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294results about "Method using image detector and image signal processing" patented technology

Gas detection method, device and system based on galvanometer scanning

The invention provides a gas detection method based on galvanometer scanning, and the method comprises the following steps: obtaining a visible light image of a to-be-detected region collected by a visible light imaging module, processing the visible light image based on a pre-trained semantic segmentation model, and obtaining a background category matrix; acquiring gas concentration information of each scanning point obtained by scanning the to-be-detected area by the galvanometer laser telemetering assembly, wherein the galvanometer laser telemetering assembly is registered with the visible light imaging module in advance; and acquiring a background category corresponding to each scanning point according to the background category matrix, and correcting a gas concentration signal of the point based on a background correction coefficient associated with the background category. According to the gas detection method, the problems of false detection and the like caused by factors such as unknown background reflectors and unknown detection object types in the existing galvanometer scanning gas detection are effectively solved, and the accuracy of gas concentration detection is improved.
Owner:HENAN HANWEI ELECTRONICS

Material analysis method

In one aspect, the present disclosure relates to a material analysis method which may comprise the steps of: (a) preparing a specimen for structure analysis; (b) training an artificial intelligence model with a training image labelled with a structure aspect of an arbitrary specimen; (c) analyzing a plurality of analysis images not labelled with a structure aspect of a specimen using the trained artificial intelligence model, and removing analysis images classified into preset noise structure aspects; and (d) analyzing, by using the trained artificial intelligence model, the analysis images from which the analysis images classified into the noise structure aspects have been removed, and classifying the analysis images into at least one target structure aspect.
Owner:HYUNDAE STEEL CO LTD

Coarse cereal aflatoxin detection method based on combination of hyperspectral imaging and deep learning

The invention discloses a coarse cereal aflatoxin detection method combining hyperspectral imaging and deep learning, and belongs to the field of agricultural product quality safety detection. The method comprises the following steps: firstly, acquiring hyperspectral imaging data of coarse cereal grains, extracting space and spectral information, forming basic data, and performing preprocessing, space-time registration and feature alignment; building a hyperspectral space-spectrum double-branch feature fusion convolutional neural network deep learning model, and importing the processed data to complete iterative training; and finally, performing same-standard data acquisition and processing on to-be-detected coarse cereals, importing the trained model, and realizing aflatoxin detection and pollution area positioning through pixel-level analysis. According to the method, deep fusion of space and spectral features is realized, the detection accuracy and generalization ability are effectively improved, the detection result is stable, reliable and traceable, and the fine detection requirement of aflatoxin in coarse cereals is met.
Owner:CHENGDU VOCATIONAL COLLEGE OF AGRI SCI & TECH

Prediction method for corrosion rate of natural gas pipeline

The invention relates to a method for predicting the corrosion rate of a natural gas pipeline, in particular to the field of natural gas pipeline corrosion prediction.The high-precision dynamic early warning is achieved through the four-step cooperative technology, firstly, visible light and radar data are fused to generate a three-dimensional corrosion base film fully covering the pipeline, and blind areas caused by the complex environment are effectively eliminated; secondly, speculating corrosion probability distribution of a shielding area based on a physical constraint generative adversarial network, and solving a hidden area prediction problem; then, in combination with the stress field and historical data, deducing a space-time diffusion path of corrosion through a graph neural network, and outputting a future corrosion thermodynamic diagram; and finally, dynamically adjusting model parameters according to actually measured data to form a corrosion risk decision matrix of closed-loop optimization, thereby realizing the transformation of pipeline corrosion from passive protection to intelligent prevention in a breakthrough manner.
Owner:CHINA SPECIAL EQUIP INSPECTION & RES INST +1

A method, system, device and medium for automatically identifying a point source emission of greenhouse gas

This invention discloses an automatic identification method, system, device, and medium for greenhouse gas point source emissions, relating to the field of environmental monitoring technology. The method includes: acquiring a greenhouse gas emission inventory and satellite remote sensing data of the area to be monitored; performing initial screening of emission sources based on the greenhouse gas emission inventory to determine preliminary greenhouse gas sources; retrieving a greenhouse gas concentration distribution map using the satellite remote sensing data, and employing a Mask R-CNN model to perform target detection and pixel segmentation on the greenhouse gas concentration distribution map to determine greenhouse gas plumes; the greenhouse gas plumes include specific locations and shapes; performing quantitative analysis of the greenhouse gas plumes using the IME algorithm, and combining this with the preliminary screening of greenhouse gas sources to determine the final emission sources. This invention can improve the accuracy and real-time performance of greenhouse gas emission source identification.
Owner:ZHEJIANG UNIV

Defect detection method based on spectral imaging and related equipment

The embodiment of the invention provides a defect detection method based on spectral imaging and related equipment, and the method comprises the steps: carrying out the image collection of a to-be-detected transparent medium through a line light source and a spectral camera, and obtaining a clear spectral image set; performing calculation according to the spectral image set, and determining a plurality of regions of interest on the transparent medium to be detected according to a calculation result; calculating according to the spectral feature extraction results of each region of interest under a plurality of feature analysis wavebands, and determining a test value corresponding to each region of interest; and performing judgment according to the test value corresponding to each region of interest and a preset judgment threshold value corresponding to the transparent medium to be detected, and determining a defect detection result of the transparent medium to be detected. According to the embodiment of the invention, the region of interest can be selected for analysis, and the specific feature analysis wave band is selected for spectral feature analysis, so that the surface defects and smudginess of the transparent medium can be effectively distinguished. The method can be widely applied to the technical field of defect detection.
Owner:广州光信科技有限公司

Insect migration monitoring system and method

An insect monitoring system for luring and capturing insects including a digital camera with dual UV and white LEDs and a processor configured to acquire visual insect data to recognize insect species in conjunction with previously tagged insect groups; and evaluate insect migration and / or dispersion within a habitat range. A method utilizing UV tagging mechanisms for monitoring and predicting insect migration and / or dispersion including providing insect monitoring stations for collecting data indicative of a previously tagged insect groups' presence within a habitat range, providing the data to a server, retrieving previously received data, and determining a change in the data to provide historical, real-time, and predictive information to a user.
Owner:NGUYEN MY T +1

Device and method for analyzing coffee particles

Provided in the present application are an analysis method and device for coffee particles. The device comprises: a vibration source configured to drive the coffee particles to vibrate at least twice; a camera configured to respectively capture images of the coffee particles after the at least two vibrations, obtaining a to-be-detected image set containing images of coffee particles with different distributions; one or more processors communicatively coupled to the camera; and a memory storing instructions executable by the one or more processors, wherein the instructions, when executed by the one or more processors, cause the one or more processors to: acquire initial recognition information of the coffee particles in each to-be-detected image of the to-be-detected image set; determine final recognition information of the coffee particles based on the initial recognition information of the coffee particles in at least some frames of to-be-detected images in the to-be-detected image set.
Owner:SHENZHEN DIGITIZING FLUID TECH CO LTD

Methods for physical expansion and imaging of biological samples

Methods and systems for physical expansion and imaging of biological samples are described herein. In one aspect of the disclosure, a method for preparing a biological sample for the purpose of generating images of its ultrastructure with an imaging instrument includes a) physically expanding the sample by at least a factor of two in at least one dimension; and b) bulk labeling a plurality of components of the sample with at least one reagent to introduce contrast.
Owner:YALE UNIVERSITY

Geological sketching method for tunnel faces based on image spectrum technology, and system thereof

An image spectrum technology-based geological sketching method, including: based on collected image-spectrum data information of a tunnel face, extracting mineral end members and spectrum to determine types and contents of minerals, extracting texture features and feature waveband spectrums to determine stratum lithology, extracting crack features and identifying crack fillers to obtain a crack identification result; obtaining degrees of crushing of surrounding rocks according to numbers and relative areas of cracks; analyzing weathering variation proportions of minerals according to stratum lithology and mineral analysis result for surrounding rocks, acquiring color differences between different degrees of weathering according to spectral color difference identification results, obtaining degrees of weathering of the surrounding rocks; identifying water outflow form and water outflow position of tunnel face to be detected; and obtaining a geological sketch map for the tunnel face by performing labeling and summarization by using different labeling symbols according to the results.
Owner:SHANDONG UNIV

A Virtual Simulation-Based Analysis Method and System for Autonomous Collaborative Management of Unmanned Aerial Vehicle (UAV) Swarms

This invention provides a method and system for autonomous collaborative analysis of drone swarms based on virtual simulation, relating to the field of electronic digital data processing technology. By deploying monitoring points along the boundary line of the fire target area and using reconnaissance drones to collect thermal radiation response parameters of target plants in real time, a fire prediction model is established. The fire prediction model provides optimization strategies for task allocation and path planning for the drone swarm. At the same time, through the construction of a virtual simulation environment and parameter calibration, the fire prediction model is effectively verified and improved, thereby enhancing the overall efficiency of drone swarms in fire monitoring and response.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Method, apparatus, device and computer-readable storage medium for analyzing coffee particles

This application provides a method, apparatus, device and computer-readable storage medium for analyzing coffee particles. The method includes: controlling a vibration source to drive coffee particles to vibrate at least twice, collecting images of the coffee particles after at least two vibrations to obtain a set of test images of coffee particles having different distributions; obtaining initial identification information of coffee particles in each test image in the set of test images; and determining final identification information of the coffee particles based on the initial identification information of coffee particles in at least some of the frames of the test images in the set of test images.
Owner:SHENZHEN DIGITIZING FLUID TECH CO LTD

Method for analyzing bio-substance

A bio-substance analysis method using a sensing substrate having a fluid channel is disclosed. The method includes mixing retroreflective particles with a detection solution containing a target bio-substance, wherein a first bio-recognition substance selectively reacting with the target bio-substance is modified on the retroreflective particles; placing the sensing substrate so that a bottom is located under a cover in a direction of gravity; injecting the detection solution containing therein the retroreflective particles into a fluid channel and maintaining the solution in the channel for a first time duration; turning the sensing substrate upside down so that the bottom is located above the cover in the direction of gravity and maintaining the sensing substrate in the turned state for a second time duration; irradiating light into the fluid channel through the bottom; and generating and analyzing an image based on light retroreflected from the retroreflective particles.
Owner:AJOU UNIV IND ACADEMIC COOP FOUND

Information processing device, information processing method, and program

An information processing device includes: an acquisition unit that acquires a first image and a second image captured by an imaging unit mounted on a moving body in different frames; a registration unit that performs registration of the first image and the second image; and a difference calculation unit that calculates a difference between the registered first image and the registered second image. The registration unit generates a plurality of third images by shifting the second image in a first direction, and calculates, for each of the third images, a first sum of the differences in brightness values for each pixel between the first image and each of the third images.
Owner:MITSUBISHI HEAVY IND LTD

Gamma-ray spectrum-based variable rate fertilization prescription map generation method and system

The invention relates to the technical field of precision agriculture, and provides a variable rate fertilization prescription map generation method and system based on a gamma-ray energy spectrum. The method comprises the following steps: acquiring field data through a gamma-ray energy spectrometer, a soil sensor and remote sensing equipment, and predicting spatial distribution of available nutrients in soil by adopting feature fusion and a machine learning model; calculating a target yield fertilization amount based on a nutrient balance method; calculating the fertilizer shortage corrected by the soil texture; carrying out weighted fusion on the graded fertilization amount and the economic optimal fertilization amount to generate a recommended fertilization amount and making a prescription map; precise fertilization control is realized through a positioning and control algorithm in combination with feed-forward compensation or a Smith predictor; and an active learning strategy is adopted to identify a high-uncertainty region, and verification is preferentially carried out to continuously optimize the model. According to the method, soil spatial variation, crop requirements and economic benefits are integrated, accurate fertilization recommendation is realized, the fertilizer utilization rate is effectively increased, and the economic benefits are guaranteed.
Owner:HEBEI XIONGAN BAIZE INFORMATION TECHNOLOGY CO LTD

Method and system for providing rebar arrangement state based on computer vision

The present invention provides a method for providing a rebar arrangement state, which provides an arrangement state for a plurality of rebars by inputting a rebar image to a pre-trained space detection model to estimate mask regions corresponding to spaces between the plurality of rebars to obtain a plurality of mask regions, classifying the plurality of mask regions into a similar group and a unsimilar group on the basis of similarity in size between the plurality of mask regions, and displaying the plurality of mask regions corresponding to at least one of the similar group or the unsimilar group in the rebar image.
Owner:KYUNGPOOK NAT UNIV IND ACADEMIC COOP FOUND

Extreme ultraviolet laminated diffraction imaging method based on iterative frequency mask

The invention discloses an extreme ultraviolet laminated diffraction imaging method based on an iterative frequency mask. Comprising the steps that an extreme ultraviolet coherent light source is used for scanning and irradiating a to-be-reconstructed target, and diffraction intensity patterns of all scanning positions are collected; obtaining an initial probe function and an initial reconstruction target function according to the position information of all the scanning positions and the diffraction intensity pattern; meanwhile, an auxiliary variable tensor, a Lagrange multiplier tensor and an adaptive learning rate are initialized; constructing a multi-level spatial frequency mask; according to diffraction intensity patterns of all scanning positions, a multi-level spatial frequency mask is used for updating the probe function step by step from low frequency to high frequency, a target function, an auxiliary variable tensor and a Lagrange multiplier tensor are reconstructed, and the obtained optimal probe function and the optimal reconstruction target function serve as reconstruction results. The method has remarkable advantages in the aspects of reconstruction quality, convergence speed and robustness to low lamination rate and high noise environment, and has important application value for lamination diffraction imaging.
Owner:ZHEJIANG UNIV

Substrate processing apparatus and substrate processing method

This invention provides a substrate processing apparatus and method capable of accurately determining the processing liquid within a drain section. The substrate processing apparatus (100) includes a chamber (112), a substrate holding section (120), a processing liquid supply section (130), a drain section (190), at least one near-infrared light source (140), a near-infrared camera (150), and a control section (102). The substrate holding section is housed within the chamber. The substrate holding section holds a substrate (W). The processing liquid supply section supplies various processing liquids to the substrate at different timings. The drain section drains the various processing liquids out of the chamber. At least one near-infrared light source irradiates an area (AR1) containing at least a portion of the drain section using near-infrared light. The near-infrared camera captures images of the various processing liquids within the drain section irradiated by near-infrared light and generates captured images. The control section determines the type of processing liquid within the drain section based on the captured images.
Owner:SCREEN HOLDINGS CO LTD

Tea tree nitrogen nutrition diagnosis method based on unmanned aerial vehicle multi-source remote sensing

The invention relates to a tea tree nitrogen nutrition diagnosis method based on unmanned aerial vehicle multi-source remote sensing. The method comprises the following steps: S1, setting a gradient nitrogen application experiment; s2, collecting tea tree shoot samples, and measuring biomass and nitrogen content data of overground parts; collecting and preprocessing tea tree canopy remote sensing data; s3, constructing a critical nitrogen dilution curve, and calculating to obtain a nitrogen nutrition index NNI; s4, constructing a multi-source fusion feature set; s5, performing feature optimization selection on the multi-source remote sensing fusion feature set; s6, taking the optimal subset in S5 as input, taking the NNI in S3 as output, training an NNI estimation model by utilizing a machine learning algorithm, and selecting and determining an optimal estimation model through model precision; s7, performing inversion and spatial mapping on the tea garden NNI, and performing nitrogen nutrition status diagnosis according to the NNI value; and S8, topdressing the nitrogen fertilizer in a flat cabinet for the diagnosed nitrogen-deficient area. The method can realize large-area, lossless and rapid diagnosis of the nitrogen condition of the tea garden, guide variable fertilization, save fertilizer and increase yield, and has remarkable environmental protection benefits.
Owner:QINGDAO AGRI UNIV

Test device, assembly, and method

Analyte testing devices, assemblies, methods, operations, and systems are shown and described. In a lateral flow reader to generate a test result from an assay when contacted with a sample and having a camera multiplexer circuit and a host controller. An assembly includes an interface connector; a self-contained optics module having a microcontroller in electrical communication with the interface connector and a host controller. Typically, an optical imaging device being in communication with an interface connector but independent of a microcontroller.
Owner:CHARM SCIENCES INC

Device for evaluating oil film formed on surface of solution

The present invention relates to an apparatus for evaluating an oil film formed on a surface of a solution contained in a container, the apparatus comprising: a light source that irradiates light; an optical element that reflects the irradiated light to a surface of the solution and transmits the light reflected from the surface of the solution; an image sensor that captures a surface image of the solution that has passed through the optical element; and a control unit that evaluates a portion where the oil film is formed in the surface image of the solution captured by the image sensor.
Owner:LG CHEM LTD

Systems and methods for reducing channel crosstalk in fluorescence microscopy.

This specification provides methods and systems for crosstalk reduction, such as removing crosstalk interference from a microscope image signal, in order to reconstruct an intended image from an image signal. In one example, the method includes determining a weighted interference signal of a microscope image by determining a weighting constant of the weighted interference signal that provides minimum variance; removing the weighted interference signal from the whole signal; and determining the intended image signal based on the removal of the weighted interference signal from the whole signal.
Owner:ARACELI BIOSCIENCES INC

Material analysis method

The present invention relates to a material analysis method, which may comprise the steps of: (a) preparing a sample for structural analysis; (b) training an artificial intelligence model by using a training image marked with structural characteristics of any sample; (c) analyzing a plurality of to-be-analyzed images with unlabeled sample structure characteristics by using the trained artificial intelligence model, and removing the to-be-analyzed images classified as preset noise structure characteristics; and (d) using the trained artificial intelligence model to analyze the remaining to-be-analyzed images after the to-be-analyzed images classified as the noise structure characteristics are removed, and classifying the remaining to-be-analyzed images as at least one target structure characteristic.
Owner:HYUNDAE STEEL CO LTD

Optical coherence tomography apparatus, optical coherence tomography method, and recording medium

An optical coherence tomography apparatus generates a tomographic image of measurement target based on an interference signal generated by synthesizing reflected light of measurement light reflected in the measurement target with reference light. The optical coherence tomography apparatus includes: a first mirror reflecting the reflected light of the measurement light reflected deep in the measurement target to a first direction for synthesis with the reference light and causing the measurement light to scan the measurement target by rotation with a first axis as an axis of rotation; and an image capturer capturing an image of a surface of the measurement target by using object light that is visible light emitted from the surface of the measurement target. The first mirror is fixed in an orientation for reflecting the object light to a direction of the image capturer in a case where the image capturer is in an image capture state.
Owner:CASIO COMPUTER CO LTD

Automatic imaging system, automatic imaging method, program, and computer-readable recording medium having program stored therein

The invention provides an automatic imaging system, an automatic imaging method, a program, and a computer-readable recording medium storing the program. The automatic imaging system, the automatic imaging method, the program and the computer-readable recording medium can carry out image shooting of high-quality waste materials without worrying about image blurring at any position in the conveying process of the waste materials. The automatic image capturing system (1) automatically captures an image of the waste material (S) that has been transported and moved by the transport means (50). An automatic imaging system (1) is provided with: an imaging device (30) that captures an image of waste (S); a movement speed detection means (10) for detecting the movement speed of the scrap (S); and a control device (20) that determines whether or not the moving speed of the waste (S) detected by the moving speed detection means (10) is equal to or less than a predetermined value, and performs control so that the imaging device (30) images the waste (S) when it is determined that the moving speed of the waste (S) is equal to or less than the predetermined value.
Owner:JFE STEEL CORP

Methods, systems and kits for in-pen assays

Methods, systems and kits are described herein for detecting the results of an assay. In particular, the methods, systems and devices of the present disclosure rely on a difference between the diffusion rates of a reporter molecule and an analyte of interest in order to quantify an amount of analyte in a microfluidic device. The analyte may be a secreted product of a biological micro-object.
Owner:BRUKER SPATIAL BIOLOGY INC