CN106996916A - A kind of material discrimination method - Google Patents
A kind of material discrimination method Download PDFInfo
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- CN106996916A CN106996916A CN201610479647.6A CN201610479647A CN106996916A CN 106996916 A CN106996916 A CN 106996916A CN 201610479647 A CN201610479647 A CN 201610479647A CN 106996916 A CN106996916 A CN 106996916A
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- authenticated
- light
- contrast
- known substance
- multispectral
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The invention belongs to optic analytical instrument field there is provided a kind of material discrimination method, this method includes：The multispectral light source selection information control inputted according to user opens corresponding spectroscopic light source irradiation and is authenticated material；The picture signal that the light irradiation that sends of multispectral light source is authenticated material and produced is received, and described image signal is handled substance spectra image, total light radiant flux or irradiance distribution is authenticated with acquisition；The material that is authenticated is contrasted with the contrast of known substance progress spectrum picture, the contrast of total light radiant flux or irradiance distribution, and display comparison result.The present invention carries out material discriminating using the spectrographic detection characteristic of material, and discrimination method is simple, it is possible to achieve scene and popular material differentiate.Using the spectrographic detection characteristic material identifier that designs of the present invention because its convenient use, price economy, hand-held, scene and it is popular the characteristics of, can be widely used for the discriminating of material, it is convenient and practical.
Description
Technical field
Differentiate field the invention belongs to optical analysis, and in particular to a kind of material discrimination method, more particularly to
One kind for material or commodity (such as food, medicine and other commodity etc.) differentiate with analysis, with hand-held, scene,
It is popular, easy to use and price economy to carry out material mirror method for distinguishing using spectrographic detection characteristic.
Background technology
At present, the discriminating (differentiating such as food and medicine) of material or commodity, including material or commodity true and false or consistent
Property is the one big problem that the world today faces.Although there is the instruments such as mass spectrograph, chromatograph and spectrometer can use in the market
In the accurate discriminating of material, but these instruments or prohibitively expensive or excessively huge or require very professional manipulation, and it is unfavorable
In realizing that hand-held, scene and popular material or commodity differentiate.If a kind of economy, hand-held, scene can be invented
Differentiate instrument with popular material or commodity so that everybody may all participate in the discriminating of material or commodity in daily life,
Just the strength that can make use of the general public simultaneously coordinates relevant functional departments of government that fake products is reduced to very low degree.
In summary, prior art there will naturally be inconvenience and defect in actual use, and it is therefore necessary to improved.
The content of the invention
For above-mentioned defect, the present invention proposes a kind of material discrimination method, and it utilizes the spectrographic detection characteristic of material
Material discriminating is carried out, discrimination method is simple, it is possible to achieve scene and popular material differentiate.
The present invention provides a kind of material discrimination method, including：
The multispectral light source selection information control inputted according to user opens corresponding spectroscopic light source irradiation and is authenticated material；
Receive be authenticated material generation picture signal, and described image signal is handled with acquisition be authenticated material
Spectrum picture, total light radiant flux and irradiance distribution；
Material and the contrast of known substance progress spectrum picture, the contrast of total light radiant flux and irradiation level point are authenticated by described
Cloth is contrasted, and display comparison result.
The present invention by controlling multispectral light source irradiation to be authenticated material, and gather by multispectral light source send it is multispectral
Light and the optical signal for being authenticated matter interaction and producing, obtain the spectrographic detection characteristic for being authenticated material；According to predefined
Criterion will be authenticated material to the spectrographic detection characteristics of these multispectral light and spectrum of the known substance to these multispectral light
Detection feature is contrasted to produce material identification result.It carries out material discriminating using the spectrographic detection characteristic of material, differentiates
Method is simple, it is possible to achieve scene and popular material differentiate.
PC or the embedded computer system control of the present invention is authenticated with the irradiation of optical transmitting system multispectral light source
Material, the multispectral light sent with optical transmitting system multispectral light source and the light quilt for being authenticated matter interaction and producing
Imaging detector imaging with imaging optical system, using optical filter to choose multispectral light with being authenticated material phase interaction
With and produce light in specific wavelength photoimaging, in order to preferably differentiate material.The present invention is differentiated using predefined simultaneously
Criterion, calls installation database contrast known substance just can differentiate material, including thing to the imaging features of these multispectral light
The true and false or uniformity of matter.Discrimination method is simple, it is possible to achieve scene and popular material differentiate.
Preferably, the present invention is authenticated material using multispectral light irradiation because be authenticated material surface physics spy it is seized with terror-
Color, finish, texture and contained substance composition etc. are different and reflect different to the light of different spectrum, utilize imaging to visit
Device is surveyed by the reflection photoimaging modulated, calls installation database (to make the spectrographic detection characteristic of the conventional known substance in part
Database for differentiate material reference, including composite color image, total light radiant flux and irradiance distribution) using our define
Discriminatory criterion contrast known substance the imaging features of these multispectral light just can be differentiated with material, including material the true and false or
Uniformity.
Preferably, the present invention using multispectral light irradiation it is transparent or it is partially transparent be authenticated material, be authenticated material pair
Different spectral absorption are different in these irradiation lights, using imaging detector by the transmission photoimaging, call installation data base manipulation
The transmission photoimaging characteristics for the discriminatory criterion contrast known substance that we define can differentiate material, including the true and false of material or one
Cause property.
Preferably, the present invention is authenticated material using multispectral light irradiation, and being authenticated material may be by these irradiation light
Excite and launch fluorescence, will excite fluorescence using imaging detector or excite the mixed light of fluorescence and reflected light or transmitted light into
Picture, call installation data base manipulation we define discriminatory criterion contrast known substance it is such excite fluorescence or excite fluorescence and
The mixing photoimaging characteristics of reflected light or transmitted light, which are done, intuitively to be contrasted to differentiate material, includes the true and false or uniformity of material.
Preferably, the present invention using multispectral light irradiation be authenticated material and occur such as Raman scattering it is non-linear dissipate
Penetrate, with the imaging detector with imaging optical system by these nonlinear scattering light, calling installation data base manipulation, we determine
These nonlinear scattering photoimaging characteristics of the multispectral light of the discriminatory criterion contrast known substance of justice can also differentiate material, wrap
Include the true and false or uniformity of material.
Preferably, the present invention also proposes to utilize the multispectral photoimaging of light radiant flux, spectrum of multispectral photoimaging
Irradiance distribution is used as the physical criteria for differentiating material.
The overall technology effect of the present invention embodies in the following areas.
(1) in the present invention, be authenticated material using multispectral light irradiation because be authenticated material surface physics spy it is seized with terror-
Color, finish, texture and contained substance composition etc. are different and reflect different to the light of different spectrum, utilize imaging to visit
Device is surveyed by the reflection photoimaging, our discriminatory criterion contrast known substances for defining of installation data base manipulation are called to these light more
The imaging features of spectrum light just can differentiate material, include the true and false or uniformity of material.
(2) in the present invention, using multispectral light irradiation it is transparent or it is partially transparent be authenticated material, be authenticated material pair
Different spectral absorption are different in these irradiation lights, using imaging detector by the transmission photoimaging, call installation data base manipulation
The transmission photoimaging characteristics for the discriminatory criterion contrast known substance that we define can differentiate material, including the true and false of material or one
Cause property.
(3) in the present invention, using these multispectral light irradiation materials, being authenticated material may be swashed by these irradiation lights
Send out and fluoresce, using imaging detector by the mixed light for exciting fluorescence or exciting fluorescence and reflected light or transmitted light of material into
Picture, calls exciting fluorescence or exciting fluorescence and reflection for our discriminatory criterion contrast known substances for defining of installation data base manipulation
Light or the mixing photoimaging characteristics of transmitted light can also differentiate material, include the true and false or uniformity of material.
(4) it is authenticated material using multispectral light irradiation and occurs such as Raman scattering nonlinear scattering, with imaging
The imaging detector of optical system is mixed by such nonlinear scattering light or such nonlinear scattering light and reflected light or transmitted light
Combine light into picture, call installation data base manipulation we define discriminatory criterion contrast known substance such nonlinear scattering light or
Such nonlinear scattering light and the mixing photoimaging characteristics of reflected light or transmitted light can also differentiate material, include the true and false of material
Or uniformity.
(5) in the present invention, the thing that the light radiant flux of imaging detector imaging differentiates material as comparing can also be used
Manage criterion.
(6) in the present invention, the irradiance distribution being also imaged using imaging detector differentiates the thing of material as comparing
Criterion is managed, will be imaged and be divided into grid array, calculate distribution of the grid number with irradiation level.Compare this distribution for being authenticated material
It is distributed with this of known substance to differentiate material.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of material identifier of the present invention；
Fig. 2 is the schematic diagram of control system in an embodiment of the present invention；
Fig. 3 is the schematic diagram of software in an embodiment of the present invention；
Fig. 4 is software flow pattern in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of material discrimination method of the invention；
Fig. 6 is known substance imaging grid schematic diagram in the present invention；
Fig. 7 is that material imaging grid schematic diagram is authenticated in the present invention；
Fig. 8 is that known substance is imaged grid number with irradiance distribution schematic diagram in the present invention；
Fig. 9 is to be authenticated material in the present invention to be imaged grid number with irradiance distribution schematic diagram；
Figure 10 is using the reflected light of multispectral light to differentiate material schematic diagram in the present invention；
Figure 11 is using the transmitted light of multispectral light to differentiate material schematic diagram in the present invention；
Figure 12 is using the surface excitation fluorescence of multispectral light to differentiate material schematic diagram in the present invention；
Figure 13 is using the transmission of multispectral light to excite fluorescence to differentiate material schematic diagram in the present invention；
Figure 14 is a kind of Organization Chart of Internet of Things of the invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present invention general principle be：Pass through PC (personal computer, personal computer) or embedded computer
System control is authenticated material, multispectral light and quilt that multispectral light source is sent with the irradiation of optical transmitting system multispectral light source
Differentiate matter interaction and the light that produces is imaged by imaging detector, using optical filter to choose multispectral light with being authenticated
Matter interaction and specific wavelength photoimaging in the light that produces, in order to preferably differentiate material；The present invention is using pre- simultaneously
The discriminatory criterion of definition, calls installation database contrast known substance just can differentiate thing to the imaging features of these multispectral light
Matter, includes the true and false or uniformity of material.Discrimination method is simple, it is possible to achieve scene and popular material differentiate.
Embodiment one
As shown in figure 1, a kind of material identifier 100 of the invention, including PC or embedded computer system 11, with transmitting
Multispectral light source 12, optical filter 13, the imaging detector 14 with imaging optical system and the control system 15 of optical system.
In Fig. 1, in addition to material 16 is authenticated, can is solid, liquids and gases；17 be the multispectral of multispectral light source generation
Light, 18 be multispectral light and to be authenticated the light that material 16 interacts and produced.The control of wherein material identifier 100 is to utilize
What the software in PC or embedded computer system 11 was realized by control system 15.
In material identifier 100, multispectral light source 12 combined by a variety of LED or laser diode (such as 365nm,
405nm, 650nm, 785nm and 808nm LED or white light LEDs or laser diode etc.), and LED in multispectral light source 12 or
Laser diode is the light source of separation or combines the light source for Single-end output by combined optical system.Material identifier 100 is adopted
With unilateral or polygon light source illuminate, i.e., multispectral light source 12 be located at imaging optical system imaging detector 14 one side or
It is polygon.Imaging detector 14 is black and white, can be CCD, COMS or other image device.
In addition, material identifier 100 may also include for material identifier 100 and the extraneous communication interface communicated,
The communication interface can be wired network interface, WIFI interface and handset port etc., for connect Internet of Things or with strange land user
Communication information.
PC or embedded computer system 11 pass through control system 15 and soft in PC or embedded computer system
Part realizes that complete machine control, including the control irradiation of multispectral light source 12 are authenticated material 16, to obtain the imaging of different spectrum, more light
LED or laser diode in spectrum light source 12 can individually or partly or entirely be unlocked, and multispectral light 17 is with being authenticated material
16 light for interacting and producing are by the detection imaging of imaging detector 14 with imaging optical system.Using optical filter 13 so as to
Choose multispectral light and be authenticated specific wavelength photoimaging in the light 18 that material 16 interacts and produced, in order to preferably reflect
Other material.Call imaging of the following predefined discriminatory criterion contrast known substances of installation data base manipulation to these multispectral light
Feature just can differentiate material, include the true and false or uniformity of material.Material identifier 100 can also include being used to reduce environment
The sample shade that light is disturbed imaging detector.
In the present invention, the control of material identifier 100 multispectral light source 12 produces multispectral light irradiation and is authenticated material 16,
The irradiation of 13 pairs of optical filter is authenticated reflected light produced by material 16, transmitted light, the fluorescence for exciting and producing, nonlinear scattering light
Filtered to choose the light of specific wavelength, or to reflected light, transmitted light, the fluorescence for exciting and producing, nonlinear scattering light
In any mixed light filtered to choose the light of specific wavelength；The light of 14 pairs of selection specific wavelengths of imaging detector is imaged
Processing, material identifier calls installation database root to contrast known substance to these multispectral light according to predefined discriminatory criterion
Imaging features are to differentiate material.
In the present invention, material identifier 100 can be and the mobile phone type of cellular phone combination, hand-held material identifier, just
Take formula material identifier or desk-top material identifier；Mobile phone type material identifier include mobile phone, multispectral light source, optical filter, into
As detector and mobile phone A PP softwares, the wherein embedded computer system and embedded screen of mobile phone is used for material identifier
Control and display；Hand-held material identifier includes the embedded computer system and embedded screen for controlling；It is portable
Material identifier or desk-top material identifier include the personal computer and computer display for controlling.
As shown in Fig. 2 the control system 15 of material identifier 100 of the present invention includes：Image capture module 21, signal transacting
Module 22, data cache module 23, data transfer module 24, display module 25, multispectral light source control module 26, communication module
27 and power supply 28 etc..
Image capture module 21 include with imaging optical system imaging detector and its amplifying circuit, for gather by
Multispectral light and be authenticated the image that material 16 interacts and produced that multispectral light source 12 is sent, acquisition is authenticated material 16
Spectrographic detection characteristic.Spectrographic detection characteristic includes spectrum picture, total light radiant flux and irradiance distribution etc..
Signal processing module 22 is used for acquired image electronic signal process.
Data cache module 23 is used to store view data after signal processing.
Data transfer module 24 is used to send the view data of storage to PC or embedded computer system and receive PC
Or the instruction of embedded computer system.
Display module 25 is used to show operational order, image and identification result etc., for the corresponding display of mobile phone type by hand
Machine display screen is completed, display is completed, for portable and desk-top corresponding display hand-held by embedded small display accordingly
Completed by PC display screens.
Multispectral light source control module 26 is used for the switch for controlling multispectral light source so that multispectral light source irradiation is authenticated
Material 16, can with the LED or laser diode in optical transmitting system multispectral light source 12 to obtain the imaging of different spectrum
With independent or be partly or entirely unlocked.
Communication module 27 includes wired network interface, WIFI interface and handset port etc., for connect Internet of Things or with it is different
Ground user communication exchange of information.
Power supply 28 is used to provide electric power to the system of the present invention.Receiving PC or embedded computer system 11 instruction
Afterwards, image capture module 21 obtains original image signal from the imaging detector 14 with imaging optical system, through its amplification electricity
After the picture signal is amplified on road, after signal processing module 22 is handled the picture signal, data cache module 23 is delivered to
Storage, data transfer module 24, which sends the picture signal to PC or embedded computer system 11, is used for software processing.
Fig. 3 is the schematic diagram of the software in a kind of embodiment of material identifier of the present invention, and the software is mounted in PC or embedded
In computer system 11.The software of the present invention mainly includes：Operational control module 301, light source control module 302, data receiver
Module 303, data processing module 304, data memory module 305, composite color image generation module 306, contrast module 307,
Display module 308 (including image is shown and material identification result) etc., installation database module 309 are (by the conventional known substance in part
Matter spectrographic detection characteristic makes database to differentiate the reference of material, including composite color image, total light radiant flux and irradiation
Degree distribution), communication module 310 (including the function such as WIFI transmission, wiring logging-on function and mobile phone).
The system operatio that operational control module 301 is used for material identifier 100 of the present invention is controlled.
Light source control module 302 is used to control the switch with optical transmitting system multispectral light source, and will be opened
Optical source wavelength notifies composite color image generation module 306, material contrast module 307 and display module 308 are used for composite coloured
Generation, contrast and the display of image, LED or laser diode therein can individually or partly or entirely be unlocked.
The picture signal that data reception module 303 is used to gather in circuit sends PC or embedded computer system to, and
Receive the instruction of PC or embedded computer system.
Data processing module 304 is used to carrying out filtering, noise reduction or the signal transacting such as smooth.
Data memory module 305 and for the data after storage processing and to composite color image generation module 306 contrast
The output data of module 307.
Composite color image generation module 306 is used to be that the spectrum picture addition color for being authenticated material has just to generate
The composite color image of the contrast characteristic differentiated in human eye figure.
Contrast module 307 be used for call installation database and according to we define criterion carry out be authenticated material with it is known
The spectrographic detection Character Comparison of material, including descriptive geometry shape contrast, composite-color-graphics contrast, light radiant flux contrast and
Irradiance distribution contrast etc..Contrast module 307 is additionally operable to carry out the coloured image that meets of composite color image and known substance
Contrast to produce material identification result.
Display module 308 is used to show operational order, composite color image (including showing common black white image) and material
Identification result etc..
Database module 309 of installing is used for the installation database for managing installation database and user's addition.
Communication module 310 is used to control to include the communication interfaces such as WIFI transmission, wiring logging-on function and mobile phone to connect Internet of Things
Or with strange land user communication exchange of information, such as identification result and installation database.
Software actually in material identifier 100 equally relies on control system 15, therefore the partial function of the software
Essentially coincided with control system 15.
In the present invention, image capture module 21 gathers the multispectral light sent by multispectral light source with being authenticated material phase
Interaction and the image produced, obtain the spectrographic detection characteristic for being authenticated material.Contrast module 307, for according to predefined
Criterion will be authenticated the spectrographic detection characteristic of material and the spectrographic detection characteristic of known substance is contrasted to produce material discriminating
As a result.Composite color image generation module 306 is that the spectrum picture addition color for being authenticated material is easy to human eye to generate to have
The composite color image for the contrast characteristic that figure differentiates.Contrast module 307 then can be by the spectrum picture for being authenticated material, total light spoke
Flux and irradiance distribution is penetrated to be contrasted with known substance spectrum picture, total light radiant flux and irradiance distribution.Show mould
Block 308 shows the spectrographic detection characteristic and material identification result for being authenticated material.
Fig. 4 is software flow pattern in the software in a kind of embodiment of material identifier of the present invention, including：401 be that GUI is manipulated
Interface, 402 be to judge that multispectral light source is opened in selection, and 403 be to judge that a LED or laser diode are opened in selection, and 404 are out one
LED or laser, 405 be to judge that whole LED or laser diode are opened in selection, and 406 are out whole LED or laser, and 407 are out
Part LED or laser, 408 be to judge that selection is the visible ray of known wavelength, and 409 be to judge that selection is that the non-of known wavelength can
See light, 410 be to receive view data, 411 be processing view data, and 412 be view data storage, and 413 be to judge that selection is carried out
Image comparison, 414 be to judge that selection produces coloured image, and 415 be addition RGB color image, and 416 be that addition non-genuine RGB is color
Color image, 417 be addition non-genuine and the RGB color image corresponding with gray value, and 418 be total light radiant flux contrast, 419
It is irradiance distribution contrast, 420 be data buffer storage, and 421 be display image and comparing result, and 422 be database manipulation, and 423 are
Communication operation.
Open invention software host computer and show that GUI manipulates interface 401, after a series of setting is completed, hereafter judge choosing
Select out the true and false of multispectral light source 402, if selection open returned to if multispectral light source 402 is judged as vacation GUI manipulation interface 401 enter
Row next step is operated；Opened if selection and judge that a LED or laser diode are opened in selection if multispectral light source 402 is judged as very
403 it is true and false, carry out out a LED or laser diode if a LED is opened in selection or laser diode 403 is judged as very
404 operation, judges that whole LED or laser two are opened in selection if a LED is opened in selection or laser diode 403 is judged as vacation
Pole pipe 405 it is true and false, carry out out whole LED or laser two if whole LED are opened in selection or laser diode 405 is judged as very
The operation of pole pipe 406, carries out driving part LED or laser if whole LED are opened in selection or laser diode 405 is judged as vacation
407 operation；
When the relevant operation of multispectral light source is opened in completion, then judge that LED is opened in selection or laser is visible for known wavelength
Light 408 it is true and false, it is that RGB coloured silks are added if known wavelength visible ray 408 is judged as very to drive LED or laser if selection
The operation of color image 415, it is to judge selection if known wavelength visible ray 408 is judged as vacation to open LED or laser if selection
Be known wavelength non-visible light 409 it is true and false, if selection be known wavelength non-visible light 409 be judged as very if added
Plus the operation of non-genuine RGB color image 416, added if the non-visible light 409 that selection is known wavelength is judged as vacation
Plus the operation of non-genuine and the RGB color image 417 corresponding with gray value；It is added RGB color image 415 to operate, adds
Plus non-genuine RGB color image 416 operates and added non-genuine and the RGB color image 417 operation institute corresponding with gray value
The view data being related to is obtained by data reception module 303.
Meanwhile, when the relevant operation in source is opened the light in completion, then carry out receiving the operation of view data 410, and handled
The operation of view data 411, then carry out the operation of view data storage 412.
Hereafter judge the true and false of selection image comparison 413, selection production is judged if selection image comparison 413 is judged as very
Give birth to the true and false of coloured image 414.
Total light radiant flux contrast 418 is carried out if selection image comparison 413 is judged as vacation to operate, then carries out irradiation level
Profiles versus 419 operates, and total light radiant flux contrasts 418 operating results and irradiance distribution contrasts 419 operating results and passes through number
Buffer area is stored according to the operation of caching 420, then is shown through display image and the operation of identification result 421 and to be used as user and differentiate
The foundation of material.
If it is determined that it is true that selection, which produces coloured image 414, then it is actuated for addition RGB color image 415 or adds non-
The operation of true RGB color image 416 or addition non-genuine and the RGB color image 417 corresponding with gray value, to generate just
The composite color image for carrying out image authentication in human eye for user directly differentiates that material is used, if selection generation coloured image
414 be false, then will be stored via view data the stored black white image data of 412 operations carry out data buffer storage 420 operate and
Buffer area is stored in, display black white image directly differentiates that material is used for user.
In addition, carrying out database 422 and operating image is supplied for managing the installation database of installation database and user's addition
Differentiate that contrast is used；Communication 423 is carried out to operate for controlling to include the communication interfaces such as WIFI transmission, wiring logging-on function and mobile phone with even
Connect Internet of Things and strange land user's exchange of information, such as identification result and installation database.
Fig. 5 is that material identifier of the present invention carries out material mirror method for distinguishing, including：
Step S501, the multispectral light source selection information control inputted according to user opens corresponding spectroscopic light source and irradiates quilt
Differentiate material.Wherein, multispectral light source selection information includes selection and opens a LED or laser, selection open part LED or
Laser, and open whole LED or laser.
Step S502, the light irradiation that reception multispectral light source is sent is authenticated the picture signal produced by material, and to figure
As signal is handled substance spectra image, total light radiant flux and irradiance distribution are authenticated to obtain.Picture signal is entered
Row processing, which obtains the step of being authenticated the spectrographic detection characteristic of material, to be included：Picture signal is filtered, hot-tempered or smooth place is dropped
Reason.It is authenticated substance spectra image and coloured silk that is composite coloured and generating is added including black and white spectrum picture and to black and white spectrum picture
Color spectrum detection image.Picture signal is added composite coloured and generate chromatic spectrum detection image and specifically include：According to light more
Spectrum light source selection information judges selected light source for the visible ray of known wavelength, the non-visible light of known wavelength or unknown ripple
Long non-visible light；Image for the known wavelength visible ray formation of acquisition adds RGB color, is the non-visible light of known wavelength
The image addition non-genuine of formation is colored, be image addition non-genuine produced by the light of unknown wavelength it is colored and with its gray value
Corresponding RGB color.
Step S503, will be authenticated material and carries out spectrum picture contrast, the contrast of total light radiant flux and spoke with known substance
Illumination Distribution is contrasted, and display comparison result.
Preferably, the material discrimination method also includes：To be authenticated material and known substance carry out spectrum picture contrast,
Total light radiant flux contrast and irradiance distribution contrast, including one of those, two or all contrast to differentiate material, if
The implementing result for wherein having a contrast is that to be authenticated material different from known substance, then judgement is authenticated material and known substance
It is different.
Preferably, step S502 includes：To the composite coloured generation chromatic spectrum detection image of picture signal addition；Step
S503 includes：The chromatic spectrum detection image of the chromatic spectrum detection image for being authenticated material of generation and known substance is carried out
Contrast.
Preferably, step S503 also includes：Substance spectra image, total light radiant flux contrast operation result will be authenticated
Buffer area is stored in by data buffer storage operation with irradiance distribution contrast operation result, then grasped through display image and identification result
It is shown and is used as the foundation that user differentiates material.
Composite color image generation module 306 can be according to following rule when adding color to spectrum picture：To acquisition
The image of known wavelength visible ray formation, addition RGB color is beneficial to the contrast characteristic that eye image differentiates to increase；For acquisition
The image of the non-visible light formation of known wavelength, addition non-genuine is colored to be beneficial to the contrast characteristic that human eye figure differentiates to increase,
The wavelength is marked as non-visible light using word or symbol simultaneously；For the image produced by the light of the unknown wavelength of acquisition, add non-
True color and the RGB color corresponding with its gray scale are beneficial to the contrast characteristic that human eye figure differentiates to increase.
The present invention uses discriminatory criterion specific as follows when carrying out material discriminating：
First, composite color image is contrasted
Can be by independent or part or all of with the LED or laser diode in optical transmitting system multispectral light source 12
(the different wavelength X of correspondence) is opened, to obtain different imagings.If having obvious difference for the imaging of a certain wavelength X,
It can determine whether to be authenticated material different from known substance.In order to improve eye image distinguishing ability, the present invention is proposed using compound
Color graphics contrast criterion differentiates material.Composite color image contrast criterion differentiates to be made up of following method, i.e., when using black and white
During imaging detector with imaging optical system：
1st, contrast module 307 will be authenticated material to the imaging of multispectral light and known substance to the imaging of multispectral light simultaneously
Row contrast, material is intuitively differentiated for human eye, and this is the contrast for showing common black white image.That is, contrast module 307 is also used
Multispectral light is passed through with known substance in the black white image that material obtains to multispectral light through black and white imaging detector will be authenticated
The black white image side-by-side comparison that black and white imaging detector is obtained, imaging detector 14 is the black and white imaging with imaging optical system
Detector.
2nd, produce known wavelength with being authenticated matter interaction for multispectral light and (controlled by light source control module 302
System) visible images, add corresponding RGB color by composite color image generation module 306 and (produce mould by composite color image
Block 306 is controlled) it is beneficial to the contrast characteristic that human eye figure differentiates to increase, intuitively differentiate material for human eye.
3rd, for multispectral light and the non-visible light (such as ultraviolet light and infrared light) for being authenticated matter interaction and producing
And the image produced by known wavelength (being controlled as light source control module 302), add non-by composite color image generation module 306
True color is beneficial to the contrast characteristic that human eye figure differentiates to increase, while again using word or the symbol description wavelength to be non-visible
Light.As added non-genuine with wavelength gradual change purple with display image, i.e. long wave ultraviolet for the image software produced by ultraviolet light
Light image adds lavender, short wavelength UV light image to deepen purple；Add non-genuine with ripple for infrared produced image software
Long gradual change is red to add pale red, short-wave infrared light image to deepen red with display image, i.e. LONG WAVE INFRARED light image；For human eye
Intuitively differentiate material.
4th, for the image produced by multispectral light and the unknown wavelength for being authenticated matter interaction and producing, by being combined
The addition non-genuine of coloured image generation module 306 is colored and the RGB color corresponding with its gray scale is beneficial to human eye figure to increase
The contrast characteristic of discriminating, such as with gray scale from weak to strong, can add its corresponding image from black, purple, red to white color,
Intuitively differentiate material for human eye.
5th, in the black and white imaging detector with imaging optical system, imaging detector is divided into different small row
Battle array, each small array is made up of as basic probe unit some pixels.Filtered before imaging detector provided with one by different
The small array of piece composition, the size and pixel of optical filter is same or equivalent, and the optical filter covers the spectrum from ultraviolet to infrared, institute
The light of different wavelength is detected with different pixel cell, for multispectral light and be authenticated matter interaction and produce can
See light image (through the light of corresponding visible filter), controlled by composite color image generation module 306 plus its corresponding RGB
It is colored to be beneficial to the contrast characteristic that human eye figure differentiates to increase, intuitively differentiate material for human eye.For multispectral light and quilt
The non-visible light for differentiating matter interaction and producing, such as ultraviolet light and infrared light image (pass through corresponding non-visible light optical filter
Light), controlled by composite color image generation module 306 plus non-genuine it is colored be beneficial to that human eye figure differentiates to increase to bit
Levy, while again using word or the symbol description wavelength as non-visible light；As for the image software produced by ultraviolet light add with
Wavelength gradual change purple adds lavender, short wavelength UV light image to deepen purple with display image, i.e. long wave ultraviolet light image；For red
Image software produced by outer adds adds pale red, shortwave with wavelength gradual change red with display image, i.e. LONG WAVE INFRARED light image
Infrared light image is deepened red；Intuitively differentiate material for human eye.
2nd, total light radiant flux similarity comparison
Contrast module 307 will be authenticated material 16 to the total light radiant flux and known substance produced by multispectral photoimaging
Light radiant flux produced by multispectral photoimaging is contrasted.Specifically, known substance is divided into multispectral photoimaging
NxM grid, as shown in Figure 6.Wherein E (m, n, λ) is the irradiation level for being imaged (m, n) individual grid in grid, and λ is multispectral light
In a certain monochromatic wavelength.It is Φ to total light radiant flux of the imaging grid of multispectral light to calculate known substance0(λ) such as
Under：
Wherein δ S are the areas of (m, n) individual grid.
Equally, it will will also be authenticated material and be divided into MxN grid of quantity identical, such as Fig. 7 to multispectral photoimaging.Wherein
E ' (m, n, λ) is the light irradiance of (m, n) individual grid in the imaging grid, and calculating is authenticated imaging of the material to multispectral light
Total photometric sterance of grid is Φ '0(λ) is as follows,
Then defining similarity is：
When similarity R (λ) is 1, it is similar to known substance that expression is authenticated material；Conversely, similarity R (λ) deviates 1 then table
Show and be authenticated material and known substance dissmilarity, deviate 1 more big more dissimilar.LED or laser diode in light source can be single
Be unlocked solely or partly or entirely (the different wavelength X of correspondence), to obtain different imagings.If, for the phase of a certain wavelength X
Value deviation 1 like degree R (λ) is larger, you can judgement is authenticated material and known substance not seemingly；Otherwise, for all wavelengths λ phase
What it is like degree R (λ) is 1 or close to 1, that is, can determine whether to be authenticated material similar to known substance.User's acceptable similarity
Size rule of thumb defined by user.
3rd, light irradiance distribution similarity comparison
Contrast module 307 is when carrying out the contrast of irradiance distribution, and contrast module 307 will be authenticated the irradiation level point of material
The irradiance distribution of cloth and known substance is contrasted, i.e., known substance is divided into MxN grid to multispectral photoimaging, is calculated
Its grid number is with light irradiance E distribution S (λ, E), such as Fig. 8.Equally, material will be authenticated and MxN is divided into multispectral photoimaging
Individual grid, calculates distribution S'(λ, E of its grid number with light irradiance E), such as Fig. 9.λ is a certain monochromatic optical wave in multispectral light
It is long.Defining both similarities is：
Wherein, μ is to consider known substance imaging grid number with light irradiance E distribution S (λ, E) and be authenticated material imaging
Grid number with light irradiance E distribution S'(λ, E) the contribution weighted of similarity is influenceed differentiate, and the weighting being multiplied by because
Son.Weighted factor, which can for example be defined, is:
When similarity R (λ) is 1, it is similar to known substance that expression is authenticated material；Conversely, similarity R (λ) deviates 1 then table
Show and be authenticated material and known substance dissmilarity, deviate 1 more big more dissimilar.LED or laser diode in light source can be single
Be unlocked solely or partly or entirely (the different wavelength X of correspondence), to obtain different imagings.If, for the phase of a certain wavelength X
Value deviation 1 like degree R (λ) is larger, you can judgement is authenticated material and known substance not seemingly；Otherwise, for all wavelengths λ phase
What it is like degree R (λ) is 1 or close to 1, that is, can determine whether to be authenticated material similar to known substance.User's acceptable similarity
Size rule of thumb defined by user.
User can differentiate material with said one or part or all of criterion.If on the contrary, for the result of a certain criterion
It is negative, you can it is different from known substance that judgement is authenticated material.Namely contrast module 307 be additionally operable to be authenticated material with
Known substance performs spectrum picture contrast, the contrast of total light radiant flux and irradiance distribution contrast；And contrast module 307 is additionally operable to
Perform spectrum picture contrast, total light radiant flux contrast and irradiance distribution contrast in one, two or all contrast with
Differentiate material, if the implementing result for wherein having a contrast is that to be authenticated material different from known substance, judge to be authenticated thing
Matter is different from known substance.
Figure 10 is using the reflected light of multispectral light to differentiate material schematic diagram in the present invention.12 be to carry optical transmitting system
Multispectral light source, 13 be optical filter, and 14 be the imaging detector with imaging optical system, and 16 be to be authenticated material, and 17 be many
Spectral light, 801 be to be authenticated material surface, and 802 be the reflected light of multispectral light.With optical transmitting system multispectral light source 12
The multispectral light 17 sent, which is irradiated to be authenticated after material surface 801, is reflected to form reflected light 802, because being authenticated material table
801 physical features of face-color, finish, texture and contained substance composition etc. are different and the light of different spectrum is reflected
Difference, with the imaging detector 14 with imaging optical system this reflected light 802 can obtain being authenticated material surface 801 into
Picture.Call imaging of the above-mentioned discriminatory criterion that we the define contrast known substance of installation data base manipulation to these multispectral light special
Levying just can differentiate material, include the true and false or uniformity of material.Using optical filter 13 to choose the reflected light of multispectral light
Specific wavelength photoimaging in 802, in order to preferably differentiate material.
Figure 11 is using the transmitted light of multispectral light to differentiate material schematic diagram in the present invention.As shown in figure 11,12 be to carry
Optical transmitting system multispectral light source, 13 be optical filter, and 14 be the imaging detector with imaging optical system, and 16 be to be authenticated
Material, 17 be multispectral light, and 19 be the transmitted light of multispectral light.The light more sent with optical transmitting system multispectral light source 12
Spectrum light 17 is irradiated to the transmitted light 19 for being authenticated and multispectral light being formed after material 16, with the imaging detection with imaging optical system
Device 14, which detects this transmitted light, can obtain being authenticated the imaging of material 16.Call the above-mentioned mirror that we define of installation data base manipulation
Other criterion contrast known substance just can differentiate material to the imaging features of the transmitted light 19 of these multispectral light, including material
The true and false or uniformity.Specific wavelength photoimaging in transmitted light 19 using optical filter 13 to choose multispectral light, in order to more
Differentiate material well.
Figure 12 is using the surface excitation fluorescence of multispectral light to differentiate material schematic diagram in the present invention.As shown in figure 12,12
It is to carry optical transmitting system multispectral light source, 13 be optical filter, and 14 be the imaging detector with imaging optical system, and 16 are
Material is authenticated, 17 be multispectral light, and 101 be to be authenticated material surface, and 102 excite fluorescence or excite fluorescence and reflected light
Mixed light.The multispectral light 17 that multispectral light source 12 is sent is irradiated to be authenticated after material surface 101 and excites generation fluorescence or swash
The mixed light 102 fluoresced with reflected light, with the detection of imaging detector 14 with imaging optical system, this excites fluorescence or swashed
Fluoresce and the mixed light 102 of reflected light can obtain being authenticated the imaging of material surface 101.Call in installation data base manipulation
State the discriminatory criterion contrast known substance of our definition just can differentiate material to the imaging features of these mixed lights 102, including
The true and false or uniformity of material.Using optical filter 13 certain wave in fluorescence and reflected light 102 is excited so as to choose multispectral light
Long photoimaging, in order to preferably differentiate material.
Figure 13 is using the transmission of multispectral light to excite fluorescence to differentiate material schematic diagram in the present invention.As shown in figure 13,12
It is to carry optical transmitting system multispectral light source, 13 be optical filter, and 14 be the imaging detector with imaging optical system, and 16 are
It is authenticated material, 17 be multispectral light, 111 be to excite fluorescence or excite fluorescence and the mixed light of transmitted light.Multispectral light source 12
The multispectral light 17 sent is irradiated to be authenticated after material 16 and excites generation fluorescence or excite fluorescence and the mixed light of transmitted light
111, with the detection of imaging detector 14 with imaging optical system, this excites fluorescence or excites fluorescence and the mixed light of transmitted light
111 can obtain being authenticated the imaging of material 16.Call the above-mentioned discriminatory criterion that we the define contrast of installation data base manipulation
Know that material just can differentiate material to the imaging features of these multispectral light, include the true and false or uniformity of material.Use optical filtering
Piece 13 excites specific wavelength photoimaging in fluorescence and transmitted light 111 so as to choose multispectral light, in order to preferably differentiate thing
Matter.
Material identifier 100 calls database by contrast module and sentenced according to predefined when carrying out material discriminating
According to the spectrographic detection characteristic for being authenticated material and known substance is contrasted to produce material identification result.Including compound coloured silk
Color graphic correlation, light radiant flux contrast and irradiance distribution contrast etc..Material identifier of the present invention uses discriminatory criterion to have
Body is with reference to embodiment two.
Embodiment two
Figure 14, which is that the present invention is a kind of, includes the Internet of Things framework figure of material identifier as shown in Figure 1, material identifier 100
It is considered as internet of things sensors, the Internet of Things differentiated for material is set up based on this, is easy to popular material to differentiate and is used, the thing
Networking framework also includes：
Internet of Things server 141, the communication for the management of material discriminating Internet of Things and with material identifier.
Internet of Things data library module 142, the database for setting up and managing known substance spectrographic detection characteristic, the data
Data in storehouse can differentiate thing by the Internet of Things owner, national relevant functional departments, commodity production business or supplier, material
The user of networking or material identifier provides, to differentiate that Internet of Things and material identifier realize scene and big using material
The material discriminating of crowdization and exchanging for relevant information.
Internet of Things big data memory module 143, data and information for storing the transmission of material identifier.
Special species analysis and identification module 144, for differentiating material or carry out thinner that material identifier can not differentiate
The species analysis of cause and discriminating.So as to be used to differentiate material reference without preservation in the database module of material identifier 100
Substance spectra detection feature data when, can from Internet of Things obtain related data.
Technical support and service module 145, for providing technology branch to material identifier user of the present invention by Internet of Things
Hold and service.
Strange land user 146 can use interactive communication of user's progress of instrument of the present invention etc. by Internet of Things and strange land.
In summary, PC of the invention or embedded computer system control are shone with optical transmitting system multispectral light source
Penetrate and be authenticated material, produced with the multispectral light that optical transmitting system multispectral light source is sent with being authenticated matter interaction
Raw light is imaged by the imaging detector with imaging optical system, and multispectral light and thing is authenticated to choose using optical filter
Specific wavelength photoimaging in the light that matter interacts and produced, in order to preferably differentiate material.The present invention is using predetermined simultaneously
The discriminatory criterion of justice, calls installation database contrast known substance just can differentiate thing to the imaging features of these multispectral light
Matter, includes the true and false or uniformity of material.Discrimination method is simple, it is possible to achieve scene and popular material differentiate.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and change ought can be made according to the present invention by knowing those skilled in the art
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. a kind of material discrimination method, including：
The multispectral light source selection information control inputted according to user opens corresponding spectroscopic light source irradiation and is authenticated material；
The picture signal that the light irradiation that reception multispectral light source is sent is authenticated material and produced, and described image signal is carried out
Processing is authenticated substance spectra image, total light radiant flux and irradiance distribution to obtain；
Material and the contrast of known substance progress spectrum picture, the contrast of total light radiant flux and irradiance distribution pair are authenticated by described
Than, and display comparison result.
2. material discrimination method according to claim 1, it is characterised in that methods described also includes：
Material and the contrast of known substance progress spectrum picture, the contrast of total light radiant flux and irradiation level point are authenticated by described
Cloth is contrasted, if one of those, two or all contrast is to differentiate material, if the implementing result for wherein having a contrast is institute
State that to be authenticated material different from the known substance, then judge described in be authenticated material different from the known substance.
3. according to the method described in claim 1, it is characterised in that select information to open corresponding light more according to multispectral light source
In the step of composing light source,
The multispectral light source selection information includes selection and opens a LED or laser, and part LED or laser are opened in selection
Device, and open whole LED or laser.
4. according to the method described in claim 1, it is characterised in that processing acquisition is carried out to described image signal and is authenticated material
Spectrographic detection characteristic the step of include：Picture signal is filtered, hot-tempered or smoothing processing is dropped.
5. according to the method described in claim 1, it is characterised in that described image signal is handled and is authenticated thing to obtain
In the step of matter spectrum picture, total light radiant flux or irradiance distribution：
The substance spectra image that is authenticated adds composite coloured including black and white spectrum picture and to the black and white spectrum picture
To generate chromatic spectrum detection image.
6. method according to claim 5, it is characterised in that handled described image signal and be authenticated thing to obtain
The step of matter spectrum picture, total light radiant flux or irradiance distribution, includes：
It is composite coloured to generate chromatic spectrum detection image to the addition of described image signal；
Material and the contrast of known substance progress spectrum picture, the contrast of total light radiant flux and irradiance distribution pair are authenticated by described
Than the step of include：
By composite coloured spectrographic detection image and the composite coloured spectrum of the known substance that material is authenticated described in generation
Detection image is contrasted.
7. method according to claim 6, it is characterised in that composite coloured generation colourama is added to described image signal
The step of spectrum detection image, includes：
According to the light source select information judge the light source for the visible ray of known wavelength, the non-visible light of known wavelength or
The non-visible light of unknown wavelength；
Image for the known wavelength visible ray formation of acquisition adds RGB color, is the figure of the non-visible light formation of known wavelength
It is that the image addition non-genuine produced by the light of unknown wavelength is colored and corresponding with its gray value as addition non-genuine is colored
RGB color.
8. according to the method described in claim 1, it is characterised in that described image signal is handled and is authenticated thing to obtain
The step of matter spectrum picture, total light radiant flux and irradiance distribution, includes：
The total radiant flux for being authenticated material is obtained, imaging of the material to multispectral light will be authenticated and be divided into quantity identical MxN
Individual grid, wherein E ' (m, n, λ) are the irradiation level of (m, n) individual grid in the imaging grid, and calculating is authenticated material to light more
The total light radiant flux for composing the imaging grid of light is Φ '0(λ) is as follows：
By it is described be authenticated material and known substance carry out spectrum picture contrast, the contrast of total light radiant flux (or:Delete) and irradiation
The step of Degree distributions ratio, includes：
Material and the total light radiant flux contrast of known substance progress will be authenticated by described,
It is known that imaging of the material to multispectral light is divided into MxN grid, wherein E (m, n, λ) be the in imaging grid (m,
N) irradiation level of individual grid, λ is a certain monochromatic wavelength in multispectral light.Calculate imaging net of the known substance to multispectral light
Total light radiant flux of lattice is Φ0(λ) is as follows：
δ S are the areas of (m, n) individual grid,
It is described be authenticated material and the known substance similarity be：
When similarity R (λ) is 1, it is similar to known substance that expression is authenticated material；Conversely, similarity R (λ), which deviates 1, then represents quilt
Differentiate that material is dissimilar with known substance, deviate 1 more big more dissimilar.LED or laser diode in light source can individually or
Partly or entirely it is unlocked with the different wavelength X of correspondence, to obtain different imagings.If, for the similarity of a certain wavelength X
It is larger that R (λ) value deviates 1, you can judgement is authenticated material and known substance not seemingly；Otherwise, for all wavelengths λ similarity
R's (λ) is 1 or close to 1, that is, can determine whether to be authenticated material similar to known substance.User's acceptable similarity it is big
It is small rule of thumb to be defined by user.
9. according to the method described in claim 1, it is characterised in that described image signal is handled and is authenticated thing to obtain
The step of matter spectrum picture, total light radiant flux and irradiance distribution, includes：
The irradiance distribution of material is authenticated described in obtaining, known substance is divided into MxN grid to the imaging of multispectral light, is united
Count distribution S (λ, E) of its grid number with irradiation level E；
Material and the contrast of known substance progress spectrum picture, the contrast of total light radiant flux or irradiance distribution pair are authenticated by described
Than the step of include：
Material and known substance progress irradiance distribution contrast will be authenticated by described,
Wherein, it is authenticated imaging of the material to multispectral light and is divided into MxN grid, counts distribution of its grid number with irradiation level E
S'(λ, E).λ is a certain monochromatic wavelength in multispectral light,
It is described be authenticated material and the known substance similarity be：
Wherein, μ is to consider known substance imaging grid number with irradiation level E distribution S (λ, E) and be authenticated material imaging grid number
With irradiation level E distribution S'(λ, E) contribute similarity weighted and the weighted factor that influences similarity and be multiplied by, weighting because
Son is:
When similarity R (λ) is 1, it is similar to known substance that expression is authenticated material；Conversely, similarity R (λ), which deviates 1, then represents quilt
Differentiate that material is dissimilar with known substance, deviate 1 more big more dissimilar.LED or laser diode in light source can individually or
Partly or entirely it is unlocked with the different wavelength X of correspondence, to obtain different imagings.If, for the similarity of a certain wavelength X
It is larger that R (λ) value deviates 1, you can judgement is authenticated material and known substance not seemingly；Otherwise, for all wavelengths λ similarity
R's (λ) is 1 or close to 1, that is, can determine whether to be authenticated material similar to known substance.User's acceptable similarity it is big
It is small rule of thumb to be defined by user.
10. according to the method described in claim 1, it is characterised in that be authenticated material and known substance progress spectrum by described
Image comparison, the contrast of total light radiant flux and irradiance distribution are contrasted, and the step of display comparison result includes：
Substance spectra image comparison operating result, total light radiant flux contrast operation result and irradiance distribution are authenticated by described
Contrast operation's result is stored in buffer area by data buffer storage operation, then is revealed through display image and identification result operation
Differentiate the foundation of material as user.
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| CN108007876A (en) * | 2017-11-28 | 2018-05-08 | 牡丹江师范学院 | A kind of Internet of Things material identifier |
| CN108827889B (en) * | 2018-06-13 | 2021-02-05 | 江西中医药大学 | Glue material identification method based on optical characteristics |
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| CN106996916B (en) | 2020-05-01 |
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