GB2147421A - Method of measuring depth of skin wrinkles and device therefor - Google Patents
Method of measuring depth of skin wrinkles and device therefor Download PDFInfo
- Publication number
- GB2147421A GB2147421A GB08423538A GB8423538A GB2147421A GB 2147421 A GB2147421 A GB 2147421A GB 08423538 A GB08423538 A GB 08423538A GB 8423538 A GB8423538 A GB 8423538A GB 2147421 A GB2147421 A GB 2147421A
- Authority
- GB
- United Kingdom
- Prior art keywords
- video
- monitor
- dual
- depth
- value
- 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.)
- Granted
Links
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
- A61B5/442—Evaluating skin mechanical properties, e.g. elasticity, hardness, texture, wrinkle assessment
-
- 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
-
- 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
-
- 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
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The method utilizes a video camera 1 which magnifies the skin surface by 10-100 times and is connected to a tape recorder 6 and a monitor T.V. 7. The magnified video signal is then dual-valued by a video pattern sensor 9 and projected on to a monitor TV set (8). A manual control device (10) for establishing luminosity values is then operated to measure the difference between the value on an indicator (11) when the darkest part on the monitor TV picture (8) becomes white and the value on the indicator (11) when the lightest part becomes dark (difference in luminosity). By multiplying the difference in luminosity with the conversion factor of the difference in luminosity and depth, the depth of wrinkles can be calculated. <IMAGE>
Description
SPECIFICATION
Method of measuring sulcus cutis depth of wrinkles and device therefor
The present invention relates to a method of measuring sulcus cutis on the skin surface and depth of wrinkles by utilizing a video camera and a device therefor.
The human skin may appear generally smooth to the naked eye, but actually it consists of areas elevated on the surface of the skin called "crista cutis", depressed ridges called "sulcus cutis", and fine net-like parts composed of wrinkles or the like. Generally speaking, younger people have finer skin, and as they grow older, sulcus cutis or skin ridges become deeper and more wrinkles are liable to form. Conventionally, in order to judge skin condition for medical diagnosis or for cosmetic purposes, methods such as press- ing silicon resin against the skin to make a model and then measuring the depth of sulcus cutis by a microscope, have been employed.
However, such methods are disadvantageous in that measuring is not easy, as making a model by silicon resin requires technical practice and training, and measuring the depth of ridges by a microscope also requires advanced techniques.
The object of the present invention is to realize easy and accurate measuring of ridges in view of the disadvantage of the conventional measuring means referred to above.
Another object of the present invention is to enable anyone to perform measurement.
More specifically, the present invention comprises a video camera, a monitor TV set to show the video taken by the camera, and a video pattern sensor for dual-valuing the pictures on a monitor TV set exclusively for dualvalued pictures, the video pattern sensor being capable of establishing the pictures on the monitor TV set for dual-valued pictures at any desired threshold by the operation of a manual control device.
The present invention also concerns a measuring method utilizing the above-mentioned device comprising an operation to show pictures of the skin surface enlarged by the video camera on the monitor TV set, an operation to dual-value the pictures on the monitor TV set and to show them on the monitor TV set exclusively for dual-valued pictures, an operation to adjust the manual control device for the threshold until the lightest part of the crista cutis becomes dark on the monitor TV set exclusively for dual-valved pictures and to measure the value at that time, and an operation to adjust the manual control device for the threshold until the darkest part of the sulcus cutis becomes white on the monitor TV set exclusively for dual-valued pictures and to measure the value at that time.
In the accompanying drawings,
Figures 1-3 show an embodiment of the device of the present invention,
Figure 1 is a schematic view showing the device as a whole;
Figure 2 is a cross-section of the end of a fiber scope;
Figure 3 is a flow chart showing the function of the video pattern sensor, and
Figures 4 and 5 are reproductions of photographs of TV screen displays obtained.
Now the present invention will be described in detail in accordance with the embodiment shown in Figs. 1-3.
In the drawings, a video camera 1 for video analysis is provided with a C-mount lens 2 for making the camera's magnification 10-100 times. At the end of the C-mount lens is mounted a hard fiber scope 5 provided with a light source device 3 as the light source, which houses an optical fiber glass 4 arranged to irradiate the skin surface which is about 10 mm apart from the outer periphery of its end.
The video camera 1 is connected to a video tape recorder 6 which, in turn, is connected to a monitor color TV set 7 which shows the video from the tape recorder. The monitor color TV set 7 is connected to a video pattern sensor 9 which produces dual-value video signals and projects the dual-valued pictures on the monitor TV set 8 exclusively for dualvalved pictures. The video pattern sensor 9 is provided with a manual control device 10 which can establish luminosity of the dualvalued pictures on the monitor TV set 8 at a desired threshold and an indicator 11 which shows values of the device 10. Further, in the present embodiment values shown on the indicator 11 are arranged to be put into a computer 12.
The present device as described above is used in the following manner.
Firstly, the fiber scope 5 attached to the video camera 1 is applied to the suface of skin, and while irradiating light on the surface by the optical glass fiber 4, the camera magnifies it for a pre-determined magnification (e.g. 100 times) and projects it on the monitor TV set 7. In the video of the projected skin surface, the sulcus cutis is shown dark while the crista cutis is light as shown in Fig. 4.
Video signals from the monitor TV set 7 is put into the video pattern sensor 9 to be dualvalued, and the dual-valued video is projected on the monitor TV set 8 exclusively for dualvalued pictures as shown in Fig. 5. Then, looking at the monitor TV set 7, the lightest part of the crista cutis and the darkest part of the sulcus cutis or wrinkles close to the crista cutis, are determined.The device 10 of the video pattern sensor 9 for setting the threshold is then operated, and the value on the indicator 11 when the darkest part determined above becomes white on the monitor
TV set 8 exclusively for dual-valued pictures,
is read. (The value is called L min.) Also, the value on the indicator 11 of the device 10 when the lightest part as determined above
becomes dark on the monitor TV set 8 exclusively for dual-valued pictures, is read. (The value is called L max.) The values, L min. and
L max. are respectively put into the computer
12. The sulcus cutis or the depth of wrinkles can be calculated by multiplying the difference between the measured values L min. and
L max. (difference is luminosity) by the conversion factor K of luminosity and depth which has been calculated in advance.
As described above, the device and the measuring method of the present invention enable measurement of the sulcus cutis or the depth of wrinkles speedily and accurately by taking relatively easy steps of deciding the spot to be measured, adjusting the device 10 for establishing the threshold and reading the value thereof. The device and the method thereof are, thus, more advanced than the conventional measuring means.
Claims (4)
1. A method of measuring sulcus cutis or depth of wrinkles comprising an operation to magnify the skin surface by a video camera and to produce the video thereof on a monitor
TV set, an operation to dual-value the pictures on the monitor TV set and to project the dualvalued video on a monitor TV set exclusively for dual-valued video, an operation to adjust a manual control device for establishing the threshold until the lightest part of crista cutis of the skin surface becomes dark on the monitor TV set exclusively for dual-valued video and to measure the value at that time, and an operation to adjust the manual control device for establishing the threshold until the darkest part of the sulcus cutis becomes white on the monitor TV set exclusively for dualvalued video and to measure the value at that time.
2. A device for measuring sulcus cutis or the depth of wrinkles comprising a video camera, a monitor TV set for projecting the video taken by the video camera, and a video pattern sensor which dual-value the video on the monitor TV set and projects the dualvalued video on a monitor TV set exclusively for dual-valued video; the video pattern sensor being characterised in that it has a manual control device for establishing the threshold and an indicator which shows values of the manual control device.
3. A method of measuring sulcus cutis of the depth of wrinkles substantially as hereinbefore described with reference to the accompanying drawings.
4. A device for measuring sulcus cutis of the depth of wrinkles substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58172720A JPS6063030A (en) | 1983-09-19 | 1983-09-19 | Skin wrinkle depth method and apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8423538D0 GB8423538D0 (en) | 1984-10-24 |
| GB2147421A true GB2147421A (en) | 1985-05-09 |
| GB2147421B GB2147421B (en) | 1987-10-14 |
Family
ID=15947075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08423538A Expired GB2147421B (en) | 1983-09-19 | 1984-09-18 | Method of measuring depth of skin wrinkles and device therefor |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS6063030A (en) |
| KR (1) | KR870000632B1 (en) |
| CH (1) | CH667583A5 (en) |
| DE (1) | DE3433195A1 (en) |
| FR (1) | FR2552220B1 (en) |
| GB (1) | GB2147421B (en) |
| IT (2) | IT1199409B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6571003B1 (en) | 1999-06-14 | 2003-05-27 | The Procter & Gamble Company | Skin imaging and analysis systems and methods |
| WO2003079881A2 (en) * | 2002-03-22 | 2003-10-02 | Unilever Plc | Cross-polarized imaging method for measuring skin ashing |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6459145A (en) * | 1987-08-31 | 1989-03-06 | Kao Corp | Analyzer of surface nature |
| FR2654826B1 (en) * | 1989-11-20 | 1993-05-21 | Toulouse Inst Nat Polytech | METHOD AND DEVICE FOR DIRECT DETERMINATION OF THE RELIEF OF A SURFACE. |
| DE4313258A1 (en) * | 1993-04-23 | 1994-10-27 | Beiersdorf Ag | Method and device for the quantitative measurement of the texture of the human skin surface by means of registration, reproduction and analysis of image information |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1449044A (en) * | 1972-11-14 | 1976-09-08 | Kongsberg Vapenfab As | Procedures and apparatuses for determining the shapes of surfaces |
| US4041286A (en) * | 1975-11-20 | 1977-08-09 | The Bendix Corporation | Method and apparatus for detecting characteristic features of surfaces |
| US4113389A (en) * | 1976-04-19 | 1978-09-12 | Morton Kaye | Optical measurement system |
| US4242702A (en) * | 1976-12-01 | 1980-12-30 | Hitachi, Ltd. | Apparatus for automatically checking external appearance of object |
| DE3147856A1 (en) * | 1981-12-03 | 1983-06-16 | Battelle-Institut E.V., 6000 Frankfurt | Method and device for the quantitative determination of surface structures |
-
1983
- 1983-09-19 JP JP58172720A patent/JPS6063030A/en active Granted
-
1984
- 1984-09-06 FR FR848413697A patent/FR2552220B1/en not_active Expired
- 1984-09-10 DE DE19843433195 patent/DE3433195A1/en active Granted
- 1984-09-13 IT IT03569/84A patent/IT1199409B/en active
- 1984-09-13 IT IT1984A03569A patent/IT8403569A1/en unknown
- 1984-09-14 CH CH4400/84A patent/CH667583A5/en not_active IP Right Cessation
- 1984-09-14 KR KR1019840005618A patent/KR870000632B1/en not_active IP Right Cessation
- 1984-09-18 GB GB08423538A patent/GB2147421B/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NONE * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6571003B1 (en) | 1999-06-14 | 2003-05-27 | The Procter & Gamble Company | Skin imaging and analysis systems and methods |
| WO2003079881A2 (en) * | 2002-03-22 | 2003-10-02 | Unilever Plc | Cross-polarized imaging method for measuring skin ashing |
| WO2003079881A3 (en) * | 2002-03-22 | 2004-03-11 | Unilever Plc | Cross-polarized imaging method for measuring skin ashing |
| US7024037B2 (en) | 2002-03-22 | 2006-04-04 | Unilever Home & Personal Care Usa, A Division Of Conopco, Inc. | Cross-polarized imaging method for measuring skin ashing |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8403569A1 (en) | 1986-03-13 |
| FR2552220A1 (en) | 1985-03-22 |
| IT1199409B (en) | 1988-12-30 |
| CH667583A5 (en) | 1988-10-31 |
| IT8403569A0 (en) | 1984-09-13 |
| JPS6063030A (en) | 1985-04-11 |
| DE3433195A1 (en) | 1985-04-04 |
| DE3433195C2 (en) | 1989-08-03 |
| KR850002388A (en) | 1985-05-13 |
| FR2552220B1 (en) | 1989-03-03 |
| JPH0221249B2 (en) | 1990-05-14 |
| GB8423538D0 (en) | 1984-10-24 |
| KR870000632B1 (en) | 1987-04-03 |
| GB2147421B (en) | 1987-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950918 |