WO2024235151A1 - 一种皮肤检测方法及皮肤检测仪 - Google Patents

一种皮肤检测方法及皮肤检测仪 Download PDF

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Publication number
WO2024235151A1
WO2024235151A1 PCT/CN2024/092584 CN2024092584W WO2024235151A1 WO 2024235151 A1 WO2024235151 A1 WO 2024235151A1 CN 2024092584 W CN2024092584 W CN 2024092584W WO 2024235151 A1 WO2024235151 A1 WO 2024235151A1
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WIPO (PCT)
Prior art keywords
forehead
skin
gear
user
circuit board
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Ceased
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PCT/CN2024/092584
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English (en)
French (fr)
Inventor
霍志行
刘汀科
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Xiamen Solex High Tech Industries Co Ltd
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Xiamen Solex High Tech Industries Co Ltd
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Publication of WO2024235151A1 publication Critical patent/WO2024235151A1/zh
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0062—Arrangements for scanning
    • A61B5/0064—Body surface scanning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens

Definitions

  • the invention relates to the technical field of skin care, in particular to a skin detection method and a skin detection instrument.
  • Skin detector is an instrument used to detect skin. When used with detection software, it can help users quickly understand the health status of their skin and can quantitatively analyze the pathological characteristics of the skin, such as quantitative evaluation of skin spots, pores, wrinkles, flatness, porphyrin, UV spots and sunlight damage.
  • the first condition is to ensure the effect of image acquisition. The effect of image acquisition depends on the distance and position between the user and the image acquisition device, and whether the darkroom environment is met for shooting.
  • Existing skin detectors are only provided with a support portion for fixing the face.
  • Chinese patent “201921948569.5" discloses "a skin detector for fixing the face, comprising a detector body (1), a collection port (11) is provided on one side of the detector body (1), the collection port (11) extends into the interior of the detector, a forehead fixing frame (2) is provided on the upper wall of the collection port (11), a chin rest (3) is provided below the collection port (11), and a lifting device is connected between the chin rest (3) and the collection port (11)".
  • the patent does not disclose whether the placement position of the face meets the shooting conditions and how to form a darkroom environment to ensure the shooting quality.
  • the main purpose of the present invention is to propose a skin detection method and a skin detector, which overcome the shortcomings of the prior art, perform positioning detection based on the face position to achieve control of the shading device, and then realize image acquisition and detection in a dark room environment formed by shading, thereby ensuring the detection effect and improving the detection efficiency.
  • a skin detection method comprises:
  • control the shading device to unfold to cover the user's head
  • the placement position of the detected face meets the shooting conditions, specifically including:
  • the acquisition device After capturing the facial image data of the user, the acquisition device measures the distance to the nose tip;
  • the acquisition device or the main control circuit board determines whether the horizontal distance from the nose tip to the acquisition device is less than a first horizontal value according to the measurement data; or the acquisition device or the main control circuit board determines whether the distance from the nose tip to the acquisition device is between a first horizontal value and a second horizontal value according to the measurement data, wherein the first horizontal value is greater than the second horizontal value;
  • the placement position of the detected face meets the shooting conditions, specifically including:
  • the main control circuit board detects whether a sensing signal sent by the chin contact sensor is received, and if so, the shooting condition is met.
  • the placement position of the detected face meets the shooting conditions, specifically including:
  • the main control circuit board detects whether a sensing signal sent by the first forehead contact sensor and/or the second forehead contact sensor is received, and if so, the shooting condition is met.
  • control acquisition device before the control acquisition device acquires the facial image, it also includes:
  • the user's eye-closing state is determined based on the user's facial image data captured by the acquisition device; if the user's eyes are closed, the acquisition device is controlled to acquire the facial image; if the user's eyes are not closed, a prompt is given.
  • the method further comprises:
  • a skin detector includes a shell, and also includes a driving device, a shading device, a collection device and a main control circuit board arranged on the shell;
  • the shell is a hollow structure, which has an open opening surface for a human face to be placed in; after detecting that the face placement position at the opening surface meets the shooting conditions, the main control circuit board controls the driving device to drive the shading device to expand to cover the user's head, and controls the collection device to collect the face image.
  • the shading device comprises a fixed frame, a retractable shading cover and a movable frame; the fixed frame is fixed on the shell; one end of the retractable shading cover is connected to the fixed frame, and the other end is connected to the movable frame.
  • the driving device includes a motor, a rotating shaft, a first gear and a second gear; the first gear is arranged on the motor; the first gear and the second gear constitute a gear transmission mechanism; the second gear and the movable frame are connected in series through the rotating shaft.
  • raised side ribs are evenly arranged on the outer side of the large end surface of the rotating shaft; a positioning block is provided on the side of the cylindrical shaft of the rotating shaft, the mounting hole of the second gear is provided with a first positioning groove corresponding to the positioning block, and the mounting hole of the movable frame is provided with a second positioning groove corresponding to the positioning block.
  • the skin detector further comprises: a chin support provided on the bottom surface of the shell at a position corresponding to the opening surface.
  • a chin contact sensor is provided on the chin support.
  • the skin detector further comprises: a forehead positioning rod arranged on the top of the shell corresponding to the position of the opening surface.
  • the forehead positioning rod is provided with a first contact point and a second contact point in contact with two sides of the forehead; a first forehead contact sensor is provided on the first contact point; and a second forehead contact sensor is provided on the second contact point.
  • the forehead positioning rod is provided with a third contact point for contacting the forehead; and a third forehead contact sensor is provided on the third contact point.
  • the present invention has the following beneficial effects:
  • the skin detection method of the present invention performs positioning detection based on the position of the face to achieve control of the shading device, thereby achieving image acquisition and detection in a dark room environment formed by shading, thereby ensuring the detection effect and improving the detection efficiency;
  • the skin detection method of the present invention After locating the face position, the skin detection method of the present invention also detects the user's eye-closing state. If the eyes are not closed, a voice prompt is given and the shooting is started only after the user closes his eyes, so as to prevent discomfort or damage to the eyes caused by switching between different lights during shooting.
  • the skin detector of the present invention includes a main control circuit board, which can control the flipping device to drive the shading device to automatically flip, specifically, to drive the shading device to automatically flip and unfold when the user takes a photo, and to drive the shading device to automatically flip and fold after the user completes the photo or the test. No other personnel need to participate or the user needs to manually control the flipping, thereby improving the user's satisfaction.
  • the skin detector of the present invention includes a chin support and a chin contact sensor.
  • the chin support can facilitate the user to fix the chin to quickly find the photo position.
  • the chin contact sensor can identify that the chin has contacted the chin support to start taking a photo, thereby ensuring the detection effect and improving the user's satisfaction.
  • the skin detector of the present invention comprises a forehead positioning rod and a forehead contact sensor.
  • the setting can facilitate the user's forehead positioning to quickly find the photo-taking position.
  • the forehead contact sensor can recognize that the forehead has touched the chin support to start taking pictures, thereby ensuring the detection effect and improving user satisfaction.
  • FIG1 is a schematic structural diagram of a skin detector according to a first embodiment of the present invention.
  • FIG2 is a cross-sectional view of a skin detector according to Embodiment 1 of the present invention.
  • FIG3 is a schematic diagram of the structure of the flip device and the shading device according to the first embodiment of the present invention.
  • FIG4 is a cross-sectional view of a flip device and a shading device according to Embodiment 1 of the present invention.
  • FIG5 is an exploded view of the connection between the flip device and the shading device of the first embodiment of the present invention.
  • FIG6 is a flow chart of a skin detection method based on distance detection according to a second embodiment of the present invention.
  • FIG7 is a schematic diagram of the structure of a skin detector corresponding to the skin detection method of the second embodiment of the present invention; wherein (a) is a structural diagram of a shading device that is not deployed; and (b) is a structural diagram of a shading device that is deployed;
  • FIG8 is a flow chart of a skin detection method based on a contact sensor according to a third embodiment of the present invention.
  • FIG9 is a schematic diagram of the structure of a skin detector corresponding to the skin detection method of the third embodiment of the present invention; wherein (a) is a structural diagram of a shading device that is not deployed; and (b) is a structural diagram of a shading device that is deployed;
  • FIG10 is a flow chart of a skin detection method based on distance and sensor according to a fourth embodiment of the present invention.
  • FIG11 is a flow chart of a skin detection method based on closed eyes according to Embodiment 5 of the present invention.
  • FIG12 is a schematic diagram of the eye-closing state corresponding to the skin detection method according to the fifth embodiment of the present invention; wherein (a) is a schematic diagram of eyes being open; and (b) is a schematic diagram of eyes being closed.
  • connection can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • a skin detector includes a shell 10 (including an outer shell 101 and an inner shell 102), and also includes a driving device, a shading device, a collecting device 60 and a main control circuit board 90 arranged on the shell 10;
  • the shell 10 is a hollow structure, which has an open opening surface 103 for a face to be placed in; after detecting that the face placement position at the opening surface 103 meets the shooting conditions, the main control circuit board 90 controls the driving device to drive the shading device to expand to cover the user's head, and controls the collecting device 60 to collect the face image.
  • the driving device may be partially or completely disposed inside the housing 10 , or partially or completely disposed outside the housing 10 .
  • the driving device is disposed inside the housing 10
  • the shading device is disposed outside the housing 10 .
  • the shading device includes a fixed frame 301, a retractable sunshade 302 and a movable frame 303; the fixed frame 301 is fixed on the shell 10; one end of the retractable sunshade 302 is connected to the fixed frame 301, and the other end is connected to the movable frame 303.
  • the driving device includes a motor 201, a rotating shaft 202, a first gear 203 and a second gear 204; the first gear 203 is arranged on the motor 201; the first gear 203 and the second gear 204 constitute a gear transmission mechanism; the second gear 204 and the movable frame 303 are connected in series through the rotating shaft 202.
  • the motor 201, the rotating shaft 202, the first gear 203 and the second gear 204 each include two symmetrical ones.
  • raised side ribs 2022 are evenly arranged on the outer side of the large end surface 2021 of the rotating shaft 202; a positioning block 2024 is provided on the side of the cylindrical shaft 2023 of the rotating shaft 202, the mounting hole of the second gear 204 is provided with a first positioning groove 2041 corresponding to the positioning block 2024, and the mounting hole of the movable frame 303 is provided with a second positioning groove 3031 corresponding to the positioning block 2024.
  • the retractable light shield 302 is fixed to the fixed frame 301, and the other end is fixed to the movable frame 303.
  • the first gear 203 and the second gear 204 are bevel gears.
  • the motor 201 When the motor 201 is running, it drives the second gear 204 to rotate.
  • the second gear 204 and the movable frame 303 are connected together through the rotating shaft 202. Therefore, when the second gear 204 rotates, it drives the movable frame 303 to turn up and down, thereby realizing the telescopic folding of the light shield.
  • the movable frame 303 of the shading device is connected with the second gear 204 in series through the rotating shaft 202 to form a whole.
  • a circle of raised side ribs 2022 are evenly distributed on the outer side of the large end surface 2021 of the rotating shaft 202, which is used to clamp and fix with the assembly surface 3032 of the movable frame 303.
  • a long strip positioning block 2024 is provided on the side of the cylindrical shaft 2023 of the rotating shaft 202 for passing through the second gear 204 and the movable frame 303, and a first positioning groove 2041 and a second positioning groove 3031 of corresponding sizes are provided in the mounting holes of the second gear 204 and the movable frame 303.
  • the main control circuit board 90 is connected to the driving device so that the driving device drives the shading device to automatically unfold or fold.
  • the main control circuit board 90 can control the driving device to drive the shading device to automatically flip.
  • the shading device is automatically flipped and unfolded, and after the user completes the photo shooting or the detection, the shading device is automatically flipped and folded. No other personnel need to be involved or the user needs to manually control the flipping, which improves the user's satisfaction.
  • the driving device can also be manually controlled by a user/staff to drive the shading device to be flipped, unfolded or folded. In this embodiment, it is preferably automatically controlled by the main control circuit board 90.
  • the skin detector with a light shield further comprises: a chin support 40 disposed on the bottom surface of the housing 10 at a position corresponding to the opening surface 103 .
  • the chin support 40 is provided with a chin contact sensor 401 .
  • the setting of the chin support 40 can facilitate the user to fix the chin to quickly find the photo-taking position.
  • the chin contact sensor 401 can recognize that the chin has contacted the chin support 40 to start taking pictures, thereby ensuring the detection effect and improving user satisfaction.
  • the skin detector with a light shield further comprises: a forehead positioning rod 50 arranged at the top of the housing 10 corresponding to the position of the opening surface 103 .
  • the forehead positioning rod 50 is provided with a first contact 501 and a second contact 502 that contact both sides of the forehead; forehead contact sensors 503 are provided on the first contact 501 and the second contact 502; specifically, the first contact 501 is provided with a first forehead contact sensor; the second contact 502 is provided with a second forehead contact sensor.
  • the forehead positioning rod 50 is provided with a third contact point in contact with the center of the forehead; and a third forehead contact sensor is provided on the third contact point.
  • a first contact point 501 and a second contact point 502 are provided, which are in contact with two sides of the forehead respectively.
  • the setting of the forehead positioning rod 50 can facilitate the user to position the forehead to quickly find the photo-taking position.
  • the forehead contact sensor can recognize that the forehead has contacted the chin support 40 to start taking pictures, thereby ensuring the detection effect and improving user satisfaction.
  • the collecting device 60 is arranged directly opposite to the opening surface 103 .
  • the acquisition device 60 includes a camera module and may also include a light switching module for capturing facial images under different light modes.
  • the skin detector further comprises: a start switch 70 disposed on the housing 10. After the switch 70 is activated, the detector is powered on.
  • the skin detector with a light shield further includes: a base 80 disposed at the bottom of the housing 10 for supporting the housing 10 .
  • a skin detection method includes:
  • the acquisition device measures the distance to the nose tip
  • the acquisition device or the main control circuit board determines whether the horizontal distance from the nose tip to the acquisition device is less than a first horizontal value according to the measurement data; or the acquisition device or the main control circuit board determines whether the distance from the nose tip to the acquisition device is between a first horizontal value and a second horizontal value according to the measurement data, wherein the first horizontal value is greater than the second horizontal value;
  • S604 controlling the acquisition device to acquire facial images.
  • the first horizontal value may be equal to the horizontal distance from the chin support to the collection device; the chin support is arranged at a position on the bottom surface of the shell corresponding to the opening surface.
  • the first horizontal value may also be equal to the horizontal distance from the forehead positioning rod to the acquisition device; the forehead positioning rod is arranged at a position corresponding to the opening surface at the top of the shell.
  • first horizontal value may also be other horizontal distances set based on experience; the second horizontal value may be a horizontal distance set based on experience, or may be limited by setting a positioning device, and this embodiment does not impose any specific limitation.
  • the shading device includes a fixed frame 301, a retractable sunshade 302 and a movable frame 303; the fixed frame 301 is fixed on the shell 10; one end of the retractable sunshade 302 is connected to the fixed frame 301, and the other end is connected to the movable frame 303.
  • the shading device is driven by a driving device.
  • the driving device includes a motor 201, a rotating shaft 202, a first gear 203 and a second gear 204; the first gear 203 is arranged on the motor 201; the first gear 203 and the second gear 204 form a gear transmission mechanism; the second gear 204 and the movable frame 303 are connected in series through the rotating shaft 202.
  • the specific detection principle includes: after the skin detector is powered on, the external terminal device uses the APP After the skin detector (such as a tablet APP or a mobile phone terminal APP) is connected and paired, enter the photo detection page.
  • the acquisition device such as a depth camera captures the user's facial image data and measures the distance of each part of the face. According to the distribution of facial features and morphological characteristics of a normal human face, it is easy to find that the nose tip (nose tip) position of the face is generally the most protruding part of the entire face, and the distance from the skin of each area of the face to the camera is also different.
  • the distance from the skin at the nose tip or nose tip position to the camera is the smallest.
  • the horizontal distance from the skin at the nose tip (nose tip) position to the camera is taken as S1
  • the horizontal distance from the inner side of the forehead positioning rod or the chin support to the camera facing the camera is taken as S2 (the first horizontal value).
  • S1 the horizontal distance from the inner side of the forehead positioning rod or the chin support to the camera facing the camera.
  • the main control circuit board issues a command to control the motor of the drive device to run in a clockwise direction.
  • the first gear on the motor drives the second gear to rotate, and the second gear drives the movable frame of the light shield to flip downward, thereby lowering the light shielding device to cover the person's head in the skin detector.
  • the voice prompt in the skin detector is completed, and the main control circuit board triggers the motor to run in the counterclockwise direction again, thereby driving the movable frame of the light shielding device to flip upward and automatically retract the retractable light shield.
  • the facial position for distance detection may be other positions besides the nose, and may be set according to specific needs, and this embodiment does not impose any limitation.
  • the above is an implementation plan for determining the position of a human face by comparing the size of a protruding part of the human face relative to the distance from a fixed structure on the skin detector to the camera through depth camera detection.
  • a skin detection method includes:
  • the main control circuit board detects whether a sensing signal sent by the contact sensor is received
  • the main control circuit board after the acquisition device captures the facial image data of the user, the main control circuit board performs sensor signal detection to prevent other parts of the human body from triggering the sensor signal and causing inaccurate detection.
  • the contact sensor comprises a chin contact sensor.
  • the chin contact sensor is arranged on a chin support; and the chin support is arranged at a position on the bottom surface of the housing corresponding to the opening surface.
  • the contact sensor may also include a first forehead contact sensor and/or a second forehead contact sensor.
  • the first forehead contact sensor and the second forehead contact sensor are arranged on a forehead positioning rod; the forehead positioning rod is arranged at a position corresponding to the opening surface at the top of the housing.
  • the first horizontal value may be equal to the horizontal distance from the chin support to the collection device; the chin support is arranged at a position on the bottom surface of the shell corresponding to the opening surface.
  • the shading device includes a fixed frame 301, a retractable sunshade 302 and a movable frame 303; the fixed frame 301 is fixed on the shell 10; one end of the retractable sunshade 302 is connected to the fixed frame 301, and the other end is connected to the movable frame 303.
  • the shading device is driven by a driving device.
  • the driving device includes a motor 201, a rotating shaft 202, a first gear 203 and a second gear 204; the first gear 203 is arranged on the motor 201; the first gear 203 and the second gear 204 form a gear transmission mechanism; the second gear 204 and the movable frame 303 are connected in series through the rotating shaft 202.
  • the specific detection principle includes determining the position of the face by contact detection between the face and the positioning structure of the skin detector, thereby realizing the automatic flipping of the shading device.
  • a contact sensor is added to each of the two contact points where the forehead positioning rod contacts the forehead, and/or a contact sensor is added to the position where the chin support is in contact with the chin, and the sensors at each position are electrically connected to the main control circuit board.
  • the contact sensors at these two positions facilitate contact with the facial skin.
  • the capacitance value, resistance value, pressure value or temperature value in the sensor changes, and then a signal is sent to the main control circuit board, and the motor of the main control circuit board runs to realize the automatic flipping and retraction of the shading device.
  • the contact sensor used in this embodiment may be a touch or contact sensor, a pressure sensor or a temperature sensor, which performs a contact detection based on the electrical conductivity or thermal conductivity of human skin to determine the position of the face.
  • a skin detection method includes:
  • the acquisition device after capturing the facial image data of the user, the acquisition device sends the information to the main control circuit board;
  • the acquisition device or the main control circuit board determines whether the horizontal distance from the nose tip to the acquisition device meets the specified distance, and detects whether a sensor signal sent by the contact sensor is received;
  • This embodiment is a combination of the second embodiment and the third embodiment, and includes both the detection of distance and the detection of sensor signals.
  • the depth camera and the contact sensor are combined to perform dual positioning through distance testing and contact sensing, which is more accurate.
  • Distance positioning detection can avoid the disadvantage of contact sensing detection where the face is tilted and not placed in place.
  • Contact sensing positioning detection also avoids the situation where the face reaches S1 ⁇ S2 before it touches the forehead positioning rod and the chin support. The two methods are used together for face positioning detection to complement each other.
  • a skin detection method includes:
  • eye-closing recognition technology is added to the photo control, and the user's eye-opening state 1001 or eye-closing state 1002 is determined by the facial image captured by the camera.
  • the voice prompt broadcast in the skin detector is completed and the camera captures the user's eyes in a closed state
  • the photo command will be triggered to switch the lights in the skin detector and automatically take pictures. If the captured image shows that the user is still in the eye-open state 1001, the photo cannot be taken and the signal is fed back to the main control circuit board.
  • the voice broadcast continues in the skin detector to prompt the user to close his eyes.
  • the application of this technology can not only avoid the discomfort caused to the user's eyes by the switching of different lights in the skin detector, but also better protect the eyes from being damaged by the light.
  • Eye closure detection and recognition One is image classification detection, which determines whether the face image captured by the camera is in an open or closed state by training and learning two categories of images: open eyes and closed eyes.
  • image classification detection which determines whether the face image captured by the camera is in an open or closed state by training and learning two categories of images: open eyes and closed eyes.
  • facial key point detection technology which detects whether the key points corresponding to the upper and lower eyelids of the two eyes are in an overlapping state through the face image captured by the camera. If they are in an overlapping state, it proves that the eyes are closed.
  • the present invention provides a skin detection method and a skin detector, which detects whether the placement position of a face meets the shooting conditions, controls a shading device to expand to cover the user's head, and controls a collection device to collect a face image.
  • the present invention performs positioning detection based on the face position to control the shading device, and then realizes image collection and detection in a dark room environment formed by shading, thereby ensuring the detection effect and improving the detection efficiency.

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Abstract

本发明公开了一种皮肤检测方法及皮肤检测仪，检测方法包括：检测人脸的放置位置是否满足拍摄条件；如果满足，控制遮光装置展开以遮挡使用者的头部；控制采集装置采集人脸图像。本发明基于人脸位置进行定位检测，来实现对遮光装置的控制，进而实现在遮光形成的暗室环境下进行图像采集及检测，保证了检测的效果，并提升了检测效率。

Description

一种皮肤检测方法及皮肤检测仪 技术领域
本发明涉及皮肤护理技术领域，特别是一种皮肤检测方法及皮肤检测仪。
背景技术
皮肤检测仪是用来检测皮肤的仪器，与检测软件相配合可以帮助使用者快速了解自己皮肤的健康状态，能够对皮肤的病理学特征进行定量分析，如对皮肤色斑、毛孔、皱纹、平整度、卟啉、紫外线斑和日光损伤定量评估。在皮肤检测的过程中，需要采集使用者的脸部图像或其他部位的图像，因此，要想保证检测的准确性，其首要条件是要保证图像采集的效果。图像采集的效果取决于使用者与图像采集装置的距离及位置，还取决与是否，满足拍摄的暗室环境等。现有的皮肤检测仪仅设置有固定脸部的支撑部，如中国专利“201921948569.5”，公开了“一种便于固定脸部的皮肤检测仪，包括检测仪本体(1)，所述检测仪本体(1)一侧开设有采集口(11)，采集口(11)延伸至检测仪内部，所述采集口(11)的上壁设置有额头固定架(2)，所述采集口(11)的下方设置有下巴托(3)，所述下巴托(3)与采集口(11)之间连接有升降装”，但该专利并没有公开人脸的放置位置是否满足拍摄条件以及如何形成保证拍摄质量的暗室环境。
发明内容
本发明的主要目的在于提出一种皮肤检测方法及皮肤检测仪，其克服了现有技术的所存在的不足之处，基于人脸位置进行定位检测，来实现对遮光装置的控制，进而实现在遮光形成的暗室环境下进行图像采集及检测，保证了检测的效果，并提升了检测效率。
本发明采用如下技术方案：
一方面，一种皮肤检测方法，包括：
检测人脸的放置位置满足拍摄条件；
如果满足，控制遮光装置展开以遮挡使用者的头部；
控制采集装置采集人脸图像。
优选的，所述检测人脸的放置位置满足拍摄条件，具体包括：
采集装置在捕捉到使用者的面部图像数据后，对鼻头进行距离测量；
采集装置或主控电路板根据测量数据判断鼻头到采集装置的水平距离是否小于第一水平值；或者，采集装置或主控电路板根据测量数据判断鼻头到采集装置的距离是否在第一水平值与第二水平值之间，其中，所述第一水平值大于第二水平值；
如果是，满足拍摄条件。
优选的，所述检测人脸的放置位置满足拍摄条件，具体包括：
主控电路板检测是否接有收到下巴接触传感器发送的传感信号，如果有，满足拍摄条件。
优选的，所述检测人脸的放置位置满足拍摄条件，具体包括：
主控电路板检测是否接有收到第一额头接触传感器和/或第二额头接触传感器发送的传感信号，如果有，满足拍摄条件。
优选的，所述控制采集装置采集人脸图像之前，还包括：
根据所述采集装置捉到的使用者的面部图像数据，判断使用者的闭眼状态；如果已闭眼，控制所述采集装置采集人脸图像；如果没有闭眼，进行提示。
优选的，所述控制采集装置采集人脸图像之后，还包括：
判断是否检测完成，如果完成，控制遮光装置收拢。
另一方面，一种皮肤检测仪，包括壳体，还包括设置在所述壳体上的驱动装置、遮光装置、采集装置和主控电路板；所述壳体为中空结构，其具有一开放的供人脸放入的开口面；在检测到所述开口面处的人脸放置位置满足拍摄条件后，所述主控电路板控制驱动装置驱动遮光装置展开以遮挡使用者的头部，并控制采集装置采集人脸图像。
优选的，所述遮光装置包括固定框架、可伸缩遮光罩和活动框架；所述固定框架固定在所述壳体上；所述可伸缩遮光罩一端与所述固定框架相连接，另一端与所述活动框架相连接。
优选的，所述驱动装置包括电机、转轴、第一齿轮和第二齿轮；所述第一齿轮设置在电机上；所述第一齿轮和第二齿轮组成齿轮传动机构；所述第二齿轮和所述活动框架通过所述转轴串接。
优选的，所述转轴的大端面外侧均匀设置有凸起侧筋；所述转轴的圆柱轴侧面设有一定位块，所述第二齿轮的安装孔设置有与所述定位块对应的第一定位槽，所述活动框架的安装孔设置有与所述定位块对应的第二定位槽。
优选的，所述的皮肤检测仪，还包括：设置在所述壳体底面对应所述开口面位置的下巴支撑托。
优选的，所述下巴支撑托上设置有下巴接触传感器。
优选的，所述的皮肤检测仪，还包括：设置在所述壳体顶部对应所述开口面位置的额头定位杆。
优选的，所述额头定位杆设置有与额头两侧接触的第一触点和第二触点；所述第一触点上设置有第一额头接触传感器；所述第二触点上设置有第二额头接触传感器。
优选的，所述额头定位杆设置有与额头接触的第三触点；所述第三触点上设置有第三额头接触传感器。
与现有技术相比，本发明的有益效果如下：
(1)本发明的皮肤检测方法基于人脸位置进行定位检测，来实现对遮光装置的控制，进而实现在遮光形成的暗室环境下进行图像采集及检测，保证了检测的效果，并提升了检测效率；
(2)本发明的皮肤检测方法在对人脸位置进行定位后，还对使用者的闭眼状态进行检测，如果未闭眼，进行语音提示，待使用者闭眼后才启动拍摄，防止拍摄时不同灯光切换给眼睛带来不适或伤害；
(3)本发明的皮肤检测仪包括主控电路板，能够控制翻转装置带动遮光装置自动翻转，具体为在使用者拍摄时带动遮光装置自动翻转展开，以及在使用者拍摄完成或检测完成后带动遮光装置自动翻转收拢，无需其他人员参与或使用者手动控制翻转，提升了使用者的满意度；
(4)本发明的皮肤检测仪包括下巴支撑托和下巴接触传感器，下巴支撑托的设置能够便于使用者下巴固定以快速找到拍照位置，所述下巴接触传感器能够识别出下巴已经接触到下巴支撑托以启动拍照，保证了检测效果及提升可使用者满意度；
(5)本发明的皮肤检测仪包括额头定位杆和额头接触传感器，额头定位杆 的设置能够便于使用者额头定位以快速找到拍照位置，所述额头接触传感器能够识别出额头已经接触到下巴支撑托以启动拍照，保证了检测效果及提升可使用者满意度。
上述说明仅是本发明技术方案的概述，为了能够更清楚地了解本发明的技术手段，从而可依照说明书的内容予以实施，并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂，以下列举本发明的具体实施方式。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述及其他目的、优点和特征。
附图说明
图1为本发明实施例一的皮肤检测仪的结构示意图；
图2为本发明实施例一的皮肤检测仪的剖视图；
图3为本发明实施例一的翻转装置与遮光装置的结构示意图；
图4为本发明实施例一的翻转装置与遮光装置的剖视图；
图5为本发明实施例一的翻转装置与遮光装置连接分解图；
图6为本发明实施例二的基于距离检测的皮肤检测方法的流程图；
图7为本发明实施例二的皮肤检测方法所对应的皮肤检测仪的结构示意图；其中(a)表示遮光装置未展开的结构图；(b)表示遮光装置展开的结构图；
图8为本发明实施例三的基于接触传感器的皮肤检测方法的流程图；
图9为本发明实施例三的皮肤检测方法所对应的皮肤检测仪的结构示意图；其中(a)表示遮光装置未展开的结构图；(b)表示遮光装置展开的结构图；
图10为本发明实施例四的基于距离和传感器的皮肤检测方法的流程图；
图11为本发明实施例五的基于闭眼状态的皮肤检测方法的流程图；
图12为本发明实施例五的皮肤检测方法所对应的闭眼状态的示意图；其中(a)表示睁眼示意图；(b)表示闭眼示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述；显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的 实施例，基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
在本发明的描述中，需要说明的是，术语“上”、“下”、“内”、“外”、“顶/底端”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置有”、“套设/接”、“连接”等，应做广义理解，例如“连接”，可以是固定连接，也可以是可拆卸连接，或一体地连接，可以是机械连接，也可以是电连接，可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通，对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例一
参见图1至2所示，本实施例一种皮肤检测仪，包括壳体10(包括外壳101和内壳102)，还包括设置在所述壳体10上的驱动装置、遮光装置、采集装置60和主控电路板90；所述壳体10为中空结构，其具有一开放的供人脸放入的开口面103；在检测到所述开口面103处有的人脸放置位置满足拍摄条件后，所述主控电路板90控制驱动装置驱动遮光装置展开以遮挡使用者的头部，并控制采集装置60采集人脸图像。
具体的，所述驱动装置可以部分或全部设置在所述壳体10内部，也可以部分或全部设置在所述壳体10外部。本实施例中，所述驱动装置设置在所述壳体10内部，所述遮光装置设置在所述壳体10外部。
参见图2至4所示，所述遮光装置包括固定框架301、可伸缩遮光罩302和活动框架303；所述固定框架301固定在所述壳体10上；所述可伸缩遮光罩302一端与所述固定框架301相连接，另一端与所述活动框架303相连接。
所述驱动装置包括电机201、转轴202、第一齿轮203和第二齿轮204；所述第一齿轮203设置在电机201上；所述第一齿轮203和第二齿轮204组成齿轮传动机构；所述第二齿轮204和所述活动框架303通过所述转轴202串接。
本实施例中，所述电机201、转轴202、第一齿轮203和第二齿轮204分别包括对称的两个。
参见图5所示，所述转轴202的大端面2021外侧均匀设置有凸起侧筋2022；所述转轴202的圆柱轴2023侧面设有一定位块2024，所述第二齿轮204的安装孔设置有与所述定位块2024对应的第一定位槽2041，所述活动框架303的安装孔设置有与所述定位块2024对应的第二定位槽3031。
具体的，所述可伸缩遮光罩302一端固定在所述固定框架301上，另外一端固定在所述活动框架303上。本实施例第一齿轮203与第二齿轮204为锥形齿轮。当所述电机201运转工作时带动第二齿轮204转动，第二齿轮204和所述活动框架303通过所述转轴202贯穿连接在一起，所以第二齿轮204转动时便会带动所述活动框架303进行上下翻转，从而实现遮光罩伸缩折叠。
进一步的，所述遮光装置的活动框架303跟所述第二齿轮204通过转轴202串接在一起形成一个整体。所述转轴202的大端面2021外侧均匀分布有一圈凸起侧筋2022，用于跟所述活动框架303的装配面3032卡紧固定。在所述转轴202用于贯穿所述第二齿轮204和活动框架303的圆柱轴2023侧面设有一长条形定位块2024，在所述第二齿轮204和活动框架303的安装孔设有对应大小的第一定位槽2041和第二定位槽3031。当把所述转轴202、第二齿轮204和活动框架303装配在一起后，便形成一个可以同时转动的整体。当所述电机201上的第一齿轮203带动第二齿轮204转动时，所述活动框架303便可跟随一起转动，从而实现遮光装置的展开或折叠。
本实施例中，所述主控电路板90与所述驱动装置相连接以实现所述驱动装置驱动所述遮光装置进行自动展开或折叠。
所述主控电路板90能够控制驱动装置带动遮光装置自动翻转，具体为在使 用者拍摄时带动遮光装置自动翻转展开，以及在使用者拍摄完成或检测完成后带动遮光装置自动翻转收拢，无需其他人员参与或使用者手动控制翻转，提升了使用者的满意度。
需要说明的是，所述驱动装置也可以通过使用者/工作人员手动控制，以驱动所述遮光装置通过翻转展开或折叠，本实施例优选为通过主控电路板90自动控制。
参见图1和图2所示，所述的带遮光罩的皮肤检测仪，还包括：设置在所述壳体10底面对应所述开口面103位置的下巴支撑托40。
所述下巴支撑托40上设置有下巴接触传感器401。
下巴支撑托40的设置能够便于使用者下巴固定以快速找到拍照位置，所述下巴接触传感器401能够识别出下巴已经接触到下巴支撑托40以启动拍照，保证了检测效果及提升可用户满意度。
所述的带遮光罩的皮肤检测仪，还包括：设置在所述壳体10顶部对应所述开口面103位置的额头定位杆50。
所述额头定位杆50设置有与额头两侧接触的第一触点501和第二触点502；所述第一触点501和所述第二触点502上设置有额头接触传感器503；具体的，所述第一触点501上设置有第一额头接触传感器；所述第二触点502上设置有第二额头接触传感器。
或者，所述额头定位杆50设置有与额头中心接触的第三触点；所述第三触点上设置有第三额头接触传感器。
本实施例中，设置有第一触点501和第二触点502，分别与额头的两侧相接触。
额头定位杆50的设置能够便于使用者额头定位以快速找到拍照位置，所述额头接触传感器能够识别出额头已经接触到下巴支撑托40以启动拍照，保证了检测效果及提升可用户满意度。
本实施例中，所述采集装置60设置在所述开口面103正对处。
具体的，所述采集装置60包括摄像头模组，还可以包括灯光切换模组，用于在不同的灯光模式下拍摄人脸图像。
所述皮肤检测仪还包括：设置在所述壳体10上的启动开关70。所述启动开 关70启动后，所述检测仪即启动上电开机。
本实施例中，所述的带遮光罩的皮肤检测仪，还包括：设置在所述壳体10底部的底座80，用于对所述壳体10进行支撑。
实施例二
参见图6所述，本实施例一种皮肤检测方法，包括：
S601，采集装置在捕捉到使用者的面部图像数据后，对鼻头进行距离测量；
S602，采集装置或主控电路板根据测量数据判断鼻头到采集装置的水平距离是否小于第一水平值；或者，采集装置或主控电路板根据测量数据判断鼻头到采集装置的距离是否在第一水平值与第二水平值之间，其中，所述第一水平值大于第二水平值；
S603，如果是，控制遮光装置展开以遮挡使用者的头部；
S604，控制采集装置采集人脸图像。
本实施例中，所述第一水平值可以等于下巴支撑托到所述采集装置的水平距离；所述下巴支撑托设置在所述壳体底面对应所述开口面位置。
此外，所述第一水平值还可以等于额头定位杆到所述采集装置的水平距离；所述额头定位杆设置在所述壳体顶部对应所述开口面位置。
需要说明的是，所述第一水平值还可以是其他根据经验设定的水平距离；所述第二水平值可以是根据经验设定的水平距离，也可以通过设置一个定位装置进行限定，本实施例不做具体限制。
参见图1～5及图7所示，本实施例中，所述遮光装置包括固定框架301、可伸缩遮光罩302和活动框架303；所述固定框架301固定在所述壳体10上；所述可伸缩遮光罩302一端与所述固定框架301相连接，另一端与所述活动框架303相连接。
所述遮光装置通过驱动装置驱动。具体的，所述驱动装置包括电机201、转轴202、第一齿轮203和第二齿轮204；所述第一齿轮203设置在电机201上；所述第一齿轮203和第二齿轮204组成齿轮传动机构；所述第二齿轮204和所述活动框架303通过所述转轴202串接。
具体的检测原理包括，皮肤检测仪开机上电之后，外部终端设备应用APP (如平板APP或手机终端APP)与皮肤检测仪连接配对后，进入到拍照检测页面。当使用者(检测用户)把头部放入皮肤检测仪时，采集装置如深度摄像头便捕捉到了使用者的面部图像数据，对面部各部位进行距离测量。根据正常人脸的五官分布以及形态特征，容易发现面部的鼻头(鼻尖)位置一般都是整个面部的最凸出部位，而且面部各区域的皮肤到摄像头的距离也是不同的。参见图2所示，就整个面部而言，其中鼻尖或鼻头位置的皮肤到摄像头的距离是最小的。本实施例将鼻头(鼻尖)位置的皮肤到摄像头水平方向的距离取值为S1，将额头定位杆或下巴支撑托朝向摄像头的内侧面到摄像头的水平距离取值为S2(第一水平值)。由图2可知，当人脸的下巴跟额头接触到对应位置时，距离S1明显会小于S2。由此可以在皮肤检测仪预设程序，当深度摄像头或主控电路板检测到距离S1＜S2时，判定人脸位置基本已满足检测条件，便发送电信号到主控电路板，主控电路板发出指令控制驱动装置的电机沿顺时针方向运转。电机上的第一齿轮带动第二齿轮旋转，第二齿轮带动遮光罩活动框架向下翻转，从而放下遮光装置把人的头部罩在皮肤检测仪内。当皮肤检测仪完成对用户的拍照，皮肤检测仪内语音提示检测完毕，主控电路板再次触发电机沿逆时针方反向运转，从而带动遮光装置的活动框架向上翻转自动收起可伸缩遮光罩。
需要说明的是，进行距离检测的脸部位置除鼻头外，还可以是其他位置，具体根据需要进行设定，本实施例不做限制。
以上便是通过深度摄像头检测比较人脸某一凸出部位相对于皮肤检测仪上某一固定结构件到摄像头距离的大小来确定人脸位置的实施方案。
实施例三
参见图8所述，本实施例一种皮肤检测方法，包括：
S801，主控电路板检测是否接有收到接触传感器发送的传感信号；
S802，如果有，控制遮光装置展开以遮挡使用者的头部；
S803，控制采集装置采集人脸图像。
需要说明的是，本实施例可以在采集装置在捕捉到使用者的面部图像数据后，主控电路板材进行传感信号检测，防止人体其他部位触发了传感信号导致检测不准。
本实施例中，所述接触传感器包括下巴接触传感器。所述下巴接触传感器设置在下巴支撑托上；所述下巴支撑托设置在所述壳体底面对应所述开口面位置。
所述接触传感器还可以包括第一额头接触传感器和/或第二额头接触传感器。所述第一额头接触传感器和第二额头接触传感器设置在额头定位杆上；所述额头定位杆设置在所述壳体顶部对应所述开口面位置。
本实施例中，所述第一水平值可以等于下巴支撑托到所述采集装置的水平距离；所述下巴支撑托设置在所述壳体底面对应所述开口面位置。
参见图1～5及图9所示，本实施例中，所述遮光装置包括固定框架301、可伸缩遮光罩302和活动框架303；所述固定框架301固定在所述壳体10上；所述可伸缩遮光罩302一端与所述固定框架301相连接，另一端与所述活动框架303相连接。
所述遮光装置通过驱动装置驱动。具体的，所述驱动装置包括电机201、转轴202、第一齿轮203和第二齿轮204；所述第一齿轮203设置在电机201上；所述第一齿轮203和第二齿轮204组成齿轮传动机构；所述第二齿轮204和所述活动框架303通过所述转轴202串接。
具体的检测原理包括，通过人脸与皮肤检测仪定位结构接触检测来判定人脸的位置，从而实现遮光装置的自动翻转。本实施例在额头定位杆与额头接触的两个触点上各增加一个接触式传感器，和/或，在下巴支撑托与下巴接触的位置增加一个接触式传感器，各位置的传感器与主控电路板电连接在一起。这样当使用者的头部伸到皮肤检测仪内，下巴放在下巴支撑托上，和/或，额头与额头定位杆的两个触点相触碰时，这两个位置的接触式传感器便于脸部皮肤相接触。传感器内的电容值或电阻值或压力值或温度值发生变化，然后将信号发送到主控电路板，主控电路板的电机运转实现遮光装置的自动翻转伸缩。
进一步的，本实施例使用的接触式传感器可以是触摸或触碰传感器、压力传感器或者温度传感器，根据人体皮肤的导电性或者导热性，进行一个接触检测，判定人脸位置。
实施例四
参见图10所述，本实施例一种皮肤检测方法，包括：
S1001，采集装置在捕捉到使用者的面部图像数据后，发送信息到主控电路板；
S1002，采集装置或主控电路板判断鼻头到采集装置的水平距离是否满足指定距离，以及，检测是否接有收到接触传感器发送的传感信号；
S1003，如果有，控制遮光装置展开以遮挡使用者的头部；
S1004，控制采集装置采集人脸图像。
本实施例为实施例二和实施例三的结合，既包括对距离的检测，也包括对传感信号的检测。具体的，利用深度摄像头和接触式传感器相互结合，通过距离测试跟接触感应双重定位，更加精确。距离定位检测可以避免接触感应检测会出现人脸倾斜没有摆放到位的弊端，接触感应定位检测同样又避免了距离定位检测会出现人脸还未接触到额头定位杆跟下巴支撑托就达到S1＜S2的情况。两种方式共同使用做人脸定位检测，相互弥补，相辅相成。
实施例五
参见图11所述，本实施例一种皮肤检测方法，包括：
S1101，检测人脸的放置位置满足拍摄条件；
S1102，如果满足，控制遮光装置展开以遮挡使用者的头部；
S1103，根据采集装置捉到的使用者的面部图像数据，判断使用者的闭眼状态；如果为闭眼状态，控制所述采集装置采集人脸图像；如果为睁眼状态，进行提示。
参见图12所示，本实施例中，在拍照控制上增加了闭眼识别技术，通过摄像头捕捉到的人脸图像判定用户的睁眼状态1001或闭眼状态1002。当皮肤检测仪内的语音提示播报完成，摄像头捕捉到用户的眼睛处于闭合状态时，便会触发拍照指令实现皮肤检测仪内的灯光切换并自动拍照。若捕捉到的图像显示用户仍处于睁眼状态1001，则不可拍照同时反馈信号给主控电路板，皮肤检测仪内继续进行语音播报，提示用户闭上眼睛。该技术的应用不仅可以避免皮肤检测仪内不同灯光切换对用户眼睛带来的不适感，也更好的保护眼睛不会受到灯光的伤害。
需要说明的是，睁闭眼状态的检测主要是依靠于AI算法的图像识别技术，具体可以通过现有技术实现。本实施例通过深度学习算法可以有两种方式来实现 闭眼检测识别。一种是图像的分类检测，通过训练学习睁眼和闭眼两种类别的图像，判定当前摄像头捕捉的人脸图像是处于睁眼还是闭眼的状态。另外一种便是人脸关键点检测技术，通过摄像头捕捉的人脸图像检测两只眼睛的上眼皮跟下眼皮上下相互对应的关键点是否处于重合状态，如果是处于重合状态则证明是闭眼状态。
以上所述，仅为本发明较佳的具体实施方式；但本发明的保护范围并不局限于此。任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其改进构思加以等同替换或改变，都应涵盖在本发明的保护范围内。
工业实用性
本发明一种皮肤检测方法及皮肤检测仪，通过检测人脸的放置位置是否满足拍摄条件，控制遮光装置展开以遮挡使用者的头部，控制采集装置采集人脸图像。本发明基于人脸位置进行定位检测，来实现对遮光装置的控制，进而实现在遮光形成的暗室环境下进行图像采集及检测，保证了检测的效果，并提升了检测效率。

Claims (14)

  1. 一种皮肤检测方法，其特征在于，包括：
    检测人脸的放置位置是否满足拍摄条件；
    如果满足，控制遮光装置展开以遮挡使用者的头部；
    控制采集装置采集人脸图像。
  2. 根据权利要求1所述的皮肤检测方法，其特征在于，所述检测人脸的放置位置满足拍摄条件，具体包括：
    采集装置在捕捉到使用者的面部图像数据后，对鼻头进行距离测量；
    采集装置或主控电路板根据测量数据判断鼻头到采集装置的水平距离是否小于第一水平值；或者，采集装置或主控电路板根据测量数据判断鼻头到采集装置的距离是否在第一水平值与第二水平值之间，其中，所述第一水平值大于第二水平值；
    如果是，满足拍摄条件。
  3. 根据权利要求1所述的皮肤检测方法，其特征在于，所述检测人脸的放置位置满足拍摄条件，具体包括：
    主控电路板检测是否有接收到下巴接触传感器发送的传感信号，如果有，满足拍摄条件。
  4. 根据权利要求1所述的皮肤检测方法，其特征在于，所述检测人脸的放置位置满足拍摄条件，具体包括：
    主控电路板检测是否有接收到第一额头接触传感器和/或第二额头接触传感器发送的传感信号，如果有，满足拍摄条件。
  5. 根据权利要求1所述的皮肤检测方法，其特征在于，所述控制采集装置采集人脸图像之前，还包括：
    根据所述采集装置捕捉到的使用者的面部图像数据，判断使用者的闭眼状态；如果已闭眼，控制所述采集装置采集人脸图像；如果没有闭眼，进行提示。
  6. 根据权利要求1所述的皮肤检测方法，其特征在于，所述控制采集装置采集人脸图像之后，还包括：
    判断是否检测完成，如果完成，控制遮光装置收拢。
  7. 一种皮肤检测仪，包括壳体，其特征在于，还包括设置在所述壳体上的 驱动装置、遮光装置、采集装置和主控电路板；所述壳体为中空结构，其具有一开放的供人脸放入的开口面；在检测到所述开口面处人脸的放置位置满足拍摄条件后，所述主控电路板控制驱动装置驱动遮光装置展开以遮挡使用者的头部，并控制采集装置采集人脸图像。
  8. 根据权利要求7所述的皮肤检测仪，其特征在于，所述遮光装置包括固定框架、可伸缩遮光罩和活动框架；所述固定框架固定在所述壳体上；所述可伸缩遮光罩一端与所述固定框架相连接，另一端与所述活动框架相连接。
  9. 根据权利要求8所述的皮肤检测仪，其特征在于，所述驱动装置包括电机、转轴、第一齿轮和第二齿轮；所述第一齿轮设置在电机上；所述第一齿轮和第二齿轮组成齿轮传动机构；所述第二齿轮和所述活动框架通过所述转轴串接。
  10. 根据权利要求9所述的皮肤检测仪，其特征在于，所述转轴的大端面外侧均匀设置有凸起侧筋；所述转轴的圆柱轴侧面设有一定位块，所述第二齿轮的安装孔设置有与所述定位块对应的第一定位槽，所述活动框架的安装孔设置有与所述定位块对应的第二定位槽。
  11. 根据权利要求7所述的皮肤检测仪，其特征在于，还包括：设置在所述壳体底面对应所述开口面位置的下巴支撑托，所述下巴支撑托上设置有下巴接触传感器；所述主控电路板通过检测是否有接收到下巴接触传感器发送的传感信号，控制驱动装置驱动遮光装置是否展开。
  12. 根据权利要求7所述的皮肤检测仪，其特征在于，还包括：设置在所述壳体顶部对应所述开口面位置的额头定位杆。
  13. 根据权利要求12所述的皮肤检测仪，其特征在于，所述额头定位杆设置有与额头两侧接触的第一触点和第二触点；所述第一触点上设置有第一额头接触传感器；所述第二触点上设置有第二额头接触传感器；所述主控电路板通过检测是否有接收到第一额头接触传感器和/或第二额头接触传感器发送的传感信号，控制驱动装置驱动遮光装置是否展开。
  14. 根据权利要求12所述的皮肤检测仪，其特征在于，所述额头定位杆设置有与额头接触的第三触点；所述第三触点上设置有第三额头接触传感器；所述主控电路板通过检测是否有接收到第三额头接触传感器发送的传感信号，控制驱动装置驱动遮光装置是否展开。
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