Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

559results about "Method using image detector and image signal processing" patented technology

River and lake water quality monitoring method based on high-resolution satellite images

The invention discloses a river and lake water quality monitoring method based on high-resolution satellite images. The river and lake water quality monitoring method comprises satellite image radiometric calibration, atmospheric correction, RPC orthographic correction, image splicing, automatic water body extraction, water quality quantitative inversion modeling, water quality quantitative inversion model precision verification and water quality quantitative inversion model application. The invention relates to the technical field of inland water environment remote sensing science, in particular to a river and lake water quality monitoring method based on a high-resolution satellite image, which has the advantages of wide monitoring range, high speed, low cost and convenience in long-termdynamic monitoring by utilizing a remote sensing technology. A multiple linear regression model between different water quality parameter concentrations and image waveband reflectivity is establishedby combining sampling data of a water quality monitoring station and representation of various substances in a water body on a remote sensing image, and a relative error and an absolute error of themodel are calculated according to an inversion result, so as to promote the model, and water quality evaluation of the whole river and even a water area with a larger range is achieved.
Owner:山东锋士信息技术有限公司

Online monitoring device for ablation structure morphology and product and monitoring method of online monitoring device

The invention discloses an online monitoring device for ablation structure morphology and products and a monitoring method of the online monitoring device. According to the online monitoring device, an X-ray emitting/receiving device is adopted to acquire a micro structure image of a test part; a high resolution CCD (Charge Coupled Device) camera is adopted to acquire a surface morphology image ofthe test part; an infrared thermometer together with a red light channel and a green light channel of the CCD camera is adopted to acquire temperature distribution of a whole field; a high spectrum camera is adopted to acquire a spectrum image of the test part; a control and image processing unit is adopted to acquire evolution situations of micro structures of the test part in the ablation process, ablation liquid droplet generation flowing and fusion situations, and real-time precise monitoring on ablation product components and distribution, whole-field temperature distribution on the surface of an object is synchronously acquired, and influence of thermal radiation to spectrum information is eliminated. By adopting the technique, analysis on the relationships among ablation micro structures, surface liquid droplets, ablation temperatures and ablation products is achieved.
Owner:TSINGHUA UNIV

Water regimen monitoring system

The invention relates to a water regimen monitoring system which comprises a measuring pipe, a video collecting module and an image processing module, wherein a lower port of the measuring pipe enters a water surface; a camera is arranged right above an upper port of the measuring pipe and is used for shooting water surface images in the measuring pipe; the video collecting module is connected with the camera and is used for converting collected images to digital images; the image processing module is connected with the video collecting module and stores first sample data; gray values of various water qualities are recorded in the first sample data; the image processing module is used for performing gray processing on the digital images so as to obtain the gray values of the water surface images; and the gray values are compared with the first sample data to obtain water quality conditions. According to the water regimen monitoring system, the corresponding conditions of the water quality can be obtained by the water surface images. The water regimen monitoring system is simple, can be used for carrying out convenient and fast water quality measurement or prejudgment conveniently in the open air or without water quality test conditions, and does not need complex steps.
Owner:HOHAI UNIV

River water quality monitoring method based on high resolution remote sensing satellite

A river water quality monitoring method based on a high-resolution remote sensing satellite comprises the following steps: the high-resolution remote sensing satellite acquires a high-resolution remote sensing image a of a river to be monitored from a ground station, and transfers the digital topographic map of the region of the river to be monitored; a preprocessing module preprocesses the high-resolution remote sensing image a to obtain n high-resolution remote sensing images c of the image capable of displaying the complete river to be monitored at different wavebands; a controller performsregression analysis on the actual mass concentration of each reference position point and the reflectivity of each reference position on the high-resolution remote sensing images c to obtain a corresponding regression equation, and establishes a relationship function between the actual mass concentration of every reference position point and the reflectivity at every reference position on every high-resolution remote sensing image c based on the regression equation with a smallest dispersion degree; and the controller calculates the reflectivity of a monitoring point on each of the n high-resolution remote sensing images c, and calculates the water quality parameter mass concentration at the monitoring point according to the relationship function.
Owner:浙大正呈科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products