the mouse cursor.

The manipulator selection method includes the steps of determining that the user does not select the recommended selection candidate if a predetermined motion other than the user's selection motion is detected with respect to the recommended selection candidate after recommending the manipulator; The method may further include searching for a new manipulator that satisfies the selection condition based on the new current location, and previewing the searched new manipulator as a selection candidate on the screen.

In the step of setting the search area, an area within a preset range centered on the current position of the mouse cursor may be set as the search area.

The manipulator that meets the preset selection condition is the manipulator closest to the current position of the mouse cursor among the manipulators in the search area. It can be recommended as a first choice candidate.

In the step of recommending the manipulator, when the selection candidate is shown in advance, it can be displayed by dividing it into identifiable visual information.

The method for selecting a manipulator may further include magnifying a screen or changing a view direction for the user to select the manipulator.

A method for selecting a manipulator according to another embodiment includes displaying a manipulator on a screen for modifying a model object that is designed to be superimposed on a dental image, and a mouse cursor based on a user motion of a user approaching the mouse cursor with the manipulator on the screen. The steps of detecting the current position of and recommending a manipulator in such a way that it is determined whether is the same as the manipulator to which the mouse cursor is approached, and if not, the newly searched manipulator is displayed on the screen.

The manipulator selection method may further include, if the searched manipulator is the same as the manipulator to which the user approaches the mouse cursor, classifying and displaying the manipulator with the mouse cursor as identifiable visual information or activating a manipulator function.

A dental image processing apparatus according to another embodiment includes an output unit for displaying on a screen manipulators for modifying a model object that is designed to be superimposed on a dental image, and a user action of bringing a mouse cursor closer to a manipulator that the user wants to select on the screen an input unit that receives a user manipulation signal according to and a controller for recommending a manipulator by searching for a manipulator that satisfies the set selection condition and displaying the searched manipulator as a selection candidate in advance on the screen through an output unit.

The control unit may select the manipulator based on the user's selection operation for the selection candidate recommended at the current position of the mouse cursor.

The controller may recommend a manipulator closest to the current position of the mouse cursor among manipulators in the search area as a top-most selection candidate.

A dental image processing apparatus according to another embodiment includes an output unit for displaying on a screen a manipulator for modifying a model object that is designed to be superimposed on a dental image, and a user according to a user action in which the user approaches the mouse cursor with the manipulator on the screen an input unit for receiving a manipulation signal; detecting the current position of the mouse cursor based on a user manipulation signal input through the input unit; setting a search area based on the detected current position of the mouse cursor; and a control unit that searches for a manipulator that meets the set selection condition, determines whether the searched manipulator is the same as the manipulator to which the user approaches the mouse cursor, and, if not identical, recommends the manipulator by displaying the newly searched manipulator on the screen.

According to a method for selecting a manipulator and a dental image processing apparatus for the same according to an embodiment, when a user needs to select a manipulator for modifying a model object that is designed to be superimposed on a dental image in the process of establishing a treatment plan in dental image software, the user uses a mouse Moving the cursor to the correct position on the manipulator eliminates the need to select.

For example, when the user moves the mouse to a manipulator that is determined to be a manipulator for manipulation, preset selection conditions within the search area based on the current position of the mouse cursor (for example, based on the current position of the mouse cursor) The manipulator that matches the nearest manipulator) is automatically searched internally by the software, and then the searched manipulator is displayed in advance on the screen. Accordingly, the user does not need to find the correct manipulator by moving the mouse additionally, check the recommended manipulator on the current screen, select the correct manipulator by clicking the mouse at the current mouse position, and proceed with the next operation. there will be This method has the following two advantages.

First, the user can easily select the correct manipulator based on the current position of the mouse cursor regardless of the size of the manipulator displayed on the screen. At this time, the number of tasks such as zoom-in of the screen or setting the camera direction is reduced. In particular, in the process of selecting a manipulator displayed on the screen in the form of a line, usability and convenience can be greatly improved.

Second, the software automatically analyzes and finds the closest manipulator within the search area based on the current position of the mouse cursor, so even if many graphical user interfaces (GUIs) are clustered in a narrow area, the user moves the mouse cursor over the desired GUI. There is no need to move and position the , simply moving the mouse to find the approximate location where the desired GUI is selected and activated. In addition, it is possible to obtain the effect of greatly improving usability and convenience in the manipulator setting work process.

1 to 3 are views showing a model object modification screen using a manipulator according to an embodiment of the present invention;

4 is a view showing the configuration of a dental image processing apparatus according to an embodiment of the present invention;

5 is a diagram illustrating a flow of a method for selecting a manipulator according to an embodiment of the present invention;

6 is a diagram illustrating a flow of a method for selecting a manipulator according to another embodiment of the present invention;

7 is a diagram illustrating a screen for setting a search area and selecting a manipulator within the set search area according to an embodiment of the present invention.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only established by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted, and the terms to be described later are used in the embodiment of the present invention. These terms are set in consideration of the function of the user, and may vary depending on the intention or custom of the user or operator. Therefore, the setting should be made based on the contents throughout this specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments of the present invention illustrated below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art to which the present invention pertains.

1 to 3 are diagrams illustrating a model object modification screen using a manipulator according to an embodiment of the present invention.

In more detail, FIG. 1 illustrates a model object rotation screen using a manipulator, FIG. 2 illustrates a model object size conversion screen using a manipulator, and FIG. 3 illustrates an example of a manipulator.

1 to 3 , the dental imaging software displays the model object 1 and the manipulator together on the screen. The model object 1 is model data designed to be virtually superimposed on a dental image, and may be, for example, a tooth model, a fixture model, or a prosthesis model. The prosthesis model includes a crown, an inlay, an onlay, a coping, and a pontic. 1 to 3 show a tooth model.

The manipulator is a virtual graphical user interface (GUI, hereinafter referred to as 'GUI') displayed on the screen to facilitate user manipulation for modifying the model object 1, and is located around the model object 1 is displayed At this time, 'correction' is a concept that includes all corrections of the position, size, orientation, rotation, length, diameter, etc., of the model object (1). used For example, the manipulator includes a rotation manipulator 10 , a position movement manipulator 12 , a size change manipulator 14 , a length adjustment manipulator, a diameter adjustment manipulator, and the like.

As shown in FIGS. 1 and 2 , the manipulator may be a GUI for respectively modifying the model object 1 in the ± directions of preset axes (eg, X, Y, and Z axes). However, it is possible not only to have a fixed axis, but also to freely modify it without a fixed axis limitation. For example, free rotation and free movement are possible, and it is also possible to precisely modify such as fine movement and fine rotation. The micro-movement manipulator is a user interface displayed on the screen to micro-move the fixture vertically or horizontally in parallel. The micro-rotation manipulator is a user interface displayed on the screen for micro-rotation of the model object 1 . The length adjustment manipulator is a user interface for adjusting the length of the model object 1 . The diameter adjustment manipulator is a user interface for adjusting the diameter of the model object 1 . The free movement manipulator is a user interface for freely moving the model object 1 . The free rotation manipulator is a user interface for freely rotating the model object 1 .

Furthermore, the manipulator further includes an interface for guiding the rotation with a circle or sphere-shaped outline when rotating as shown in FIG. 1, and an interface for guiding the size transformation with a hexahedral outline when changing the size as shown in FIG. 2, etc. may include 1 and 2 illustrate a method of position movement, size conversion, and rotation in 6 directions (± X, ± Y, ± Z) in a three-dimensional space.

The manipulator may be expressed in any form to facilitate user's modification, and may be displayed on the screen in the form of an arrow, a cylinder, a straight line, a handle, a circle, and the like. For example, as shown in FIG. 3 , the rotation manipulator 10 may be represented by a rotation handle 100 and a rotation arrow 102 , and the position movement manipulator 12 is positioned It may be expressed as a translation arrow, and the scaling manipulator 14 may be expressed as a scaling handle.

Since there are various manipulators for modifying the model object 1 as described above, we propose a method in which a user can easily select a desired manipulator among them.

A general method for selecting a manipulator is to output a model object and manipulators to the screen, select (eg, click) a desired manipulator using a mouse, and then modify the model object using the selected manipulator. The general method described above can be organized into sequential continuous operations as follows.

1. The model object to be modified using the manipulator and the corresponding manipulator are displayed on the screen.

2. Visually check the manipulator corresponding to the model object to be modified by the user. In this case, the user can adjust the camera view direction or the size of the model in the screen as needed.

3. The user moves the mouse cursor over the manipulator.

4. After positioning the mouse cursor accurately on the manipulator, click the mouse at the moved position to select the manipulator, and check the selection result displayed on the screen.

5. If the manipulator desired by the user is not selected correctly, repeat from step 2.

6. If the desired manipulator is correctly selected, use the mouse drag action to modify the model object.

1 to 3 , it may be a very difficult and inconvenient task for the user to accurately click the manipulator with the mouse. For example, if the GUI representing the manipulator is expressed very small or very thin on the screen, it is difficult to perform an accurate selection operation, and additionally, it is necessary to perform additional operations such as magnifying the screen and changing the camera view direction. It is not easy to accurately select a manipulator expressed as

In order to solve the above problems, the present invention provides a method for quickly and easily selecting a manipulator without the process of moving the mouse to an exact position in pixels, magnifying the screen, changing the camera view direction, etc. in the process of selecting the GUI representing the manipulator. suggest

4 is a diagram illustrating a configuration of a dental image processing apparatus according to an embodiment of the present invention.

Referring to FIG. 4 , the dental image processing apparatus 4 executes software for dental image processing. For example, the software includes prosthesis design software, guide software, scanning software, and the like. In addition, it can be applied to other general medical software other than for dental surgery. Dental surgery may include prosthetic surgery, implant surgery, and the like. The prosthesis design software performs the CAD process to help prosthetic teeth in actual dentistry. The prosthetic CAD process refers to a series of processes in which dental data of a patient is acquired, a virtual prosthesis model is retrieved from a library through control by a computer program, and then is virtually placed at a target position of the dental model. The tooth model is data having two-dimensional and three-dimensional information on teeth including damaged target teeth.

The dental image processing apparatus 4 is an electronic device capable of executing dental image software, and includes a personal computer (PC), a notebook computer, a tablet, a smart phone, a mobile phone, and the like.

Referring to FIG. 4 , the dental image processing apparatus 4 according to an embodiment includes a data acquisition unit 40 , a storage unit 42 , a control unit 44 , an input unit 46 , and an output unit 48 . .

The data acquisition unit 40 acquires image data from a patient. Image data necessary for establishing a treatment plan using dental images include CT data and oral model data. The data acquisition unit 40 may execute the CT data and the oral model data in software or load data stored in a web page and a server.

The oral model data is data having information on actual teeth including damaged teeth. Oral model data is dental model scan data obtained by scanning a plaster model created by imitating a patient's mouth with a 3D scanner, or an impression created by imitating a patient's mouth by scanning a 3D scanner. It may be impression body scan data acquired, or oral scan data acquired by scanning the inside of the patient's oral cavity using a 3D intra-oral scanner. The acquired oral model data may be stored in the storage 42 .

Various data such as information necessary for performing an operation of the dental image processing apparatus 4 and information generated according to the operation are stored in the storage unit 42 . The storage unit 42 according to an embodiment stores the oral model data and CT data of an individual patient, and requests the user to request the oral model data and CT data of a specific patient from among the entire oral model data and CT data during dental treatment simulation. may be provided to the control unit 44 according to the At this time, the storage unit 42 stores the image of the upper and lower teeth of the individual patient, and the image of the upper and lower teeth matching the oral model data and CT data of a specific patient according to a user's request. It may be provided to the control unit 44 . In addition, the storage unit 42 may have a tooth model library composed of a plurality of tooth models, and provide it to the control unit 44 .

The control unit 44 controls each component while establishing a surgical plan through control by computer software. The control unit 44 manages screen information displayed on the screen through the output unit 48, and performs a simulation of designing and placing a virtual model object to be implanted in a dental image. A dental image in which a virtual model object is implanted means a two-dimensional, three-dimensional, etc. multidimensional image in which a patient's tooth arrangement is generated for establishing a dental surgery plan. Various types of images, such as X-ray, CT, panoramic image, scan image, image generated through reconstruction, and image obtained by registering multiple images, can be used for dental surgery planning.

The controller 44 according to an embodiment sets a manipulator for modifying the model object. The control unit 44 proposes a method for allowing a user to select a manipulator easily and accurately. For example, the controller 44 detects the current position of the mouse cursor moving on the screen based on a user motion of moving the mouse to the manipulator that the user wants to select on the screen, and searches based on the detected current position of the mouse cursor. A manipulator is recommended by searching for a manipulator that satisfies a preset selection condition within the area and displaying the searched manipulator as a selection candidate in advance on the screen through the output unit 48 . At this time, if the recommended manipulator matches the manipulator the user wants to select, the user can click the mouse at the current position of the mouse cursor without the trouble of moving the mouse to the correct position, without further mouse movement. The correct manipulator can be selected. By using this method, the user can create and edit manipulators easier, faster, and more efficiently than using the existing method.

The input unit 46 receives a user manipulation signal. For example, a user manipulation signal for selecting a manipulator may be input on the screen. In addition, a user manipulation signal for moving the position of the mouse cursor on the screen may be input. The user manipulation signal may be input by a user action through a pointing device, and the pointing device includes all input devices such as a mouse, a keyboard pen, and a touch screen. Examples of the user operation include an operation in which a user moves a mouse cursor on a screen using a mouse, an operation in which a user selects a predetermined manipulator on the screen through a pen or a touch on a touch screen type screen, and the like.

5 is a diagram illustrating a flow of a method for selecting a manipulator according to an embodiment of the present invention.

4 and 5 , the dental image processing apparatus 4 displays a manipulator for modifying a model object designed to be superimposed on a dental image on the screen (S51). Next, the dental image processing apparatus 4 detects the current position of the moving mouse cursor on the screen based on the user's motion of moving the mouse cursor to the manipulator to be selected by the user on the screen, ie, approaching (S52).

Then, the dental image processing apparatus 4 sets a search area based on the detected current position of the mouse cursor (S53). The search area is an area formed within a preset distance from the current position of the mouse cursor as a center point. For example, a circle or a sphere having a certain radius based on the current position of the mouse cursor may be defined as the search area.

Next, the dental image processing apparatus 4 searches for a manipulator that meets the preset selection condition within the set search area (S54). The preset selection condition may be a manipulator closest to the current position of the mouse cursor within the search area.

Next, the dental image processing apparatus 4 recommends the manipulator in a manner of showing the searched manipulator as a selection candidate in advance on the screen ( S55 ). In the step of detecting the current position of the mouse cursor (S52), the user visually checks the part determined to be the manipulator to be set and then moves the mouse cursor to the confirmed manipulator part. Before moving, the dental image processing apparatus 4 outputs a manipulator that satisfies the preset selection condition in the search area in the manipulator recommendation step S55 as a selection candidate in a preview format on the screen. At this time, if the selection candidate shown on the screen is the manipulator the user wants to select, there is no need to move the mouse to the corresponding manipulator anymore, and the user selects at the current position of the mouse cursor (for example, clicks the mouse) Select the manipulator through , and check the selection result displayed on the screen. On the other hand, when the selection candidates shown on the screen are not satisfactory, the user may perform a predetermined operation, such as continuing to move to a desired manipulator part, or right-clicking so that the recommended manipulator disappears. At this time, the dental image processing apparatus 4 searches for a new manipulator that meets the selection condition based on the new current position of the mouse cursor being moved by the user's mouse movement motion, and previews the searched new manipulator on the screen as a selection candidate. The process can be repeated.

In the step of recommending the manipulator ( S55 ), when the dental image processing apparatus 4 outputs the selection candidate in a preview format, the selection candidate may be divided into identifiable visual information and displayed. To this end, when a manipulator that meets the preset selection condition in the search area searches, a function or user interface that outputs the search result in a preview format on the screen so that the user can check it should be provided. In this case, as a method of classifying selection candidates into identifiable visual information and displaying them, there is a method of changing and displaying at least one of a color, shape, size, area, thickness, and emphasis of the selection candidate.

6 is a diagram illustrating a flow of a method for selecting a manipulator according to another embodiment of the present invention.

In the manipulator selection method described above with reference to FIG. 5 , while the user moves the mouse to the manipulator to be set on the screen, the dental image processing apparatus 4 searches for a candidate manipulator in advance before the user moves to the corresponding manipulator. This is a method of displaying the searched candidate manipulators as a view method. In contrast, in the manipulator selection method described with reference to FIG. 6 , when an error occurs when the user selects a manipulator to be set on the screen (for example, when the selected manipulator is not the manipulator intended by the user, the selected manipulator is not the optimal manipulator, etc.), the error is corrected and the optimal manipulator is marked as a candidate manipulator.

More specifically, referring to FIGS. 4 and 6 , the dental image processing apparatus 4 displays a manipulator for modifying a model object designed to be superimposed on a dental image on the screen ( S61 ).

Next, the dental image processing apparatus 4 detects the current position of the mouse cursor on the screen based on the user's motion to bring the mouse cursor closer to the manipulator on the screen (S62). In this case, the user action corresponds to an action of selecting a manipulator determined as a manipulator to be selected by the user on the screen by clicking a mouse or the like.

Next, the dental image processing apparatus 4 sets a search area based on the detected current position of the mouse cursor (S63), and searches for a manipulator satisfying a preset selection condition within the set search area (S64). Next, the dental image processing apparatus 4 determines whether the searched manipulator is the same as the manipulator to which the user approaches the mouse cursor (S65). At this time, if they are not the same (S66), the manipulator is recommended in such a way that the newly searched manipulator is displayed on the screen (S67). On the other hand, if the searched manipulator is the same as the manipulator to which the user approaches the mouse cursor (S66), the manipulator to which the user approaches the mouse cursor is classified and displayed as identifiable visual information, or the manipulator function can be activated immediately (S68) .

4 and 7 , when the dental image processing apparatus 4 enters the model object modification screen using the manipulator, a manipulator for modifying the model object 7 is displayed around the model object 7 . In this case, the dental image processing apparatus 4 detects the current position of the mouse cursor 70 moving on the screen based on the user's motion to bring the mouse cursor closer to the manipulator. Then, the search area 72 is set based on the detected current position of the mouse cursor 70 . The search area 72 for manipulator selection can be defined in various methods and forms as needed. For example, an area within a preset range centered on the current position of the mouse cursor 70 may be set as the search area 72 . In FIG. 7 , a circle or a sphere having a predetermined radius based on the current position of the mouse cursor 70 is defined as the search area 72 . However, the shape of the search area 72 may be various, such as a sphere, a circle, a rectangle, a rhombus, and the like.

The dental image processing apparatus 4 searches for a manipulator that meets a preset selection condition within the set search area 72 , and recommends the manipulator by showing the searched manipulator as a selection candidate in advance on the screen. The selection condition setting is a part that defines the characteristic of the most suitable manipulator among the manipulators included in the search area 72 and a formula for searching for it. For example, as shown in FIG. 7 , the dental image processing apparatus 4 recommends a predetermined manipulator 74 within the search area 72 as a selection candidate. In FIG. 7 , one manipulator 74 is located in the search area 72 . However, if a plurality of manipulators are formed in the search area 72 , the manipulator closest to the current position of the mouse cursor 70 is selected from among the plurality of manipulators. can be nominated as candidates.

The dental image processing apparatus 4 may select the final manipulator without further mouse movement based on the user's selection motion for the recommended selection candidate at the current position of the mouse cursor 70, and may activate the manipulator function upon selection. there is. Here, according to the setting, the user may select the final manipulator by moving the mouse cursor to a specific manipulator.

When the dental image processing apparatus 4 outputs the selection candidate in a preview format, it may be displayed by dividing it into identifiable visual information. For example, an appropriate method may be applied, such as changing the color of the selection candidate differently to show it, or increasing the size to show it. 7 illustrates a method for highlighting by changing the color of the manipulator 74, which is a selection candidate recommended by the dental image processing apparatus 4, as an example.

Referring to FIG. 7 , when the user visually confirms the part determined to be the manipulator and brings the mouse cursor 70 closer to the confirmed manipulator part, before the mouse cursor moves to the manipulator part identified by the eye, the dental image processing apparatus (4) recommends the manipulator by outputting the manipulator 74 that meets the preset selection condition in the search area 72 based on the current position of the mouse cursor 70 as a selection candidate in a preview format on the screen.

In this case, if the selection candidate shown on the screen is the manipulator desired by the user, the user no longer needs to move the mouse to the corresponding manipulator, and the user selects a selection action (for example, clicking the mouse) at the current position of the mouse cursor. Select a selection candidate through , and check the selection result displayed on the screen. The dental image processing apparatus 4 may select the manipulator without further mouse movement based on the user's selection motion for the selection candidate recommended at the current mouse cursor 70 position, and may activate the selected manipulator function.

So far, the present invention has been focused on the embodiments thereof. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in modified forms without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is indicated in the claims rather than the foregoing description, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

Claims

In the manipulator selection method using a dental image processing apparatus, the dental image processing apparatus comprises:

Displaying on a screen at least one manipulator for modifying a model object that is designed to be superimposed on a dental image;

detecting a current position of the mouse cursor on the screen based on a user's motion to bring the mouse cursor closer to the manipulator on the screen;

setting a search area based on the current position of the mouse cursor;

searching for a manipulator meeting a preset selection condition within the set search area; and

recommending a manipulator in such a way that the searched manipulator is displayed as a selection candidate in advance on a screen;

A manipulator selection method comprising a.
The method of claim 1, wherein the manipulator is

It characterized in that it comprises at least one of position movement, size transformation, rotation, free movement, free rotation, micro-movement, micro-rotation, length adjustment, and diameter adjustment interface in the axial direction preset for the model object in the three-dimensional space. How to choose a manipulator.
The method of claim 1, wherein the manipulator selection method is

selecting a manipulator based on a user's selection motion for a selection candidate recommended at a current position of the mouse cursor;

Manipulator selection method, characterized in that it further comprises.
The method of claim 1, wherein the manipulator selection method is

determining that the user does not select the recommended selection candidate when a predetermined motion other than the user's selection motion is detected with respect to the recommended selection candidate after the manipulator is recommended; and

searching for a new manipulator that meets a selection condition based on a new current position of the moving mouse cursor, and previewing the searched new manipulator as a selection candidate on the screen;

Manipulator selection method, characterized in that it further comprises.
The method of claim 1, wherein the setting of a search area comprises:

A method for selecting a manipulator, comprising setting an area within a preset range centered on the current position of the mouse cursor as a search area.
The method of claim 1, wherein the manipulator meeting the preset selection condition comprises:

Among the manipulators in the search area, it is the manipulator closest to the current position of the mouse cursor,

The steps to recommend the manipulator are

A method for selecting a manipulator, characterized in that, among manipulators within a search area, a manipulator closest to the current position of the mouse cursor is recommended as a top priority selection candidate.
The method of claim 1, wherein the step of recommending a manipulator comprises:

A method for selecting a manipulator, characterized in that when the selection candidates are shown in advance, they are displayed by dividing them into identifiable visual information.
The method of claim 1, wherein the manipulator selection method is

providing the screen by magnifying or changing the view direction for the user's manipulator selection;

Manipulator selection method, characterized in that it further comprises.
In the manipulator selection method using a dental image processing apparatus, the dental image processing apparatus comprises:

Displaying on the screen a manipulator for modifying a model object that is designed to be superimposed on the dental image;

detecting a current position of the mouse cursor on the screen based on a user's motion to bring the mouse cursor closer to the manipulator on the screen;

setting a search area based on the current position of the mouse cursor;

searching for a manipulator that satisfies a preset selection condition within a set search area; and

determining whether the searched manipulator is the same as the manipulator to which the user approaches the mouse cursor, and if not the same, recommending the manipulator by displaying the newly searched manipulator on the screen;

A manipulator selection method comprising a.
10. The method of claim 9, wherein the manipulator selection method is

If the searched manipulator is the same as the manipulator to which the user approaches the mouse cursor, classifying and displaying the manipulator to which the user approaches the mouse cursor as identifiable visual information or activating a manipulator function;

Manipulator selection method, characterized in that it further comprises.
an output unit for displaying manipulators for modifying a model object that is designed to be superimposed on a dental image on a screen;

an input unit for receiving a user manipulation signal according to a user motion of a user moving a mouse cursor closer to a manipulator on the screen; and

Detects the current position of the mouse cursor based on the user manipulation signal input through the input unit, searches for a manipulator that meets a preset selection condition within a search area set based on the current position of the mouse cursor, and selects the searched manipulator a control unit for recommending a manipulator in such a way that it is displayed in advance on the screen through the output unit;

Dental image processing apparatus comprising a.
The method of claim 11, wherein the control unit

A dental image processing apparatus, characterized in that the manipulator is selected based on the user's selection motion for the selection candidate recommended at the current position of the mouse cursor.
The method of claim 11, wherein the control unit

A dental image processing apparatus, characterized in that, among manipulators in a search area, a manipulator closest to the current position of the mouse cursor is recommended as a top priority selection candidate.
an output unit for displaying a manipulator for modifying a model object designed to be superimposed on a dental image on a screen;

an input unit for receiving a user manipulation signal according to a user motion of a user moving a mouse cursor closer to the manipulator on the screen; and

Detects the current position of the mouse cursor based on a user manipulation signal input through the input unit, sets a search area based on the current position of the mouse cursor, searches for a manipulator that meets preset selection conditions within the set search area, and , a control unit that recommends a manipulator by determining whether the searched manipulator is the same as the manipulator to which the user approaches the mouse cursor, and if not the same, displays the newly searched manipulator on the screen;

Dental image processing apparatus comprising a.