WO2014048199A1 - Instrument de mesure et de mise en correspondance de lunette, serveur de mesure et de mise en correspondance de lunette et procédé de mesure et de mise en correspondance de lunette - Google Patents

Instrument de mesure et de mise en correspondance de lunette, serveur de mesure et de mise en correspondance de lunette et procédé de mesure et de mise en correspondance de lunette Download PDF

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Publication number
WO2014048199A1
WO2014048199A1 PCT/CN2013/082241 CN2013082241W WO2014048199A1 WO 2014048199 A1 WO2014048199 A1 WO 2014048199A1 CN 2013082241 W CN2013082241 W CN 2013082241W WO 2014048199 A1 WO2014048199 A1 WO 2014048199A1
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Prior art keywords
glasses
measuring
user
matching
image
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PCT/CN2013/082241
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English (en)
Chinese (zh)
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余勇波
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    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C13/00—Assembling; Repairing; Cleaning
    • G02C13/003—Measuring during assembly or fitting of spectacles
    • G02C13/005—Measuring geometric parameters required to locate ophtalmic lenses in spectacles frames

Definitions

  • the invention relates to the field of glasses, in particular to a glasses measuring and matching device, a glasses measuring and matching service end and a glasses measuring and matching method for selecting a suitable eyeglass by measuring facial facial feature data.
  • the main technical problem to be solved by the present invention is to provide a glasses measuring and matching device, a glasses measuring and matching service end, and a glasses measuring and matching method, which are convenient for the user to select glasses suitable for self-wearing.
  • the present invention provides a glasses measuring and matching device, comprising:
  • An image obtaining unit configured to acquire a facial image of the user
  • a storage unit configured to store the acquired facial image
  • a measuring unit configured to measure the stored facial image, thereby obtaining human facial feature data of the user
  • a matching unit configured to match the facial feature data of the human body to obtain a glasses parameter of the user.
  • the facial image includes a frontal image and a side image
  • the human facial feature data including at least one of two pupil spacing, a spacing between the ear curvature and the eye plane, and a bridge width
  • the glasses parameters including At least one of a frame width, a temple length, and a nose pad spacing.
  • a result output unit is further included, and is connected to the matching unit for outputting the glasses parameter by using a voice or a display screen.
  • the measuring unit further includes a scaling module, configured to process the data obtained by directly measuring the facial image according to a preset scaling ratio, to obtain human facial feature data of the user.
  • a scaling module configured to process the data obtained by directly measuring the facial image according to a preset scaling ratio, to obtain human facial feature data of the user.
  • the method further includes measuring the position identification, which is spaced apart from the image acquisition unit by a predetermined distance.
  • a head holder is further included, the head holder including a first fixing portion that positions the front side of the user and a second fixing portion that positions the side of the user.
  • the glasses measuring and matching device comprises a server and at least one client, the image obtaining unit is disposed at the client, and the storage unit, the measuring unit and the matching unit are all disposed at the server, The image acquisition unit and the storage unit are connected by a network.
  • a glasses measuring and matching server includes:
  • a storage unit configured to store a facial image of a user transmitted by at least one client
  • a measuring unit configured to measure the stored facial image, thereby obtaining human facial feature data of the user
  • a matching unit configured to match the facial feature data of the human body to obtain a glasses parameter of the user.
  • a method for measuring and matching glasses comprising the steps of:
  • the method further includes the step D: outputting the glasses parameters by using a voice or a display screen.
  • the invention has the beneficial effects that the glasses measuring and matching device, the glasses measuring and matching service end and the glasses measuring and matching method obtain the facial image of the user by photographing, and measure the facial facial feature data according to the facial image, thereby matching the reasonable
  • the glasses parameters enable the user to quickly and conveniently select glasses suitable for the user, including myopia glasses, reading glasses, sunglasses, etc., to avoid wasting a lot of time when the user selects the glasses to try on various glasses, especially for children. Users who are not sensitive provide a scientific and reasonable way to choose glasses.
  • FIG. 1 is a structural block diagram of a glasses measuring and matching device according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a measurement position identification according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a measurement position identification according to another embodiment of the present invention.
  • FIG. 4 is a flow chart of a method for measuring and matching glasses according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a glasses measuring and matching device according to an embodiment of the present invention.
  • the invention provides a glasses measuring and matching device, a glasses measuring and matching service end, and a glasses measuring and matching device or a glasses measuring and matching server, adopting a photographing manner to acquire a facial image of the user, and measuring the user from the facial image.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the glasses measuring and matching device mainly includes an image acquiring unit 10 , a storage unit 20 , a measuring unit 30 , and a matching unit 40 , and may further include a result output unit 50 .
  • Each unit may be integrated in the computer in whole or in part, and the computer may further include a control unit for performing unified control of the image acquisition unit 10, the storage unit 20, the measurement unit 30, the matching unit 40, the result output unit 50, and the like.
  • the image obtaining unit 10 can be a camera, a camera, a CCD (image sensor), and the like, and can be used to acquire a facial image of the user.
  • it is preferable to acquire two types of facial images of the user that is, a front image and a side image.
  • a front image when the front image is taken, the user's face should face the lens as much as possible, and both eyes. Directly view the lens to ensure that the resulting front image is symmetrically distributed; then, when taking a side image, the user's body or head should be rotated 90 degrees so that the face plane is exactly perpendicular to the plane in which the lens is located.
  • the glasses measuring and matching device further includes a head fixing frame disposed at a distance from the image acquiring unit 10 for positioning the user's head during photographing to reduce the head angle. Measurement error caused by movement or deflection.
  • the head holder includes a first fixing portion for positioning a front side of the user and a second fixing portion for positioning a side of the user.
  • the first fixing portion may be a U-shaped support frame fixed at an angle, which can support the user.
  • the second fixing portion is a U-shaped bracket that is 90 degrees away from the U-shaped support frame, so that the user's side faces the lens, of course, the first fixing frame and The second fixing frame can also be the same mechanism in different angle states, and the user can rotate it according to specific needs to facilitate positioning on the front side or the side side.
  • the storage unit 20 is configured to store the face image acquired by the image acquisition unit 10.
  • the storage unit 20 may be a memory card in the camera, and may directly store a facial image, or may be a storage space connected to the image acquisition unit 10 such as a camera through a data line, a wired or wireless network, or the like, such as a hard disk in a computer.
  • the measuring unit 30 is configured to measure the facial image stored by the storage unit 20, thereby obtaining the human facial feature data of the user. Since the human body face itself has a three-dimensional shape, in order to select the glasses that are most suitable for the user to wear, the present embodiment takes a picture of the user's face after taking the image of the user and then measures the key parts thereof, thereby obtaining body facial feature data reflecting the measurement result, for example, two The distance between the corners of the eyes, the length of the eyes, the height of the bridge of the nose, etc. can be used to select reference data for the specifications of the glasses. At present, the glasses industry usually adopts three kinds of glasses parameters to reflect the size specifications, namely the frame width, the length of the temple and the width of the middle beam.
  • the width of the middle beam is usually 17-18 mm.
  • the nose pad spacing can also be used as a key parameter for the optional glasses, so it can measure the three types of glasses parameters, such as the frame width, the temple length and the nose pad spacing, which are most relevant and relatively easy to measure. Human facial feature data, and each data is matched according to experience to obtain corresponding eyeglass parameters, thereby determining glasses suitable for the user.
  • the three facial features of the two pupil spacing, the distance between the ear bend and the eye plane, and the width of the nose are the most relevant to the three glasses parameters, namely the width of the eyeglass frame, the length of the temple and the distance between the nose pads. It is easy to measure by the captured face image of the user.
  • the spacing between the two frames is approximately equal to twice the width of the eyeglass frame, the spacing between the frame and the hinge, and the width of the center beam.
  • the spacing between the frame and the hinge of most glasses is about 7.5 mm.
  • the width is about 17 ⁇ 18mm, so the width of the eyeglass frame can be determined by measuring the distance between the two frames.
  • the width of the eyeglass frame can be 52-54mm; the distance between the ear bend and the eye plane and the length of the temple Direct correlation, for example, when the distance between the ear bend and the plane of the eye is 94 mm, the length of the temple can be 138-139 mm, and the width of the bridge of the nose is directly related to the distance between the nose pads. For example, when the width of the bridge of the nose is 20 mm, the distance between the nose pads can be 20-22 mm.
  • the above three sets of human facial feature data are preferably measured by the measuring unit 30, that is, the two pupil spacing and the nose bridge width are measured from the front image, and the distance between the ear curved portion and the eye plane is measured from the side image.
  • the measurement process may be manually measured or automatically measured by software. For example, when manually measuring, the front image of the user is opened, the coordinate positions corresponding to the left and right sides are selected, and two coordinate positions are connected to obtain a straight line, and then used.
  • the distance measuring tool measures the length of the straight line to obtain two spacings, then selects two coordinate positions on both sides of the nose bridge and connects them to obtain a second straight line, and then uses the distance measuring tool to measure the length of the straight line to obtain the width of the bridge of the nose, and finally opens the side of the user.
  • Image select the corresponding coordinate positions on the ear bend and the eye plane and connect them to obtain a third straight line, and then measure the length of the straight line by using a distance measuring tool to obtain the distance between the ear bend and the eye plane.
  • the software can automatically capture the above coordinate positions by searching for color boundaries or brightness boundaries.
  • the software automatically determines. The position is left ⁇ . Conversely, if the color of the image at a certain position is changed from the color of the human body to the background color, the software automatically determines that the position is the right ⁇ , and the distance between the two positions is automatically measured by the distance measuring tool. If there is a sudden increase in the brightness of the image at a certain position, the software automatically determines that the position is the left side of the bridge of the nose. Conversely, if the brightness of the image at a certain position suddenly decreases, the software automatically determines The position is on the right side of the bridge of the nose, and the distance between the two locations can be automatically measured using a distance measuring tool to obtain the bridge width.
  • the glasses measuring and matching device needs to cooperate with a measurement position identifier A, which may be a measurement line or a measurement point, and is spaced apart from the image acquisition unit 10 by a predetermined interval.
  • the distance S1, the head holder described above can be placed at the position, and when the parameters such as the focal length of the image acquisition unit 10 are constant, the ratio of the face image taken by the user at the measurement position marker to the real face shape is the same.
  • the measuring unit 30 can directly measure the real human facial feature data.
  • the measuring unit 30 further includes a scaling module, and the ratio of the facial image taken by the user at the measurement position identifier to the real facial shape is other ratio, and the scaling module can directly measure the facial image according to a preset scaling ratio.
  • the real user's facial feature data is obtained. For example, as shown in FIG.
  • a certain measurement position identifier B and the image acquisition unit 10 are separated by a predetermined distance S2, and the face obtained by the user at the position is taken.
  • the scaling module can divide the data obtained by directly measuring the facial image by 2 to obtain the real facial feature data of the user.
  • the matching unit 40 is configured to match the measured human facial feature data to obtain the user's glasses parameters.
  • the measured facial feature data of the human body can be automatically converted into the glasses parameters matching the data by means of a query form or by using software, and the matching relationship between the facial feature data of the human body and the glasses parameters is empirically obtained.
  • the glasses parameters can determine the glasses that are most suitable for the user to wear.
  • the result output unit 50 can also use the voice or display screen to output the glasses parameters for the user's reference.
  • the manner of using the above glasses measuring and matching device to match the user includes the following steps:
  • Step S101 The image acquisition unit is a camera, and the user needs to stand at the set measurement position identifier, and is separated from the camera by a predetermined distance.
  • Step S102 Positioning the front side of the user with the head holder at the measurement position mark to avoid offset or rotation of the position.
  • Step S103 The camera captures the front image of the user and saves it in the camera, and the ratio of the captured front image to the real facial shape of the user is 1:1.
  • Step S104 The side of the user is then positioned by the head holder to avoid offset or rotation of the position.
  • Step S105 The camera captures the side image of the user and saves it in the camera, and the ratio of the captured side image to the real facial shape of the user is also 1:1.
  • Step S106 The front and side images are measured by the measuring unit to obtain the facial feature data of the user.
  • Step S107 Match the facial feature data of the human body to obtain the glasses parameters of the corresponding user. After the measurement, manual reading can be used, and the obtained facial facial feature data can be artificially matched in the preset table to obtain corresponding eyeglass parameters, or can be automatically input into the matching unit for automatic matching.
  • Step S108 outputting the glasses parameters by using voice or display screen, for example, displaying matching glasses parameters on the display screen: “According to ergonomics, you are most suitable for wearing: the frame width is 54 mm; the center beam is 18 mm wide; the temple length is 139 mm. Glasses with a nose pad width of 20mm (the above data are allowed for +_2mm), you are welcome to start shopping.”
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the glasses measuring and matching device and method of the first embodiment can be used in a physical environment such as an optical shop, and the glasses measuring and matching device and method of the embodiment can extend the traditional glasses measuring and matching to the e-commerce field by means of network communication technology.
  • the glasses provider on the server side can perform network optician for the users on the client side, and the user can purchase comfortable and even beautiful glasses without leaving the house, thus further providing users with time and space convenience while reducing purchases. cost.
  • the glasses measuring and matching device of the embodiment includes a server and one or more clients at different positions, wherein the image obtaining unit 10 is disposed at each client, for example, a client computer of the user.
  • Client or server can be installed in the service provider computer of the glasses supplier in the form of software, and the result output unit 50 can be set according to specific needs.
  • the image acquisition unit 10, the storage unit 20, the measurement unit 30, the matching unit 40, and the result output unit 50 of the present embodiment are used in the same manner as the first embodiment.
  • the difference between the embodiment and the first embodiment lies in the image acquisition unit 10 and the storage.
  • the units 20 are connected by a communication network.
  • the communication network may be a traditional Internet network.
  • the facial image may be transmitted to the storage by using a certain communication link.
  • Unit 20 is such that it stores, measures, matches, and the like.
  • the user's glasses parameters can be output on the client, or can be fed back to the client for reference by the communication network.
  • the method for performing network optician on the user by using the above glasses measuring and matching device includes the following steps:
  • the image acquisition unit 10 of the client is a camera attached to the computer, and the user needs to be separated from the camera by a distance according to the requirements of the glasses supplier (the distance between the captured facial image and the user's real facial shape) a predetermined ratio, for example 1:1), to take a self-photograph to obtain a facial image, and then transmit the facial image to the service provider of the glasses supplier by using a network; or when the user transmits the video data with the facial image to the server in real time for the glasses When the supplier views through the video window, the glasses supplier can capture the user's facial image.
  • the requirements of the glasses supplier the distance between the captured facial image and the user's real facial shape
  • a predetermined ratio for example 1:1
  • the server computer uses the measuring unit to measure the front and side images to obtain the facial features data of the user.
  • the measuring unit also performs data on the data.
  • the scaling process finally obtains the real user's facial feature data.
  • the server computer uses the matching unit to match the facial feature data of the human body to obtain the corresponding glasses parameters of the user.
  • manual reading can be used, and the obtained facial facial feature data can be artificially matched in the preset table to obtain corresponding eyeglass parameters, or can be automatically input into the matching unit for automatic matching.
  • the server computer uses the voice or display to output the glasses parameters, and transmits the eye parameters to the client computer through the network, and finally displays the matching glasses parameters on the display screen of the client computer: "According to ergonomic principles, You are most suitable for wearing: glasses frame width 54mm; center beam width 18mm; temple length 139mm; nose pad width 20mm (the above data are allowed + 2mm) glasses, you are welcome to start shopping.” Based on these parameters, users can also In the range of glasses that meet the specifications of the wearer, the frame model displayed by the picture is selected to have a personalized frame color, frame shape, frame material, and the like.
  • the glasses measuring and matching device, the glasses measuring and matching server and the glasses measuring and matching method measure the facial feature data of the user by photographing the facial image of the user, and obtain the matching eye parameters, thereby enabling the user to select the suitable user quickly and conveniently.
  • Wearing glasses including myopia glasses, reading glasses, sunglasses, etc., to avoid a lot of time when users choose glasses to try on a variety of glasses, especially for children and other users who are not sensitive to try-on, provide a scientific and reasonable The choice of glasses.

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  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Eye Examination Apparatus (AREA)
  • Eyeglasses (AREA)
PCT/CN2013/082241 2012-09-28 2013-08-26 Instrument de mesure et de mise en correspondance de lunette, serveur de mesure et de mise en correspondance de lunette et procédé de mesure et de mise en correspondance de lunette Ceased WO2014048199A1 (fr)

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CN201210367117.4A CN103690171A (zh) 2012-09-28 2012-09-28 眼镜测配装置、眼镜测配服务端和眼镜测配方法
CN201210367117.4 2012-09-28

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US10685457B2 (en) 2018-11-15 2020-06-16 Vision Service Plan Systems and methods for visualizing eyewear on a user
EP3973346B1 (fr) 2020-02-19 2024-12-25 Pupil Labs GmbH Module d'oculométrie et dispositif pouvant être porté sur la tête

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CN106842630A (zh) * 2017-03-14 2017-06-13 武汉百时尚文化创意股份有限公司 一种眼镜有码的实现方法及系统
CN107301413A (zh) * 2017-05-16 2017-10-27 广东工业大学 一种采集人脸图像的方法和简易装置
CN108594473A (zh) * 2018-06-04 2018-09-28 苏州英菲斯智能科技股份有限公司 智能测量式眼镜架
CN110569829B (zh) * 2019-07-30 2023-06-13 南阳师范学院 一种配眼镜参数自动检测识别匹配系统
CN112162418A (zh) * 2020-08-29 2021-01-01 苏州无用科技有限公司 镜片配镜远程加工方法及加工系统
CN113033413A (zh) * 2021-03-26 2021-06-25 西安闻泰信息技术有限公司 一种眼镜推荐方法、装置、存储介质和终端

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Publication number Priority date Publication date Assignee Title
US10685457B2 (en) 2018-11-15 2020-06-16 Vision Service Plan Systems and methods for visualizing eyewear on a user
EP3973346B1 (fr) 2020-02-19 2024-12-25 Pupil Labs GmbH Module d'oculométrie et dispositif pouvant être porté sur la tête

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