WO2020101380A1

WO2020101380A1 - Optical diagnosis device for skin disease

Info

Publication number: WO2020101380A1
Application number: PCT/KR2019/015512
Authority: WO
Inventors: 장현재
Original assignee: 주식회사 에프앤디파트너스
Priority date: 2018-11-15
Filing date: 2019-11-14
Publication date: 2020-05-22
Also published as: KR102036040B1

Abstract

The present invention relates to an optical diagnosis device for a skin disease and, more specifically, to a handy-type optical diagnosis device for a skin disease which can diagnose at least any one disease from among a skin pigmentation disease, infectious disease, and skin cancer by: checking the base shape of a skin disease of a diagnosee by using light scattered via a contact light source, when diagnosing the skin of the diagnosee; checking the external shape of the skin disease by using the light reflected from the skin surface via a neighboring light source; and checking the shape of a slanted surface (side surface) of a skin disease area of the diagnosee by providing a slanted lighting. The device also provides a three-dimensional effect to the shapes by acquiring three-dimensional shape information by using photometry.

Description

Optical skin disease diagnosis device

The present invention relates to an optical skin disease diagnosis apparatus, and more specifically, as a handy type, when diagnosing a skin of a diagnosed person, a light scattered through a contact light source can be used to check the underlying shape of the skin disease of the diagnosed person, and the surrounding light source. By using the light reflected from the surface of the skin, the appearance of skin diseases can be checked, and by providing inclined illumination, the inclined side (side) shape of the skin disease area of the diagnosed person can be confirmed, thereby allowing skin pigmentation disease, infectious disease, and skin cancer. At least one of the diseases can be diagnosed, and by obtaining 3D shape information using a photometric, it relates to an optical skin disease diagnosis device for providing a three-dimensional shape.

The 3D shape extraction technology is a digital technique for extracting a 3D shape of an object existing in the real world. In the case of a method of manually displaying a 3D shape of an object based on conventional computer graphics, an experienced designer The three-dimensional model is produced by hand, which takes a lot of time and has many disadvantages in terms of quality depending on the designer's proficiency. When modeling an object existing in the real world, it has the disadvantage of having to go through a process of measuring every day.

The 3D shape extraction technology proposed to solve this problem has already been used in many applications.

The three-dimensional shape extraction technology of objects can be divided into contact type and non-contact type. In the case of contact type three-dimensional shape extraction, high-precision three-dimensional measurement is performed by measuring three-dimensional coordinates with the measurement sensor touching the measurement part of the object to be restored. Measurement data can be obtained, but measurement is impossible in the case of an object whose shape changes when a pressure is applied or a high-temperature object. As an alternative, a non-contact 3D shape extraction technique has been proposed.

Non-contact 3D shape extraction technology is a method of extracting a 3D shape using light reflected or transmitted from an object. In various industries, for product quality control, 3D shape of the product itself or the surface can be extracted in real time without contact. The development of technology for a system capable of being continuously required.

The photometric stereo technique is a technique of sequentially applying multiple lights to a target object and extracting the three-dimensional shape of the object using at least three images obtained through the camera. The more the number of lights, the more reliable it is. It is possible to extract the three-dimensional shape of the object.

Recently, a three-dimensional shape is applied by applying photometric stereo techniques to three images obtained by simultaneously irradiating an object with three different wavelength bands of RGB camera, R (red), G (green), and B (blue). A technique for extracting information has been developed.

On the other hand, as interest in skin beauty has increased, many users have confirmed the condition of the skin through various channels such as a skin care room, massage shop, dermatology clinic, and skin care using appropriate cosmetics or medicines.

People's skin conditions vary greatly from season to season, and since individuals vary widely, accurate diagnosis is most important for proper prescription.

In order to diagnose the skin condition, professional medical equipments are provided in dermatology clinics and clinics to enable diagnostic actions such as taking enlarged photographs of the pores.

However, due to the increased interest in skin beauty, the level of knowledge of users' skin has also increased, and users want to know more about the condition of their skin or changes in the condition of the skin.

Nevertheless, it would be very cumbersome to visit the clinic regularly to simply monitor the condition of the skin and to understand the trends in the use of beauty products.

Therefore, it is necessary to provide a method for users to simply check and diagnose their skin condition while carrying.

In addition, cameras, sensors, and the like, which provide comprehensive information on conventional skin, simply photograph the operator by manually contacting the skin and acquire the information.

In addition, when measuring the approximate condition of the facial skin, a 2D image was acquired and analyzed with a high-resolution camera, and in order to obtain comprehensive information about the facial skin, a contact-type local imaging sensor using a sensor other than the high-resolution camera There was a hassle that had to be taken again.

In this case, there was an inconvenience in that the face skin was photographed in front of the high-resolution camera, and then the face was separated from the instrument, and then the contact-type local imaging camera was manually pressed and taken.

On the other hand, recent cosmetics shops, dermatologists, and skin care centers measure and diagnose their skin condition so that they can easily select cosmetics that fit their skin condition, or find problems in their skin condition and solve the solution. You can see various types of skin diagnostic devices to help you find them.

Among these, in particular, a skin diagnosis device using a diagnostic lamp for diagnosing a skin condition is often used by irradiating light with a specific wavelength to the skin and analyzing a specific fluorescence color represented by the skin irradiated with the light.

The ultraviolet lamp is mainly used as the diagnostic lamp.

In the conventional skin diagnosis apparatus using an ultraviolet lamp, it is necessary to darken the surroundings when ultraviolet rays are irradiated so that the ultraviolet rays can be efficiently irradiated to a desired skin region.

Accordingly, a device for diagnosing the skin condition of the face, which is commonly found in cosmetics shops, etc., is equipped with a diagnostic lamp in a box in which the front is open, and a cylindrical black cloth that does not transmit light well along the outer circumferential surface of the open front of the box. By attaching it, the subject to be diagnosed with the skin condition surrounded the cloth on the head and brought the face close to the box equipped with the diagnostic lamp to darken the periphery to measure and diagnose the skin condition.

Such a conventional skin diagnosis device is not guaranteed to be darkened, so there is a fear that measurement and diagnosis cannot be efficiently performed. Also, since the subject has to wrap the cloth around the head as described above, the shape of the head may be damaged, so the diagnosis itself is reluctant. Or you can think of such a process.

In addition, if the fabric is torn or dirty, there is the inconvenience of replacing it frequently.

On the other hand, an attempt has been made to examine the state of the skin by analyzing the light information after irradiating light on the skin and photographing it, but what light should be irradiated and what light should be detected, and the detected light information There is no established method for how to analyze, and urgent development of skin diagnostic methods and devices using these principles is required.

In addition, in the case of a conventional general 3D object surface imaging device, the external size is large and the price is expensive, so it is difficult to check the condition of the skin at any time due to difficulties that ordinary skin shops or individual users do not have. There was a problem in that the device could not provide various illumination wavelength bands and thus could not confirm various trouble states on the object surface.

Therefore, there is a need to provide a device capable of providing a surface image of a skin disease as an image image more easily and precisely.

Meanwhile, in the United States, one person dies from skin cancer every hour due to skin cancer.

In addition, skin cancer has emerged as a very serious social problem since 1 in 5 people are diagnosed with skin cancer every year and 5 million are being treated for skin cancer.

It is important to check these skin cancers periodically because they do not have any symptoms of awareness.

As shown in FIG. 1, skin cancer is mainly carefully examined with the naked eye or a microscope, and when skin cancer is suspected, a biopsy is performed. In particular, biopsy is a pain and wound to remove skin tissue, and a lot of cost and time need.

Recently, a technique for diagnosing skin cancer using the spectral characteristics of a laser has been developed, but all of these methods require a visit to a hospital.

In other words, it is difficult to go to the hospital every time to check regularly.

In addition, as shown in FIG. 1, it is impossible for the general public to judge with the naked eye because the general point and the skin cancer have similar shapes and sizes.

In the case of Fig. 2, even when going to the hospital, the doctor diagnoses skin cancer by visually checking it with a hand-held type diagnostic device, but the hit rate is less than 90%, which requires more accurate diagnostic technology.

(Registered Patent Document) Korean Patent Publication No. 10-2005-0083197

Therefore, the present invention has been proposed in view of the problems of the prior art as described above, and the first object of the present invention is a handy type, the basis of the skin disease of a diagnosed person using light scattered through a contact light source when diagnosing the diagnosed skin. By checking the shape, and using the light reflected from the surface of the skin through an ambient light source, it is possible to check the appearance of the skin disease, and by providing the inclined illumination, it is possible to check the shape of the inclined side (side) of the skin disease area of the diagnoser. , Skin pigment disease, infectious disease, and skin cancer to diagnose at least one or more diseases.

The second object of the present invention is to diagnose skin diseases, in particular skin cancer, by using a difference between an image that illuminates light in a wavelength band absorbed by a skin disease and an image that illuminates light in a wavelength band that is not absorbed by a skin disease.

A third object of the present invention is to have a plurality of layers including at least one or more illumination groups and image information captured through multiple sections of lighting control that divides the illumination groups into at least one or more sections, and the object surface is divided into wavelength bands. Skin disease objects may be classified using different reaction characteristics, and image information according to an optical path is extracted to obtain 3D information of a skin disease object, thereby obtaining a fine surface shape and texture within a 3D shape of the skin disease object. To provide.

The fourth object of the present invention is to obtain an image for diagnosis of a skin disease object optically.

The fifth object of the present invention is to provide three-dimensional shape of a shape by acquiring three-dimensional shape information using a photometric.

In order to achieve the problem to be solved by the present invention, an optical skin disease diagnosis apparatus according to an embodiment of the present invention,

A main body case 100 having a predetermined length and width that can be held by a user;

A camera unit 200 formed on an upper side of the main body case to photograph a video image;

A first lighting group 300 arranged in a plurality of intervals around the periphery of the camera unit to provide illumination to the camera unit;

A cap 400 coupled to the front of the main body case to maintain a certain distance from the object to be photographed;

It includes; a control unit for skin diseases 600 for providing a photographing signal to the lighting unit by providing a lighting control signal to the lighting group with reference to the set lighting control information.

Optical skin disease diagnosis apparatus according to the present invention,

As a handy type, when diagnosing the skin of a diagnosed person, it is possible to check the underlying shape of the skin disease of the diagnosed person using light scattered through a contact light source, and to check the appearance of the skin disease using light reflected from the surface of the skin through an ambient light source. In addition, by providing an inclined light, it is possible to check the inclined side (side) shape of the skin disease part of the diagnoser, thereby enabling diagnosis of at least one or more diseases of skin pigment disease, infectious disease, and skin cancer. Anyone can easily photograph the surface of a skin disease subject and check the surface condition in a three-dimensional shape, and in the case of skin cancer, it has the effect of increasing the probability of skin cancer diagnosis.

In addition, by diagnosing skin diseases, in particular, skin cancer, by using a difference between an image that lights up a wavelength band absorbed by a skin disease and an image that lights up a wavelength band that is not absorbed by a skin disease, the probability of further diagnosing a skin disease is further increased. Works better.

In addition, a plurality of layers including at least one lighting group and a plurality of lighting groups are divided into at least one section, and the image information photographed through the lighting control of a plurality of sections is different, and the object surface reacts differently for each wavelength band. Skin disease objects can be classified using, and image information according to the optical path is extracted to obtain 3D information of the skin disease object, thereby providing a fine surface shape and texture within the 3D shape of the skin disease object.

As an embodiment, when the skin disease object described above is a skin surface that is expected to be skin cancer, a more precise skin disease condition can be diagnosed with respect to a region where the camera is located, thereby preventing skin diagnosis errors that may be mistaken for points. There will be.

In addition, the present invention is characterized in that the optically acquires an image for diagnosing a skin disease object, thereby obtaining fine shape information of the skin disease when diagnosing skin disease through various wavelength bands.

In addition, it is possible to obtain a dark field image by configuring a side light on the cap, thereby providing an effect to make the skin disease site stand out.

In addition, since a point light source image can be obtained by providing illumination for a photometric, it provides an effect of stereoscopically identifying a skin disease site.

1 is an exemplary view showing the shape of a general point and skin cancer.

Figure 2 is an exemplary diagram for diagnosing skin cancer with a handy skin cancer diagnosis device in a hospital.

Figure 3 is a perspective view of an optical skin disease diagnosis apparatus according to an embodiment of the present invention.

Figure 4 is a perspective view from another angle of the optical skin disease diagnosis apparatus according to an embodiment of the present invention.

Figure 5 is a perspective view showing the cap and the lighting group of the optical skin disease diagnosis apparatus according to an embodiment of the present invention.

Figure 6 is an exemplary view showing an example of diagnosing a skin disease through scattered light, inclined light, reflected light of the optical skin disease diagnosis apparatus according to an embodiment of the present invention.

7 is an exemplary view showing that a variety of image images can be obtained when an illumination group of an optical skin disease diagnosis apparatus according to an embodiment of the present invention is configured at regular intervals with lights of different wavelengths.

8 is a group of illumination of a plurality of lights formed in the first illumination group 300, the second illumination group 500, and the third illumination group 700 of the optical skin disease diagnosis apparatus according to an embodiment of the present invention. Or an example showing the sequential lighting control by group.

9 is an exemplary view showing a section control of a plurality of lights formed in the first lighting group 300, the second lighting group 500, and the third lighting group 700 of the optical skin disease diagnosis apparatus according to an embodiment of the present invention.

10 is a block diagram of a controller 600 for skin diseases of an optical skin disease diagnosis apparatus according to an embodiment of the present invention.

11 is a graph comparing the absorption rate on the image image taken by the first light group light source, the second light group light source, and the third light group light source of the optical skin disease diagnosis apparatus according to an embodiment of the present invention.

100: body case

200: camera unit

300: 1st lighting group

400: cap

500: 2nd lighting group

600: control section for skin diseases

700: 3rd lighting group

The following is merely illustrative of the principles of the invention. Therefore, those skilled in the art, although not explicitly described or illustrated in the specification, can implement the principles of the present invention and invent various devices included in the concept and scope of the present invention.

In addition, all conditional terms and examples listed herein are intended to be understood in principle only for the purpose of understanding the concept of the present invention, and should not be construed as being limited to the specifically listed embodiments and conditions. do.

Optical skin disease diagnosis apparatus according to an embodiment of the present invention,

It characterized in that it comprises a; for controlling the skin disease control unit 600 for providing a photographing signal to the lighting by providing a lighting control signal to the lighting group with reference to the set lighting control information.

In addition, it is formed on the lower side of the cap, the second lighting group 500 for providing illumination to the camera unit is arranged a number of intervals; characterized in that further comprises a.

In addition, it is located on the upper side of the second lighting group 500 formed on the cap 400, and is formed by being arranged in a plurality of inclined intervals, thereby providing an inclined light to the camera unit, thereby providing an inclined surface of the skin disease area of the diagnoser ( Side) a third lighting group 700 for providing a shape; characterized in that further comprises.

At this time, the optical skin disease diagnosis device,

It is characterized by being capable of diagnosing at least one or more of skin pigment disease, infectious disease and skin cancer.

At this time, the skin disease control unit 600,

After selecting one of the lighting groups of the first lighting group 300, the second lighting group 500, and the third lighting group 700, and after turning on the light source of the wavelength band absorbed by the skin disease in the lighting group, Acquiring a video image by providing a shooting signal to the camera unit,

After a certain period of time has elapsed, the light source of a wavelength band that is not absorbed by the skin disease in the selected illumination group is turned on, and then a photographing signal is provided to the camera unit to obtain a video image,

It is characterized by determining the difference in absorption rate of the two acquired image images and diagnosing it as a skin disease when the determined difference in absorption rate exceeds a set threshold difference value.

At this time, according to another embodiment, the skin disease control unit 600,

After a certain period of time, a light source in a wavelength band that is not absorbed by a skin disease in any one of the lighting groups except the selected lighting group is turned on, and then a photographing signal is provided to the camera unit to obtain a video image,

In addition, the first lighting group 300,

Providing light reflected on the skin surface to the camera unit 200,

The second lighting group 500,

It is characterized by providing scattered light to the camera unit 200 after the skin penetrates according to the skin contact of the diagnosed person.

In addition, the camera unit 200,

The light scattered through the contact light source of the second lighting group 500 can be used to confirm the underlying shape of the skin disease,

It is characterized in that the appearance of the skin disease can be confirmed by using light reflected from the surface of the skin through the ambient light source of the first lighting group 300.

In addition, the first lighting group 300, the second lighting group 500 and the third lighting group 700,

It is characterized by forming a plurality of at least two light sources of a white light source, an infrared light source, a UV light source, a yellow light source, a red light source, a green light source, and a blue light source at regular intervals.

It is characterized in that the lights in the group are formed of lights irradiating the same wavelength band, and the groups are formed of lights irradiating different wavelength bands.

On the other hand, the skin disease control unit 600,

Group lighting control of multiple lights formed in the first lighting group 300, the second lighting group 500 or the first lighting group 300, the second lighting group 500, the third lighting group 700, or Perform sequential lighting control for each group,

Sections by setting sections of multiple lights formed in the first lighting group 300, the second lighting group 500 or the first lighting group 300, the second lighting group 500, and the third lighting group 700 It is characterized in that the lighting control is not performed.

In addition, the control unit 600 for skin diseases,

Group lighting control of multiple lights formed in the first lighting group 300, the second lighting group 500 or the first lighting group 300, the second lighting group 500, the third lighting group 700, or A lighting control module 610 for each group for performing sequential lighting control for each group,

For setting a section of a plurality of lights formed in the first lighting group 300, the second lighting group 500 or the first lighting group 300, the second lighting group 500, the third lighting group 700 Section setting module 620,

Including at least one or more modules of the metric lighting control module 630 for obtaining the set lighting control information for each section or lighting control information for each group and providing a control signal to a plurality of lights existing in the corresponding section or group By being configured, the optical paths of the first lighting group 300, the second lighting group 500 or the first lighting group 300, the second lighting group 500, and the third lighting group 700 are operated differently. It is characterized in that it is possible to acquire images simultaneously or sequentially from the camera.

On the other hand, the optical skin disease diagnosis device,

It is characterized by providing a three-dimensional shape of the skin by acquiring three-dimensional shape information of the skin disease using a photometric.

Hereinafter, it will be described in detail through an embodiment of the optical skin disease diagnosis apparatus according to the present invention.

3 is a perspective view of an optical skin disease diagnosis apparatus according to an embodiment of the present invention.

Figure 4 is a perspective view as viewed from different angles of the optical skin disease diagnosis apparatus according to an embodiment of the present invention.

3 to 4, the present invention, the optical skin disease diagnosis apparatus, the main body case 100, the camera unit 200, the first lighting group 300, the cap 400, the second lighting group ( 500), it is configured to include a control unit 600 for skin diseases.

Specifically, the main body case 100 has a certain length and width that can be held by the user.

Preferably, the photographing button unit 110 is configured on one side.

For example, the photographing button is configured at any one of the lower side, the side and the upper side of the main body case.

That is, when the user grips, it is configured to be installed in a portion convenient to press a button.

On the other hand, it is obvious that the lighting can be automatically turned on when the power is supplied, and the camera unit can be started without the configuration of the shooting button unit.

In the example of the present invention, it has been described as operating when the photographing button is pressed.

In addition, by installing and configuring the camera unit 200 in front of the inside of the main body case, a video image is photographed when the photographing button unit is pressed.

The camera is configured to be installed inside the lights of the first lighting group 300 to take an image of the surface of the skin disease to be diagnosed. In a preferred embodiment, it is characterized in that it is formed in the central region, preferably. One general camera can be installed and configured, but two or more can be installed and configured as needed, and in another embodiment, a TOF camera is installed and configured.

On the other hand, if a TOF camera is installed and configured as a camera, it is possible to acquire 3D information, specifically, 3D distance information.

The TOF (TIME OF FLIGHT) has color information of RGB and a distance value that is a T value, and thus can replace a conventional stereo camera, thereby providing a cost reduction effect.

In addition, a lens part may be further included on one side of the camera part.

In addition, a plurality of regular intervals are arranged around the outer periphery of the camera unit to install and configure the first lighting group 300 to provide illumination to the camera unit.

In addition, the cap 400 is coupled to the front of the main body case to maintain a certain distance from the skin disease site, which is an object to be photographed, but is brought into contact with the skin of the diagnostician.

That is, as illustrated in FIG. 4, by coupling the cap to the front of the main body case, the light illuminated by the first lighting group is provided to the skin disease object.

In addition, the second lighting group 500 is formed on the lower side of the cap, but is arranged in a plurality of intervals to provide illumination to the camera unit.

In addition, by installing the control unit for skin disease 600 in the interior space of the main body case to provide a lighting control signal to the lighting group with reference to the lighting control information set when obtaining a shooting signal from the shooting button unit, lighting the lights This is to provide a shooting signal to the camera unit.

5 is a perspective view showing a cap and lighting groups of an optical skin disease diagnosis apparatus according to an embodiment of the present invention.

As shown in FIG. 5, the second lighting group is formed on the lower side of the cap, that is, above the skin contact surface of the cap.

At this time, the material of the cap may be formed of a transparent material, or may be formed of an opaque material as necessary.

As described above, when formed of an opaque material, the third lighting group to be described below may be formed above the second lighting group.

6 is an exemplary view showing an example of diagnosing a skin disease through scattered light, inclined light, and reflected light of an optical skin disease diagnosis apparatus according to an embodiment of the present invention.

On the other hand, as shown in Figure 6, according to an additional aspect of the present invention, located on the upper side of the second lighting group 500 formed on the cap 400, is formed by being arranged in a plurality of predetermined intervals at an inclined, camera unit It characterized in that it is configured to further include a third illumination group 700 for providing a tilted surface (side) shape of the skin disease area of the diagnosis by providing the oblique illumination to.

That is, the third lighting group 700 is positioned on the upper side of the second lighting group, and is formed by being arranged in a plurality of inclined intervals, thereby providing an inclined light to the camera unit so that the inclined surface (side) of the skin disease region of the diagnosed person It will provide shape.

Through the above configuration, the optical skin disease diagnosis apparatus of the present invention,

Skin pigment disease means, for example, spots, freckles, etc., and infectious disease means acne bacteria, fungi, and the like.

In addition, among the above-described configuration, the first lighting group 300 provides light reflected on the surface of the skin to the camera unit 200, and the second lighting group 500 penetrates the skin according to the skin contact of the diagnostician and then scatters. Characterized in that the provided light to the camera unit 200.

Accordingly, the camera unit 200 may check the underlying shape of the skin disease using light scattered through the contact light source of the second lighting group 500, and the skin surface through the peripheral light source of the first lighting group 300. It is characterized by being able to confirm the appearance of skin diseases using reflected light.

As shown in FIG. 6, since the second illumination group 500 provides a contact light source on the skin surface, it is possible to check the underlying shape of the skin disease using scattered light.

For example, it can be diagnosed that the size of the skin base of skin cancer is 'A'.

In addition, the first lighting group 300 can check the appearance of the skin disease using light reflected from the skin surface through an ambient light source.

For example, it is possible to diagnose that the external size of skin cancer is 'B'.

In addition, a plurality of third lighting groups 700 are formed to be inclined on the upper side of the second lighting group at regular intervals, thereby providing inclined illumination to the camera unit, thereby providing an inclined surface (side) shape of the skin disease area of the diagnosed person. Is done.

That is, by providing side lighting, a dark field image can be obtained, thereby providing an effect of making the skin cancer region stand out, thereby providing an effect to stereoscopically check the skin cancer region.

As in the above-described embodiment, when configured, for example, when a skin disease object is a skin surface that is expected to be skin cancer, it is possible to diagnose a more precise skin cancer condition with respect to a region where the camera is located, and thus skin that can be mistaken for points. Diagnostic errors can be prevented.

Meanwhile, according to an additional aspect, the first lighting group 300 and the second lighting group 500 and the third lighting group 700 are:

For example, a white light source is arranged at regular intervals, an infrared light source is arranged at a regular interval on one side of the white light source, and a UV light source is arranged on one side of the infrared light source.

As described above, when a lighting group is configured with illuminations of different wavelength bands at regular intervals, various images can be obtained. As shown in FIG. 7, a general image of a skin disease site through a white light source and a skin disease through an infrared light source It is possible to acquire an IR image of a site through a UV light source.

Therefore, for example, in the case of skin cancer, it is possible to diagnose skin cancer by acquiring various images through illuminations of various wavelengths.

Meanwhile, according to another additional aspect, the first lighting group 300 and the second lighting group 500 and the third lighting group 700 are:

For example, the first illumination group 300 has a wavelength range that provides white light, the second illumination group 500 has a wavelength range that provides infrared light, and the third illumination group 700 has a wavelength range that provides UV light. It can also be formed as.

That is, a desired wavelength band of IR, visible light, or UV is applied to each lighting group differently.

On the other hand, the skin disease control unit 600 of the present invention,

Referring to FIG. 8, the collective lighting control for each group of lights is to collectively control the first lighting group 300, the second lighting group 500, and the third lighting group 700. For example, the first lighting group 300 is turned on, the second lighting group 500 is turned on after 0.5 seconds, the third lighting group 700 is turned on after 0.5 seconds, and the like, the lighting group is collectively controlled.

In addition, the sequential control of lighting for each group of lights includes white light on of the first lighting group 300, IR light on after 0.5 sec, UV light on after 0.5 sec, yellow light on after 0.5 sec, red light on after 0.5 sec, 0.5 sec It is to sequentially control the lighting groups, such as blue light on after, green light on after 0.5 seconds, and the like.

Alternatively, the white light of the first lighting group 300 / the second lighting group 500 / the third lighting group 700, after 0.5 seconds, the first lighting group 300 / the second lighting group 500 / the third lighting IR light on of group 700, UV light on first lighting group 300 / second lighting group 500 / third lighting group 700 after 0.5 second, first lighting group 300 after 0.5 second Yellow light on / 2nd lighting group (500) / 3rd lighting group (700) On, after 0.5 seconds, 1st lighting group (300) / 2nd lighting group (500) / 3rd lighting group (700) red light On, after 0.5 seconds

The lighting groups are sequentially controlled, such as blue light on of the first lighting group 300 / second lighting group 500 / third lighting group 700, green light on after 0.5 seconds, and the like.

In this case, by providing illumination for the photo metric, it is possible to obtain a point light source image, thereby providing an effect of stereoscopically identifying a skin disease site.

In addition, the skin disease control unit 600 of the present invention,

Referring to FIG. 9, lighting of groups of lights existing in a section such as A section B on, 0.5 sec after initial A section on is controlled.

As described above, when the lighting control is performed for each section, since the optical path is different, when different image information according to the optical path is extracted, 3D information of the object can be obtained.

As shown in Figure 10, the skin disease control unit 600,

The group-specific lighting control module 610 is provided to the first lighting group 300, the second lighting group 500 or the first lighting group 300, the second lighting group 500, and the third lighting group 700. A group of groups of lights are collectively controlled or a group of lights are sequentially controlled.

For example, if the first first lighting group 300 is turned on, and after 0.5 seconds, the second lighting group 500 is turned on, all lights forming the first first lighting group 300 are turned on, and after 0.5 seconds. All the lights forming the second lighting group 500 are turned on.

The section setting module 620 is formed in the first lighting group 300, the second lighting group 500 or the first lighting group 300, the second lighting group 500, the third lighting group 700 It is for setting up a section of lights.

Referring to FIG. 9, it will be set to sections A to D. In the case of section A, A11 to A13 lighting in the first lighting group, A21 to A24 lighting in the third lighting group, and A31 to A35 in the second lighting group Lighting.

This is defined as lighting control for each section.

In addition, the metric lighting control module 630 obtains the set lighting control information for each section or the lighting control information for each group and provides a control signal to a plurality of lights existing in the corresponding section or group.

In addition, lighting control may be performed by dividing into a specific section of a specific group.

For example, in section A of the first lighting group, only the lights A11 to A13 are lit.

Accordingly, by controlling the optical paths of the first and second lighting groups to operate differently, it is possible to acquire images simultaneously or sequentially from the camera.

Meanwhile, the section setting module 620 may set a section, and may set a lighting group existing in the section.

In other words, section setting and group setting can be performed simultaneously, such as turning on only the first lighting group of the first A section, turning on only the second lighting group of the A section after 0.5 seconds, turning on only the third lighting group of the A section after 0.5 seconds, etc. It can be configured to be able to.

Accordingly, a simultaneous lighting signal can be sent to a plurality of lights present in all groups, and a lighting signal may be sent by dividing into groups or by sections or by dividing into specific sections of a specific group, and sequentially lighting signals. .

Through this, images of various wavelength bands can be acquired, and at the same time, various optical paths can be acquired, so that the surface of the skin disease area can be classified by using the characteristic that the surface of the skin disease site reacts differently for each wavelength band. By extracting image information and acquiring 3D information of the skin disease region, it is possible to provide a fine surface shape and texture within the 3D shape of the skin disease region.

On the other hand, according to another additional aspect, the skin disease control unit 600,

It characterized in that it is configured to further include a set of lighting control information for each section or lighting control information for each group, and a memory module 640 for storing shape information of the photographed skin disease site.

It may be configured to further include an image processing module for processing in a three-dimensional shape through the image information of the skin disease portion stored in the memory module.

For example, if the subject is a skin cancer site, the characteristics of the skin cancer may be analyzed by injecting a specific wavelength band that fluorescently reacts to the skin cancer.

In addition, when image information along the optical path is extracted, it is possible to obtain 3D information of skin cancer.

At this time, the skin disease control unit 600, in order to obtain three-dimensional information, the three-dimensional shape generation module, the surface shape generation module, the three-dimensional shape surface matching module further includes.

Specifically, the 3D shape generation module is to generate a 3D shape by obtaining a 3D value when the camera is a TOF camera, and the surface shape generation module is to generate a surface shape based on photometric image information. .

At this time, the surface shape information is matched with the 3D shape information generated from the 3D shape generation module and the surface shape generation module by the 3D shape surface matching module.

In other words, if matched, it is possible to provide a fine shape and texture of the skin cancer surface.

Meanwhile, according to another additional aspect of the present invention, the control unit 600 for skin diseases,

It characterized in that it further comprises a; wireless communication module 650 for transmitting the shape information of the skin disease target surface stored in the memory module 640 to the external terminal 2000 through wireless communication.

Therefore, the shape information of the skin disease target surface stored in the memory module 640 is transmitted to an external terminal through wireless communication.

When configured as described above, it is possible to check in real time the image information on the surface of the skin disease target currently being photographed through the screen of the external terminal 2000.

In addition, by providing the matched 3D stereoscopic image to the cloud server 3000 configured at a remote location, the cloud server generates surface diagnosis information for skin diseases.

When configured as described above, users can obtain the corresponding surface diagnosis information by accessing the cloud server anytime, anywhere through an external terminal, for example, a smart device, having the surface diagnosis information of the skin disease.

To this end, the diagnostic app is mounted on the smart device.

That is, by being able to diagnose a more precise skin condition, it is possible to prevent skin diagnosis errors.

On the other hand, the skin disease control unit 600,

Extracts image image information obtained by lighting of the first lighting group, image image information obtained by lighting of the second lighting group, and image image information obtained by lighting of the third lighting group to extract absorption rates for each image image information. It is configured to further include a skin disease diagnosis unit for diagnosing a skin disease when the calculated difference in absorption rate is higher than the threshold difference value.

In more detail, the skin disease control unit 600, specifically, the skin disease diagnosis unit,

For example, after selecting the first lighting group 300, and turning on a red light source that is a light source of a wavelength band absorbed by a skin disease in the corresponding lighting group, a photographing signal is provided to the camera unit to obtain a video image.

Thereafter, after a certain period of time, the green light source, which is a light source of a wavelength band that is not absorbed by the skin disease in the selected first lighting group, is turned on, and a photographing signal is provided to the camera unit to obtain a video image.

Subsequently, the difference in absorption rate between the two acquired image images is determined, and if the determined difference in absorption rate exceeds the set threshold difference value, it is diagnosed as a skin disease.

More specifically, referring to FIG. 11, when the first light group red light source is lit, the first light image obtained by analyzing the first image image is calculated, the absorption rate is 55%, the first light group green light source is As a result of analyzing the second image image obtained when it is lit and calculating the absorption rate, when the absorption rate is 10%, the threshold difference value is set to 40%.

At this time, since the difference between the first image image absorption rate of 55% and the second image image absorption rate of 10% was 45%, which exceeded the threshold difference of 40%, this was analyzed (diagnosed) as a skin disease (for example, skin cancer). will be.

In the case of the above-described absorption rate calculation, in general, when the light emission is 45% in the case of 100% light emission, the absorption rate is 55%, which means that the skin disease (eg, skin cancer) is absorbed.

Since the technique of calculating the absorption rate through the above-described image image is a technique known to those skilled in the art for processing the image, detailed description is omitted.

On the other hand, as another example lighting group, the skin disease control unit 600, specifically, the skin disease diagnosis unit,

For example, after selecting the first lighting group 300, lighting a red light source, which is a light source of a wavelength band absorbed by a skin disease in the first lighting group, and then providing a photographing signal to a camera unit to obtain a video image do.

Thereafter, after a certain period of time, the green light source, which is a light source of a wavelength band that is not absorbed by skin diseases in the second lighting group among the second lighting group and the third lighting group except for the selected first lighting group, is turned on, and then the camera unit is turned on. A video image is obtained by providing a shooting signal.

More specifically, referring to FIG. 11, when the first light group red light source is turned on, the first light image obtained is analyzed and the absorption rate is calculated. As a result, the light absorption rate is 55% and the second light group green light source is As a result of analyzing the second image image obtained when it is lit and calculating the absorption rate, when the absorption rate is 10%, the threshold difference value is set to 40%.

On the other hand, in the general case, as shown in the graph on the right side of FIG. 11, the difference in absorption between light groups in the illumination group is not large.

This is because the probability of absorbing light in the case of dots is significantly less than that of skin cancer, so that the difference in absorption rate is not large when analyzing a video image taken after lighting by the first light group light source, the second light group light source, and the third light group light source.

On the other hand, the above-mentioned absorption rate threshold difference value is collected by configuring the machine learning skin disease learning unit for setting and learning the set number of skin disease (eg, skin cancer) images using a machine learning technique in the cloud server 3000 By learning the absorption rate in the skin disease image, the optimal absorption rate threshold difference value is set to increase the accuracy of skin disease diagnosis.

That is, the accuracy of skin disease diagnosis is further enhanced through the machine learning skin disease learning department.

According to the present invention, as a handy type, when diagnosing the skin of a diagnosed person, it is possible to confirm the underlying shape of the skin disease of the diagnosed person using light scattered through a contact light source, and skin disease using light reflected from the surface of the skin through an ambient light source It is possible to check the external appearance of the skin, and by providing an inclined light, it is possible to check the shape of the inclined side (side) of the skin disease area of the diagnoser, so that at least one or more of skin pigment disease, infectious disease and skin cancer can be diagnosed. By doing so, anyone can easily photograph the surface of a skin disease object at a low price, and exhibit the effect of checking the surface condition in a three-dimensional shape and increasing the probability of skin cancer diagnosis in case of skin cancer.

In addition, although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims. In addition, various modifications can be carried out by a person having ordinary knowledge, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

The optical skin disease diagnosis apparatus according to the present invention is a handy type, and when diagnosing the skin of a diagnoser, it is possible to check the underlying shape of the skin disease of the diagnoser using light scattered through a contact light source, and is reflected from the skin surface through an ambient light source. The appearance of the skin disease can be confirmed by using light, and at least one or more of skin pigment disease, infectious disease, and skin cancer can be identified by providing an inclined light to check the shape of the inclined side (side) of the skin disease area of the diagnosis. By making the diagnosis possible, anyone can easily photograph the surface of a skin disease object at a low price and show the effect of checking the surface condition in a three-dimensional shape and increase the probability of skin cancer diagnosis in case of skin cancer. It is also a highly probable invention.

Claims

In the optical skin disease diagnosis device,

A main body case 100 having a predetermined length and width that can be held by a user;

A camera unit 200 formed on an upper side of the main body case to photograph a video image;

A first lighting group 300 arranged in a plurality of intervals around the periphery of the camera unit to provide illumination to the camera unit;

A cap 400 coupled to the front of the main body case to maintain a certain distance from the object to be photographed;

Optical skin disease, characterized in that comprises a; for controlling the skin disease control unit 600 for providing a photographing signal to the lighting by providing a light control signal to the lighting group with reference to the set lighting control information; Diagnostic device.
According to claim 1,

It is formed on the lower side of the cap, the second illumination group 500 for providing illumination to the camera unit is arranged at regular intervals; optical skin disease diagnosis apparatus characterized in that further comprises a.
The method according to claim 1 or 2,

Located on the upper side of the second lighting group 500 formed on the cap 400, and formed by being arranged in a plurality of inclined intervals, thereby providing an inclined light to the camera unit, so that the inclined surface (side) of the skin disease area of the diagnoser An optical skin disease diagnosis device, characterized in that further comprises a; third lighting group (700) for providing a shape.
The method according to any one of claims 1 to 3,

Optical skin disease diagnosis device,

Optical skin disease diagnosis device, characterized in that capable of diagnosing at least one or more of skin pigment disease, infectious disease and skin cancer.
The method according to any one of claims 1 to 3,

The skin disease control unit 600,

After selecting one of the lighting groups of the first lighting group 300, the second lighting group 500, and the third lighting group 700, and after turning on the light source of the wavelength band absorbed by the skin disease in the lighting group, Acquiring a video image by providing a shooting signal to the camera unit,

After a certain period of time has elapsed, the light source of a wavelength band that is not absorbed by the skin disease in the selected illumination group is turned on, and then a photographing signal is provided to the camera unit to obtain a video image,

An optical skin disease diagnosis apparatus for determining the difference in absorption rate between the two acquired image images and diagnosing as a skin disease when the determined difference in absorption rate exceeds a set threshold difference value.
The method according to any one of claims 1 to 3,

The skin disease control unit 600,

After selecting one of the lighting groups of the first lighting group 300, the second lighting group 500, and the third lighting group 700, and after turning on the light source of the wavelength band absorbed by the skin disease in the lighting group, Acquiring a video image by providing a shooting signal to the camera unit,

After a certain period of time, a light source in a wavelength band that is not absorbed by a skin disease in any one of the lighting groups except the selected lighting group is turned on, and then a photographing signal is provided to the camera unit to obtain a video image,

An optical skin disease diagnosis apparatus for determining the difference in absorption rate between the two acquired image images and diagnosing as a skin disease when the determined difference in absorption rate exceeds a set threshold difference value.
The method according to any one of claims 1 to 3,

The first lighting group 300,

Providing light reflected on the skin surface to the camera unit 200,

The second lighting group 500,

An optical skin disease diagnosis device characterized by providing scattered light to the camera unit (200) after being transmitted through the skin according to the skin contact of the diagnosed person.
The method according to any one of claims 1 to 3,

The camera unit 200,

The light scattered through the contact light source of the second lighting group 500 can be used to confirm the underlying shape of the skin disease,

Optical skin disease diagnosis device characterized in that the appearance of the skin disease can be confirmed by using the light reflected from the skin surface through the peripheral light source of the first lighting group (300).
The method according to any one of claims 1 to 3,

The first lighting group 300, the second lighting group 500 and the third lighting group 700,

An optical skin disease diagnosis apparatus characterized by forming a plurality of at least two light sources of a white light source, an infrared light source, a UV light source, a yellow light source, a red light source, a green light source, and a blue light source at regular intervals.