CN205215187U - Skin detecting system based on it is multispectral - Google Patents
Skin detecting system based on it is multispectral Download PDFInfo
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- CN205215187U CN205215187U CN201521002033.6U CN201521002033U CN205215187U CN 205215187 U CN205215187 U CN 205215187U CN 201521002033 U CN201521002033 U CN 201521002033U CN 205215187 U CN205215187 U CN 205215187U
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Abstract
The utility model discloses a skin detecting system based on it is multispectral. Including the test probe device, spectral detection device, system control device, data processing feedback device, the test probe device comprises a plurality of LED light sources, filter plate and optic fibre, light source head device comprises white light LED and the provocative different peak wavelength's of a plurality of fluorescence spectra of being used for LED, wavelength coverage coverability 295 -420nm, the optic fibre device is the large core fiber, the spectral detection device comprises small -size spectrum appearance or bandpass filter and light detector's the combined system of having integrateed, the system control device comprises microprocessor and drive and control circuit, data processing feedback device includes microprocessor and display screen, microprocessor carries out analysis processes with the spectral signature of record to on feeding back the display screen with spectral signature and analysis result in real time. The utility model discloses can quick, effectual detection, detecting system is low -priced, portable, small -size, is suitable for the wide application.
Description
Technical field
This utility model relates to a kind of skin detecting method based on fluorescence spectrum and visible near-infrared reflectance spectrum and system, can realize skin properties parameter, as fairness, moisture, elastic fast, accurate evaluation.Belong to optical sensing technical field and medical detection field.
Background technology
In recent years, along with the raising of people's living standard, the health care consciousness of people and improving constantly the pursuit of U.S., skin protection and health care have become an industry grown steadily.Consumer and industrial quarters are for the every characteristic of skin, parameter simultaneously, as: the checkout gear of fairness, moisture, elasticity etc. has had more demand.
Just based on such demand, in recent years, market has occurred the product of some skin detection, be mainly divided into two classes, a kind of is skin detection instrument based on graphical analysis, apparatus expensive, bulky.Another kind is the skin test pen based on impedance detection, and if patent No. CN201767951U and patent No. CN103622694A is the device based on similar principles, although small-sized, function is simple, and accuracy of measurement is poor.This utility model then proposes a kind of detection method of composing based on many LED light, visible near-infrared reflectance spectrum is combined with fluorescence spectrum, to determining that the substance characteristics such as melanin, collagen protein of skin properties comprehensively analyzes detection by the multispectral of correspondence, cost is low, the system integration, small-sized, portable, can realize detecting the multiple parameter of skin comprehensively, fast and accurately.
Utility model content
1, the purpose of this utility model.
The purpose of this utility model is to propose one based on the multispectral skin detection system of LED.Based on the skin properties of multispectral technology, realize as the substance characteristics such as melanin, collagen protein can't harm, differentiates fast.
2, the technical scheme that adopts of this utility model.
Detection probe device is comprised, spectral detection device, system control device, date processing feedback device based on the multispectral skin detection system of LED; Detection probe device is by multiple LED light source, and filter plate and optical fiber form; Light-source head device is made up of the LED of white light LEDs and multiple different peak wavelengths excited for fluorescence spectrum, and wave-length coverage can cover 295-420nm; Fiber device is large core fiber; Spectral detection device is made up of miniature spectrometer or the combined system that is integrated with bandpass filter and photo-detector; System control device is made up of microprocessor and Drive and Control Circuit; Date processing feedback device comprises microprocessor and display screen; The spectral signal of record is carried out analyzing and processing by microprocessor, and spectral signal and analysis result is fed back on display screen in real time.
Further in specific embodiment, the LED of the different peak wavelength of described detection probe device selects the LED of peak wavelength within the scope of 375-420nm to be used for fluorescence excitation.
Further in specific embodiment, described detection probe device filter plate device selects the long pass filter sheet of filtering excitation source high light.
3, the beneficial effects of the utility model.
(1) this utility model detects property material in skin (collagen protein) fast and effectively based on many LED light spectrums;
(2) detection system that proposes of this utility model is cheap, portable, small-sized.
Accompanying drawing explanation
Fig. 1 is based on multispectral skin detection system structure chart.
Fig. 2 is the different skin fairness testing result based on white light LEDs and 380nm fluorescence excitation
1-skin, 2-detection probe, 3-light source, 4-filter plate, 5-large core fiber, 6-Drive and Control Circuit, 7-microprocessor, 8-display screen, 9-spectrum monitor.
Detailed description of the invention
In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present utility model and beneficial effect, applicant will elaborate below by way of example, but not all the restriction to this utility model scheme to the description of embodiment, any according to being only pro forma but not substantial equivalent transformation and all should being considered as the technical solution of the utility model category done by this utility model design.
Embodiment
As shown in Figure 1, when carrying out the detection of skin samples, detection probe 2 is placed on tested skin 1, microprocessor 7 controls the switching of excitation source 3, break-make and intensity by Drive and Control Circuit 6 one aspect, controls spectrogrph 9 on the other hand and records the optical signal that the mating plate after filtration 4 that inspired by sample and optical fiber 5 transmits.Toggle lights 3 records multiple different reflection or fluorescence data according to demand, these spectroscopic datas are through the spectrum of microprocessor 7 pretreatment representatively this dermatological specimens, afterwards by the model that the input of this sample spectrum has been set up, after being analyzed by microprocessor 7, testing result is shown on display screen 8.
Detection probe device described in the utility model is by multiple LED light source, and filter plate and optical fiber form.Detection probe can be used as the external device of whole detection system.Light supply apparatus is made up of the LED of white light LEDs and multiple different peak wavelengths excited for fluorescence spectrum, and wave-length coverage can cover 295-420nm.Consider that ultraviolet is to the injury of skin, the general LED of peak wavelength within the scope of 375-420nm that select is used for fluorescence excitation.Filter plate device selects the long pass filter sheet of filtering excitation source high light.Fiber device can select the large core fiber being more conducive to spectroscopic acquisition.
Spectral detection device described in the utility model is made up of miniature spectrometer or the combined system that is integrated with bandpass filter and photo-detector.The former can adopt the miniature spectrometer of marine optics to obtain continuous print spectral signal, and the latter selects band pass filter and photo-detector to obtain the light intensity signal of several characteristic wave bands, is also discrete spectrum signal.
System control device described in the utility model is made up of microprocessing systems and Drive and Control Circuit.Microprocessing systems can be the mobile phone of single-chip microcomputer, computer or wireless connections, controls spectroscopic acquisition process, and controls break-make and the detected intensity of light source by Drive and Control Circuit device.
Date processing feedback device described in the utility model comprises microprocessor and display screen.The spectral signal of record is carried out analyzing and processing by microprocessor, and spectral signal and analysis result is fed back on display screen in real time.
Based on multispectral skin detecting method, carry out in accordance with the following steps:
(1) spectra collection: detection probe is placed in the skin site needing detection, the position of the upper and lower 3cm of general selection arm ancon or face skin, light specific LED in turn according to detection demand, gather the fluorescence spectrum in 340nm-1000nm wave-length coverage or visible near-infrared reflectance spectrum.Data acquisition is carried out to multiple dermatological specimens of Different age group, different characteristic.
(2) Pretreated spectra: the fluorescence spectrum collected or reflectance spectrum are normalized selectively, smoothing denoising, multiplicative scatter correction process.
(3) skin properties parametric measurement: the fairness adopting the CR10 color difference meter of Japanese Minolta company to carry out multiple dermatological specimens detects, and adopts the skinanalysis apparatus CutometerdualMPA580 of German CK company to carry out moisture of skin and the isoparametric detection of elasticity.
(4) evaluate and test model to set up: based on multivariate calibration methods, as principal component regression (PCR), PLS (PLSR), the method for neutral net, set up skin multispectral with whitening skin degree, moisture, the isoparametric check and evaluation model of elasticity.Wherein the thinking of principal component analysis carries out dimension-reduction treatment to dependent variable and independent variable respectively, extracts the pivot of some, set up regression model.And partial least square method had both considered the information maximization of dependent variable and independent variable when extracting pivot, considered again the dependency of pivot between the two.It is the prefered method setting up linear model.Neural net method then can be adopted to carry out Accurate Model for nonlinear model.
(5) skin properties detects: for new skin to be detected, collect multiple spectrum and carry out pretreatment, after treated device analysis, every characterisitic parameter of skin is outputted to display screen display.
Experiment: the detection of whitening skin degree
Dermatological specimens: invite 39 person-times and carry out skin test, everyone upper and lower 3cm place inside elbow records 3 groups of spectroscopic datas respectively.
(1) multispectral data of dermatological specimens is gathered.
After everyone sits quietly one minute, in elbow, skin detection probe is placed at side-lower 3cm place, and start test, microprocessor automatically control 380nmLED light source is opened, tested skin produces fluorescence signal under this light source activation, and signal is collected by spectrogrph after the long pass filter of 400nm; Light source is switched to white light LEDs by microprocessor again, and collects reflectance spectrum signal.So repeatedly record three groups of spectrum data gatherings.Change 3cm place above measuring position to elbow again, gather three groups of spectroscopic datas in an identical manner.In addition, when with black aluminium block sample, a background signal is measured.
(2) whitening skin degree detects.
After having recorded skin spectrum data, use the CR10 color difference meter of Minolta company immediately, measure and record tested skin and standard black colo(u)r atlas value of chromatism dE, dl, da, db.Wherein dl value larger expression skin is whiter.
(3) spectroscopic data process
After the spectral signal subtracting background noise signal after each combination of collecting, the spectroscopic data obtained is normalized, smoothing processing, so obtains 234 spectrum of 78 dermatological specimens.For each sample, record the averaged spectrum of spectrum for 3 times in order to represent this skin.
(4) data analysis and model are set up.
The spectroscopic data of gained extracts after effective pivot through principal component analysis, by the regression relation between the method establishment skin spectrum information of linear discriminant analysis and whitening skin degree (value of chromatism dl).Also this evaluation and test model of method establishment of PLS can directly be adopted.
(5) modelling verification.
Leaving-one method is adopted to assess Correctness of model.Fig. 2 is the fairness evaluation result of 78 dermatological specimens, and dl value larger expression skin is whiter.Based on spectrographic method assessed value and true between error minimum, error mean square root RMSEV is only 1.54, demonstrates the reasonability of the method in whitening skin degree detects and feasibility.
Claims (4)
1. based on a multispectral skin detection system, it is characterized in that comprising: detection probe device, spectral detection device, system control device, date processing feedback device; Detection probe device is by multiple LED light source, and filter plate and optical fiber form; Light-source head device is made up of the LED of white light LEDs and multiple different peak wavelengths excited for fluorescence spectrum, and wave-length coverage can cover 295-420nm; Fiber device is large core fiber; Spectral detection device is made up of miniature spectrometer or the combined system that is integrated with bandpass filter and photo-detector; System control device is made up of microprocessor and Drive and Control Circuit; Date processing feedback device comprises microprocessor and display screen; The spectral signal of record is carried out analyzing and processing by microprocessor, and spectral signal and analysis result is fed back on display screen in real time.
2. according to claim 1 based on multispectral skin detection system, it is characterized in that comprising: the LED of the different peak wavelength of described detection probe device selects the LED of peak wavelength within the scope of 375-420nm to be used for fluorescence excitation.
3. according to claim 1 based on multispectral skin detection system, it is characterized in that comprising: described detection probe device filter plate device selects the long pass filter sheet of filtering excitation source high light.
4. according to claim 1 based on multispectral skin detection system, it is characterized in that comprising: described microprocessor is single-chip microcomputer, computer or mobile phone.
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| CN201521002033.6U CN205215187U (en) | 2015-12-07 | 2015-12-07 | Skin detecting system based on it is multispectral |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105380609A (en) * | 2015-12-07 | 2016-03-09 | 江苏鼎云信息科技有限公司 | Multi-spectrum based skin detection method and system |
| CN107997771A (en) * | 2017-11-29 | 2018-05-08 | 福建农林大学 | A kind of multi-wavelength LED anxiety detection device and feedback method |
| CN114305336A (en) * | 2021-12-28 | 2022-04-12 | 深圳市比特原子科技有限公司 | Multi-spectral fusion percutaneous health index rapid detection device and method |
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2015
- 2015-12-07 CN CN201521002033.6U patent/CN205215187U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105380609A (en) * | 2015-12-07 | 2016-03-09 | 江苏鼎云信息科技有限公司 | Multi-spectrum based skin detection method and system |
| CN107997771A (en) * | 2017-11-29 | 2018-05-08 | 福建农林大学 | A kind of multi-wavelength LED anxiety detection device and feedback method |
| CN114305336A (en) * | 2021-12-28 | 2022-04-12 | 深圳市比特原子科技有限公司 | Multi-spectral fusion percutaneous health index rapid detection device and method |
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