KR20160023015A - Method of providing medical image - Google Patents

Abstract

The present invention relates to a medical image provision method comprising the steps of: selecting a control mode of an image on a display according to a signal inputted by a contact-type input device; and recognizing operation, inputted by a non-contact operation sensing device, as a signal to convert and display the image according to the selected control mode. According to the present invention, provided is the medical image provision method with reliability and convenience through non-contact control.

Description

METHOD OF PROVIDING MEDICAL IMAGE [0002]

Disclosure relates to a method of providing an image as a whole, and more particularly, to a method of providing a medical image that improves the stability and convenience of image control.

Herein, the background art relating to the present disclosure is provided, and these are not necessarily meant to be known arts.

A medical image is used to guide or monitor a medical tool by a medical image in a surgical field, or a medical image is used in a space outside a surgical field to study a lesion or to evaluate a condition.

1 is a diagram showing an example of a medical work station disclosed in U.S. Patent Application Publication No. 2012/0265071, in which a robot arm is provided with an imaging device 2 and a medical tool 7, And controls the robot arm so that the imaging device moves along with the medical instrument. In such an operation site, a surgeon or an assistant controls medical images while monitoring a plurality of medical images. Such medical images need to be displayed and controlled as needed, as well as medical images used in diagnosis and / or surgery planning, as well as images transmitted from imaging devices provided in medical instruments.

2 shows an example of a medical image display as disclosed in U.S. Patent Application Publication No. 2009/0217207, which includes a processing unit, a display 6, a remote control 10, a communication interface and a software module do. The processing unit processes the medical image and displays it on the display. The remote control registers the movement of the user by at least one motion detection sensor. The communication interface transfers the user's movement to the processing unit. The software module reconciles the user's movement with the displayed medical image and reproduces the user's movement as the motion of the medical image. However, when the operator touches the remote control by hand, it disturbs the aseptic condition, and when the operator manipulates the remote control, the operation is disturbed. If an assistant is additionally provided and the assistant uses the remote control, there is a disadvantage that the practitioner needs to separately instruct or make a request.

On the other hand, in the case of controlling an image using a mouse or a keyboard, the use of a mouse or a keyboard, which is a two-dimensional contact type device, in addition to the above-mentioned aseptic condition, concentration disturbance, There is a problem that the spatial control is inconsistent or insufficient. For example, a means for three-dimensionally controlling the rotation, zooming, window level, etc. of a medical image is not sufficient with a mouse alone. On the other hand, even in the case of three-dimensional control, a simple and clear image control is required to suit the characteristics of medical care.

This will be described later in the Specification for Implementation of the Invention.

SUMMARY OF THE INVENTION Herein, a general summary of the present disclosure is provided, which should not be construed as limiting the scope of the present disclosure. of its features).

According to one aspect of the present disclosure, there is provided a method of providing a medical image comprising: selecting a control mode of an image on a display according to a signal input through a contact input device; And modifying the image according to the selected control mode and displaying the modified image on the display by using the operation input through the non-contact motion sensing device as a signal.

This will be described later in the Specification for Implementation of the Invention.

1 is a diagram illustrating an example of a medical workstation disclosed in U.S. Patent Application Publication No. 2012/0265071,
2 is a diagram showing an example of a medical image display disclosed in U.S. Patent Application Publication No. 2009/0217207,
3 is a block diagram illustrating an example of a method of providing an image according to the present disclosure;
4 is a view for explaining an example of a method of providing a medical image, as an example of a method of providing images according to the present disclosure;
5 is a view for explaining an example of a contact type input device and a noncontact motion sensing device,
6 is a block diagram for explaining another example of a method of providing a medical image according to the present disclosure;
7 is a flowchart for explaining another example of a method of providing a medical image,
FIGS. 8, 9 and 10 are views for explaining an error when only a hand movement is performed without a pedal in a method of controlling an image according to the present disclosure,
11 and 12 are diagrams illustrating an example of a rotation mode,
13 and 14 are diagrams for explaining an example of the Window Level adjustment mode,
FIGS. 15 and 16 are diagrams illustrating an example of a zoom mode,
17 is a view for explaining another example of a method of providing a medical image according to the present disclosure,
18 is a diagram for explaining an example of a zoom and rotation mode,
FIGS. 19 and 20 are diagrams for explaining an example of a Zoom with Scale mode. FIG.

The present disclosure will now be described in detail with reference to the accompanying drawings.

3 is a block diagram illustrating an example of a method of providing an image according to the present disclosure. In the method of providing an image, the control unit 150 receives a signal (e.g., The control mode of the image is selected on the display 170 in accordance with the control mode (Step 131). Thereafter, the image for which the control mode has been determined is modified according to the control signal 111 inputted from the outside 101 through the non-contact motion sensing device 110 and displayed on the display (171). The contact type input device 130 is not limited to simply selecting an image, but may be a control mode for determining how an operation signal (e.g., a user's hand motion) sensed by the noncontact motion sensing device 110 controls an image .

The contact type input device 130, the noncontact motion sensing device 110 and the display 170 are interlocked with each other by a control unit 150 (e.g., a computer) and are connected to a signal input from the outside to the contact input device 130 The control unit 150 selects at least one of a control mode of the image, for example, a rotation mode of the image, an image processing mode of the image, and a zoom mode of enlarging or reducing the image. The operation of the user is sensed from the outside through the non-contact motion sensing device 110, and the controller 150 reads the motion sensed by the non-contact motion sensing device 110 by the control signal 111, modifies the image in the selected control mode And displays it on the display 170 (171). For example, the noncontact motion sensing device 110 is a device that senses a user's hand gesture, and is not particularly limited as long as it is an apparatus that can convert an operation such as translational motion, rotational motion, etc. of a hand into a control signal 111. [ The non-contact motion sensing device 110 may be a leap motion device (see FIG. 5B). As the contact input device 130, a pedal (see FIG. 5A) is exemplified.

The method of providing images according to the present disclosure can be used as a method of providing images for medical images, game images, research images, architecture, and design.

4 is a view for explaining an example of a method of providing a medical image as an example of a method of providing images according to the present disclosure. FIG. 4 illustrates a specific medical image providing system in which a medical image providing method is executed. For example, the medical image providing system includes a medical image photographing apparatus 200 for acquiring a medical image from a patient, and includes a display 170, a pedal 130 as a contact input device 130, A lip motion device 110 is illustrated as a non-contact motion sensing device 110. The medical imaging device 200, the display 170, the contact input device 130, and the noncontact motion sensing device 110 may be interlocked by the computer 150 (control unit).

The control of the medical image can be done in the radiology department, the reading room, etc., but it can also be done in the operation field. You may be able to see medical images by directing to others, but it is inconvenient because you need additional communication. Therefore, it is preferable that a medical practitioner or a user directly controls the medical image and directly and intuitively changes the medical image, direction, image processing, size and the like freely. In particular, in a place such as a surgical field, a doctor or an operator needs to directly touch a medical image directly on the spot where the hand contacts the external object. Therefore, the medical image may be controlled by hand motion, that is, in a non-contact manner. In addition, because of the nature of the medical field, a clear and simple control is desirable. That is, it is desirable that the necessary control operation can be simplified without confusion.

5 is a view for explaining an example of a contact type input device and a non-contact type motion sensing device. As the contact type input device 130, a pedal 130 as shown in FIG. 5A may be used. Since the user's hand is used for rotating, zooming or the like of the medical image, the pedal 130, which can be stepped on the foot, is suitable as the contact-type input device 130. The pedal 130 may be provided with a plurality of pedal units capable of various selections. 5A illustrates a pedal 130 having first, second, and third pedal portions 135, 136, and 137. The pedal 130 may be connected to the control unit 150 via a wire 138.

The non-contact motion sensing device 110 may be, for example, a leap motion device as shown in FIG. 5B. The lip motion device 110 is a user interface with a very sophisticated hand gesture recognition sensor that can very accurately read 8 cubic feet of three-dimensional space with a small iPod-sized device. Such a lip motion device 110 is placed under the user's hand as shown in Fig. 4 so that the hand motion is detected. The lip motion device 110 may be connected to the control unit 150 by a wire 118. Software for the operation of the lip motion device 110 may be installed in the control unit 150. As described above, the noncontact motion sensing device 110 is not particularly limited as long as it is an apparatus capable of sensing motion in addition to the lip motion device. In addition, the position where the noncontact motion sensing device 110 is installed may be installed on the front of the display 170 or attached to the peripheral device in addition to the user's hand.

FIG. 6 is a block diagram for explaining another example of a method of providing a medical image according to the present disclosure, and FIG. 7 is a flowchart for explaining another example of a method of providing a medical image. The first, second, and third pedal portions 135, 136, and 137 may be used as the contact input device, and the lip motion device described above may be used for the noncontact motion sensing device 110. The pedals 135, 136, and 137, the lip motion device 110, and the display 170 are interlocked by the control unit 150. First, the medical image is displayed 10 on the display 170, and the user steps on the third pedal 137 (11) to switch the window to be displayed on the display. Window switching may be window switching for alternately selecting divided areas in the display, and window switching for changing the type of the image itself. Thereafter, the controller 20 displays the converted window (20), steps on the second pedal 136 (21), and changes the control mode (30). The control mode includes at least one of a rotation mode in which an image is rotated according to a hand motion, an image procession mode in which an image is processed according to a hand motion, and a zoom mode in which an image is enlarged or reduced according to a hand motion And preferably include all of them. In addition, more control modes may be included. Subsequently, when the desired control mode is selected, the pedal 135 is depressed to activate the image (31). (41) the medical image is transformed into a selected control mode (rotation, image processing, zoom, etc.) by the hand operation in the activated state (40).

FIGS. 8, 9, and 10 are diagrams for explaining an error when only a hand movement is performed without a pedal in the method of controlling an image according to the present disclosure. For example, in order to adjust an image to a desired view point through rotation, zoom, or the like using only a hand motion when using a pedal without a pedal, a hand shape is manipulated as shown in Fig. 8, (E.g., FIG. 9 corresponds to 175 in FIG. 8). In this state, as shown in FIG. 10, when the fist is held so that the viewpoint can be fixed, the control due to the hand motion is stopped (freeze) so that the hand can be removed. However, during the transformation of the hand shape, the hand must move a little bit in the up and down (V), left and right (H), and back and forth (D), and the contactless input device senses the deformation of the hand movement, do. 10, the image shown in FIG. 10 (corresponding to, for example, 176 in FIG. 8 corresponds to 176 in FIG. 8) is rotated downward to the left, that is, the viewpoint is moved. Therefore, there arises a problem that the image can not be fixed in a state where the user holds a desired position or angle. The modified angle value depends on the length of the finger when the hand is held and the fist held, or the value set to move in proportion to the hand movement, but the important point is that the unwanted point shift occurs.

When medical images are used not only for viewing, but also for interfaces related to medical image-based interventions or navigational devices, such unintentional changes, movements or fluctuations can cause serious errors in the results. In addition, it inconveniences the user to adjust again at a desired point in time. That is, the stability of the medical image control is deteriorated.

According to the image control method according to this example, in the control mode selected through the contact type input device (e.g., pedal), whether or not the image is deformed is determined by the presence or absence of the non- Problems are prevented. In this example, this instability is solved by selecting the control mode of the medical image and executing the control mode through different input devices. For example, if the pedal is used to activate / de-activate only the pedal in an active state and the pedal is used to deactivate the moved image to a desired position, The image is fixed. As described above, since the mode switching between the rotation mode and the zoom mode in the fixed state is performed by the pedal, the medical image is prevented from inadvertently deviating from the desired position as described above. In addition, in this example, the window of the medical image to be controlled is changed by a separate input device such as the pedal 130. [ The pedal can be used by a person who does not go through the other person but is hand-operated.

In this example, medical images are controlled while avoiding contact with an external object (e.g., remote controller, mouse, keyboard, etc.) for controlling medical images, It helps to maintain sterility. In addition, in addition to the treatment field, it is possible to reliably and stably control the image by noncontact control and contact-type control to prevent the movement of the viewpoint of unwanted images in various places and fields such as a diagnosis room, a laboratory, a game, a design and an architecture. Further, according to the method of providing an image according to the present disclosure, the medical image can be more suitably applied to medicine than a two-dimensional interface such as a mouse in the control of a medical image. Particularly, it is possible to provide a control method suitable for three dimensions, which is more intuitive and directly controllable in a three-dimensional space, and which does not require the separate rotation and zooming of the mouse, and is difficult to achieve with a two-dimensional input device such as a mouse . In addition, there is an advantage in that it is possible to design a manipulation procedure and a method of a hand movement and a pedal by fitting them to various medical or clinical types.

Figs. 11 and 12 are diagrams for explaining an example of the rotation mode. For example, the third pedal 137 is depressed to switch the window. The control area on the display may be switched by the window switching or the medical image such as the brain image, the lung image, the liver image, and the bone image may be changed. The second pedal portion 136 is stepped on to select the rotation mode and the first pedal portion 135 is depressed to activate the medical image and to be in a state capable of responding to the control signal. Medical images such as brain image, lung image, liver image, and bone image are rotated in the medical image by the hand operation while being activated in the rotation mode. Figures 11 and 12 illustrate skull images. In the matching of the hand operation and the control signal, the hand movement may be based on translational movement such as left, right (H), up and down (V), back and forth (D) operations based on the display 170, It is possible. However, in order to stabilize the control of the medical image, it is preferable to match a simple and clear operation with a control signal. For example, when the hand moves to the right, the skull image rotates to the right as shown in FIG. 11A, and when the hand moves to the left, the skull image rotates to the left as shown in FIG. 11B. Therefore, the user can view the medical image in a direction which is convenient and stable to view. It is of course possible to match the skull image so that the image of the skull rotates up and down when the hand is moved up and down, and of course it is also possible to rotate in the diagonal direction.

13 and 14 are diagrams for explaining an example of the window level adjustment mode. For example, when the image processing mode is selected by depressing the second pedal portion 136, and the first pedal portion 135 is depressed, Is activated and becomes in a state capable of responding to the control signal. As an example of the image processing mode, the window level in the skull image in the medical image is changed by the hand operation in the activated state in the window level mode. The window level is the CT value (CT number) setting the Hounsfield units (HU) value, which includes the gray scale of the medical image. A typical window level for imaging the lung is -500, and the abdomen is zero at the window level. In addition to the window level, the image processing can also change the contrast continuously or discontinuously, for example, so that when the hand is moved upward, the skull becomes more vivid. When the user's hand is moved downward, the display 170 is displayed with the skin attached to the skull, and image processing such as changing the tone or color of the skin is performed. In addition, the image processing method may include a window width leveling (WWL) and an opacity transfer function change (OTF).

Figs. 15 and 16 are diagrams for explaining an example of the zoom mode. For example, when the second pedal portion 136 is stepped on and the zoom mode is selected, the first pedal portion 135 is depressed, It becomes a state capable of responding to the control signal. For example, when the hand is nearer to the display 170 in the active state in the zoom mode, the skull image is reduced, and when it is farther away, it is enlarged.

On the other hand, in the medical images exemplified in Figs. 11 to 16, the right upper side is a 3D skull image, and the upper left and lower right side sectional images or 2D medical images are shown. Such a two-dimensional medical image may be a cross-section in a specific direction of the three-dimensional medical image. For example, the 2D and 3D medical images can be multi-planar reconstruction (MPR) images and can include axial, coronal, and sagittal images.

For example, when the third pedal 137 is stepped on, a window switching operation is performed to determine which one of three-dimensional medical images or two-dimensional medical images (e.g., exiseric, coronal, caged image, etc.) is to be controlled. Alternatively, it may be considered that the third pedal 137 is switched to another medical image by matching an image turning or the like to the current control target window by hand operation. The second pedal 136 is stepped on to select the control mode of rotation, image processing, zoom, and the like for the current control target medical image appearing after the window switching. For example, in the case of a two-dimensional medical image, the controller 150 can change the order of the slab mode, the image processing mode, and the zoom mode each time the second pedal is depressed. In the Slab mode, medical images can be controlled by hand motion such as Slab Rotation, Slab Translation, Slab Thickness Change, and so on. In the case of the three-dimensional medical image, the controller 150 can change the order of the rotation mode, the image processing mode, and the zoom mode every time the second pedal is depressed. Then, in the selected control mode, when the first pedal 135 is depressed and the medical image is activated, the operation such as rotation, image processing and zooming of the medical image can be performed by hand operation.

17 is a view for explaining another example of a method of providing a medical image according to the present disclosure. For example, the display 170 may have a plurality of windows, and a medical image is displayed on the window (S11). If the third pedal 137 is depressed, the control unit 150 can change the window in which the medical image to be controlled is displayed (S12). Alternatively, it is also possible to pass medical images in the same window. The second pedal 136 is stepped on, and the control unit 150 switches the control mode such as rotation, image processing, zoom, and the like. In the case of the two-dimensional medical image, the controller 150 displays the slab mode, the image processing mode, the Zoom mode sequence, and the Zoom mode sequence every time the second pedal unit 136 is depressed. The control unit 150 controls the rotation mode, the free rotation mode, the pan mode, the window width leveling (WWL), and the Opacity Transfer function change (WWL) every time the second pedal unit 136 is depressed. ; OTF, etc.), Zoom, Zoom with Scale, Zoom + Pan, Rotate + Zoom mode, Measurement mode, Free Mouse With Click mode. For example, the first pedal 135 is depressed in the state of being switched to the rotation mode (S13), and the medical image is activated (S14). The control unit 150 modifies the medical image in the selected control mode and displays the modified medical image on the display 170 according to the hand operation inputted into the non-contact motion sensing apparatus 110 in the activated state. For example, as the user performs a hand motion in the rotation mode, the controller 150 rotates the activated medical image on the display 170 (S15). Then, the pedal is depressed to switch to the image processing mode (S16), the pedal # 1 is activated to depress the pedal # 1 (S17), and the controller 150 controls the window level of the activated medical image, brightness, contrast, and image rendering are changed on the display 170. Next, the pedal # 2 is depressed to switch to the zoom mode (S19), the pedal # 1 is depressed to activate (S20) ) Mode, the controller 150 enlarges or reduces the activated medical image on the display 170 (S21).

Thus, the user can rotate the image in a desired direction, image-processed, and magnify and view the image. Of course, rotation, image processing, and zooming can be done differently depending on the order.

Fig. 18 is a view for explaining an example of the zoom and rotation mode. The control mode may be various control modes other than those described above. For example, as shown in FIG. 18, the Zoom + Pan or Rotation + Zoom mode simultaneously performs a one-dimensional zoom and a two-dimensional pan or rotation utilizing the advantage that the noncontact motion sensing device has three- . To do this, you can translate and rotate your hand at the same time. Alternatively, it is possible to use not only a rotation in the up-and-down direction or the left-right direction based on the center of the existing rotation, but also a free-rotation mode in which a clockwise and counterclockwise rotation can be performed while fixing the view point. According to this mode, the medical image can be more suitably applied to the medical image than the two-dimensional interface such as a mouse. In particular, it provides a control method suitable for three dimensions that is difficult to achieve with a mouse because it is possible to perform more intuitive direct control in a three-dimensional space without having to separately rotate and zoom the mouse.

In addition, various measurement modes can be used to measure distances between two points or angles between three points, which are very necessary in a surgical field. By using the Free Mouse With Click mode, which can replace a conventional mouse, For example, a noncontact motion detection device) can be used.

FIGS. 19 and 20 are diagrams for explaining an example of a Zoom with Scale mode. In the case of Zoom with Scale, a zooming rate is controlled to use a depth (D) of a three-dimensional device As shown in FIG. 19, when the user and the non-contact motion sensing apparatus are far away, the zoom is controlled to a large scale. When the user and the non-contact motion sensing apparatus are close to each other, as shown in FIG.

In addition, the stability and convenience of the medical image control can be improved by various combinations of the pedal portion and the hand operation. For example, each time the second pedal portion 136 is depressed, the control mode is switched, but in a certain control mode, the second pedal portion 136 is manually depressed to match a more detailed selection of the corresponding control mode It is possible.

In addition, there are ways to use the dimension without zooming / panning / rotation rate by using the advantage of 3D interface such as Zoom with scale, using hand-shaped gesture or using with pedal .

The above-described method of controlling the medical image can be implemented by a noncontact motion detection device, a contact input device and software and a user interface for controlling the display, and the software can be installed in a control unit or a computer readable recording medium have.

Various embodiments of the present disclosure will be described below.

(1) A method of providing a medical image, the method comprising: selecting a control mode of an image on a display according to a signal input through a contact input device; And transforming the image according to the selected control mode and displaying the transformed image on the display, using the operation input through the non-contact motion sensing device as a signal.

(2) In the control mode selected through the contact-type input device, whether or not the image is deformed is determined by the presence or absence of the non-contact hand operation. Thus, the control mode switching and the control mode switching Wherein the error is prevented.

(3) In the control mode selected through the contact type input device, it is determined whether or not the image is deformed by the presence of the non-contact hand gesture, thereby preventing the unintentional movement of the viewpoint of the image when switching from the selected control mode to the other control mode Wherein the medical image is provided to a user.

(4) The non-contact motion sensing device is a leap motion device for sensing the user's hand motion.

(5) The control mode includes: a rotation mode in which the image is rotated according to a hand motion; An image processing mode for performing image processing in accordance with a hand motion; A zoom mode for enlarging or reducing an image according to a hand motion; The method comprising the steps of:

(6) The contact type input device, the contactless motion detection device, and the display are interlocked with each other by the control unit, and the contact type input device is a pedal that can be stepped by the user and includes first, second and third pedal portions, Wherein the first pedal step is activated so that the image is activated and the control unit modifies the image in the selected control mode according to the hand operation inputted to the non-contact motion detection device only in the activated state, and displays the deformed image on the display.

(7) The method of providing a medical image according to any one of claims 1 to 5, wherein the control unit switches to another control mode every time the second pedal is depressed.

(8) The method of providing a medical image according to any one of claims 1 to 7, wherein the controller switches the window so that another image is displayed every time the third pedal is depressed.

(9) The step of selecting the control mode includes: a step of switching the window so that the control unit displays another image when the third pedal is depressed; Switching the control mode of the control unit when the second pedal unit is depressed in the switched window; And activating an image when the first pedal is depressed in the switched control mode.

(10) Image processing modes include: WWL (window width leveling) mode; A brightness mode for changing the contrast ratio; image rendering mode; And an Opacity Transfer function change (OTF) mode; The method comprising the steps of:

(11) The control mode includes: a zooming and rotating mode in which rotation and zooming of an image are simultaneously performed according to a hand movement; And a free rotation mode in which the image is rotated clockwise and / or counterclockwise while the view point is fixed; The method comprising the steps of:

(12) When a two-dimensional image is displayed on the display, the control unit switches the control mode in the order of the slab mode, the image processing mode, and the zoom mode each time the second pedal is depressed. When the three- And the control mode is switched in the order of the rotation mode, the image processing mode, and the zoom mode every time the second pedal is depressed.

(13) The control mode includes: a basic rotation mode in which the rotation amount of the image is determined according to the size of the hand movement regardless of the distance from the display; A scale rotation mode in which the amount of rotation with respect to the hand movement is changed according to the distance from the display; A basic zoom mode in which the zoom amount of the image is determined according to the size of the hand movement regardless of the distance from the display; A scale zooming mode in which the zoom amount for the hand movement is changed according to the distance from the display; An image processing mode including at least one of a window width leveling (WWL) mode, a brightness mode for changing a contrast ratio, an image rendering mode, and an opacity transfer function change (OTF) mode; And a zoom and rotation mode in which rotation and zoom are performed simultaneously according to a hand movement.

According to the method of providing one image according to the present disclosure, stability of image control is improved and an image providing method suitable for three-dimensional image control is provided.

According to another medical image providing method according to the present disclosure, the stability of medical image control is improved, and an intuitive and direct medical image control method is provided.

According to another medical image providing method according to the present disclosure, a medical image providing method having safety and convenience by noncontact control is provided.

110: Non-contact motion sensing device 130: Contact input device
150: control unit 170: display

Claims (13)

A method for providing a medical image,
Selecting a control mode of an image on a display according to a signal input through a contact input device; And
And modifying the image according to the selected control mode and displaying the deformed image on the display by using the operation input through the non-contact motion detection device as a signal. The method according to claim 1,
In the control mode selected through the contact type input device, whether or not the image is deformed is determined by the presence of non-contact hand movements, thereby preventing discrimination errors between control mode execution and control mode switching when performing control mode switching and control mode execution only by manual operation Wherein the medical image includes a plurality of images. The method of claim 2,
It is possible to prevent the unintentional movement of the viewpoint of the image when switching from the selected control mode to the other control mode by determining whether or not the image is deformed in the control mode selected through the contact type input device, The method comprising the steps of: The method of claim 2,
Wherein the non-contact motion sensing device is a leap motion device for sensing a user's hand motion. The method of claim 4,
The control mode is:
A rotation mode in which an image is rotated according to a hand motion;
An image processing mode for performing image processing in accordance with a hand motion; And
A zoom mode for enlarging or reducing an image according to a hand operation; The method comprising the steps of: The method of claim 2,
The contact type input device, the noncontact motion sensing device, and the display are interlocked with each other by the control unit,
The contact input device is a user-depressible pedal having first, second and third pedal portions,
The first pedal section is stepped on to activate the image,
Wherein the control unit modifies the image in the selected control mode according to the hand operation input to the non-contact motion detection device only in the activated state, and displays the modified image on the display. The method of claim 6,
And the control unit switches to another control mode every time the second pedal is depressed. The method of claim 6,
And the control unit switches the window so that another image is displayed every time the third pedal is depressed. The method of claim 6,
The step of selecting a control mode comprises:
Switching the window so that the control unit displays another image when the third pedal is depressed;
Switching the control mode of the control unit when the second pedal unit is depressed in the switched window; And
And activating an image when the first pedal is depressed in the switched control mode. The method of claim 5,
Image processing modes are:
WWL (window width leveling) mode;
A brightness mode for changing the contrast ratio;
image rendering mode; And
Opacity Transfer function change (OTF) mode; The method comprising the steps of: The method of claim 5,
The control mode is:
A zooming and rotating mode in which rotation and zooming of an image are performed simultaneously according to a hand movement; And
A free rotation mode in which the image rotation motion in the clockwise direction and / or the counterclockwise direction is performed while the view point is fixed; The method comprising the steps of: The method of claim 6,
When the two-dimensional image is displayed on the display, the control unit switches the control mode in the order of the slab mode, the image processing mode, and the zoom mode each time the second pedal is depressed,
Wherein when the three-dimensional image is displayed on the display, the control unit switches the control mode in the order of the rotation mode, the image processing mode, and the zoom mode each time the second pedal is depressed. The method of claim 9,
The control mode is:
A basic rotation mode in which the rotation amount of the image is determined according to the size of the hand movement regardless of the distance from the display;
A scale rotation mode in which the amount of rotation with respect to the hand movement is changed according to the distance from the display;
A basic zoom mode in which the zoom amount of the image is determined according to the size of the hand movement regardless of the distance from the display;
A scale zooming mode in which the zoom amount for the hand movement is changed according to the distance from the display;
An image processing mode including at least one of a window width leveling (WWL) mode, a brightness mode for changing a contrast ratio, an image rendering mode, and an opacity transfer function change (OTF) mode; And
And a zoom and rotation mode in which rotation and zoom are simultaneously performed according to a hand movement.

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