KR102406999B1 - System for sinus diagnosis and method for determining sinus status performed by the same - Google Patents

Abstract

The present invention relates to a sinus diagnosis system and a method for determining a sinus state performed by the sinus diagnosis system.
According to the present invention, in a sinus diagnosis system and a method for determining a sinus state performed by the system, a sinus measurement device by emitting an LED attached to the mouthpiece for oral examination in a state in which the subject to be measured holds the mouthpiece for oral examination in his/her mouth obtaining a near-infrared picture by photographing the face of the subject to be measured through the near-infrared camera included in the step, respectively setting a first point area, a second point area, and a third point area on the face photographed in the near-infrared photograph; The step of photographing the face of the measurement subject a plurality of times while changing the wavelength of the LED attached to the mouthpiece for oral irradiation, the first point area, the second point area and the third point for each of the plurality of pictures taken calculating an average value of pixel values corresponding to the region, and calculating the concentration index of the measurement target by using the pixel average value for each of the first to third point regions.
As described above, according to the present invention, by diagnosing the state of the sinuses using a plurality of wavelengths, it is possible to grasp the water content index of the pus present in the sinuses.

Description

Sinus diagnosis system and method for determining sinus status performed by it

The present invention relates to a sinus diagnosis system and a method for determining a sinus state performed by the system, and to a sinus diagnosis system for accurately determining a state inside a sinus using a plurality of wavelengths, and a method for determining a sinus state performed by the system.

Currently, the number of patients with sinusitis (sinusitis) due to air pollution such as fine dust is continuously increasing, and as of 2016, it 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.

Therefore, there is a need for a technology that can accurately measure sinusitis by consistently interpreting data without using optical equipment such as X-ray or CT.

However, when diagnosing the condition of the sinuses using a single wavelength, there is a disadvantage that characteristics such as the degree of clarity or turbidity of the pus present in the sinuses cannot be known.

Therefore, there is a need for a method for confirming the characteristics of the pus present in the sinuses.

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).

An object of the present invention is to provide a sinus diagnosis system for accurately judging the state of the inside of the sinuses using a plurality of wavelengths, and a sinus state determination method performed by the system.

According to an embodiment of the present invention for achieving this technical problem, in a sinus diagnosis system and a method for determining a sinus state performed by the same, in a state in which the subject to be measured puts the mouthpiece for oral examination in his mouth, the mouthpiece for oral examination Obtaining a near-infrared photo by photographing the face of the subject to be measured through the near-infrared camera included in the sinus measuring device by emitting an LED attached to the sinus measuring device, a first point area, a second point area, and Setting a third point area, respectively, photographing the face of the subject to be measured multiple times while changing the wavelength of the LED attached to the mouthpiece for oral irradiation, the first point for each of the plurality of photographed photos calculating an average value of pixel values corresponding to the region, the second point region, and the third point region, and calculating the patient's agricultural index by using the pixel average value for each of the first to third point regions. do.

The step of photographing the face of the subject to be measured a plurality of times includes obtaining a first picture by photographing the face of the subject to be measured in a state in which the wavelength of the LED is set to a first wavelength, and the wavelength of the LED is set to a second wavelength It may include obtaining a second picture by photographing the face of the subject to be measured in a state in which the wavelength is increased.

The first point region includes first and second imaginary vertical lines passing through each of the inner and outer points of the eye in the photo taken through the near-infrared camera, and virtual first and second passing through each of the lip and nose endpoints A rectangular region centered on the first point P1 having the largest pixel value in the region where the second horizontal lines intersect, and the second point region includes the first and second vertical lines in the photographed picture; A rectangular region centered on the second point P2 having the largest pixel value in the region where the fourth horizontal line passing through the center intersects between the second horizontal line and the virtual third horizontal line passing through the center point of the pupil, , the third point area is centered on a third point P3 having the largest pixel value in an area where the first and second vertical lines, the third horizontal line, and the fourth horizontal line intersect in the photographed picture. It may be a rectangular region in which

The calculating of the agricultural index may be performed using the following equation.

는 상기 제2 사진에서의 제2 포인트 영역의 픽셀 평균값, A는 상기 제1 사진에서의 제1 포인트 영역의 픽셀 평균값,

는 상기 제2 사진에서의 제1 포인트 영역의 픽셀 평균값이다. Here, B is the pixel average value of the second point area in the first photo,

is the pixel average value of the second point region in the second picture, A is the pixel average value of the first point region in the first picture,

is the average pixel value of the first point area in the second picture.

The first wavelength may have a value of 840 nm to 860 nm, and the second wavelength may have a value of 930 nm to 950 nm.

The absorption rate is changed according to the size of the wavelength irradiated from the LED and the moisture content in the sinuses, and the concentration index may be a water content index of the concentration present in the sinuses.

According to another embodiment of the present invention, in the sinus diagnosis system for determining the state of the sinuses, in a state in which the subject to be measured holds the mouthpiece for oral examination in his mouth, the LED attached to the mouthpiece for the examination of the oral cavity is emitting light to measure the sinuses An acquisition unit that acquires a near-infrared picture by photographing the face of the subject to be measured through a near-infrared camera included in the device, and setting a first point area, a second point area, and a third point area in the face photographed in the near-infrared photograph, respectively Area setting unit, a photographing unit for photographing the face of the subject to be measured multiple times while changing the wavelength of the LED attached to the mouthpiece for oral irradiation, the first point area, the second point for each of the plurality of photographed photos and a calculator configured to calculate an average value of pixel values corresponding to the region and the third point region, and a controller configured to calculate the concentration index of the patient by using the pixel average value for each of the first to third point regions.

As described above, according to the present invention, by diagnosing the state of the sinuses using a plurality of wavelengths, it is possible to grasp the water content index of the pus present in the sinuses.

In addition, since the mucus characteristics of the pus can be grasped using the water content index of the pus, a high-reliability diagnosis is possible.

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.
4 is a flowchart illustrating a sinus diagnosis system and a sinus state determination method performed by the sinus diagnosis system according to an embodiment of the present invention.
FIG. 5 is an exemplary view for explaining a near-infrared photograph taken in step S410 of FIG. 4 .
6 is a view for explaining a first divided area to a third divided area according to an embodiment of the present invention.
7 is an exemplary view illustrating a set first point area to a third point area according to an embodiment of the present invention.
8 is a view showing the water absorption rate for each wavelength.
9 is an exemplary diagram illustrating pixel average values calculated in P1, P2, and P3 according to an embodiment of the present invention.

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 is a 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 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 an acquisition unit 210 , a region setting unit 220 , a photographing unit 230 , an operation unit 240 , and a control unit 250 . do.

First, the acquisition unit 210 emits LEDs 140a, 140b, 140c attached to the mouthpiece 100 for oral irradiation in a state in which the subject to be measured holds the mouthpiece 100 for oral irradiation in their mouth, and a near-infrared camera A near-infrared photo is obtained by photographing the face of the subject to be measured.

Next, the area setting unit 220 sets the first point area, the second point area, and the third point area on the face photographed in the near-infrared photograph, respectively.

Next, the photographing unit 230 takes a plurality of times the face of the measurement target while changing the wavelength of the LED (140a, 140b, 140c) attached to the mouthpiece 100 for oral irradiation.

Then, the calculator 240 calculates an average value of pixel values corresponding to the first point area, the second point area, and the third point area for each of the plurality of photographed photos.

Next, the controller 250 calculates the patient's concentration index by using the pixel average value for each of the first to third point areas.

Hereinafter, a sinus diagnosis system according to an embodiment of the present invention and a sinus state determination method performed by the system will be described with reference to FIGS. 4 to 9 .

4 is a flowchart illustrating a sinus diagnosis system and a sinus state determination method performed by the sinus diagnosis system according to an embodiment of the present invention.

First, when the measurement subject bites the mouthpiece 100 for oral irradiation in their mouth, the sinus measuring device 200 emits LEDs 140a, 140b , 140c attached to the mouthpiece 100 for oral irradiation, and a near-infrared camera A near-infrared photo is obtained by photographing the face of the subject to be measured through (S410).

FIG. 5 is an exemplary view for explaining a near-infrared photograph taken in step S410 of FIG. 4 .

Then, as shown in FIG. 5 , the sinus measuring device 200 acquires a near-infrared photograph.

At this time, as shown in FIG. 5 , the sinus measuring device 200 sets the outer point of the right eye (E1), the inner point of the right eye (E2), and the inner point of the left eye in the reference photo to clearly distinguish the facial regions. (E3), select the outer point of the left eye (E4).

Also, the sinus measuring apparatus 200 selects the right end point N1 of the nose, the left end point N2 of the nose, the right end point M1 of the lips, and the left end point M2 of the lips.

Next, the sinus measuring apparatus 200 sets a first point area, a second point area, and a third point area on the face photographed in the near-infrared photograph (S420)

Hereinafter, a process of setting the first point area, the second point area, and the third point area in step S420 will be described with reference to FIGS. 6 and 10 .

The sinus measuring apparatus 200 according to an embodiment of the present invention divides each of the three corrected near-infrared photos into a plurality of divided regions in order to set each point.

6 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. 6 , 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), the right side of the three pictures taken through the near-infrared camera. An imaginary line passing through the inner point of the eye (E2), the inner point of the left eye (E3), and the outer point of the left eye (E4) is shown.

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. 6 , 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.

As shown in FIG. 6 , when a plurality of divided areas are set, the sinus measuring apparatus 200 sets each point for each divided area.

7 is an exemplary view illustrating a set first point area to a third point area according to an embodiment of the present invention.

As shown in FIG. 7 , the first to third points are set in the near-infrared photograph, and are set on the left and right sides of the face in the near-infrared photograph.

As shown in FIG. 7 , the sinus measuring apparatus 200 sets the first points LP1 and RP1 having the largest pixel values in the left and right first divided regions, respectively, and the largest pixel values in the left and right second divided regions. The second points LP2 and RP2 having , are set, respectively, and the third points LP3 and RP3 having the largest pixel value in the left and right third divided regions are respectively 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, as shown in FIG. 7 , in the sinus measuring apparatus 200 , the first point area is set as a rectangular area having a predetermined size with respect to each of the first points LP1 and RP1 .

In addition, the second point area and the third point area are set for each of the second points LP2 and RP2 and the third points LP3 and RP3 in the same manner as the first point area.

Next, the sinus measuring device 200 takes the first photo by taking the face of the subject to be measured in a state where the wavelength of the LEDs 140a, 140b , 140c attached to the mouthpiece 100 for oral irradiation is set to the first wavelength. to obtain (S430).

Here, the first wavelength is a wavelength in the range of 840 nm to 860 nm, and preferably has a value of 850 nm.

In addition, the sinus measuring device 200 takes a second photo by taking the face of the subject to be measured in a state where the wavelength of the LEDs 140a, 140b , 140c attached to the mouthpiece 100 for oral irradiation is set to the second wavelength. Acquire (S440).

Here, the second wavelength is a wavelength in the range of 930 nm to 950 nm, and preferably has a value of 940 nm.

In addition, in the present invention, the face of the subject to be measured is photographed using two wavelengths having different sizes, but the number of wavelengths used may be changed according to the shape of the face of the subject or the setting of the sinus measuring apparatus 200 . .

In this way, the sinus measuring device 200 uses a plurality of wavelengths to accurately measure the farm index of the measurement target.

8 is a view showing the water absorption rate for each wavelength.

As shown in FIG. 8 , it can be confirmed that the absorption rate at which light is absorbed by water is different depending on the size and type of wavelength.

Therefore, according to an embodiment of the present invention, LED light having different wavelengths is irradiated to calculate the concentration index in the sinus of the subject to be measured using a plurality of different wavelengths.

Next, the sinus measuring apparatus 200 calculates an average value of pixel values corresponding to the first point area to the third point area for each of the first and second photos having different wavelengths ( S450 ).

9 is an exemplary diagram illustrating pixel average values calculated in a first point area to a third point area according to an embodiment of the present invention.

As shown in FIG. 9 , the sinus measuring apparatus 200 calculates an average pixel value in the first point area to the third point area with respect to the first picture taken with a wavelength of 850 nm.

That is, the sinus measuring apparatus 200 calculates an average pixel value by averaging pixel values of pixels included in each point area.

Similarly, the sinus measuring apparatus 200 calculates an average pixel value in the first to third point areas with respect to the second picture taken with a wavelength of 940 nm.

At this time, since the maximum pixel value is 255 and the minimum pixel value is 0, the average value of the calculated pixel values is determined to be a value between 0 and 255.

9 shows the pixel average values calculated for the first to third point regions corresponding to the right side of the face for convenience of explanation, and the pixel average value can also be obtained for the left side of the face in the same way.

Then, the sinus measuring apparatus 200 calculates the concentration index of the subject to be measured as in Equation 1 below by using the pixel average value for each of the first to third point areas calculated in step S450 ( S460 ).

는 제2 사진에서의 제2 포인트 영역의 픽셀 평균값, A는 제1 사진에서의 제1 포인트 영역의 픽셀 평균값,

는 제2 사진에서의 제1 포인트 영역의 픽셀 평균값이다. Here, B is the pixel average value of the second point area in the first photo,

is the pixel average value of the second point region in the second picture, A is the pixel average value of the first point region in the first picture,

is the average pixel value of the first point area in the second picture.

는 187, A는 158,

는 142이고, 제1파장과 제2 파장에서의 흡수율 차이 값이 20%이므로, 수학식 1에 의해 농지수는 3.20 값으로 연산된다.Applying the case of Figure 9, B is 224,

is 187, A is 158,

is 142, and since the difference between the absorption rates at the first wavelength and the second wavelength is 20%, the concentration index is calculated as a value of 3.20 by Equation (1).

Here, the phlegm index refers to the water content index of the pus present in the sinuses.

Then, the sinus measuring device 200 provides the calculated agricultural index for each measurement subject as the sinus index.

As such, according to an embodiment of the present invention, by diagnosing the state of the sinuses using a plurality of wavelengths, it is possible to determine the water content index of the pus present in the sinuses.

In addition, since the mucus characteristics of the pus can be grasped using the water content index of the pus, a high-reliability diagnosis is possible.

Although the present invention has been described with reference to the embodiment shown in the drawings, which is merely exemplary, those skilled 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,
140a, 140b , 140c: LED, 150a, 150b: recognition mark,
200: sinus measurement device, 210: acquisition unit,
220: area setting unit, 230: shooting unit,
240: arithmetic unit, 250: control unit

Claims (12)

In the sinus state determination method performed by the sinus diagnosis system,
A near-infrared photograph is obtained by photographing the subject's face through the near-infrared camera included in the sinus measuring device by emitting an LED attached to the mouthpiece for oral irradiation in a state where the subject to be measured holds the mouthpiece for oral irradiation in his/her mouth step to do,
setting a first point area, a second point area, and a third point area on the face taken in the near-infrared photograph, respectively;
photographing the face of the subject to be measured multiple times while changing the wavelength of the LED attached to the mouthpiece for oral irradiation;
calculating an average value of pixel values corresponding to the first point area, the second point area, and the third point area for each of the plurality of photos; and
Comprising the step of calculating the concentration index of the subject to be measured by using the pixel average value for each of the first to third point areas,
The first point area is
In the photo taken through the near-infrared camera, virtual first and second virtual lines passing through the inner and outer points of the right eye, respectively, and virtual first and second horizontal lines passing through the tip of the lips and the tip of the nose intersect each other A rectangular region centered on the right first point R P1 having the largest pixel value within, and
The third and fourth imaginary vertical lines passing through the inner and outer corners of the left eye, and the first and second imaginary horizontal lines passing through the lip and nose, respectively, intersect the left eye having the largest pixel value. It includes an area in the form of a rectangle centered on one point (L P1),
The second point area is
In the photographed picture, the first and second vertical lines, the second horizontal line, and the fourth horizontal line passing through the center between the virtual third horizontal line passing through the center point of the pupil intersect the right third line having the largest pixel value. an area in the form of a rectangle centered on two points R P2, and
A left second point (L P2) having the largest pixel value in an area where the third and fourth vertical lines and a fourth horizontal line passing through the center between the second horizontal line and an imaginary third horizontal line passing through the center point of the pupil intersect ), including a rectangular region centered on
The third point area is
A rectangular region centered on the third right point R P3 having the largest pixel value in the region where the first and second vertical lines, the third horizontal line, and the fourth horizontal line intersect in the photographed picture. , and
Sinus diagnosis including a rectangular region centered on a left third point L P3 having the largest pixel value in a region where the third and fourth vertical lines, the third horizontal line, and the fourth horizontal line intersect A method for determining sinus conditions performed by the system. According to claim 1,
The step of photographing the face of the subject to be measured a plurality of times,
obtaining a first picture by photographing the face of the subject to be measured in a state in which the wavelength of the LED is set to the first wavelength; and
A sinus state determination method performed by a sinus diagnosis system, comprising the step of acquiring a second picture by photographing the face of the subject to be measured in a state in which the wavelength of the LED is increased to a second wavelength. delete According to claim 1,
The step of calculating the agricultural index is,
A sinus state determination method performed by a sinus diagnosis system that calculates using the following equation:

Here, B is the pixel average value of the second point area in the first photo,

is the pixel average value of the second point region in the second picture, A is the pixel average value of the first point region in the first picture,

is the average pixel value of the first point area in the second picture. 3. The method of claim 2,
The first wavelength has a value of 840 nm to 860 nm, and the second wavelength has a value of 930 nm to 950 nm. 5. The method of claim 4,
The absorption rate is
It is changed according to the size of the wavelength irradiated from the LED and the content of moisture in the sinuses,
The farm index is,
A method for determining a sinus state performed by a sinus diagnosis system that is a water content index of pus present in the sinuses. In the sinus diagnosis system for determining the state of the sinuses,
A near-infrared photograph is obtained by photographing the subject's face through the near-infrared camera included in the sinus measuring device by emitting an LED attached to the mouthpiece for oral irradiation in a state where the subject to be measured holds the mouthpiece for oral irradiation in his/her mouth acquiring department,
an area setting unit for setting a first point area, a second point area, and a third point area, respectively, in the face photographed in the near-infrared photograph;
A photographing unit for photographing the face of the subject to be measured multiple times while changing the wavelength of the LED attached to the mouthpiece for oral irradiation;
a calculator for calculating an average value of pixel values corresponding to the first point area, the second point area, and the third point area for each of the plurality of photos; and
a control unit for calculating the concentration index of the subject to be measured by using the pixel average value for each of the first to third point areas;
The first point area is
In the photo taken through the near-infrared camera, virtual first and second virtual lines passing through the inner and outer points of the right eye, respectively, and virtual first and second horizontal lines passing through the tip of the lips and the tip of the nose intersect each other A rectangular region centered on the right first point R P1 having the largest pixel value within, and
The third and fourth imaginary vertical lines passing through the inner and outer corners of the left eye, and the first and second imaginary horizontal lines passing through the lip and nose, respectively, intersect the left eye having the largest pixel value. It includes an area in the form of a rectangle centered on one point (L P1),
The second point area is
In the photographed picture, the first and second vertical lines, the second horizontal line, and the fourth horizontal line passing through the center between the virtual third horizontal line passing through the center point of the pupil intersect the right third line having the largest pixel value. an area in the form of a rectangle centered on two points R P2, and
A left second point (L P2) having the largest pixel value in an area where the third and fourth vertical lines and a fourth horizontal line passing through the center between the second horizontal line and an imaginary third horizontal line passing through the center point of the pupil intersect ), including a rectangular region centered on
The third point area is
A rectangular region centered on the third right point R P3 having the largest pixel value in the region where the first and second vertical lines, the third horizontal line, and the fourth horizontal line intersect in the photographed picture. , and
Sinus diagnosis including a rectangular region centered on a left third point L P3 having the largest pixel value in a region where the third and fourth vertical lines, the third horizontal line, and the fourth horizontal line intersect system. 8. The method of claim 7,
The photographing unit,
A first picture is obtained by photographing the face of the subject to be measured while the wavelength of the LED is set to the first wavelength, and the face of the subject to be measured is photographed while the wavelength of the LED is increased to the second wavelength. 2 Sinus diagnostic system to acquire pictures. delete 8. The method of claim 7,
The calculation unit,
A sinus diagnosis system that calculates using the following equation:

Here, B is the pixel average value of the second point area in the first photo,

is the pixel average value of the second point region in the second picture, A is the pixel average value of the first point region in the first picture,

is the average pixel value of the first point area in the second picture. 9. The method of claim 8,
The first wavelength has a value of 840 nm to 860 nm, and the second wavelength has a value of 930 nm to 950 nm. 11. The method of claim 10,
The absorption rate is
It is changed according to the size of the wavelength irradiated from the LED and the content of moisture in the sinuses,
The farm index is,
A sinus sinus diagnosis system that is a water content index of pus present in the sinuses.

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