KR-20260062745-A - MOBILE SKIN DIAGNOSTIC DEVICE

KR20260062745AKR 20260062745 AKR20260062745 AKR 20260062745AKR-20260062745-A

Abstract

A mobile skin diagnostic device is disclosed. The mobile skin diagnostic device comprises: a light source device capable of penetrating from the epidermal layer of the skin to the dermal layer; a shooting unit that acquires an image of the upper part of the dermal and subcutaneous tissue incident through the light source device; an inertial sensor that calculates posture data and position data of the shooting unit by measuring angular acceleration or acceleration; and a processor connected to the inertial sensor that calculates and records posture data and position data when the shooting unit photographs the skin, and processes the image captured by the shooting unit by aligning the image; a processing unit that receives image data of the upper part of the dermal and subcutaneous tissue and inertial data from the image acquisition device and corrects them to align the entire image of the face; and a skin diagnostic unit that receives the aligned image data of the entire face from the processing unit and generates and displays diagnostic data suitable for the user. By including these components, real-time observation of not only the epidermis but also the dermal layer is possible without difficulty in dermatology or aesthetics, thereby reducing deviations in treatment results caused by different experience levels.

Inventors

김종철
장현진

Assignees

김종철
장현진

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (8)

An image acquisition device comprising: a light source device capable of penetrating from the epidermal layer of the skin to the dermal layer; a shooting unit for acquiring an image of the upper part of the dermis and subcutaneous tissue incident through the light source device; an inertial sensor for calculating attitude data and position data of the shooting unit by measuring angular acceleration or acceleration; and a processor connected to the inertial sensor for calculating and recording attitude data and position data when the shooting unit photographs the skin, and for aligning and processing the image captured by the shooting unit. A processing unit that receives image data and inertial data of the upper dermis and subcutaneous tissue from the image acquisition device and corrects them to align the entire image of the face; and A skin diagnosis unit that receives image data of the entire face aligned from the above processing unit and generates and displays diagnostic data suitable for the user. A mobile skin diagnostic device characterized by including
In paragraph 1, The above light source device comprises a near-infrared light source capable of outputting short-wavelength near-infrared light in the wavelength range of 820 to 940 nm, a white LED light source in the visible light range, a polarizing source having polarization attached to the white LED light source, and a UV light source having a wavelength of less than 420 nm, wherein the near-infrared light source, the white LED light source, the polarizing source, and the UV light source are arranged at 90° intervals on a plane, characterized in that the mobile skin diagnostic device.
In paragraph 1, The above-mentioned imaging unit is, An image sensor that captures the user's skin and generates at least two or more image data; and A camera equipped with an autofocus lens that automatically focuses on the skin of a user being photographed, and an image sensor that captures image data acquired through the autofocus lens. A mobile skin diagnostic device characterized by including
In paragraph 3, The above processing unit is, A data acquisition unit that acquires image data and inertial data from the above image acquisition device; A data correction unit that precisely corrects acquired image data and pose data; and An image matching unit that aligns the entire image of the face using corrected posture data and image data A mobile skin diagnostic device characterized by including
In paragraph 4, A mobile skin diagnostic device characterized by the above data correction unit being equipped with one of a Kalman filter, an extended Kalman filter, or a neural network.
In paragraph 4, A mobile skin diagnostic device characterized by the above image matching unit using the posture data when generating a density map of the above image.
In paragraph 1, A mobile skin diagnostic device characterized in that the above-mentioned inertial sensor is equipped with a gyroscope sensor or is equipped with both a gyroscope sensor and an accelerometer.
In paragraph 1, The above-mentioned skin diagnostic unit is, A diagnostic unit that receives image data of the entire face aligned from the processing unit above; A host device that receives image data of the entire face aligned from the diagnostic unit; and An artificial intelligence server that receives aligned image data from the host device via the Internet, and transmits diagnostic data suitable for the user to the host device through the user's skin diagnostic image for display. A mobile skin diagnostic device characterized by including

Description

Mobile Skin Diagnostic Device The present invention relates to a mobile skin diagnostic device, and more particularly to a mobile skin diagnostic device capable of three-dimensional precise measurement down to the dermis and subcutaneous tissue using a camera. The matters described in this background technology section are written to enhance understanding of the background of the invention and may include matters that are not prior art already known to those skilled in the art to which this technology belongs. Experience is crucial for dermatologists in treating skin conditions and performing cosmetic procedures. When a patient has previously received treatment with Botox or fillers administered beneath the epidermis, doctors often find it difficult to visually identify this. This is because experienced doctors can accurately assess a patient's skin condition based on their intuitive experience, whereas doctors who have just completed their residency find it difficult to rely on their intuition due to their limited experience with existing patients. Therefore, there is a need for a method that enables real-time observation of not only the epidermis but also the dermis layer without difficulty in dermatology or aesthetics, thereby reducing the variation in treatment results caused by different levels of experience. Meanwhile, existing skin diagnostic devices have the following problems. In the case of devices that photograph the entire face, while it is possible to observe the condition of the epidermis and the area immediately below the epidermis within 1 mm using UV light sources and white LEDs, it is impossible to measure the dermis layer, which is the reference point for procedures such as Botox or fillers. Additionally, existing devices capable of performing precise skin diagnosis on the entire face are very large, which may be problematic for general users, and the price is also too high for users to bear. In the case of localized imaging devices, handheld models exist for imaging specific areas, but these are limited to that area, making precise skin diagnosis of the user impossible with such restricted imaging. Furthermore, similar to devices that image the entire face, penetration into the dermis layer is impossible. FIG. 1 is a schematic diagram of a mobile skin diagnostic device according to one embodiment of the present invention. FIG. 2 is a schematic diagram of an image acquisition device according to one embodiment of the present invention. FIG. 3 is a block diagram of a processing unit according to one embodiment of the present invention. FIG. 4 is a schematic diagram of a skin diagnostic unit according to one embodiment of the present invention. Figure 5 is a schematic diagram of the light source device of Figure 1. Figure 6 is a graph showing the wavelength of a light source versus the penetration depth of a light source according to one embodiment of the present invention. FIG. 7 is a diagram showing the state of irradiating a light source onto skin and capturing an image with a camera according to one embodiment of the present invention. FIG. 8 is a diagram illustrating the process for using each light source and acquiring a final image when photographing a local area according to an embodiment of the present invention. FIG. 9 is a photograph showing a final image produced by a near-infrared light source according to one embodiment of the present invention. FIG. 10 is a photograph showing a final image produced by a white LED light source according to one embodiment of the present invention. FIG. 11 is a photograph showing a final image produced by a polarizing source according to one embodiment of the present invention. FIG. 12 is a photograph showing a final image produced by a UV light source according to one embodiment of the present invention. FIG. 13 is a diagram showing image matching in image matching according to an embodiment of the present invention. FIG. 14 is a diagram illustrating the process of determining an ROI area required for image matching from inertial sensor data according to an embodiment of the present invention and performing matching using it. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. The embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. FIG. 1 is a schematic diagram of a mobile skin diagnostic device according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of an image acquisition device according to an embodiment of the present invention. FIG. 3 is a bloc