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773 results about "Ir microscope" patented technology
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Infrared endoscopic balloon probes
Balloon probes, adapted for use in endoscopy and other medical procedures, are useful to obtain spectroscopic information reflected or emitted from a tissue of interest in the infrared spectral region. The information collected by the probe is useful in the diagnosis and treatment of disease. The invention also relates to methods utilizing these probes to analyze a surface of interest, in a minimally invasive manner, in connection with the diagnosis and treatment of disease.
Owner:HYPERSPECTRAL IMAGING
Multi-Wavelength Spatial Domain Near Infrared Oximeter to Detect Cerebral Hypoxia-Ischemia
InactiveUS20080139908A1Material analysis by optical meansDiagnostic recording/measuringTissue oxygenationMulti wavelength
Methods and apparatus for measuring cerebral O2 saturation and detecting cerebral hypoxia-ischemia using multi-wavelength near infrared spectroscopy (NIRS). Near-infrared light produced by an emitter is directed through brain tissue. The intensity of the light that passes through the brain tissue is measured using photodiode detectors positioned at distinct distances from the emitter. This process is conducted for at least three wavelengths of near-infrared light. One of the wavelengths used is substantially at an isobestic point for oxy-hemoglobin and deoxy-hemoglobin, but the other two may be any wavelengths within the near-infrared spectrum (700 nm to 900 nm), so long as one of the additional wavelengths is greater than the isobestic point and the other is less than the isobestic point. Tissue oxygenation is calculated using an algorithm derived from the Beer-Lambert law. Cerebral hypoxia-ischemia may be diagnosed using the calculated tissue oxygenation value.
Owner:KURTH CHARLES DEAN
Spectroscopic imaging device employing imaging quality spectral filters
InactiveUSRE36529E1Retaining image fidelityQuick buildRadiation pyrometryInterferometric spectrometryLow speedImaging quality
Techniques for providing spectroscopic imaging integrates an acousto-optic tunable filter (AOTF), or an interferometer, and a focal plane array detector. In operation, wavelength selectivity is provided by the AOTF or the interferometer. A focal plane array detector is used as the imaging detector in both cases. Operation within the ultraviolet, visible, near-infrared (NIR) spectral regions, and into the infrared spectral region, is achieved. The techniques can be used in absorption spectroscopy and emission spectroscopy. Spectroscopic images with a spectral resolution of a few nanometers and a spatial resolution of about a micron, are collected rapidly using the AOTF. Higher spectral resolution images are recorded at lower speeds using the interferometer. The AOTF technique uses entirely solid-state components and requires no moving parts. Alternatively, the interferometer technique employs either a step-scan interferometer or a continuously modulated interferometer.
Owner:US DEPT OF HEALTH & HUMAN SERVICES
Apparatus for evaluating biological function, a method for evaluating biological function, a living body probe, a living body probe mounting device, a living body probe support device and a living body probe mounting accessory
ActiveUS20080262327A1Good effectReduce variationOptical sensorsMeasuring/recording heart/pulse rateBiological bodyMedicine
The apparatus for evaluating biological function of the present invention has living body probes 1, a behavioral information measuring part 2 and an apparatus body 3, and it utilizes near-infrared spectroscopy to evaluate biological function; apparatus body 3 has a controller 8 for calculating (based on light information from living body probes 1) a variety of parameters derived from two-dimensional diagrams showing relationships between changes in oxyhemoglobin and changes in deoxyhemoglobin and two-dimensional diagrams showing relationships between absolute amounts of oxyhemoglobin and absolute amounts of deoxyhemoglobin, a behavioral information input part for entering behavioral information measured by means of behavioral information measuring part 12, and a display part 10 for performing various types of image displays based on various parameters calculated by means of controller 8 and / or behavioral information entered in the behavioral information input part.
Owner:KATO
Near-infrared spectrum imaging system and near-infrared spectrum imaging method for diagnosis of depth and area of burn skin necrosis
ActiveCN103815875AFavorable guidanceAvoid painDiagnostics using spectroscopyOptical sensorsTissue proteinBurned skin
The invention provides a near-infrared spectrum imaging system for diagnosis of depth and area of burn skin necrosis. The near-infrared spectrum imaging system comprises a spectrum imager and a computer-control system. The spectrum imager acquires 1100-2500nm waveband spectral signals of burn skin necrosis tissue of a target area, the spectral signals are subjected to image analyzing and processing through the computer-control system, the depth and area of burn of the target area can be acquired through spectral matching recognition upon a spectral reflectance curve corresponding to each image element in spectral images and a standard spectral reflectance curve in a burn skin necrosis spectral database in a data module and are synthesized into three-dimensional image display of the target area. By the near-infrared spectrum imaging system, the spatial structure of skin changed due to tissue protein denaturation before and after the skin burn can be specified, so that micron-level information about boundaries of normal skin tissue and necrotic tissue and the depth of burn skin necrosis can be provided visually, and clinical diagnosis, treatment and prognosis judgment can be supportively facilitated.
Owner:ZHEJIANG DEPUSI MEDICAL TECH CO LTD
Tunable photonic cavities for in-situ spectroscopic trace gas detection
Compact tunable optical cavities are provided for in-situ NIR spectroscopy. MEMS-tunable VCSEL platforms represents a solid foundation for a new class of compact, sensitive and fiber compatible sensors for fieldable, real-time, multiplexed gas detection systems. Detection limits for gases with NIR cross-sections such as O2, CH4, COx and NOx have been predicted to approximately span from 10ths to 10s of parts per million. Exemplary oxygen detection design and a process for 760 nm continuously tunable VCSELS is provided. This technology enables in-situ self-calibrating platforms with adaptive monitoring by exploiting Photonic FPGAs.
Owner:LAWRENCE LIVERMORE NAT SECURITY LLC
Method for diagnosing crop water deficit through hyperspectral image technology
InactiveCN102495005AHigh precisionIncrease diversityColor/spectral properties measurementsVisual technologyMultidimensional data
Owner:JIANGSU UNIV
Visible/near infrared image sensor array
InactiveUS7436038B2Television system detailsTelevision system scanning detailsSensor arrayLow earth orbit
A MOS or CMOS sensor for high performance imaging in broad spectral ranges including portions of the infrared spectral band. These broad spectral ranges may also include portions or all of the visible spectrum, therefore the sensor has both daylight and night vision capabilities. The sensor includes a continuous multi-layer photodiode structure on a many pixel MOS or CMOS readout array where the photodiode structure is chosen to include responses in the near infrared spectral ranges. A preferred embodiment incorporates a microcrystalline copper indium diselenide / cadmium sulfide photodiode structure on a CMOS readout array. An alternate preferred embodiment incorporates a microcrystalline silicon germanium photodiode structure on a CMOS readout array. Each of these embodiments provides night vision with image performance that greatly surpasses the GEN III night vision technology in terms of enhanced sensitivity, pixel size and pixel count. Further advantages of the invention include low electrical bias voltages, low power consumption, compact packaging, and radiation hardness. In special preferred embodiments CMOS stitching technology is used to provide multi-million pixel focal plane array sensors. One embodiments of the invention made without stitching is a two-million pixel sensor. Other preferred embodiments available using stitching techniques include sensors with 250 million (or more) pixels fabricated on a single wafer. A particular application of these very high pixel count sensors is as a focal plane array for a rapid beam steering telescope in a low earth orbit satellite useful for tracking over a 1500-meter wide track with a resolution of 0.3 meter.
Owner:C PHOCUS
Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna
ActiveCN103776790AEnhanced Absorption EnhancementReduce usageNanoopticsColor/spectral properties measurementsGratingBroadband
Owner:CHONGQING UNIV
High frequency deflection measurement of IR absorption
ActiveUS8869602B2Reduce impactEnhanced electric fieldNanotechnologyColor/spectral properties measurementsImage resolutionIr absorption
Owner:BRUKER NANO INC
Method and apparatus for high spatial resolution spectroscopic microscopy
A sample and a scanning probe microscope system are used as the detector for an infrared spectrometer to circumvent the diffraction limit of conventional infrared microscopy, and to provide spectroscopic images with a greatly improved spatial resolution, potentially as low as a few tens of nanometers. The beam from an infrared spectrometer is directed at the sample. The sample is heated to the extent that it absorbs infrared radiation. Thus the resulting temperature rise of an individual region depends upon the particular molecular species present, as well as the range of wavelengths of the infrared beam. These individual temperature differences are detected by a miniature thermal probe. The thermal probe is mounted in a scanning thermal microscope. The scanning thermal microscope is then operated used to produce multiple surface and sub-surface images of the sample, such that the image contrast corresponds to variations in either thermal diffusivity, surface topography or chemical composition.
Owner:TA INSTR
Efficient data extraction method for high-temporal-and-spatial- resolution near infrared spectroscopy system
An efficient method for the extraction of hemodynamic responses in Near-Infrared Spectroscopy (NIRS) systems is proposed to increase the spatial and temporal resolution without hardware overhead. The performance improvement is attributed to high Signal-to-Noise-Ratio (SNR) receivers, a modulation scheme, and a Multi-Input-Multi-Output (MIMO) based data extraction algorithm. The proposed system shows an over 2× increment in the figure of merit (FOM) compared to conventional designs. Experimental results support the validity of the proposed system.
Owner:KOREA ADVANCED INST OF SCI & TECH
Multilayer optical film with antistatic additive
InactiveUS20050175827A1Synthetic resin layered productsOptical articlesRefractive indexThin membrane
Methods and apparatuses are provided for the manufacture of coextruded polymeric multilayer optical films. The multilayer optical films have an ordered arrangement of layers of two or more materials having particular layer thicknesses and a prescribed layer thickness gradient throughout the multilayer optical stack. The methods and apparatuses described allow improved control over individual layer thicknesses, layer thickness gradients, indices of refraction, interlayer adhesion, and surface characteristics of the optical films. The methods and apparatuses described are useful for making interference polarizers, mirrors, and colored films that are optically effective over diverse portions of the ultraviolet, visible, and infrared spectra.
Owner:3M INNOVATIVE PROPERTIES CO
Method and apparatus for desolvating flowing liquid
ActiveUS20100000943A1Quick releaseAvoid contactLiquid degasificationComponent separationTemporal resolutionSolvent vapor
Methods and apparatus for desolvating flowing liquid streams while retaining temporal resolution of dissolved substrates are disclosed. A novel small-scale self-regulating spray dryer preserves temporal resolution while desolvating a liquid chromatography eluent stream and depositing the solute onto an optical surface for infrared spectrographic analysis. The liquid eluent is pumped through a heated nebulizer to create a high-speed jet of solute containing liquid and solvent vapor. This jet is directed circumferentially inside a hot cylindrical cavity. Centrifugal force causes the larger liquid droplets to travel along the outer diameter of the cavity. The cavity surface is heated to cause the droplets to film boil. Film boiling reduces droplet contact with the cavity surface thereby retaining the solute in the droplets. The solute temperature is limited by controlling the pressure into which the solvent evaporates from the droplets. When the droplets are sufficiently small, Stokes drag from the exiting solvent vapor carries the droplets out through the center of the cylindrical cavity. After exiting, the superheated solvent vapor further dries the droplets. Solvent vapor is removed by condensation onto a cooled surface. A freezing point reducing agent may be added to improve removal of solvent condensate. Stokes drag from a non-condensable gas maintains the dried droplets in suspension. This suspension travels through an orifice that focuses the impaction of the dried droplets onto the optical surface for infrared analysis. The deposition surface is in an evacuated chamber and is temperature controlled to freeze liquid solutes yet allowing sublimation of residual solvent.
Owner:SPECTRA ANALYSIS INSTR
Method for preparing high-oriented gamma phase polyvinylidene fluoride PVDF thin film
InactiveCN103113602AIncrease nucleation densityIncrease growth rateScanning electron microscopeIr microscope
The invention relates to a method for preparing a high-oriented gamma phase polyvinylidene fluoride PVDF thin film. The method comprises the following steps of: 1) first, casting a thin film for PVDF liquor to heat, insulate and eliminate thermal history, and quickly cooling the PVDF thin film at 50 DEG C / min to 160-170 DEG C; and 2) applying pressure to melt by a polymethylsiloxane plate to apply a shear stress, standing at 160-170 DEG C, wherein the crystallizing form at 160-163 DEG C is converted to alpha crystallizing form, and conversion from alpha crystallizing form to gamma crystallizing form occurs at 168-170 DEG C; the crystallizing crystal nucleus is alpha crystal nucleus at 164-167 DEG C, and the crystallizing form at 168-170 DEG C is gamma crystallizing form. A polarizing microscope, a scanning electron microscope and an infrared spectrometer represent crystallization of the melt in a shear stress field and a crystal structure after crystallization, so that the method is simple in process, and simple, convenient and accessible, and the problem that pure gamma phase PVDF thin film cannot be obtained by isothermal crystallization is solved. The gamma phase PVDF thin film which is high in purity, high in orientation and excellent in thermodynamic property can be prepared.
Owner:SHAANXI UNIV OF SCI & TECH
Diffuse transmission spectrum and image information fusion method for detecting internal quality of honeydew melons on line and device
InactiveCN103792235AEffective quality inspectionMaterial analysis by optical meansSoftware systemLaser sensor
The invention relates to a diffuse transmission spectrum and image information fusion method for detecting internal quality of honeydew melons on line and a device. The method comprises the following steps: establishing a honeydew melon internal quality nondestructive testing model and detecting the internal quality of a honeydew melon sample on line. The device comprises a conveying device, a signal control unit, a diffuse transmission spectrum acquisition device, a honeydew melon image acquisition device and a honeydew melon internal quality detection software system; drag rings for containing honeydew melons are arranged on the conveying device; each drag ring sequentially penetrates through an image acquisition chamber of the image acquisition device and a spectrum acquisition chamber of the diffuse transmission spectrum acquisition device; a layer sensor and two industrial cameras in the image acquisition chamber and a laser sensor and a near infrared spectrometer in the spectrum acquisition chamber are connected with a computer provided with the honeydew melon internal quality detection software system through the signal control unit. According to the method and the device, the internal quality of honeydew melons can be effectively detected, and the defect that internal quality indexes of the honeydew melons cannot be accurately detected through the image information is overcome.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY
Infrared absorption structure and uncooled infrared detector based on infrared absorption structure
InactiveCN102226719AImprove absorption rateEnhanced infrared absorptionPyrometry using electric radation detectorsThermal insulationConductive materials
The invention discloses an infrared absorption structure and an uncooled infrared detector based on the infrared absorption structure. The structure is composed of a bottom infrared reflecting layer with high conductivity, a first insulating layer, an infrared sensitive layer, a second insulating layer and a surface structure layer, wherein the above-mentioned layers are overlaid successively. The surface structure layer is manufactured by nonmetal conductive materials and has an island-like array structure in a circle or square shape, wherein the array structure is distributed according to two-dimension period. On the basis of the structure of the surface structure layer, it is easy to design a high-infrared absorption structure with a certain spectral width by selecting an appropriate surface conductive property; meanwhile, an infrared response of wide angle can be obtained. An infrared detector based on the infrared absorption structure has advantages of low thermal mass and no limitation of a cavity height of thermal insulation. Moreover, the infrared absorption structure is not sensitive to an incident angle of infrared radiation. Therefore, the infrared absorption structurecan be widely applied to fields including an infrared biochemical sensor, an infrared spectrometer, and an uncooled infrared thermal imaging system and the like.
Owner:HUAZHONG UNIV OF SCI & TECH
System for noninvasive determination of analytes in tissue
InactiveUS8730047B2Easy to measureEfficient collectionDiagnostics using spectroscopyPerson identificationHuman bodyAnalyte
Owner:ROCKLEY PHOTONICS LTD
Method for making PEN/PMMA multilayer optical films
Methods and apparatuses are provided for the manufacture of coextruded polymeric multilayer optical films. The multilayer optical films have an ordered arrangement of layers of two or more materials having particular layer thicknesses and a prescribed layer thickness gradient throughout the multilayer optical stack. The methods and apparatuses described allow improved control over individual layer thicknesses, layer thickness gradients, indices of refraction, interlayer adhesion, and surface characteristics of the optical films. The methods and apparatuses described are useful for making interference polarizers, mirrors, and colored films that are optically effective over diverse portions of the ultraviolet, visible, and infrared spectra.
Owner:3M INNOVATIVE PROPERTIES CO
Carbon nanotube coatings for visible and ir camouflage
InactiveUS20130137324A1Strong adhesionReduce weightNanotechSynthetic resin layered productsCarbon nanotubeChemical stability
The present invention provides carbon nanotube coated fabric compositions for the purpose tuning the optical properties of fabric, in particular the optical transmittance, absorption, and reflectance in the visible, NIR and mid-IR ranges. The carbon nanotube coated fabrics of the present invention exhibit relatively uniform absorptivity and reflectivity of light across visible and IR spectral ranges and are ideal for use in stealth operations for counteracting night vision detection devices. The carbon nanotube coatings are thin, flexible coatings exhibiting high thermal and chemical stability, strong adhesion, low weight, and high tensile strength. In one embodiment, the composition includes an insulator layer for thermally isolating the CNT coating and establishing thermal equilibrium with the surrounding environment through the absorption of thermal IR emitted from hot objects. Processes for preparing the carbon nanotube coated fabrics are also described herein.
Owner:TANG XIAOWU SHIRLEY
Chitosan quaternary ammonium salt, preparing method and application of the same
InactiveCN101130574ASimple preparation processLow costCosmetic preparationsMake-upAntioxidantOxidation resistant
The invention discloses a preparing method and application of polyose quaternary ammonium salt in oceanography engineering technique domain, which comprises the following steps: modify for high and low molecular weight chitose with glycidyl trimethyl ammonium chloride; adopting different condition; preparing hydroxypropyl trimethyl amchlor chitose; proceeding simulation for the structure with infrared spectrum; analyzing for IR spectrogram; replacing with N upper; possessing oxidation resistance desiccating moisture keeping active; setting the active stronger than chitose quaternary ammonium salt. This invention can increase oxidation resistance and desiccating moisture keeping property of the chitose, which can be used as antioxidant and humectant for food and cosmetic product.
Owner:INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Near infrared spectroscopy device with reusable portion
InactiveUS20060189860A1Small sizeFirmly attachedMaterial analysis by optical meansDiagnostic recording/measuringSurgical operationHigh energy
A NIRS sensor device for brain monitoring is small in size, provides reliable attachment to a patient, blocks ambient light, is easy to use, is hygienic, and supports data integration with surgical and monitoring systems. The sensor device is coupled to a remote near infrared light source via a hybrid cable. Since the light source is remotely located, a source adapted for providing high energy, short pulses can easily be used so that there is less chance of interference by superficial non-brain tissues and less interference from ambient light. In addition, the remote location avoids changes in output of local light sources experienced in the prior art during hypothermia procedures (e.g., bandwidth shifts in LEDs as a result of lowered temperature). The higher energy may be achieved by the use of laser diodes as opposed to locally-mounted LEDs typically used in the prior art. The sensor device is a two-piece design comprising a reusable portion containing the photodetector(s) and a disposable portion that receives the light from the reusable portion and bends it to direct the light into the brain.
Owner:TERUMO CARDIOVASCULAR SYST CORP
Spectroscopic methods for component particle analysis
InactiveUS7595878B2Acquiring/recognising microscopic objectsParticle size analysisSubstance useGeometric property
The invention relates to methods of assessing one or more geometric properties of a particle of a substance using an infrared spectroscopic property of the substance. The method is useful, for example, for assessing particle sizes and size distributions in mixtures containing both particles of the substance and other materials.
Owner:CHEMIMAGE TECH LLC
Process and equipment for production of polyimide film
InactiveUS20120292800A1Good precisionImprove productivityInvestigating moving sheetsAuxillary shaping apparatusIn planeProduction rate
Provided are a method and apparatus for the production of a polyimide film, which allow a polyimide film having physical properties with in-plane uniformity to be produced with high productivity. In the method for the production of a polyimide film, a solvent content of a self-supporting film is measured by infrared spectroscopy, and based on the measurement result, one or more kinds selected from a drying condition of a cast of a polyimide precursor solution, a post-heating condition of the self-supporting film, and an amount of extrusion of a polyimide precursor solution from a die are controlled.
Owner:UBE IND LTD
Parallel infrared spectroscopy apparatus and method
InactiveUS20050056787A1High sensitivityImprove accuracyThermometer detailsCombination devicesSpectroscopyProviding material
A library of material samples is provided in a condition suitable for imaging using infrared (IR) spectroscopy. The samples are provided to one or more detection cells, each of the cells including or containing a reflective surface. Preferably, for imaging, an energy source (e.g. a source of infrared radiation) provides energy to the detection cells to interact with the samples. Thereafter, images (e.g., spectra) related to the samples are created based upon the interaction.
Owner:FREESLATE
Infrared image-spectrum associated intelligent detection method and apparatus
ActiveUS20160371851A1Increase information dimensionHigh detection and recognition rateImage enhancementImage analysisFrequency spectrumScanning mirror
The present invention discloses an infrared image-spectrum associated intelligent detection method and apparatus, including: first searching for targets in a field of view (FOV), and performing image-spectrum associated intelligent identification sequentially on the searched targets, that is, first performing infrared image target identification on each target, and if a detection identification rate is greater than a set threshold, outputting an identification result and storing target image data; otherwise, acquiring an infrared spectrum of the target, and performing target identification based on infrared spectrum features. The present invention further discloses an apparatus for performing target detection using the above method, and the apparatus mainly includes a two-dimensional scanning mirror, a multiband infrared optical module, a long-wave infrared (LWIR) imaging unit, a broadband infrared spectrum measuring unit, and a processing and control unit. The method and apparatus of the present invention are improvements and enhancements of the conventional infrared target detection method and device, and may be used for infrared image detection, infrared image-spectrum associated detection of the target and infrared spectrum collection of the target. Compared with the conventional infrared detection device, the present invention has a higher cost performance, and can significantly improve the detection identification rate of the target.
Owner:HUAZHONG UNIV OF SCI & TECH
Traceable method for rice origin and application thereof
InactiveCN105021562AReduce testing costsFast measurementMaterial analysis by optical meansMathematical modelAgricultural engineering
The present invention discloses a traceable method for rice origin and application thereof, and belongs to the technical field of security and detection of agricultural product. The method is as below: pretreating paddy rice or polished rice into rice flour, acquiring spectral image by an infrared spectroscopy, pretreating the spectral image, establishing an infrared spectral signature mathematical model of rice origin, correcting the mathematical model, and identifying rice origin by the mathematical model. The method of has the characteristics of simple feedstock pretreatment, low detection cost, easiness to operate, fast detection, good repeatability and high accuracy and is applicable to for traceability and identification of the origin of rice and rice flour.
Owner:HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
Methods and apparatus for patient monitoring
Owner:PORT A NIRS PTY LTD
Novel photocatalyst K-g-C3N4 as well as preparation and application thereof
InactiveCN107774294AWater/sewage treatment by irradiationWater treatment compoundsMethyl orangePotassium hydroxide
The invention relates to a photocatalyst K-g-C3N4 as well as preparation and application thereof. The preparation method of the photocatalyst comprises the following steps: with nitrogen-containing organic matters and potassium hydroxide as precursors, performing aftertreatment, and performing calcining and grinding, thereby obtaining the photocatalyst K-g-C3N4. The photocatalyst K-g-C3N4 is represented through X-ray diffraction (XRD), infrared ray (IR) spectrums, ultraviolet visible diffuse reflection (UV-Vis DRS), laser particle size distribution diagrams, and the like. The invention furtherrelates to application of the photocatalyst. Methyl orange is adopted as a mold compound of a photocatalysis reaction, and the ultraviolet catalytic activity of the photocatalyst and the influence ofdifferent detergents to the catalytic activity of the photocatalyst are evaluated.
Owner:FUYANG NORMAL UNIVERSITY
Tobacco leaf classification method based on spectrum and machine vision coupling
InactiveCN110705655AImprove accuracyImprove efficiencyMaterial analysis by optical meansCharacter and pattern recognitionPattern recognitionMachine vision
The invention discloses a tobacco leaf classification method based on spectrum and machine vision coupling. The tobacco leaf classification method comprises the steps of collecting near infrared spectrum values and images of tobacco leaves through a near infrared spectrometer and a camera; removing the background of the acquired image, reducing the noise, calculating the average value of the nearinfrared spectrum points of the tobacco leaves, and eliminating the influence of uneven distribution of tobacco leaf particles on the average value; extracting image features; performing dimension reduction processing on the image features and the near infrared spectrum to obtain main features; fusing the main features and processing the main features by adopting a normalization method; creating agrading model, dividing the samples into a training set and a verification set, and training and classifying the model to construct a model; importing the fused pre-classified tobacco leaf features into a classification model for discrimination so as to output a maturity judgment result; and a sorting device or a worker classifies the tobacco leaves according to the output maturity judgment result. The tobacco maturity can be automatically recognized and judged, classified collection can be guided or controlled, and the method has the advantages of being accurate in classification, high in automation degree and not prone to damage the tobacco.
Owner:YUNNAN ACAD OF TOBACCO AGRI SCI
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