65 results about "Saturation intensity" patented technology

A method for the automatic detection and correction of red eye in a digital image is disclosed. The method includes defining a digital image in a hue-saturation-intensity (HSI) color space, and identifying a red eye region in a digital image. Using HSI criteria, identified regions are filtered to discard areas unlikely to be the result of red eye effect, and then a plurality of algorithms are used to apply a color correction to each pixel in the identified red eye region. The color correction manipulates each pixel of the red eye region remove the red eye effect. The method is automatic, and requires no input from a user to define the red eye region, to identify the true color of the red eye region, or to apply the color correction.

The invention provides an image reinforcement method, an image reinforcement device and a display device. The image reinforcement method comprises the steps of: converting an original image from a RGB (red-green-blue) color space into an HIS (Hue-Saturation-Intensity) color space; maintaining the tone component, and respectively performing reinforcement processing on the brightness component and the saturation level component to obtain a processed image; and converting the processed image from the HIS color space into the RGB color space. The image reinforcement method provided by the invention converts the image from the RGB color space into the HIS color space to perform the reinforcement processing so as to avoid the defect of color loss.

The utility model discloses an adherent white blood cell segmentation method based on nucleus-marked watershed transformation. The adherent white blood cell segmentation method comprises the following steps: firstly inputting original RGB (Red, Green, Blue) images and discovering the generally difficult-to-solve problem of peripheral white blood cells and bone marrow white blood cells in the image processing process; secondly, carrying out HIS (Hue-Saturation-Intensity) and LUV color space and grayscale space conversion on the original images and analyzing the characteristics of each channel component image; thirdly, respectively carrying out threshold value segmentation and image subtraction on components B and grayscale images to obtain white blood cell images containing a part of impurities; fourthly, obtaining a target taking a white blood cell nuclei as a marker through an image enhancement technology; fifthly, carrying out morphological operation and watershed transformation on the white blood cell nuclei and the white blood cell images containing the impurities to remove the impurities, obtain accurate white blood cell images and solve the problem of cell adhesion; finally, cutting the targeted white blood cells, converting the targeted white blood cells into an LUV space, clustering the white blood cell images from the view of space and color and obtaining a white blood cell nucleus.

The invention relates to a magnetic thermometer nm particle with biocompatibility, which has biocompatibility, and double response properties of magnetism and thermometer property, and the particle diameter thereof is 20 to 60 nm, and the magnetic responsibility is strong, and magnetic saturation intensity is 10.0 to 27.0 emu / g. The synthetic method of the magnetic thermometer nm particle with biocompatibility comprises: firstly, adopting chemical coprecipitation method to prepare magnetic Fe3O4 nm particle, and using silane coupler to hold surface modification, and then using the modified magnetic Fe3O4 nm particle as a seed, and having polyreaction with dextran, N-isopropyl acrylamide, finally obtaining the magnetic thermometer nm particle with biocompatibility. The magnetic thermometer nm particle with biocompatibility synchronously has double responses of magnetism and thermometer property, and has wide application prospect in the fields of drug release, protein and enzyme separation.

The invention discloses a method for identifying tea leaves based on colors and shapes. By comprehensively utilizing a computer vision and image processing technology, increasing shape parameters of the tea leaves and improving a neural network algorithm, the automation for indentifying the qualify of the tea leaves is realized. The method comprises the following steps of: directly obtaining tea leaf images by a digital camera or a video camera and carrying out conversion and pre-treatment on image formats; and then, enabling tea leaf color characteristic parameters extracted based on an HSI (Hue-Saturation-Intensity) model and tea leaf shape characteristic parameters extracted by binary images to pass through a genetic neural network; and finally, finishing the automatic identification of the tea leaves. Through the way, a better identification effect can be obtained and the processing time of colored images is greatly shortened, thereby high coincidence between a detected result and a manual detected result is realized.

The invention discloses a license plate locating method based on a colorful binary image. The method comprises the following steps: first, converting collected RGB (Red Green Blue) colorful images into an HSI (Hue-Saturation-Intensity) color model space, conducting colorful binary processing, and initializing binary state feature matrixes being 1; then, setting a saturation threshold, a luminance threshold and a hue threshold to process pixels in the colorful image, and therefore changing the values of 0 and 1 in the binary matrixes; finally, utilizing open and closing operation of mathematical morphology, and combining geometric features of license plate regions to remove a false license plate region; making a horizontal vertical projection to obtain horizontal and vertical ordinates to divide, and finally realizing license plate region locating. The method directly processes information such as hue, saturation and luminance in the image, combines the mathematical morphology and the inherent characteristics of license plates, and fully utilizes the color feature, the texture feature and the size feature of the license plate regions, so that the locating accuracy rate is increased. The method can be more easily realized.

The invention claims to protect a dual-wavelength tunable short pulse fiber laser, mainly including pumping sources (1)(10), wavelength division multiplexers (2)(4)(6)(11), gain fiber (3)(12), a graphene saturable absorber (5), fiber couplers (7)(13), circulators (16)(17), reflection type adjustable filters (8)(14) and broadband fiber environments (9)(15) formed by 50:50 fiber couplers. The dual-wavelength tunable short pulse fiber laser provided by the invention adopts a double-ring cavity or double-linear cavity structure, the wavelength division multiplexers (4)(6) and the graphene saturable absorber (5) serve as a common branch of the double-ring cavity or double-linear cavity structure, utilizes the advantages of wide wavelength absorption range, smooth absorption, low saturation intensity and ultrafast recovery time of the graphene saturable absorber, and combined with the reflection type adjustable filters, stable output of synchronous short pulses with tunable single wavelengths and large dual-wavelength intervals of the fiber laser can be realized.

The invention provides a synchronous hue shift conversion method, a method and a system thereof for measuring three-dimensional appearance. In the invention, a colored fringe image of an object is obtained by using a colored structured light, one hue information of the colored fringe image is obtained from a hue saturation intensity (HSI) model of the colored fringe image, and finally, the hue information is converted into one hue phase change information. The hue phase change information is used to reconstruct the three-dimensional appearance of the object by hue phase reconstruction. Since the colored structured light comprises multiple colored lights having phase difference in the spatial domain, the phase shift or phase reconstruction can be performed if a single colored image contains phase encapsulation information after multi-step phase shifts. Therefore, the processes of traditional phase encapsulation and Euler conversion are omitted, and the efficiencies for the surface reconstruction and the system measurement on the object are improved.

The invention discloses a method for detecting a counterfeit webpage, which relates to the technical field of information safety and is used for improving the detection accuracy and detection efficiency of a phishing attack website. The method comprises the following steps of: converting a webpage to be detected into a webpage image and converting the webpage image from a red-green-blue (RGB) space into a hue-saturation-intensity (HSI) space; partitioning the converted webpage image by a spectral clustering method; extracting the characteristic vector of each sub-image after partitioning; extracting the characteristic vector of the position relation between adjacent sub-images after portioning; combining the characteristic vector of each sub-image with the characteristic vector of the position relation between the adjacent sub-images to form a webpage image characteristic vector and performing dimensionality reduction on the webpage image characteristic vector by a kernel principal component analysis method so as to acquire a characteristic space; training and testing the characteristic space by using a transductive support vector machine classifier; and judging whether the webpage to be detected is the counterfeit webpage or not according to the classification result of the classifier. The method has high adaptability and high detection accuracy in the aspect of the detection of the phishing attack website.

The invention relates to a method for preparing nano-scale nickel-copper-zinc-iron oxide powder, which comprises the following steps: using nickel sulfate, copper sulfate, zinc sulfate and ferrous sulfate as raw materials, ammonium oxalate as co-precipitation agent, high molecular material plasmosan as dispersant, deionized water as solvent and anhydrous ethyl alcohol as washing agent to prepare nickel sulfate solution, copper sulfate solution, zinc sulfate solution, ferrous sulfate solution and ammonium oxalate solution through selecting chemical substances; and under the heating state at the temperature of 50 DEG C in a water bathtub, in four flasks, dripping the plasmosan solution and the nickel-copper-zinc-iron mixed solution into the ammonium oxalate solution, stirring the mixture by magnetic force, and mixing the solutions fully to prepare co-precipitation solution, and finally obtaining the nano-scale nickel-copper-zinc-iron oxide powder through vacuum filtering, washing, filtering, vacuum drying and calcining at the temperature of 800 DEG C, wherein the particle diameter of the powder is 50 to 80 nanometers, and the saturation intensity is 52eum / g. The method has the advantages of short process flow, high yield up to 98.33 percent and good product purity, and can be used for manufacturing sheet type devices of electronic elements.

A material with a tunable negative refraction index belongs to the technique field of microwave materials. The material is formed by periodically stacking a sheeting-shaped isolation-typed ferrimagnetic material with an equivalent negative permeability and a sheeting-shaped material with an equivalent negative specific inductive capacity; the sheeting-shaped isolation-typed ferrimagnetic material is a ferrite garnet ferrimagnetic material with the specific inductive capacity being 13.8, the saturation intensity being 1830 Gs, the loss tangent being 0.0004, and the thickness being 1mm to 2mm; the sheeting-shaped material with the equivalent negative specific inductive capacity is a metal array formed by parallel metal lines sedimentated on a polytetrafluoroethylene glass fiber circuit substrate with the thickness being 0.254mm to 0.508mm; and for each metal line, the thickness is 0.018mm to 0.035mm, the width is 0.2mm, and the interval among the metal lines is 1.508mm to 2 mm. The material with the negative refraction index has wide operating frequency; the frequency band realizing negative refraction index can change along with the change of externally-applied magnetic field. The material with the tunable refraction index has wide application foreground in the fields such as stealth materials, antenna works, microwave devices and millimeter wave devices.

The invention disclose a preparation method of ethyl silicon oil magnetic liquid, aiming at providing ethyl silicon oil magnetic liquid and the preparation method to overcome the drawbacks of the prior art. The granularity of the magnetic grains is even and the mean grain diameter is 8 to 9 nm without gathering. The ethyl silicon oil magnetic liquid is possessed with a series of special performances of the ethyl silicon oil and good low temperature resistance. The preparation method does not separate out any deposit and can still keep fluid putting at standstill and minus 12 DEG C for one month. The saturation intensity can reach 20.0 emu / g tested by vibrating sample magnetometer. The preparation method of ethyl silicon oil magnetic liquid has the advantages of high magnetism, steady dispersion, simple method and low requirement to the equipments.

The invention provides a structure light three-dimensional imaging method and system for the high light reflection object surface, and relates to the field of three-dimensional measuring. The method comprises the steps that a plurality of binary phase shifting encoding patterns with the same frequency and different illumination intensities are projected to the surface of an object to be measured,according to reflected images, a plurality of modulation picture sets under different illumination intensities are generated, and descending sorting is performed according to the illumination intensities; the illumination saturation intensity for each pixel point in the set with the maximum illumination intensity is obtained, a saturated pixel point is obtained, a saturated region is determined, substitute pixel points with the minimum illumination saturation intensity and the maximum illumination intensity corresponding to saturation pixel points in various other corresponding regions are obtained, phases are calculated, the phases of the substitute pixels are used for replacing phases of the saturation pixel points, and a repaired three-dimensional image of the object to be measured is obtained. The problem that when three-dimensional rebuilding is performed on a high light reflection object, phase errors are caused due to excessively-high reflection rate and saturation light intensity is effectively solved, the rebuilding speed is high, the accuracy is high.

To monitor the growth of sugarcanes or intelligently cut off seed sugarcanes containing sugarcane shoots, a method for automatically completing sugarcane segmentation and identification by identifying the shape and stem node characteristics of sugarcanes based on an improved computer vision technology is put forward. First, sugarcane images are obtained by a digital device; then, hue saturation intensity (HIS) color space conversion is performed on the sugarcane images, color characteristics and threshold segmentation of H and S components are combined, AND operation is performed on reverse images after threshold segmentation to get a composite image, and the composite image is divided into 64 column areas; and finally, the characteristic indexes of H parameters, S parameters, roughness ratio, white spot ratio and the like are extracted, and nodes and inter-node columns are classified and identified through a support vector machine so as to complete identification of the nodes and positions, and the average identification rate is 94.2%.

The embodiment of the invention discloses a backlight value extraction method and device. The method comprises the following steps of: converting received image data from an R / G / B (Red / Green / Blue) color space to an HSI (Hue Saturation Intensity) color space to acquire components I of the HSI color space; recording the distribution positions of the components I, and calculating the maximum value and mean value of the components I in the positions; and weighting and averaging the maximum value and the mean vale to obtain the backlight value. Compared with the existing scheme in which the backlight value of a subarea is obtained by adopting complex column diagram statistics, the technical scheme provided by the embodiment of the invention is simpler and is easy to realize by receiving the image data, converting the received image data from the R / G / B color space to the HSI color space to acquire the components I of the HSI color space and extracting the backlight value of a subarea according to the components I.

Since a true color image has richer visual information, how to improve the efficiency of a mosaics algorithm needs to be specially considered. On the basis of the characteristic analysis of RGB (Red, Green and Blue) and HSI (Hue-Saturation-Intensity) color spaces, the invention provides a method for measuring pixel color similarity according to the chromaticity and saturability characteristics of a color, and simultaneously provides a characteristic template extraction method used in color image matching. Through the brightness relationship analysis of an overlapping region between two color images to be mosaic, a brightness change function between images is established, color difference between two images can be globally regulated, mosaic seams can be eliminated, and a visual effect is enhanced.

The invention discloses an application of graphene oxide in preparation of a hydrothermal reaction oxide nanowire. Through induced action of the graphene oxide, the oxide directionally grows in a hydrothermal synthesis process. The invention discloses a ferriferrous oxide nanowire synthesized by using the induced action of the graphene oxide. The ferriferrous oxide nanowire can be synthesized only by uniformly dispersing the graphene oxide into a reaction solution and then adding a ferriferrous oxide precursor, and the reaction can be completed in a water solution, so that the operation is simple, the cost is low, the material is compounded evenly. The obtained reduced graphene oxide / ferriferrous oxide composite material is large in specific surface area, the magnetic saturation intensity can reach 35-45emu / g, the electronic conductivity is high, the electric conductivity and the electromagnetic shielding property of the material are greatly improved, and further industrial application in the field of the ferriferrous oxide nanowire in the field of a positive electrode of a lithium battery, a supercapacitor and an electromagnetic shielding material.

A raisin color sorting detection method based on HSI (Hue-Saturation-Intensity) color features is mainly characterized in that color detection on the raisins is performed by the machine vision technology and then the raisins are classified according to the colors, so that the commercial quality of the raisins is improved. Detection information is the color image information of the raisins; according to specific detection requirements, images acquired are transformed to an HSI space from an RGB space; an H component is utilized for processing; and the threshold setting process is simplified. The structure of a CPLD (Complex Programmable Logic Device) with a DSP (Digital Signal Processor) is employed to establish a raisin color sorting detection hardware platform, and the system integration, the detection speed and the reliability are improved.

The invention relates to a preparation method of an iron-based soft magnetic material. The soft magnetic material is prepared by using an alloy with the chemical formula of (Fe[1-x-y]Co[x]Cu[y])[1-a-b-c](Si[1-z]Cr[z])[a]Yb[b]B[c], wherein x is 0.15-0.18, y is 0.12-0.16, z is 0.21-0.25, a is 0.12-0.15, b is 0.02-0.03, and c is 0.03-0.04. The method comprises the steps of burdening, melting ingot production, electroslag remelting, alloy strip preparation and heat treatment. The soft magnetic material prepared in the invention adopts Co and Cu to substitute parts of Ni in order to improve the soft magnetic performance of the material, the doping of Yb improves the magnetic saturation intensity of the material, the doping of Si, B and Cr improves the resistivity and the corrosion resistance of the material, and the adoption of an electroslag remelting technology enhances the stability of the material. The material has a good soft magnetic performance and low energy loss when the material is used in humid environment and other severe environments for a long term.

This invention relates to digital copier carbon powder, which comprises the following components: ferriferrous oxide magnetic powder for 30 to 40 percent of magnetic saturation intensity more than 85emu / g; 40 to 50 percent of macromolecule resin; 1 to 10 percent of carbon black; 1 to 5 percent of hexamethyldisilazane for mixing, wherein, they go through mixture melting, shaping, rough grinding, gas flow grinding, filtering to get the rough product with particle diameter for 7 to 8 mum; then adding zinc stearate for 3 to 5 percent and earth silicon sparse agent for surface modification to make the product flow property more than 20 percent then for filtering.

The invention discloses a saturable absorber mirror based on graphene and a manufacturing method thereof. The manufacturing method comprises the following steps: growing graphene on a large-area substrate, then coating a silicon dioxide protective layer on the surface of the graphene, cutting into small pieces, performing smooth butt joint on the smooth end surface of an optical fiber and surfaces of the small pieces coated with silicon dioxide, and finally fixing and packaging the optical fiber and the small pieces, thus manufacturing the novel saturable absorber mirror based on graphene. The graphene serving as a saturable absorber has the advantages of low saturation intensity, ultra-fast recovery time, adjustable modulation depth, wavelength independence and the like. No damage is caused to the graphene in the preparation process, so that the complete chemical structure is kept; the silicon dioxide protective layer is coated to prevent the graphene from damage and oxidation and achieve the effect of reducing reflection of impurities; and after packaging, the absorber mirror is not influenced by the external environment. Combined with the specific structural advantage of the absorber mirror which is simple and easy to implement, the manufacturing method provided by the invention is simple, high in efficiency and low in cost, and can realize large-scale industrialization.

The invention relates to a carbon nano-material film saturation absorber and a preparation method thereof. The saturation absorber comprises a circular base material (10) made of a transparent material, a carbon nano-material film (20) attached to at least one circular surface of the circular base material (10), and a driver (30) driving the circular base material (10) to rotate along the axis direction thereof. According to the invention, the rotation-type saturation absorber structure is adopted, the interaction between high-energy lasers and a sample is not concentrated at one point, and heat is not accumulated, so that the high-temperature oxidation reaction of the carbon material is effectively prevented, the light injury threshold of the saturation absorber is further improved, and pulse lasers higher in output power can be obtained; in addition, the saturation intensity is low, the recovery time is short, and the response wavelength range is wide.

The invention discloses a method for preparing magnetorheological fluid. The method comprises three procedures of preparing ferronickel magnetic particles through an electroplating technology, preparing carrier liquid and synthetizing the magnetorheological fluid. Compared with the prior art, the method is used for preparing the magnetorheological fluid through the three procedures, so that the surfaces of suspended carbonyl iron powder magnetic particles are uniformly coated with nickel metal, therefore, the possibility of agglomeration of the magnetic particles is reduced, the particles are prevented from settling effectively, the magnetic particles are prevented from being oxidized, and the obtained magnetorheological fluid is greatly improved in magnetic saturation intensity, and has good anti-settling ability, oxidation resistance and agglomeration resistance. The magnetorheological fluid prepared by the method can be widely used in fields such as aviation, machinery, vehicles or civil construction structure intelligent vibration attenuation.

The invention discloses a method for regulating the image saturation degree. The method comprises the following steps that RGB (red green blue) images are received, parameters are regulated, and the RGB value before the image saturation degree regulation is extracted on the basis of the received RGB image; the RGB value before the image saturation degree regulation and the regulation parameters are substituted into the relational expression of the RGB value after the image saturation degree regulation and the RGB value before the image saturation degree regulation, and the RGB value after the image saturation degree regulation is obtained through calculation, wherein the relational expression is obtained through calculation by an RGB to HIS (hue saturation intensity) formula, a saturation regulation formula and an HIS to RGB formula; the RGB image is subjected to saturation degree regulation on the basis of the RGB value after the image saturation degree regulation, and an RGB image after the regulation is obtained; the RGB image after the regulation is output. The invention also discloses a device for regulating the image saturation degree.

The invention discloses a preparation method of nano Fe3O4 composite graphene and nano Fe3O4 composite graphene prepared thereby. The preparation method of the nano Fe3O4 composite graphene includes the following steps of dissolving divalent ferric salt and trivalent ferric salt in water and stirring to obtain a ferric salt solution, dispersing a graphene oxide solution and / or a reduced grapheneoxide solution in an organic alcohol solvent and stirring to obtain a dispersion solution, mixing the ferric salt solution and dispersion solution, adding precipitants therein to obtain a mixture, transferring the mixture into a reactor for heating to obtain a reaction product, and separating, washing and drying the resulting reaction product to obtain the nano Fe3O4 composite graphene. The nano Fe3O4 composite graphene prepared by the above-mentioned technical scheme has the advantages of stable product quality and high saturation intensity.

The invention relates to the field of electronic material and device and discloses a method for preparing a cobalt ferrite magnetic thick film. The method comprises the following steps that the cobalt ferrite is dispersed in a solvent to prepare a suspension with uniform concentration; subsequently, the thick film is prepared by electrophoretic deposition under a constant electric field condition. The prepared cobalt ferrite magnetic thick film has high coercive field and magnetic saturation intensity, can be applied to the preparation of thick film capacitors and phase shifters and has the advantages of simple equipment, low cost, quick film-forming process and easily controlled components.

The invention relates to a polymer containing pyridine ring and a composition magnetic membrane material and a preparation method thereof. The material is prepared by a layer-by-layer self-assemble method which comprises the following steps of: synthetizing a ligandpolymer containing pyridine ring side-chains and then carrying out the layer-by-layer self-assembly with a transition metal salt of polystyrolsulfon acid on a high density polyethylene membrane matrix by taking coordination mutual action as the driving force. The macromolecule magnetic membrane material is prepared by firstly utilizing the polymer containing pyridine ring side-chains, has novel, simple and easy preparation method, stable magnetic performance, high saturation intensity, low magnetic hysteresis loss, light weight, easy shaping process and is not limited by the shape of the matrix, thereby being an organic soft iron magnetic membrane material with excellent application prospect.

The invention discloses an image processing-based method for determining detergency and dispersibility of engine lubricating oil. The image processing-based method specifically comprises the following steps: dropping one engine lubricating oil drop on filter paper to obtain an oil spot; acquiring an RGB (Red Green Blue) colorful image f by using a camera and inputting the RGB colorful image to a computer; denoising the image of the oil spot to obtain a denoised RGB colorful image; converting the denoised RGB colorful image to an HSI (Hue Saturation Intensity) color model; segmenting an S component image of the HSI color model to obtain a saturation segmentation chart MS; extracting a saturation difference chart CS; calculating a pixel number NS of the saturation difference chart CS; segmenting an I component image of the HIS color model to obtain an intensity segmentation chart MI of the oil spot; extracting an intensity difference chart CI; calculating a pixel number NI of the intensity difference chart CI; and calculating a detergency and dispersibility coefficient K, described in the specification, of the oil product. According to the image processing-based method, a diffusion zone and an oil ring zone are automatically detected since a settling zone, the diffusion zone and the oil ring zone have different transmissivity to the brightness, and thus the detergency and dispersibility are determined. The image processing-based method is simple in calculation and high in precision and is suitable for being adopted in a real-time system.

The invention relates the preparing method of 2, 2'- diamino- 4, 4'- thiazole transient metal chelate and supermolecule magnetic material. The method comprises the following steps: preparing chelate complex with 2, 2'- diamino- 4, 4'- thiazole and transient metal, then mixing the chelate complex and polyacrylic acid, and getting supermolecule magnetic material. The invention has the advantages of novel style method, stable magnetic property, high saturation intensity, and little hysteresis loss.

A Yb3+-doped oxyfluoride transparent glass-ceramic material and its preparation method. The molar percentage composition range of the basic glass of the present invention is: SiO2: 42.0-52.0%, Al2O3: 18.0-27.0%, CaF2: 14.0-21.0% , NaF: 9.0-11.0%, Na2O: 4.5-5.5%, Yb2O3: 0.5-7.0%. The preparation method is as follows: ball mill the raw materials and mix them uniformly to obtain batch materials; place them in a crucible, heat them to 1390-1450°C for 1-3 hours, heat-preserve and melt them for 1-3 hours, cast them, and anneal them at 520-540°C for 1-2 hours. The base glass is heat-treated near its first crystallization peak temperature point (Tx) to obtain glass-ceramics. The crystal phase of the glass-ceramic material includes CaF2 and Ca0.8Yb0.2F2.2 crystal phase formed by part of Yb3+ ions entering the CaF2 lattice. It is a laser dielectric material with excellent spectral performance. Its comprehensive properties are as follows: the absorption cross section is 2.68pm2, the stimulated emission cross section is 5.51pm2, the fluorescence lifetime is 1.32ms, the saturation pump intensity (Isat) is 5.77, and the minimum pump intensity (Imin) is 0.60.