KR102363307B1 - System for sinus diagnosis and method for position determination of oral illumination appartus using the same - Google Patents

Abstract

The present invention relates to a sinus diagnosis system and a method for determining the position of a mouthpiece for oral examination using the same.
According to the present invention, in the method for determining the position of the mouthpiece for oral examination using the sinus diagnosis system, the measurement target is measured through the near-infrared camera included in the sinus measurement device in a state in which the mouthpiece for oral examination is placed in the mouth. A step of acquiring a near-infrared photograph by photographing a face, a virtual first connecting line connecting the center of both pupils of the subject to be measured with a virtual center line (S) for separating the face of the subject to be measured from left and right in the near-infrared photo ( L1) and setting a virtual second connecting line (L2) connecting the left and right recognition marks of the mouthpiece for oral irradiation, the center line, the first connecting line, the size of the angle inclined with respect to the second connecting line with respect to the horizontal line It includes the steps of measuring, calculating the reliability of the near-infrared photograph using the measured value, and determining whether or not the mouthpiece for oral irradiation is positioned using the reliability.
As described above, according to the present invention, the state and characteristics of sinusitis can be effectively identified by obtaining the result of the near-infrared photograph in a state where the mouthpiece for oral examination is positioned in the correct position in the oral cavity of the subject to be measured.

Description

A sinus diagnosis system and a method for determining the position of a mouthpiece for oral examination using the same

The present invention relates to a sinus diagnosis system and a method for determining the position of a mouthpiece for oral examination using the same, and a sinus diagnosis system for determining whether a mouthpiece for oral examination held by a subject to be measured for diagnosing sinusitis is in the correct position, and the same It relates to a method for determining the position of a mouthpiece for oral irradiation used.

Currently, the number of patients with sinusitis (sinusitis) due to air pollution such as fine dust is continuously increasing, and as of 2016, the number has already exceeded 6.6 million (Status of Sinusitis Health Insurance Patients, National Health Insurance Corporation).

Sinusitis can be classified into watery rhinorrhea (low viscosity), mucinous rhinorrhea (medium viscosity), and purulent rhinorrhea (high viscosity) according to the viscosity of rhinorrhea (nasal drip) accumulated in the sinuses. Several types of treatment methods can be applied.

However, there is currently no way to accurately measure the concentration of rhinorrhea, so an indirect method is used to measure the amount of pus in the sinuses using optical equipment such as X-ray and CT and an indirect method.

Due to this, the abuse of antibiotics for sinusitis due to the absence of an accurate diagnosis has become a constant social issue, and the use of equipment such as X-ray and CT for indirect diagnosis shows that 30% of sinusitis patients are children under 9 years of age. Considering that, there is a problem that serious damage due to radiation exposure may occur.

To solve this problem, Finnish Mediq Suomi proposed a product for diagnosing blockage in the sinuses using the echo of ultrasound. There is this.

To eliminate these shortcomings, there is a need for a technology that can accurately measure sinusitis by consistently interpreting data without using optical equipment such as X-ray and CT.

However, when diagnosing a sinus state using near-infrared rays, there is a problem in that the amount of information for determining the sinus state varies according to the amount of near-infrared light irradiated to the sinuses.

In addition, if the position of the mouthpiece for oral irradiation irradiating near-infrared rays is changed depending on the subject to be measured, there is a disadvantage in that the state of the sinuses cannot be accurately determined due to an imbalance of left-right symmetry.

Therefore, in order to accurately determine the sinus state, a method for determining whether the position where the measurement subject bit the mouthpiece for oral examination is appropriate is needed.

The technology that is the background of the present invention is disclosed in Republic of Korea Patent Registration No. 10-1653180 (2016.09.01. Announcement).

The technical problem to be achieved by the present invention is to provide a sinus diagnosis system for judging whether or not the mouthpiece for oral examination held in the mouth by a subject to be measured for sinusitis diagnosis and a method for determining the position of the mouthpiece for oral examination using the same will be..

According to an embodiment of the present invention for achieving this technical problem, in a method for determining the position of a mouthpiece for oral examination using a sinus diagnosis system, in a state in which the subject to be measured puts the mouthpiece for oral examination in his mouth, the sinus measuring device Obtaining a near-infrared photo by photographing the face of the subject to be measured through an included near-infrared camera, a virtual center line (S) for separating the face of the subject to be measured from left and right in the near-infrared photo and both pupils of the subject Setting a virtual first connecting line (L1) connecting the center and a virtual second connecting line (L2) connecting the left and right recognition marks of the mouthpiece for oral irradiation, the center line, the first connecting line, and the second connecting line Measuring the size of a horizontal line or an angle inclined with respect to the horizontal line, calculating the reliability of the near-infrared photograph using the measured value, and whether the oral examination mouthpiece is positioned using the reliability It includes the step of judging.

The plurality of recognition marks may be symmetrically formed on the left and right sides of the outer surface of the support portion of the mouthpiece for oral irradiation.

Measuring the magnitude of the inclination angle may include measuring an inclination angle with respect to the central line (S) with respect to the horizontal line of the near-infrared photograph, and the first connecting line (L1) and the second line against the horizontal line of the near-infrared photograph. It may include measuring the inclined angle with respect to each of the connecting lines (L2).

In the calculating of the reliability, the reliability may be calculated by applying the angle of inclination of the center line S, the first connecting line L1, and the second connecting line L2 to the following equation.

여기서, Sa 는 중앙선(S)이 수평선에 대해 기울어진 각도의 크기이고, L1a 및 L2a는 각각 제1 연결선(L1) 및 제2 연결선(L2)의 기울어진 각도의 크기이며, A 및 B는 각각 보정 계수이다.

Here, Sa is the magnitude of the angle at which the center line S is inclined with respect to the horizontal line, L1a and L2a are the magnitudes of the inclination angle of the first connection line L1 and the second connection line L2, respectively, and A and B are each is the correction factor.

If the reliability is greater than or equal to the reference value, the measurement subject determines that the position of the mouthpiece for oral examination is the correct position, and if the reliability is less than the reference value, it is determined that the position of the mouthpiece for oral examination is not the correct position can do.

If it is determined that the position of the subject to be measured is not the correct position of the mouthpiece for oral examination, the method may further include correcting the face posture of the subject or requesting re-photography by biting the mouthpiece for oral examination again. there is.

According to another embodiment of the present invention, in the sinus diagnosis system for determining the position of the mouthpiece for oral irradiation, in a state in which the subject to be measured holds the mouthpiece for oral examination in his mouth, through the near-infrared camera included in the sinus measuring device A photographing unit that captures the face of the subject to be measured to obtain a near-infrared photo, and a virtual center line (S) for separating the face of the subject to be measured from left and right in the near-infrared photo and a virtual center of both pupils of the subject to be measured A setting unit for setting a virtual second connection line (L2) connecting the first connection line (L1) of and the left and right recognition marks of the mouthpiece for oral irradiation, the center line, the first connection line, and the second connection line based on a horizontal line A measuring unit for measuring the size of the inclined angle, a calculating unit for calculating the reliability of the near-infrared photograph using the measured value, and a control unit for determining whether the mouthpiece for oral irradiation is in the correct position using the reliability include

As described above, according to the present invention, the state and characteristics of sinusitis can be effectively identified by obtaining the result of the near-infrared photograph in a state where the mouthpiece for oral examination is positioned in the correct position in the oral cavity of the subject to be measured.

1 is a view for explaining a sinus diagnosis system according to an embodiment of the present invention.
Figures 2a to 2c is a view showing the appearance of the mouthpiece for oral irradiation according to an embodiment of the present invention.
3 is a view for explaining the configuration of a sinus measuring apparatus according to an embodiment of the present invention.
Figure 4 is a flow chart for explaining a method for determining whether the original position of the mouthpiece for oral irradiation according to an embodiment of the present invention.
Figure 5 is an exemplary view showing a near-infrared photograph for determining whether the position of the mouthpiece for oral irradiation according to an embodiment of the present invention.
6 is a flowchart for explaining step S470 of FIG. 4 .
7 is a view for explaining a first divided area to a third divided area according to an embodiment of the present invention.
8 is an exemplary diagram illustrating first to third points set according to an embodiment of the present invention.
9A is an exemplary diagram for providing a diagnosis result according to a case in which the sinus index of the subject to be measured is 0;
9B is an exemplary view providing a diagnosis result according to the case where the sinus index of the measurement target is 93 points and 78 points on the left and right sides, respectively.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

Then, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them.

Hereinafter, a sinus diagnosis system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 .

1 is a view for explaining a sinus diagnosis system according to an embodiment of the present invention, and FIGS. 2A to 2C are views showing the appearance of a mouthpiece for oral examination according to an embodiment of the present invention.

As shown in FIG. 1 , the sinus diagnosis system according to an embodiment of the present invention includes a mouthpiece 100 for oral examination and a sinus measuring device 200 .

Here, the sinus diagnosis system according to an embodiment of the present invention analyzes a photograph taken using near-infrared rays, and analyzes the sinus index of the subject to be measured based on the analysis result.

First, the mouthpiece 100 for oral irradiation according to an embodiment of the present invention is implemented in the form of a mouthpiece, and irradiates near-infrared rays using an LED in the mouth of a subject to be measured.

In addition, the sinus measuring apparatus 200 acquires a plurality of near-infrared photos in a state of irradiating near-infrared rays, and analyzes the sinus index of the subject to be measured by using the acquired photos.

As shown in Fig. 1, when the subject to be measured puts his or her face in close contact with the sinus measuring device 200 with the mouthpiece 100 for oral irradiation in the mouth, the sinus measuring device 200 takes the subject to be measured and shows a general photo and You can take near-infrared photos. Then, the sinus measuring device 200 may take two types of pictures, a reference picture and a near-infrared picture, depending on whether the LED of the mouthpiece 100 for oral irradiation is turned on.

As shown in FIGS. 2A to 2C , the mouthpiece 100 for oral irradiation includes an outer portion 110 , an inner portion 120 and a support portion 130 .

The outer part 110 supplies power to the mouthpiece 100 for oral irradiation because a battery is included therein.

The inner portion 120 is a portion inserted into the oral cavity of the subject to be measured, and a plurality of LEDs 140 are included therein, and as shown in FIG. 2a , the plurality of LEDs 140 are symmetrically disposed on both sides as the center of the inner portion. . In addition, as shown in Figure 2b, the inner portion 120 is implemented in a state inclined to the side, so that the measurement target can be easily inserted into the oral cavity.

The plurality of LEDs 140 includes a first LED 140a, a second LED 140b, and a third LED 140c, and the measurement target puts the inner part 120 of the mouthpiece 100 for oral irradiation into the mouth. When bitten, the first LED (140a) is located in the innermost portion of the mouth of the measurement subject, the third LED (140c) is located in the outermost portion of the mouth of the measurement subject.

In addition, the support part 130 is located between the outer part 110 and the inner part 120, and corresponds to the part where the lips of the measurement subject touch. The support 130 is implemented in a curved shape so that the oral subject can easily adhere to it.

As shown in FIG. 2C , identification marks 150a and 150b are attached to the right side and the left side, respectively, in the outer direction of the support unit 130 .

The sinus measuring apparatus 200 may determine whether the subject to be measured is accurately biting the mouthpiece 100 for oral examination through the balance of the left and right recognition marks 150a and 150b shown in the near-infrared photograph. That is, the sinus measuring device 200 measures the balance of the left and right recognition marks 150a and 150b located at points spaced apart from each other, and the position of the mouthpiece 100 for oral examination held by the subject to be measured in the mouth. can determine whether

At this time, in FIGS. 2a to 2c, the number of LEDs 140 is expressed in the form of two pairs of three (140a, 140b, 140c), but the number and installation position of the LEDs are to be changed according to the oral structure of the subject to be measured. The symmetrical left and right LEDs may emit wavelengths of the same size, and neighboring LEDs may emit different wavelengths.

3 is a view for explaining the configuration of a sinus measuring apparatus according to an embodiment of the present invention.

As shown in FIG. 3 , the sinus measuring apparatus 200 according to an embodiment of the present invention includes a photographing unit 210 , a setting unit 220 , a measuring unit 230 , a calculating unit 240 , and a control unit 250 . .

First, in a state in which the subject to be measured holds the mouthpiece 100 for oral irradiation in his/her mouth, the photographing unit 210 acquires a near-infrared photograph by photographing the subject's face through a near-infrared camera.

Next, the setting unit 220 includes a virtual center line (S) for separating the face of the subject to be measured from left and right in the near-infrared photograph, and a virtual first connecting line (L1) connecting the centers of both pupils of the subject and the oral cavity. A virtual second connecting line L2 is set to connect the left and right recognition marks of the mouthpiece to be used.

Next, the measurement unit 230 measures a horizontal line or an angle of an angle inclined with respect to the center line S, the first connection line L1, and the second connection line L2 with respect to the horizontal line.

Next, the calculating unit 240 calculates the reliability of the near-infrared photograph by using the value of the measured angle.

Then, the control unit 250 determines whether the position of the mouthpiece 100 for oral irradiation by using the calculated reliability.

At this time, if the reliability is greater than or equal to the reference value, the control unit 250 determines that the position where the measurement target bites the mouthpiece 100 for oral examination is appropriate.

In addition, if the reliability is less than the reference value, the control unit 250 determines that the position where the measurement target bites the mouthpiece 100 for oral examination is not a suitable position.

Hereinafter, a method of determining whether the position of the mouthpiece 100 for oral irradiation is in detail will be described in detail with reference to FIGS. 4 and 5 .

Figure 4 is a flow chart for explaining a method for determining whether or not the position of the mouthpiece for oral irradiation according to an embodiment of the present invention, Figure 5 is whether the mouthpiece for oral irradiation according to an embodiment of the present invention is located It is an exemplary view showing a near-infrared photograph for determining whether or not.

First, the sinus measuring apparatus 200 acquires a near-infrared photograph by photographing the face of the subject to be measured through a near-infrared camera (S410).

Then, as shown in FIG. 5 , the sinus measuring apparatus 200 acquires a near-infrared photograph of the subject's face.

Next, the sinus measuring apparatus 200 sets a virtual center line (S), a first connection line (L1), and a second connection line (L2) in the general picture (S420).

At this time, the virtual center line (S) is a virtual line for dividing the face of the subject to be measured left and right, the first connecting line (L1) is a virtual line connecting the centers of both pupils of the subject to be measured, and the second connecting line ( L2) is an imaginary line connecting the left and right recognition marks 150a and 150b of the mouthpiece 100 for oral irradiation.

That is, as shown in FIG. 5 , the sinus measuring apparatus 200 sets a virtual center line S, a first connection line L1, and a second connection line L2.

Hereinafter, for convenience of explanation, the angle of inclination with respect to the virtual center line (S) with respect to the horizontal line is Sa, and the angle of inclination with respect to the horizontal line of the near-infrared photograph with respect to each of the first connecting line (L1) and the second connecting line (L2) is referred to as L1a, L2a. name

Then, the sinus measuring apparatus measures the angle Sa inclined with respect to the virtual center line S with respect to the horizontal line (S430).

Next, the sinus measuring apparatus 200 measures the angles L1a and L2a inclined with respect to each of the first connecting line L1 and the second connecting line L2 with respect to the horizontal line (S440).

Here, the inclination angles Sa, L1a, and L2a are measured using a horizontal line, respectively.

The inclination angle (Sa) refers to the angle at which the virtual center line (S) deviates from the horizontal line, and the inclination angles (L1a, L2a) are the angles at which each of the virtual first connecting line (L1) and the second connecting line (L2) deviates from the horizontal line. say

For example, if the angle at which the virtual center line S deviates from the horizontal line of the near-infrared photograph is 0°, the inclined angle Sa is measured to be 90.

As another example, if the angles deviating from the horizontal line of the imaginary first connecting line L1 and the second connecting line L2 are 4° and 7°, respectively, the inclined angles L1a and L2a are 4 and 7, respectively. is measured as

Next, the sinus measuring apparatus 200 calculates the reliability of the corresponding near-infrared photograph by using the measured inclination angles (Sa, L1a, L2a) (S450).

First, the sinus measuring apparatus 200 calculates the reliability of the near-infrared photograph by using each of the measured inclination angles (Sa, L1a, L2a) using Equation 1 below.

Here, A and B are correction coefficients, respectively.

For example, if Sa is 90, L1a is 4, L2a is 7, and A and B are 0.2 and 0.3, respectively, the reliability is calculated as 83.5 through Equation 1.

Then, the sinus measuring device 200 determines whether or not the position of the mouthpiece 100 for oral examination using the calculated reliability (S460).

If the reliability calculated in step S450 is less than the reference value, the sinus measuring apparatus 200 determines that the measurement subject does not bite the oral examination mouthpiece 100 in the correct position.

Then, the sinus measuring device 200 uses a voice or an alarm to correct the face posture of the subject to be measured or bites the mouthpiece 100 for oral examination again and requests re-photography.

That is, if it is determined that the subject to be measured does not bite the mouthpiece 100 for oral examination in the correct position, the sinus measuring device 200 corrects the face posture of the subject to be measured or the mouthpiece 100 for oral examination is bitten again. Steps S410 to S460 are re-executed.

Here, the reference value may be a preset value or may be changed according to a user using the sinus measuring apparatus 200 .

At this time, if the reliability calculated in step S450 is greater than or equal to the reference value, the sinus measuring device 200 determines that the measurement subject bites the mouthpiece 100 for oral examination in the correct position.

Then, the sinus measuring apparatus 200 measures the sinus index by using the corresponding near-infrared photograph (S470).

Hereinafter, step S470 will be described in more detail with reference to FIGS. 6 to 9B .

As shown in FIG. 6 , the sinus measuring apparatus 200 according to an embodiment of the present invention sets a pair of first, second, and third points on the left and right sides of the near-infrared photograph ( S471 ).

Hereinafter, a process of setting the first point, the second point, and the third point in step S471 will be described with reference to FIGS. 7 and 8 .

The sinus measuring apparatus 200 divides the near-infrared image into a plurality of divided regions in order to set each point.

7 is a view for explaining a first divided area to a third divided area according to an embodiment of the present invention.

As shown in FIG. 7 , the sinus measuring apparatus 200 sets a plurality of virtual lines in vertical and horizontal directions in each near-infrared photograph to distinguish the first to third divided areas.

The first vertical line (V1), the second vertical line (V2), the third vertical line (V3), and the fourth vertical line (V4) are the outer point of the right eye (E1) and the inner point of the right eye (E2) for the near-infrared photograph. , represents an imaginary line passing through the inner point (E3) of the left eye and the outer point (E4) of the left eye.

In addition, the first horizontal line H1 and the second horizontal line H2 represent virtual lines passing through the lip endpoints M1 and M2 and the nose endpoints N1 and N2, respectively, in a picture taken through a near-infrared camera.

In addition, the third horizontal line H3 is an imaginary line passing through the center points T1 and T2 of the pupil in the picture taken through the near-infrared camera, and the fourth horizontal line H4 is the second horizontal line H2 and the third horizontal line (H3) represents an imaginary line passing through the center between

When a plurality of virtual vertical lines V1, V2, V3, and V4 and a plurality of virtual horizontal lines H1, H2, H3, and H4 are set in this way, a plurality of divided regions are generated by each intersecting line.

That is, as shown in FIG. 7 , the first divided area exists in an area where the plurality of virtual vertical lines V1 , V2 , V3 and V4 and the plurality of virtual horizontal lines H1 and H2 intersect, and the second divided area exists in a region where the plurality of virtual vertical lines V1, V2, V3, and V4 and the plurality of virtual horizontal lines H2 and H4 intersect, and the third division region includes the plurality of virtual vertical lines V1, V2, V3 , V4) and the plurality of imaginary horizontal lines H3 and H4 intersect each other.

When a plurality of divided areas are set as shown in FIG. 7 , the sinus measuring apparatus 200 according to an embodiment of the present invention sets each point for each divided area.

8 is an exemplary diagram illustrating first to third points set according to an embodiment of the present invention.

As shown in FIG. 8 , the first to third points are respectively set on the left and right sides of the face in the near-infrared photograph.

That is, as shown in FIG. 8 , the sinus measuring apparatus 200 sets the first points LP1 and RP1 having the largest pixel value in the first divided region, and sets the first point having the largest pixel value in the second divided region. Two points LP2 and RP2 are set, and third points LP3 and RP3 having the largest pixel value in the third divided area are set.

In addition, the first to third points respectively set on the left and right sides may be set at positions symmetrical to each other or set at different positions, respectively.

Then, the sinus measuring apparatus 200 calculates each of the left and right sinus indices using the near-infrared photograph (S472).

That is, the sinus measuring apparatus 200 applies the pixel values at the first point P1, the second point P2, and the third point P3 in the near-infrared photograph to Equation 2 below to the left of the near-infrared photograph. and compute the right sinus index for each.

where X, Y, and Z are pixel coefficients and F is the sinus coefficient.

At this time, the sinus index refers to the amount of pus present in the sinuses.

When each of the left and right sinus indices of the measurement subject are calculated in step S472, the sinus measuring apparatus 200 displays the calculated sinus indices (S473).

At this time, the sinus measuring apparatus 200 displays the calculated sinus index on the screen in numerical form or normalizes the sinus index and displays it on the screen in the form of a shaded area according to the normalized value.

9A and 9B are exemplary views providing a sinus diagnosis result according to an embodiment of the present invention.

9A is an exemplary view providing a diagnosis result according to the case where the sinus index of the measurement target is 0, and FIG. 9B is an example of providing a diagnosis result according to the case where the sinus index of the measurement target is 93 points and 78 points on the left and right sides, respectively It is also

That is, when the sinus index is 0 as shown in FIG. 9A , since there is no pus in the sinuses, the sinus measuring apparatus 200 provides the diagnosis result without displaying the shade.

On the other hand, when the sinus index is 93 points and 78 points on the left and right sides, respectively, as shown in FIG. 9B , the sinus measuring apparatus 200 provides a diagnostic result by changing the color according to the sinus index

That is, as shown in Figure 9b, if the sinus index is 0 or more and less than 40 points, the sinus measuring device 200 represents the color of the shade in green, and if the sinus index is 40 or more and less than 70 points, the sinus measuring device 200 represents the color of the shade in orange, and when the sinus index is greater than or equal to 70 and less than or equal to 100, the sinus measuring apparatus 200 represents the color of the shade in red.

Also, the sinus measuring apparatus 200 may numerically display the sinus index corresponding to each of the left and right sides of the face.

And, the sinus measuring device 200 provides a comprehensive opinion according to each of the left and right sinus index.

As described above, according to an embodiment of the present invention, the state and characteristics of sinusitis can be effectively identified by obtaining the result of the near-infrared photograph in a state where the mouthpiece for oral irradiation is positioned in the correct position in the oral cavity of the subject to be measured.

Although the present invention has been described with reference to the embodiment shown in the drawings, this is merely exemplary, and those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: mouthpiece for oral irradiation, 110: outer part,
120: inner portion, 130: support portion,
140: LED, 150a, 150b: recognition mark,
200: sinus measuring device, 210: recording unit,
220: setting unit, 230: measuring unit,
240: arithmetic unit, 250: control unit

Claims (12)

In the method for determining the position of a mouthpiece for oral examination using a sinus diagnosis system,
acquiring a near-infrared photograph by photographing the subject's face through a near-infrared camera included in a sinus measuring device in a state in which the subject to be measured has a mouthpiece for oral irradiation in his/her mouth;
In the near-infrared photograph, a virtual center line (S) for dividing the face of the subject to be measured from left to right and a virtual first connecting line (L1) connecting the centers of both pupils of the subject to be measured and the left and right of the mouthpiece for oral irradiation Setting a virtual second connecting line (L2) connecting the recognition mark;
Measuring the magnitude of the angle inclined with respect to the horizontal line with respect to the center line, the first connection line, and the second connection line;
calculating the reliability of the near-infrared photograph using the measured value; and
A method for determining the position of a mouthpiece for oral examination comprising the step of determining whether the mouthpiece for oral examination is in the correct position using the reliability. According to claim 1,
The plurality of recognition marks,
A method of determining the position of a mouthpiece for oral irradiation that is formed symmetrically on the left and right of the outer surface of the support part of the mouthpiece for oral irradiation. According to claim 1,
Measuring the size of the inclined angle is,
Measuring an angle inclined with respect to the central line (S) with respect to the horizontal line of the near-infrared photograph, and
Position determination method of the mouthpiece for oral irradiation comprising the step of measuring an inclined angle with respect to each of the first connecting line (L1) and the second connecting line (L2) compared to the horizontal line of the near-infrared photograph. 4. The method of claim 3,
The step of calculating the reliability is
The method of determining the position of the mouthpiece for oral irradiation to calculate reliability by applying the inclined angle size of the center line (S), the first connecting line (L1) and the second connecting line (L2) to the following equation:

Here, Sa is the magnitude of the angle at which the center line S is inclined with respect to the horizontal line, L1a and L2a are the magnitudes of the inclination angle of the first connection line L1 and the second connection line L2, respectively, and A and B are each is the correction factor. According to claim 1,
The step of determining whether the mouthpiece for oral examination is in the correct position,
If the reliability is greater than or equal to the reference value, the measurement subject determines that the position of the mouthpiece for oral examination is the correct position, and if the reliability is less than the reference value, it is determined that the position of the mouthpiece for oral examination is not the correct position A method for determining the position of a mouthpiece for oral irradiation. 6. The method of claim 5,
Oral comprising the step of correcting the face posture of the subject to be measured or requesting re-photography by biting the mouthpiece for oral examination again when it is determined that the position of the subject to be measured is not the correct position of the mouthpiece for oral examination A method of determining the position of the mouthpiece for irradiation. In the sinus diagnosis system for determining the position of the mouthpiece for oral examination,
A photographing unit that acquires a near-infrared photograph by photographing the subject's face through the near-infrared camera included in the sinus measuring device in a state in which the subject to be measured holds the mouthpiece for oral examination in his/her mouth;
In the near-infrared photograph, a virtual center line (S) for dividing the face of the subject to be measured from left to right and a virtual first connecting line (L1) connecting the centers of both pupils of the subject to be measured and the left and right of the mouthpiece for oral irradiation A setting unit for setting a virtual second connection line (L2) connecting the recognition mark,
A measuring unit for measuring the magnitude of the angle inclined with respect to the horizontal line with respect to the center line, the first connecting line, and the second connecting line;
a calculating unit for calculating the reliability of the near-infrared photograph by using the measured value; and
A sinus diagnosis system comprising a controller for determining whether the mouthpiece for oral examination is in the correct position using the reliability. 8. The method of claim 7,
The plurality of recognition marks,
A sinus diagnosis system formed symmetrically on the left and right of the outer surface of the support part of the mouthpiece for oral examination. 8. The method of claim 7,
The measurement unit,
Sinus measuring the angle of inclination with respect to the central line (S) with respect to the horizontal line of the near-infrared photograph, and measuring the angle of inclination with respect to each of the first connecting line (L1) and the second connecting line (L2) with respect to the horizontal line of the near-infrared photograph diagnostic system. 10. The method of claim 9,
The calculation unit,
A sinus diagnosis system that calculates reliability by applying the angle of inclination of the center line (S), the first connecting line (L1), and the second connecting line (L2) to the following equation:

Here, Sa is the magnitude of the angle at which the center line S is inclined with respect to the horizontal line, L1a and L2a are the magnitudes of the inclination angle of the first connection line L1 and the second connection line L2, respectively, and A and B are each is the correction factor. 8. The method of claim 7,
The control unit is
If the reliability is greater than or equal to the reference value, the measurement subject determines that the position of the mouthpiece for oral examination is the correct position, and if the reliability is less than the reference value, it is determined that the position of the mouthpiece for oral examination is not the correct position Sinus Diagnostic System. 12. The method of claim 11,
The control unit is
If it is determined that the position of the subject to be measured is not the correct position of the mouthpiece for oral examination, the sinus diagnosis system for correcting the face posture of the subject to be measured or for re-biting the mouthpiece for oral examination and requesting re-photography.

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