953results about "Color measuring devices" patented technology

The invention relates to the technical field of quality detection in material manufacturing and coating processes, in particular to an intelligent color difference analysis and detection method for paint, which comprises the following steps: S1, acquiring a multispectral dynamic compensation image; s2, texture-color coupling separation is carried out; s3, carrying out adaptive chromatic aberration modeling; s4, process correlation visualization is carried out, color difference data is mapped into a scalable thermodynamic diagram, and grid density is dynamically adjusted according to detection precision; and analyzing geometric feature parameters of the abnormal region, matching a process defect mode library to generate an optimization suggestion, and superposing the optimization suggestion on the thermodynamic diagram by a visual identifier. Through real-time data acquisition, texture interference elimination, model adaptive optimization and process defect analysis, the overall detection precision and efficiency are improved, the intelligent adaptive characteristic is achieved, and different production environments and base material types can be adapted, so that the coating production process is optimized, and the consistency of the coating quality is ensured.

The invention relates to the technical field of display screen detection, and discloses a liquid crystal display screen color difference detection system and method.The system comprises a multispectral imaging module, a curved surface deformation modeling module, a coupling tensor decomposition module, a biological excitation feature extraction module, a dynamic compensation control module and a technological parameter interface module; the method comprises the following steps of synchronously collecting a multispectral image and screen deformation data, constructing and decomposing a multidimensional tensor containing geometric constraints, extracting biological excitation visual features, and generating and applying voltage compensation through model prediction control so as to dynamically correct the color difference of the flexible screen. According to the method, through multispectral and geometry synchronous perception, multidimensional tensor constraint decomposition, biological excitation and deformable convolution feature extraction, time-varying model prediction control and dynamic weight adjustment of fused manufacturing parameters, high-precision capture and personalized compensation of the dynamic chromatic aberration of the flexible screen are realized. The defects of dynamic perception, quick response and individual adaptability are overcome.

The invention discloses a color analyzer which is used for filtering stray light entering a detection path and improving the accuracy of a measurement result. The analyzer comprises a lens, an analyzer main body and a cut-off filter, the lens is connected with the analyzer main body, and the analyzer main body is used for detecting a light beam transmitted from the lens; a beam splitting assembly, a light filtering assembly and an analysis module are sequentially arranged in the analyzer body in the light beam transmission direction, and three light filtering positions are arranged in the analyzer body. The three light filtering positions are located between the lens and the beam splitting assembly, between the beam splitting assembly and the light filtering assembly and between the light filtering assembly and the analysis module respectively, and the cut-off light filter is arranged at any light filtering position or arranged in the lens. When the light beam penetrates through the cut-off filter, stray light in the light beam is filtered out by the cut-off filter, and the stray light is one or more kinds of invisible light.

The invention relates to the technical field of visual detection, in particular to a color master batch color detection method and device, computer equipment and a storage medium, and the color master batch color detection method comprises the following steps: obtaining to-be-detected environment data, and obtaining environment illumination intensity and environment illumination direction from the to-be-detected environment data; obtaining the color of a to-be-detected color master batch, obtaining corresponding detection environment requirement data according to the color of the to-be-detected color master batch, and comparing the detection environment requirement data with the environment illumination intensity and the environment illumination direction to obtain an illumination comparison result; adjusting the to-be-detected environment data according to an illumination comparison result, obtaining a color master batch detection image, and performing spectrum detection on the color master batch detection image to obtain a color difference detection result; and analyzing the chromatic aberration detection result, obtaining an abnormal chromatic aberration position according to a corresponding analysis result, and marking according to the abnormal chromatic aberration position. The method has the effect of improving the color detection precision of the color master batch.

The invention relates to the technical field of color measurement, in particular to a color measurement method based on hyperspectral imaging, which comprises the following steps: judging whether the chromatic aberration of a to-be-measured sample needs to be calculated or not, and if the chromatic aberration of the to-be-measured sample needs to be calculated, presetting a standard color value, and acquiring dark background hyperspectral data of the to-be-measured sample based on a hyperspectral imaging device, otherwise, directly acquiring the dark background hyperspectral data of the to-be-measured sample based on the hyperspectral imaging device. According to the method, the dark background hyperspectral data, the reflectivity calibration plate data and the real-time hyperspectral data of the sample are collected and corrected, so that the color measurement precision can be remarkably improved, the interference of an ambient light source and equipment noise is eliminated, the finally obtained standard real-time hyperspectral data is ensured to reflect the real spectral characteristics of the sample to be measured, and the accuracy of color measurement is improved. And the corrected standard real-time hyperspectral data can more accurately reflect the reflectivity spectrum of the sample to be detected, so that the calculation of the color value is more accurate.

The invention relates to the technical field of textile finished product production, in particular to a surface detection machine for textile finished product production, which mainly comprises a workbench, a detection bin fixedly mounted on the top surface of the workbench, a color detector fixedly mounted on the top surface of the detection bin in a penetrating manner, a straightening mechanism arranged above the workbench, and a cleaning mechanism, the sweeping mechanism is arranged on one side of the detection bin and comprises a T-shaped plate located on one side of the detection bin and a blowing mechanism, and the blowing mechanism is arranged on one side of the T-shaped plate. When an arranged T-shaped plate reciprocates, an air bag is extruded through a second fixing block, air in the air bag is sprayed out of a spray head through a communicating pipe, and therefore foreign matter on the surfaces of cloth and a soft brush is blown away, so that the foreign matter is not prone to passing through the soft brush, and it is guaranteed that the foreign matter cannot shield and cover the surface of the cloth; the detection machine which directly irradiates the cloth to evaluate the color accuracy of the cloth can obtain clear and interference-free data, so that the detection accuracy is improved.

The invention provides a printing color consistency automatic calibration and management system and method, and the method comprises the steps: collecting a current environment temperature and humidity ink matching parameter density curve data dot increase compensation parameter in real time through a state detection device, and forming a current state data set; performing similarity analysis on the reference data set and the current state data set by adopting a matching degree evaluation algorithm, and judging a relationship between a matching degree numerical value and a preset threshold value; adjusting and correcting the calibration reference value and the color control parameter in the reference data set according to the offset compensation set to obtain a compensated and adjusted parameter set; on the basis of the compensated and adjusted parameter set, generating update code data by combining a current time identifier and an operator identifier, and forming new two-dimensional code information; and outputting the new two-dimensional code information to a subsequent work order carrier by adopting a code generation module, and establishing a parameter transmission tracing chain.

The invention provides a hydrogen monitoring sensing mechanism and a hydrogen leakage detection device based on RGB color analysis, and belongs to the field of hydrogen leakage detection. The hydrogen monitoring and sensing mechanism is used for collecting a color signal of the hydrogen-sensitive color-changing adhesive tape and converting the color signal of the hydrogen-sensitive color-changing adhesive tape into an electrical signal, and the hydrogen monitoring and sensing mechanism comprises a light source assembly, a photoelectric sensor and an auxiliary monitoring assembly; the light source assembly is used for irradiating the hydrogen-sensitive color-changing adhesive tape; the photoelectric sensor is used for collecting a color signal of the hydrogen-sensitive color-changing adhesive tape and converting the color signal of the hydrogen-sensitive color-changing adhesive tape into an electrical signal; the auxiliary monitoring assembly is used for increasing the effective monitoring area of the hydrogen monitoring sensing mechanism.

The invention discloses a fabric production method capable of randomly changing appearance and functions and a fabric. The fabric production method comprises the following steps: S1, selecting an unmagnetized magnet with the thickness range of 1-30mm and the width of 1-100mm; s2, arranging a magnet matrix and the size according to requirements, customizing a pressing mold, and adjusting parameters to meet the requirements of the front and back effects after the base cloth and the fabric are subjected to hot-pressing compounding; s3, performing composite molding on the magnet and the base cloth fabric by adopting a high-frequency machine or a thermocompression bonding mode; and S4, cutting the composite molded fabric according to requirements, magnetizing magnets in the fabric by using a magnetizer, activating the magnetism of the magnets, and randomly adsorbing and combining the fabric with decorations or products with magnetic attraction or magnetism leading through a magnetic attraction mode of the magnets, so as to realize random appearance and function change. According to the invention, the fabric with a magnet adsorption function can be produced, and a user can replace ornaments or accessories on the fabric at any time according to personal preferences or actual demands, so that the free transformation of the appearance and the function of the fabric is realized.

The invention discloses clothes hanging detection equipment, which comprises a bottom plate, a supporting rod and a top plate, one end of the supporting rod is vertically fixed on the bottom plate, the other end of the supporting rod is fixed on the top plate, and a moving mechanism is mounted on the top plate. According to the garment hanging detection equipment, through the effects of the guide rail, the first motor, the transmission wheel, the conveying belt, the mounting block and the guide wheel, intermittent circulating conveying of the positioning mechanism and garments can be achieved, the whole device can be operated by a single person, the use convenience of the device is improved, and in the moving process of the positioning mechanism, the positioning mechanism can move more stably. When the iron plate moves to be matched and attracted with the magnet, the pressing plate can be separated from the clothes hanger to facilitate disassembly and assembly of the clothes, and when the iron plate moves to be separated from the magnet, the pressing plate can press and limit the clothes on the clothes hanger under the action of the first spring to prevent the clothes from falling off in the moving process to influence normal detection.

The invention discloses a method for dynamically monitoring the drying quality of fruits and vegetables by fusing chromatic aberration-shrinkage rate analysis. The method comprises the following steps: placing a fruit and vegetable sample on a rotatable objective table, drying according to a preset program, and carrying out multi-angle shooting by using a digital camera according to a timestamp to obtain an RGB color image; the method comprises the following steps: preprocessing by an image analysis system, converting an image into a Lab chromaticity space, calculating a chromatic aberration value delta E and a comprehensive shrinkage rate S, integrating data to generate a change curve, and constructing an appearance form model. In actual drying, real-time data and the model are compared, and early warning is carried out when the color difference value exceeds 3.5 or the shrinkage rate deviation exceeds 15% and image acquisition is abnormal. The drying equipment is provided with a high-precision electric rotary objective table, a specific annular light source array, a high-resolution camera and a standard calibration color card, and illumination and color measurement accuracy is ensured through calibration. Through multi-step operation, accurate and dynamic monitoring of fruit and vegetable drying quality is achieved, and drying process optimization is assisted.

To provide a technology that can capture the characteristics of glittering powder and reproduce them as an image with high precision and realism.SOLUTION: An image generation method comprises: a glittering agent information acquisition step for acquiring at least one of optical property information and shape information of glittering powder; a color signal calculation step for calculating a color signal of the glittering powder by applying the optical property information to a three-dimensional reflection property model, which is a mathematical model that describes a light reflection process of the glittering powder; a color value calculation step for calculating a color value of the state in which the glittering powder is applied based on the color signal; and an image generating step for generating an image of the state in which the glittering powder is applied based on the color value and the shape information.SELECTED DRAWING: Figure 1

The invention relates to a color detection method and device. The method comprises the following steps: acquiring a first display area image of a display screen to be detected under a preset display color, and determining a target threshold range corresponding to the preset display color; and determining a coarse detection result according to the target threshold range and the target pixel value of the first display area image in the HSV color space. And determining a fine detection result according to the pixel value of the first display area image in the RGB color space under the condition that the coarse detection result is qualified, determining a color detection result of the display screen to be detected according to the fine detection result, and determining a color detection result of the display screen to be detected according to the coarse detection result under the condition that the coarse detection result is unqualified. Wherein the target threshold range is determined according to a plurality of second display area images of the qualified display screen under a plurality of environment parameters and preset display colors. By adopting the method, the accuracy of color detection can be improved.

The invention discloses a textile test color matching instrument, and relates to the technical field of textile, the textile test color matching instrument comprises a shell, a switching assembly is arranged in the shell close to the rear surface, an adjusting assembly is arranged in the shell, and a linkage assembly is arranged on the outer surface of one side of the shell; according to the color matching instrument for textile testing, in the process of detecting textiles through the color matching instrument, a stepping motor is started, a driving shaft is driven to rotate, meanwhile, an electromagnet is disconnected from an external power source, the driving shaft drives a plurality of illuminating lamps to rotate to the position which is concentric with a light hole, and the colors of the textiles are detected; the electromagnet is disconnected with an external power supply, the driven gear is driven to rotate, then the rotating shaft is driven to rotate, the prism body is adjusted to a required angle, the prism body is indirectly driven to rotate by using the stepping motor, and the two independent power sources are combined into one power source.

The invention discloses a PCB defect detection method and device based on an HSV color space and computing equipment, and the method comprises the steps: carrying out the coordinate correction of a to-be-detected image based on a template image, and obtaining a to-be-detected image annotation file; converting the to-be-detected image annotation file from an RGB channel into an HSV channel to obtain an HSV channel image; extracting an area between the adjacent bonding pads from the HSV channel image, and determining whether the PCB has a short circuit defect according to color distribution of the area between the adjacent bonding pads; comparing the HSV channel image with the tin-deficient color extraction image to determine whether each bonding pad has a tin-deficient defect or not; extracting a copper region in each bonding pad region from the HSV channel image to determine whether each bonding pad has a missing solder defect, a false solder defect and a copper sheet defect; and detecting whether a pin region of which the middle is bright color and the periphery is dark color exists in the middle of each bonding pad region in the HSV channel image so as to determine whether each bonding pad has a kneeling defect. According to the invention, various defects of the PCB can be accurately and comprehensively detected, and the detection efficiency is improved.

An optical lens test platform disclosed by the present invention comprises four symmetrically-arranged supporting legs and a test platform fixedly installed on the upper surfaces of the four supporting legs, a groove is formed in the center of the upper surface of the test platform, a chuck assembly is arranged in the groove, an L-shaped supporting frame is fixedly installed on one side of the upper surface of the test platform, and the L-shaped supporting frame is fixedly installed on the other side of the upper surface of the test platform. An air cylinder is arranged at the bottom end of the end of the L-shaped supporting frame, a light source lamp is arranged at the end of the air cylinder, and the light source lamp is located over the chuck assembly. An optical lens is placed in the center of the surface of the placing table, a servo motor is started, a rotating shaft drives a connecting plate, an arc-shaped connecting rod and a clamping block to move towards the center of the placing table at equal intervals, an electric push rod synchronously stretches out and draws back while the clamping block moves inwards, and therefore the optical lens is clamped; and the distance between the light source lamp and the optical lens is adjusted through the cylinder, thereby facilitating the detection of the optical lens.

The invention provides an LCD display screen production visual angle testing device, and relates to the technical field of display screen visual angle testing. The LCD display screen production visual angle testing device comprises a testing table, a horizontal rotating mechanism is arranged on the testing table, a vertical rotating mechanism is coaxially and fixedly connected to the horizontal rotating mechanism, a display screen is clamped to the vertical rotating mechanism, two sets of deflection restraining mechanisms are arranged on a rotating table and a side skirt edge respectively, and the two sets of deflection restraining mechanisms are arranged on the rotating table and the side skirt edge respectively. One of the two groups of deflection inhibiting mechanisms is vertically arranged, and the other group of deflection inhibiting mechanisms is transversely arranged; the two groups of deflection inhibiting mechanisms respectively apply pulling force to the rotating table and the side skirt edge; the test bench is also provided with a test probe, two groups of deflection inhibition mechanisms on the bottom side of the rotating table are used to apply pulling forces in the axial direction and the radial direction respectively, the axial offset generated in the rotating process of the rotating table is corrected, and the accuracy and the efficiency of a test result are improved.

The invention discloses a color correction method, system and device based on cooperative flight of double unmanned aerial vehicles, a medium and a product, and relates to the technical field of agricultural detection. According to the method, a double-unmanned-aerial-vehicle cooperative flight mode is adopted, one unmanned aerial vehicle (namely the first unmanned aerial vehicle) flies at a high height for aerial photographing, the other unmanned aerial vehicle (namely the second unmanned aerial vehicle) carries a color card to synchronously fly at a low height, multiple farmland images containing the color card are obtained, a color correction matrix is constructed based on the RGB value of the color card in the farmland images and the actual RGB value of the color card, and the color correction matrix is obtained. Color correction under a dynamic illumination condition is realized, the problem of color distortion in a low-altitude remote sensing imaging process of the unmanned aerial vehicle is overcome, the reusability of cross-sensor data is improved, accurate acquisition of crop colors by the unmanned aerial vehicle in a field environment is realized, and reliable data support is provided for accurate crop management.

The invention relates to the technical field of color detection, in particular to a color difference calculation optimization method and system for archaized linen viscose reactive dyeing. Comprising the following steps: monitoring a fabric motion state in real time, calculating a motion speed and displacement, and determining a spectrum acquisition opportunity and a position compensation parameter; illuminating the surface of the to-be-detected fabric at an acquisition position through a polarized light source, and performing polarized spectrum data acquisition in the normal direction of the surface of the fabric to obtain reflection spectrum information; exciting the surface of the to-be-detected fabric by adopting an ultraviolet light source, collecting fluorescence spectrum data, and identifying different fiber areas; calculating fiber density distribution in the fiber area, and constructing a layered weight system; calculating chromatic aberration of the fiber area based on the reflection spectrum information, extracting chromatic aberration characteristics, and measuring and calculating an antique degree quantification result; setting a color difference threshold value standard according to an antique degree quantification result, and adjusting a color difference threshold value according to an evolution trend; and based on the layered weight system and the chromatic aberration threshold, performing weighted calculation on the chromatic aberration value of the fiber region to obtain a comprehensive chromatic aberration evaluation result.

An image forming apparatus includes an image former that prints a color chart on a sheet, an in-line colorimeter that performs color measurement of color patches formed on the color chart, and an image processor that performs color adjustment based on colorimetric values of the color patches formed on the color chart. The image processor combines multiple divided colorimetric data obtained by performing color measurement of color patterns into which a chart is divided, the chart in which color patches are arrayed to be common to the color chart, and obtains colorimetric values of the color patches formed on the color chart from the multiple divided colorimetric data combined.

A method and apparatus for detecting rebar weld beads is provided. [Solution] Applied to a weld bead detection device, the method includes the steps of: acquiring first point cloud data of a detection area, the first point cloud data including a plurality of discrete point data including color values ​​and plane coordinates, determining a plurality of contour points of the weld bead to be detected based on the first point cloud data, obtaining dimensional information of the weld bead to be detected based on plane coordinates corresponding to each of the plurality of contour points, the dimensional information including the length and width of the weld bead to be detected, and determining the weld bead to be detected as a pass weld bead if the dimensional information satisfies a preset condition. This means enables quantitative detection of the weld bead, thereby improving the efficiency of weld bead detection.

The invention provides a garment processing fabric detection device, and relates to the technical field of garment processing. Two conveying rollers which are parallel to each other up and down are rotationally mounted on frame bodies at the two ends of the detection frame respectively, and the conveying rollers are used for conveying fabric to enter from the detection frame and to be sent out from the other end; two twisting rollers are vertically arranged in the middle of the detection rack in a left-right parallel mode, and fabric passing through the conveying roller at one end is twisted to the conveying path at the other end after passing through the twisting rollers and is twisted by 180 degrees. When stretching detection is carried out on fabric in a distorted state, the stretching operation on the fabric in the distorted state is realized through cooperative work of components such as an air cylinder, a connecting plate, a strong magnetic flitch plate, an embedding plate and a magnetic sleeve by utilizing the characteristics of magnetic attraction of magnets, friction force among the components, elasticity of springs and the like, and the fabric can be effectively clamped in the stretching process; the fabric is ensured to be in a required stretching state, and the effectiveness and the accuracy of stretching detection are ensured.

To provide a reinforcing bar weld bead detection method and device.SOLUTION: A method is applied to a weld bead detection device, and includes the steps of: acquiring first point group data of a detection area, wherein the first point group data includes a plurality of discrete point data including a color value and plane coordinates; determining a plurality of contour points of a detection object weld bead on the basis of the first point group data; acquiring dimensional information of the detection object weld bead on the basis of plane coordinates corresponding to each of the plurality of contour points, wherein the dimensional information includes the length and width of the detection object weld bead; and determining the detection object weld bead as a successful weld bead in the case that the dimensional information satisfies a preset condition. The present means enables quantitative detection of a weld bead, and thereby improves the efficiency of detecting the weld bead.SELECTED DRAWING: Figure 2

The present application discloses a feed additive and preparation method for promoting intestinal health of livestock and poultry, which comprises the following steps: S1, adding water to montmorillonite and sodium chloride, stirring evenly to form a suspension slurry with a concentration of 10% to 20%, sodiumizing at room temperature, and re-forming the slurry with water to a concentration of 15% to 40%; S2, slowly adding cetylpyridinium chloride to the slurry of step S1 under stirring, and continuously stirring at room temperature for a certain time; S3, slowly adding carvacrol to the slurry of step S2 under stirring, and continuously stirring at room temperature for a certain time; S4, dehydrating the reaction solution of step S3, and drying the obtained filter cake; the dried filter cake needs to be inspected to see if it is completely dried; S5, crushing to obtain a feed additive for promoting intestinal health of livestock and poultry. Adding 0.1% of the feed additive for promoting intestinal health of livestock and poultry to the diet of laying hens can increase the egg production rate of laying hens by 1.5 percentage points, effectively control spotted eggs, and increase the qualified egg rate by 2 percentage points.

The embodiment of the invention provides an RGB-IR sensor calibration method and device, a storage medium and an electronic device, and the method comprises the steps: obtaining a first calibration matrix containing IR signal residues and a second calibration matrix which filters IR signal residues according to a filtered IR signal of a to-be-calibrated scene and a to-be-calibrated signal containing the IR signal; and obtaining an optimized calibration matrix according to the first calibration matrix and the second calibration matrix so as to calibrate the RGB-IR sensor. Through the method and the device, the problems of poor calibration accuracy and stability and low scene color rendition correctness of the IR filtering filter in related technologies are solved, and the effects of improving the calibration accuracy and stability of the IR filtering filter and improving the scene color rendition correctness are achieved.

The invention discloses a textile washing liquor lossless color detection method based on a visible spectrophotometric technique, which comprises the following steps: step 1, pretreatment: washing a textile in a certain manner, taking out the textile from washing liquor after the washing is finished, cooling the washing liquor to normal temperature, and then centrifuging and / or filtering; step 2, testing the transmittance: testing the transmittance of the washing liquid pretreated in the step 1 in a visible light spectrum range; 3, calculating a tristimulus value of the lotion; and step 4, converting the tristimulus value of the washing liquid into related parameters through a uniform color space chromatic aberration formula. According to the color detection method, the operation process is simple and efficient, errors caused by personnel differences, detection parameters and the like are greatly reduced, more objective detection of the washing liquid color is achieved, the detected liquid is not damaged, and the color detection method has very important value and significance for subsequent color fastness rating from the quantization angle.

The invention relates to the technical field of lamp detection, in particular to an intelligent detection system and method for a lamp. The method comprises the following steps: acquiring brightness distribution information and an environment image information set, analyzing the brightness distribution information based on the environment image information set, and determining environment light mapping information; the environment image information set is analyzed, environment glare influence factors are analyzed and extracted, and a glare influence feature set is determined; analyzing the glare influence feature set based on the ambient light mapping information, and determining glare hidden danger distribution information; and determining and outputting a glare detection report according to the glare hidden danger distribution information. According to the method, the indirect glare risk corresponding to each area in the detection area under the current light condition is quantitatively analyzed, so that the indirect glare generated under the influence of multi-dimensional factors in the detection area can be accurately evaluated, the hidden danger of the glare can be found in time, and the negative influence of the glare on a user is remarkably reduced.

Provided are an optical measurement device, an optical measurement system, and a gamma adjustment method in which a measurement time is shortened.　The optical measurement device measures a light emission characteristic of a specimen, and comprises: a light emission condition acquisition unit that acquires a light emission condition of the specimen from the outside in advance; and a measurement condition setting unit that sets a measurement condition on the basis of the acquired light emission condition.

To provide a foreign body removal method from processed food capable of detecting a foreign object mixed in processed food to support the removal of foreign objects.SOLUTION: The foreign body removal method from processed food is a foreign body removal method from processed food performed by a system that includes a camera for picking out images of transported processed food and a controller capable of communication with the camera. The method includes the steps of: acquiring optical image data picked up by the camera including multiple pieces of wavelength information; detecting an object included in the processed food based on the optical image data; and when determining the object is the object to be removed from the processed food, transmitting the location information of the object to be removed, transport speed information for the processed food, and a control command that requests the object to be removed in association with each other to a removal device that executes the removal of the object to be removed included in the processed food.SELECTED DRAWING: Figure 6