WO2018072598A1 - Procédé et dispositif de mesure de la taille du corps humain, et miroir intelligent - Google Patents

Procédé et dispositif de mesure de la taille du corps humain, et miroir intelligent Download PDF

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Publication number
WO2018072598A1
WO2018072598A1 PCT/CN2017/103296 CN2017103296W WO2018072598A1 WO 2018072598 A1 WO2018072598 A1 WO 2018072598A1 CN 2017103296 W CN2017103296 W CN 2017103296W WO 2018072598 A1 WO2018072598 A1 WO 2018072598A1
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WO
WIPO (PCT)
Prior art keywords
image
user
camera
height
distance
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PCT/CN2017/103296
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English (en)
Chinese (zh)
Inventor
陶林
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广州视源电子科技股份有限公司
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Publication of WO2018072598A1 publication Critical patent/WO2018072598A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
    • A47G1/02—Mirrors used as equipment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A61B5/1072—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring distances on the body, e.g. measuring length, height or thickness
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A61B5/1075—Measuring physical dimensions, e.g. size of the entire body or parts thereof for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A61B5/1079—Measuring physical dimensions, e.g. size of the entire body or parts thereof using optical or photographic means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices

Definitions

  • Embodiments of the present invention relate to measurement technologies, and in particular, to a method, a device, and a smart mirror for measuring a human body height.
  • the user stands in front of the background on which the height scale line is drawn, takes a picture through the camera, and then recognizes the scale of the ruler through the image recognition algorithm, thereby obtaining the height of the human body.
  • the invention provides a method, a device and a smart mirror for measuring the height of a human body, so as to realize the height of the user without measuring the scale.
  • an embodiment of the present invention provides a method for measuring a height of a human body, including:
  • the distance between the user and the lens of the camera is acquired by the ranging sensor;
  • the lens to image sensing of the camera Calculate the height of the user by the distance between the devices and the imaging height of the user on the image sensor of the camera;
  • the method further includes:
  • the image includes both the head contour and the foot contour of the human body, it is determined that the user image in the image is a whole body image.
  • the distance between the lens of the camera and the image sensor, and the imaging height of the user on the image sensor of the camera include:
  • the distance in the vertical direction between the first pixel point and the second pixel point is taken as the imaging height of the user's whole body on the image sensor of the camera.
  • the method further includes:
  • the user image in the image is a non-whole body image when at least one of the head contour and the foot contour does not exist in the image
  • the user is prompted to move in a direction away from the camera according to a preset prompt manner.
  • the method further includes:
  • the embodiment of the present invention further provides a human body height measuring device, including:
  • An image acquisition module configured to acquire an image by using a camera
  • a human distance measuring module configured to acquire a distance between a user and a lens of the camera by using a ranging sensor when the user image in the image is a whole body image
  • a height calculation module for calculating a height of the user according to a distance between the user and the lens of the camera, a distance between the lens of the camera and the image sensor, and an imaging height of the user on the image sensor of the camera;
  • the height display module is configured to display the height of the user to the user according to a preset display manner.
  • the human body height measuring device further includes:
  • An image edge detection module configured to perform edge detection on the image to obtain an edge detection map
  • a contour acquiring module configured to acquire a head contour and a foot contour of the human body according to the edge detection map
  • the whole body image determining module is configured to determine that the user image in the image is a whole body image when the image includes a head contour and a foot contour of the human body.
  • the human body height measuring device further includes:
  • a first pixel point determining module configured to determine, according to the head contour, a first pixel point in the image sensor corresponding to a highest point of a user head in the image;
  • a second pixel point determining module configured to determine, according to the foot contour, a second pixel point in the image sensor corresponding to a lowest point of a user foot in the image;
  • An imaging height determining module is configured to use a distance in a vertical direction between the first pixel point and the second pixel point as an imaging height of a user's whole body on an image sensor of the camera.
  • the human body height measuring device further includes:
  • a non-full body image determining module configured to determine, when the at least one of the head contour and the foot contour does not exist in the image, the user image in the image is a non-body image;
  • the mobile prompting module is configured to prompt the user to move in a direction away from the camera according to a preset prompt manner.
  • the human body height measuring device further includes:
  • a measurement instruction acquisition module configured to acquire a height measurement instruction
  • an operation execution module configured to perform an operation of acquiring an image when the height measurement instruction is acquired.
  • an embodiment of the present invention provides a smart mirror, including a mirror, a camera, and a ranging sensor, and further includes the human body height measuring device according to the second aspect.
  • the mirror surface is a plane mirror
  • the lens optical axis direction of the camera and the axial direction of the ranging sensor are both perpendicular to the mirror surface.
  • the embodiment of the invention acquires the image of the user through the camera, measures the distance between the user and the camera, calculates the height of the user and presents it to the user, solves the problem that the height of the scale needs to be prepared by the camera, and realizes the effect of measuring the height conveniently and quickly. .
  • FIG. 1 is a flow chart of a method for measuring a body height according to a first embodiment of the present invention
  • FIG. 2 is a flow chart of a method for measuring a body height according to a second embodiment of the present invention
  • FIG. 3 is a flow chart of a method for measuring a body height according to a third embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a human body height measuring device according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic front structural view of a smart mirror according to Embodiment 5 of the present invention.
  • FIG. 1 is a flowchart of a method for measuring a body height according to a first embodiment of the present invention.
  • the embodiment is applicable to a method for measuring a human body height using an intelligent terminal configured with a camera and a distance measuring sensor, and the method can be measured by a human body height.
  • the device is implemented by a hardware and/or software, and the human body height measuring method specifically includes the following steps:
  • Step 110 Acquire an image through a camera.
  • the camera includes a lens and an image sensor.
  • the lens of the camera is a fixed focus camera
  • the image sensor may be a CCD (Charge-coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). .
  • Step 120 When the user image in the image is a whole body image, the distance between the user and the lens of the camera is obtained by the ranging sensor.
  • measuring the height of the human body requires acquiring the whole body image of the user, obtaining an image through the camera, and determining whether the image of the user is included in the image.
  • the distance sensor is used to obtain the lens between the user and the camera.
  • the distance is the object distance in the optical imaging system.
  • the ranging sensor can be an infrared ranging sensor, an ultrasonic ranging sensor, or a laser ranging sensor.
  • Step 130 Calculate the height of the user according to the distance between the user and the lens of the camera, the distance between the lens of the camera and the image sensor, and the imaging height of the user on the image sensor of the camera.
  • the distance between the lens of the camera and the image sensor is the image distance in the optical imaging system, and the distance between the lens of the camera and the image sensor can be determined due to the fixed focus camera.
  • the imaging height of the user on the image sensor of the camera refers to the imaging height of the user's whole body on the image sensor, that is, the image height of the user's whole body. Then, according to the object distance, image distance and image height of the optical imaging system, the height of the object, that is, the height of the user, can be calculated.
  • Step 140 Display the height of the user to the user according to a preset display manner.
  • the preset display manner of the user's height can be displayed to the user in a text manner through a display screen configured on the smart terminal, and/or displayed to the user in a voice manner through an audio output device configured on the smart terminal, and/or
  • the wireless communication module configured on the smart terminal is sent to the preset mobile terminal.
  • the user can receive the height information through his mobile phone and save it in the phone's notebook.
  • the image of the user is acquired by the camera, and the distance between the user and the camera is measured, the height of the user is calculated and displayed to the user, and the problem of preparing the scale background by measuring the height of the camera is solved, thereby realizing convenient and quick measurement.
  • the effect of height is a simple measure of height.
  • the method further includes:
  • Step 210 Perform edge detection on the image to obtain an edge detection map.
  • the edge detection is performed on the image acquired by the camera.
  • the CANNY method, the SOBEL method, the ROBERTS method or the PREWITT method may be used to perform edge detection on the image.
  • the edge detection map is in progress An image obtained by edge line drawing after edge detection.
  • Step 220 Acquire a head contour and a foot contour of the human body according to the edge detection map.
  • the contour lines of the human body are screened, and whether the head contour and the foot contour are included in the contour line of the human body are determined.
  • Step 230 When the image includes both the head contour and the foot contour of the human body, determine that the user image in the image is a whole body image.
  • the method further includes:
  • the user image in the image is a non-body image when at least one of the head contour and the foot contour does not exist in the image
  • the preset prompting manner may be: displaying a prompt text and a prompt graphic through a display screen configured on the smart terminal, and/or playing the prompt voice through an audio output device configured on the smart terminal.
  • the technical solution of the embodiment obtains the user image contour in the image by performing edge detection on the image acquired by the camera, and measures the height and display of the user when determining that the user image in the image is a whole body image, thereby achieving convenient and quick access.
  • the effect of the user's height is a whole body image, thereby achieving convenient and quick access.
  • FIG. 3 is a flowchart of a method for measuring a body height according to a third embodiment of the present invention.
  • the technical solution of the embodiment is further refined based on the foregoing embodiment.
  • the method further includes:
  • Step 310 Determine, according to the head contour, a first pixel point in the image sensor corresponding to the highest point of the user's head in the image.
  • Step 320 Determine, according to the contour of the foot, a second pixel point in the image sensor corresponding to the lowest point of the user's foot in the image.
  • the image sensor in the camera is arranged by a certain number of pixel points, and the image acquired by the camera is a bitmap, that is, an image formed by combining a corresponding number of pixels, after acquiring the contour of the user's head, Determining the pixel of the highest point of the user's head in the image, and then determining the corresponding pixel point in the image sensor, determining the pixel point as the first pixel point, and similarly determining the second pixel point.
  • Step 330 The distance between the first pixel point and the second pixel point in the vertical direction is taken as the imaging height of the user's whole body on the image sensor of the camera.
  • the number of pixel rows in which the first pixel point and the second pixel point are vertically spaced in the image sensor may be determined, and each row of pixels in the image sensor The spacing between the points is determined, so the distance between the first pixel and the second pixel can be determined, ie the imaging height of the user's entire body on the image sensor of the camera is determined.
  • the method further includes:
  • the height measurement instruction is input to the intelligent terminal by the preset instruction input mode, and the user can input the height by clicking a button for starting measurement, a voice instruction, a gesture instruction, and/or other terminal device capable of communicating with the intelligent terminal for measuring the height.
  • Measurement instruction is a smart mirror, including: a mirror surface, a display screen, a CPU (Central Processing Unit) module, a camera, a ranging sensor, and a Bluetooth module.
  • the CPU module is connected to the display screen, the camera, the ranging sensor and the Bluetooth module respectively.
  • the smart mirror is connected with the Bluetooth-enabled weight scale via Bluetooth. When the user uses the Bluetooth-enabled weight scale to weigh the weight, the scale is intelligently transmitted via Bluetooth.
  • the mirror sends a height measurement command, and the smart mirror measures the user's height.
  • the technical solution of the embodiment is to determine the highest point of the user's head and the lowest point of the foot in the image sensing
  • the corresponding pixel in the device determines the imaging height of the user on the image sensor, so that the height of the user can be calculated according to the optical imaging law.
  • FIG. 4 is a schematic structural diagram of a human body height measuring device according to Embodiment 4 of the present invention, and the device specifically includes:
  • An image obtaining module 410 configured to acquire an image by using a camera
  • the human body distance measuring module 420 is configured to obtain a distance between the user and the lens of the camera through the ranging sensor when the user image in the image is a whole body image;
  • the height calculation module 430 is configured to calculate the height of the user according to the distance between the user and the lens of the camera, the distance between the lens of the camera and the image sensor, and the imaging height of the user on the image sensor of the camera;
  • the height display module 440 is configured to display the height of the user to the user according to a preset display manner.
  • the human body height measuring device further comprises:
  • An image edge detection module is configured to perform edge detection on the image to obtain an edge detection map
  • a contour acquisition module configured to acquire a head contour and a foot contour of the human body according to the edge detection map
  • the whole body image determining module is configured to determine that the user image in the image is a whole body image when the image includes both the head contour and the foot contour of the human body.
  • the human body height measuring device further comprises:
  • a first pixel point determining module configured to determine, according to a head contour, a first pixel point in an image sensor corresponding to a highest point of a user head in the image;
  • a second pixel point determining module configured to determine, according to the foot contour, a second pixel point in the image sensor corresponding to a lowest point of the user foot in the image;
  • An imaging height determining module is configured to use a distance in a vertical direction between the first pixel point and the second pixel point as an imaging height of the user's whole body on the image sensor of the camera.
  • the human body height measuring device further comprises:
  • a non-full body image determining module configured to determine that the user image in the image is a non-body image when at least one of the head contour and the foot contour does not exist in the image;
  • the mobile prompting module is configured to prompt the user to move away from the camera according to a preset prompt manner.
  • the human body height measuring device further comprises:
  • a measurement instruction acquisition module configured to acquire a height measurement instruction
  • the operation execution module is configured to perform an operation of acquiring an image when the height measurement instruction is acquired.
  • the image of the user is acquired by the camera, and the distance between the user and the camera is measured, the height of the user is calculated and displayed to the user, and the problem of preparing the scale background by measuring the height of the camera is solved, thereby realizing convenient and quick measurement.
  • the effect of height is a simple measure of height.
  • FIG. 5 is a schematic front view of a smart mirror according to a fifth embodiment of the present invention.
  • the smart mirror includes a mirror 510, a camera 520, and a distance measuring sensor 530, and further includes a human body height measuring device provided by the above embodiment.
  • the human body height measuring device is connected to the camera 520 and the distance measuring sensor 530 respectively.
  • the mirror surface 510 in FIG. 5 is exemplified by a rectangular mirror surface, but the mirror shape is not limited to a rectangle; and the setting positions of the camera 520 and the distance measuring sensor 530 are not limited.
  • the mirror 510 is a plane mirror, and the lens optical axis direction of the camera 520 and the axial direction of the ranging sensor 530 are perpendicular to the mirror surface 510.
  • the above product can perform the method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

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Abstract

L'invention concerne un procédé et un dispositif de mesure de la taille du corps humain, et un miroir intelligent. Le procédé de mesure de la taille du corps humain comprend les étapes suivantes : l'obtention d'une image au moyen d'une caméra (520) (110) ; lorsqu'une image d'utilisateur dans l'image est une image de corps entier, l'obtention d'une distance entre un utilisateur et une lentille de la caméra (520) au moyen d'un capteur de mesure de distance (530) (120) ; le calcul de la taille de l'utilisateur en fonction de la distance entre l'utilisateur et la lentille de la caméra (520), la distance entre la lentille de la caméra (520) et un capteur d'image et la taille d'imagerie de l'utilisateur sur le capteur d'image de la caméra (520) (130) ; et la présentation de la taille de l'utilisateur à l'utilisateur selon une présentation prédéfinie (140). Selon la solution technique de la présente invention, une image d'un utilisateur est obtenue au moyen d'une caméra (520), la distance entre l'utilisateur et la caméra (520) est mesurée, et la taille de l'utilisateur est calculée et présentée à l'utilisateur, ce qui permet d'améliorer la facilité de mesure de la taille.
PCT/CN2017/103296 2016-10-20 2017-09-25 Procédé et dispositif de mesure de la taille du corps humain, et miroir intelligent WO2018072598A1 (fr)

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CN201610915392.3 2016-10-20
CN201610915392.3A CN106377264A (zh) 2016-10-20 2016-10-20 一种人体身高测量方法、装置及智能镜子

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