EP2996548A1 - Verfahren und vorrichtung zur 3 d-vermessung der hautoberfläche und oberflächennaher hautschichten - Google Patents
Verfahren und vorrichtung zur 3 d-vermessung der hautoberfläche und oberflächennaher hautschichtenInfo
- Publication number
- EP2996548A1 EP2996548A1 EP14731152.6A EP14731152A EP2996548A1 EP 2996548 A1 EP2996548 A1 EP 2996548A1 EP 14731152 A EP14731152 A EP 14731152A EP 2996548 A1 EP2996548 A1 EP 2996548A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- skin
- confocal
- sensor
- image
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012876 topography Methods 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims description 9
- 238000011156 evaluation Methods 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 4
- 239000002537 cosmetic Substances 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 201000009030 Carcinoma Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000012641 Pigmentation disease Diseases 0.000 description 1
- 208000000453 Skin Neoplasms Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 238000004624 confocal microscopy Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 201000000849 skin cancer Diseases 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- A61B5/0068—Confocal scanning
-
- 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
- A61B5/44—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/002—Scanning microscopes
- G02B21/0024—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
- G02B21/0028—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders specially adapted for specific applications, e.g. for endoscopes, ophthalmoscopes, attachments to conventional microscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/002—Scanning microscopes
- G02B21/0024—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
- G02B21/0036—Scanning details, e.g. scanning stages
- G02B21/004—Scanning details, e.g. scanning stages fixed arrays, e.g. switchable aperture arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/002—Scanning microscopes
- G02B21/0024—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
- G02B21/0052—Optical details of the image generation
- G02B21/006—Optical details of the image generation focusing arrangements; selection of the plane to be imaged
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4038—Image mosaicing, e.g. composing plane images from plane sub-images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2576/00—Medical imaging apparatus involving image processing or analysis
- A61B2576/02—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/0035—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for acquisition of images from more than one imaging mode, e.g. combining MRI and optical tomography
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30088—Skin; Dermal
Definitions
- the invention relates to a method for the 3D measurement of the skin surface and skin layers near the surface by means of a confocal sensor with integrated color camera arranged in a handheld device.
- confocal technique is used to measure the topography of the surface of materials in the industrial sector. From the biological field, confocal microscopy is also known, namely for the acquisition of sectional images of certain surfaces due to the high
- Deep discrimination of applied technology usually with fluorescent markers, is performed.
- fluorescent markers In addition, it is known that infrared light can be illuminated in the skin structure and observed microscopically within it.
- Skin surface or skin layers close to the surface are scanned one after the other point by point to generate an image composed of these points.
- Dotting method known to be able to perform investigations in the deeper area of the skin Dotting method known to be able to perform investigations in the deeper area of the skin.
- Dotting method for example for the diagnosis of skin cancer has the disadvantage that carcinomas must be opened and thus an increased risk of further spread by scattering arises.
- the invention has for its object to be able to carry out a process with a single device, with the help of both the skin surface in vivo
- the structure of the skin can be determined a few millimeters deep, with the absorption rate and the
- the invention solves this problem by a method for 3D measurement of the skin surface and near-surface skin layers by means of a in a
- Handset arranged confocal sensor with integrated color camera the handset is approached with a sensor head by the operator to the examined body of the skin and a color image of the skin surface is recorded, after which the sensor is automatically switched to confocal mode, in which one of a variety of simultaneous capture of all for one
- a device for carrying out the method consisting of a arranged in a portable housing confocal sensor with a stationary microlens array, the confocal sensor having a monochromatic radiation source, further comprising a color overview camera with a white light radiation source, said the camera can be switched into the measuring path by means of a beam splitter, and both the camera and the confocal sensor are connected to a signal evaluation unit. This can be connected to an external monitor.
- Monitor is first visited by a several millimeters wide field of view, the skin site in question. This is simplified by the very compact dimensions of the sensor head, whose dimension does not significantly exceed the measuring field size. This is done first with the help of visual
- the sensor head Observation of the sensor head brought to the desired location and then approached by means of the life color monitor image of the area to be examined. Since the image from the sensor head is sharp to a distance of a few millimeters (about 5 mm), it can be placed on the skin or moved a short distance above it. If the area in question is found, the sensor will be within less
- Milliseconds switched to the confocal operation, which absorbs within a few seconds consisting of many hundreds of confocal images stack (typically 200 to 1000 images).
- an image for this stack is generated in each case in real time by the simultaneous use of a number of pixels required for the image by the use of a stationarily arranged microlens array.
- a scanner located in the sensor ensures that the entire axial measuring range (Z direction) is traversed.
- recorded image stack consists of equidistant frames.
- microlens array also has the advantage that it contributes to the compactness of the device in that it is also part of the optical system itself.
- the previously recorded color image is displayed as an overlay of the 3 D topography.
- striking pigmentations can be superimposed microscopically with the present 3 D topography.
- the measuring field can be automatically extended (see claim 2). After completion of the pile recording then follows a z. B.
- High-speed real-time image are generated, for. B. to measure the perfusion of special areas.
- the confocal sensor has a matrix sensor in CMOS or CCD technology, as well as the color overview camera.
- the confocal transmitter has a "look" inside the skin
- monochromatic radiation source in this case an infrared radiation source, which radiates in the range between 800 and 950 nm, wherein selected according to claim 8 as the measurement wavelength 850 nm or 940 nm.
- the device according to the invention can be used in cancer diagnostics for the early detection, observation and diagnosis of changes.
- cosmetic effects can be observed, e.g. the penetration depth of cosmetic preparations as well as the depth effect of the treatment. It is also possible to determine the thickness and structure in the case of burn injuries or skin grafts, the results of the investigation being obtained within a few seconds thanks to the technique according to the invention by means of a single device.
- FIGS. 1 and 2 The invention is illustrated and explained below with reference to FIGS. 1 and 2:
- FIG. 1 shows schematically the optical structure of the device according to the invention
- 2 shows a more detailed illustration of the structure of the confocal sensor.
- FIG. 3 Flowchart of the measurement
- the optical structure of the device according to the invention is shown schematically. It consists essentially of the groups A and B, wherein in group A the confocal measurement setup and in group B a digital color camera is shown.
- the reference numeral 1 denotes the object plane (in this case, the skin surface).
- a focusing lens which emitted by the collimated radiation source 13 monochromatic light (infrared) and that of the also collimated
- White light source 12 originating light focused on the object plane 1.
- the light reflected from the object plane is imaged via a further focusing lens 4 and the microlens array 5 arranged in the intermediate image plane through the imaging optics 7, which consists of the elements 21, 22, 23 from FIG. 2, on a CCD matrix sensor 8 the beam splitter 3 and the imaging optics 10 on the
- Matrix sensor 11 (camera).
- the lens 4 is the only moving part of the assembly, since it is for the
- Focusing is responsible for the layered image acquisition.
- FIG. 1 depicts the foci of the microlenses on the object 19.
- the light reflected by the object 19 is focused on the previously described elements 16, 5 and 6 via the focusing optics 23 on the aperture 21 and directed via the lens 22 to the CCD sensor.
- the aperture diameter of the aperture 21 is chosen so that it corresponds to the emission surface of the light source 13.
- the group B is between the color camera 1 and a beam splitter 9 the
- Focusing optics 10 arranged. About the beam splitter 9, the light of the white light radiation source 12 is deflected into the optical path of the confocal sensor A, where it is directed by means of the semitransparent mirror 3 (beam splitter) on the object plane 1 of the object 19.
- FIG. 3 shows the time sequence of a measurement.
- the mode 100 indicates that a recording of a life color image stream of the measurement object 19 takes place by means of the color camera (group B), the duration of this recording being user-controlled (overview image).
- the camera mode switches to confocal mode.
- the focal plane 1 is pushed through the entire volume of the measurement object 19.
- Measurement can be seen inside the skin, wherein as indicated above, respectively by axial scanning a stack of images is generated.
- the measured data in slice images of the skin are calculated and displayed on an (external) monitor, also not shown.
- mode 100 a life color image can again be displayed, while in mode 300 confocal is finally focused to a specific depth and a stream of images is recorded.
- mode 300 z. B. in a certain depth, the blood circulation can be displayed in real time and / or evaluated.
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Analytical Chemistry (AREA)
- Theoretical Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Dermatology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Ophthalmology & Optometry (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013008278.1A DE102013008278B4 (de) | 2013-05-15 | 2013-05-15 | Verfahren und Vorrichtung zur 3 D-Vermessung der Hautoberfläche und oberflächennaher Hautschichten |
PCT/EP2014/001274 WO2014183860A1 (de) | 2013-05-15 | 2014-05-12 | Verfahren und vorrichtung zur 3 d-vermessung der hautoberfläche und oberflächennaher hautschichten |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2996548A1 true EP2996548A1 (de) | 2016-03-23 |
Family
ID=50976577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14731152.6A Withdrawn EP2996548A1 (de) | 2013-05-15 | 2014-05-12 | Verfahren und vorrichtung zur 3 d-vermessung der hautoberfläche und oberflächennaher hautschichten |
Country Status (4)
Country | Link |
---|---|
US (1) | US9687154B2 (de) |
EP (1) | EP2996548A1 (de) |
DE (1) | DE102013008278B4 (de) |
WO (1) | WO2014183860A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105411532A (zh) * | 2015-12-30 | 2016-03-23 | 广东欧珀移动通信有限公司 | 皮肤状况检测方法和装置 |
EP3414612A4 (de) | 2016-02-11 | 2020-03-04 | Montana State University | Mikroskopobjektiv mit integrierter breitfeldkamera und strahlabtastvorrichtung |
US11122206B2 (en) | 2016-11-08 | 2021-09-14 | Preh Holding, Llc | Personal care device with camera |
US10511777B2 (en) | 2016-11-08 | 2019-12-17 | Thomas Nichols | Personal care device with camera |
CN108267083A (zh) * | 2017-12-28 | 2018-07-10 | 顺丰科技有限公司 | 一种3d相机体积测量方法及系统 |
CN108399596B (zh) * | 2018-02-07 | 2020-12-18 | 深圳奥比中光科技有限公司 | 深度图像引擎及深度图像计算方法 |
CN108449529B (zh) | 2018-02-07 | 2020-12-18 | 深圳奥比中光科技有限公司 | 深度计算处理器及移动终端 |
CN109543563B (zh) * | 2018-11-01 | 2021-08-24 | Oppo广东移动通信有限公司 | 安全提示方法、装置、存储介质及电子设备 |
USD1000624S1 (en) | 2019-12-27 | 2023-10-03 | Thomas Nichols | Personal care device with camera |
US20210353213A1 (en) * | 2020-05-15 | 2021-11-18 | MyWoundDoctor, LLC | System and method of wound assessment and treatment |
CN115605124A (zh) * | 2020-05-26 | 2023-01-13 | 登士柏西诺德公司(Us) | 用于多模态软组织诊断的方法和装置 |
CN112229338B (zh) * | 2020-11-27 | 2022-05-17 | 中国计量科学研究院 | 一种无标准片对零的双光谱共焦测量厚度方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070003114A1 (en) * | 2003-08-29 | 2007-01-04 | Hendriks Robert Frans M | Biometrical identification device |
DE602005009432D1 (de) * | 2004-06-17 | 2008-10-16 | Cadent Ltd | Verfahren und Gerät zur Farbbildformung einer dreidimensionalen Struktur |
US7460248B2 (en) * | 2006-05-15 | 2008-12-02 | Carestream Health, Inc. | Tissue imaging system |
DE102008039643A1 (de) * | 2008-08-25 | 2010-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur interferometrischen Messung dreidimensionaler biometrischer Merkmale in Haut |
US8300220B2 (en) * | 2009-02-25 | 2012-10-30 | Vanderbilt University | Device and method for non-invasively evaluating a target of interest of a living subject |
DE102011082759A1 (de) * | 2011-09-15 | 2012-07-26 | Henkel Ag & Co. Kgaa | Verfahren zur individualisierten Hautbehandlung |
BR112015003464B1 (pt) * | 2012-08-15 | 2022-01-18 | Lucid, Inc | Sistemas e processos para formação de imagens de tecido |
-
2013
- 2013-05-15 DE DE102013008278.1A patent/DE102013008278B4/de not_active Expired - Fee Related
-
2014
- 2014-05-12 WO PCT/EP2014/001274 patent/WO2014183860A1/de active Application Filing
- 2014-05-12 EP EP14731152.6A patent/EP2996548A1/de not_active Withdrawn
- 2014-05-12 US US14/890,681 patent/US9687154B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2014183860A1 * |
Also Published As
Publication number | Publication date |
---|---|
US9687154B2 (en) | 2017-06-27 |
WO2014183860A1 (de) | 2014-11-20 |
DE102013008278A1 (de) | 2014-11-20 |
DE102013008278B4 (de) | 2020-11-05 |
US20160081553A1 (en) | 2016-03-24 |
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