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159results about How to "The processing result is accurate" patented technology

Intelligent electrical equipment environment monitoring system based on cloud computing and big data analysis

The invention discloses an intelligent electrical equipment environment monitoring system based on cloud computing and big data analysis. The system comprises a cloud server, an intelligent master control device, monitoring devices and communication equipment communicating with the cloud server, wherein the monitoring devices are used for acquiring related data of an electrical equipment environment and transmitting the data to the intelligent master control device; the intelligent master control device is used for controlling the monitoring devices and transmitting the data received from the monitoring devices to the cloud server; the cloud server is used for receiving and storing the related data of the electrical equipment environment; a user accesses the cloud server through a mobile phone or a computer and then controls the master control device and the monitoring devices remotely. The system depends on cloud computing to perform big data analysis on online meteorological information, real-time data and historical data, intelligently monitors the monitoring devices of all nodes, evaluates the monitoring effectiveness, analyzes potential risks effectively and solves problems by which people are puzzled for many years about outdoor electrical equipment microenvironments, online micrometeorology monitoring, real-time intelligent control and the like.
Owner:JIANGSU LIDE INTELLIGENT MONITORING TECH CO LTD

Image foreground and background segmentation method, image foreground and background segmentation network model training method, and image processing method and device

The embodiment of the invention provides an image foreground and background segmentation network model training method, an image foreground and background segmentation method, an image processing method and device, and a terminal device. The image foreground and background segmentation network model training method comprises the following steps: obtaining the eigenvectors of a sample image to be trained; performing convolution on the eigenvectors to obtain the convolution results of the eigenvectors; magnifying the convolution results of the eigenvectors; determining whether the magnified convolution results of the eigenvectors satisfy the convergence conditions or not; if so, completing the training of the convolutional neural network model used for segmenting the foreground and background of the image; and if not, adjusting the parameters of the convolutional neural network model according to the convolution results of the amplified eigenvectors and performing iteration training on the convolutional neural network model according to adjusted parameters of the convolutional neural network model until the convolution results satisfy the convergence conditions. By means of the image foreground and background segmentation network model training method, the training efficiency of the convolutional neural network model is improved, and the training time is shortened.
Owner:BEIJING SENSETIME TECH DEV CO LTD

Plastic bottleneck excess material detecting method and device based on machine vision

The invention discloses a plastic bottleneck excess material detecting method and device based on machine vision. Detection objects are semitransparent and nontransparent plastic bottle products formed by hollow blow molding, and a detection defect type is excess materials in bottlenecks. The method comprises the following steps of: conveying molded plastic bottles to a detection station by a conveying device, and lighting up light sources through a position sensor, and triggering cameras to photograph; establishing an imaging system according to appropriate light sources, cameras and distances between the light sources and the plastic bottles and between the cameras and the plastic bottles, wherein the image effect only highlights details in the bottlenecks and shields the interference of other details; transmitting images to a computer, and determining whether excess materials are in the bottles through image processing software; and removing bottles with excess materials, and recording the removed bottles. According to the invention, whether excess materials exist in plastic bottlenecks can be detected rapidly and accurately on line; and the plastic bottleneck excess material detecting method and device based on machine vision have the characteristics that the imaging scheme can highlight details in bottlenecks, so that the subsequent image processing method is simple, the computation is less, and moreover, the whole detection system is high in stability.
Owner:SOUTH CHINA UNIV OF TECH

Synthetic aperture radar target detection method based on curvelet transformation and Wiener filtering

The invention belongs to the signal and information processing technology field and relates to a target detection method of combining a curvelet transformation theory, statistical parameter estimation, Wiener filtering and a synthetic aperture radar image characteristic. The method is characterized by through curvelet transformation decomposition, acquiring a plurality of decomposition scales; on each decomposition scale, providing different direction information and setting a direction of each scale; making an influence of noise reach a minimum through sampling filtering twice; taking a low false alarm probability to detect abundant target information. Compared to the prior art, by using the method, there are the following advantages that a defect that a small target, a weak scattering target and a hidden target is not easy to detect is effectively overcome through double filtering; an influence of speckle noise is reduced; a signal to noise ratio of a SAR image is increased; the curvelet transformation is selected to carry out processing on the SAR image so that a processing result is accurate; de-noise processing is performed on the image and enhancement processing is performed on a characteristic so that a detection rate of a target is increased; a false alarm probability of the target is low and a high anti-false-alarm capability is possessed.
Owner:PLA SECOND ARTILLERY ENGINEERING UNIVERSITY

Piece goods blemish detecting method based on morphological analysis

ActiveCN103456021AClear structureAccurate and simple structureImage analysisGray levelPower transform
The invention discloses a piece goods blemish detecting method based on morphological analysis. The piece goods blemish detecting method comprises the steps that a line-scan digital camera is used for conducting image collection on piece goods in motion, the distance of adjacent tissue points of the piece goods is obtained by conducting basic brightness stretching and binaryzation processing on gray level images of the piece goods, and the distance serves as the reference value of the size of structural elements; then, morphological close operation is conducted, filling is conducted on common weaving point gaps, the number of the weaving points at a blemish position is small and the weaving points at the blemish position are irregular, so that the weaving points stand out in brightness; at least, binaryzation processing is conducted on the images, determining of the threshold of the images is controlled through gamma training selecting of gray level power transform, blemished binary images are counted and marked, blemish information is output, and the blemish detecting process of the piece goods is completed. The piece goods blemish detecting method based on morphological analysis is more accurate and simpler in structure, and improves the calculation speed; can weaken the interference of background brightness unevenness; brings convenience to realization of automatic detection.
Owner:SUZHOU UNIV

Method of laser processing of a metallic material with high dynamic control of the movement axes of the laser beam along a predetermined processing path, as well as a machine and a computer program for the implementation of said method

A method of laser processing of a metallic material is described by means of a focused laser beam having a predetermined transverse power distribution on at least one working plane of the material, comprising the steps of:providing a laser beam emitting source;leading the laser beam along a beam transport optical path to a working head arranged in proximity to the material;collimating the laser beam along an optical axis of propagation incident on the material;focusing the collimated laser beam in an area of a working plane of the material; andconducting the focused laser beam along a working path on the metallic material comprising a succession of working areas,wherein the laser beam is shaped:by reflecting the collimated beam by means of a deformable controlled surface reflecting element having a plurality of independently movable reflection areas, andby controlling the arrangement of the reflection areas to establish a predetermined transverse power distribution of the beam on at least one working plane of the metallic material as a function of the area of the current working plane and / or of the current direction of the working path on the metallic material.
Owner:ADIGE SPA

Method for determining natural wetland restoration plan based on remote sensing images and GIS (geographic information system) spatial analyses

The invention discloses a method for determining a natural wetland restoration plan based on remote sensing images and GIS (geographic information system) spatial analyses, relates to the method for determining the natural wetland restoration plan, and solves the problems that a conventional natural wetland restoration plan rather focuses on analyses of positioning than researching from a quantitative angle and combining with a GIS spatial analysis technology sufficiently. The method includes steps of 1), acquiring initial data and unifying the same; 2), utilizing the initial data to calculate landscape structure factors, DEM (digital elevation model) data to calculate humidity index and NPP (net primary product) data to divide cultivated land productivity grades; 3), subjecting the landscape structure factors, rivers / roads / density data, terrain data, the humidity index and the cultivated land productivity level acquired in the step 2) to grading, and a wetland to restoration evaluation; 4), determining the wetland restoration plan combined with the GIS spatial analyses and according to wetland restoration evaluation results acquired in the step 3). The method is widely applicable to determination of large-scale wetland restoration plans.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Primary sorting and grading equipment for apples

ActiveCN109158336AImaging effect and processing results are accurateIncrease added valueSortingCcd cameraPush out
The invention relates to the field of agricultural equipment and particularly discloses primary sorting and grading equipment for apples. The equipment comprises a feeding device, a conveying device,an image acquisation device and a grading device, wherein the image acquisition device comprises a camera obscura which is fixed on a belt conveyer rack; through holes through which a conveyer belt ofa belt conveyer penetrates are respectively formed in side walls on both sides of the camera obscura; a plurality of halogen lamps in annular direction and a plurality of first CCD (Charge Coupled Device) cameras are arranged on the top wall inside a camera obscura cavity; a plurality of first CCD cameras in annular distribution and second CCD cameras in a middle position are positioned on the top wall inside the camera obscura cavity; the grading device comprises an image acquisition card, a computer and a plurality of hydraulic cylinders for executing grading instructions of the computer; telescopic ends of the hydraulic cylinders all face to the conveyer belt direction of the belt conveyer; push plates for pushing out apples on the belt conveyer are fixedly distributed at the telescopic ends. By adopting the equipment, harvested apples can be rapidly and accurately graded, then additional values of the apples can be increased, and furthermore the market competitiveness can be improved.
Owner:HENAN UNIV OF SCI & TECH
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