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41results about How to "Improve preprocessing speed" patented technology

Image enhancement and binaryzation method for photoprint file

The invention discloses an image enhancement and binaryzation method for a photoprint file. The image enhancement and binaryzation method for the photoprint file comprises the following steps of step one, graying input color images and obtaining graying images; step two, obtaining edge gradient of a regional image block which is corresponding to every pixel point through Sobel horizontal and vertical operator; step three, performing weight fusion improvement and LC regional enhancement and obtaining a weight fusion regional contrast value for every pixel point; step four, enabling the weight fusion regional contrast value for every pixel point to serve as a pixel value of the corresponding pixel point to obtain enhancement images of the input images. According to the image enhancement and binaryzation method for the photoprint file, the existing LC algorithm is performed on weight fusion improvement by improving the existing regional enhancement algorithm, the provided image enhancement algorithm is prior in effect compared with the existing file image enhancement and binaryzation method, has a good time performance and further improves the image preprocessing speed, and compared with the prior art, the image enhancement and binaryzation method is simple in parameter adjustment and the achievement process is simple and easy to operate.
Owner:CENT SOUTH UNIV

NURBS curve interpolation fast pre-reading processing method based on advance-retreat method

ActiveCN107272597AQuickly and accurately preprocess informationEasy to identifyProgramme controlComputer controlForward lookingComputer science
The invention provides a NURBS curve interpolation fast pre-reading processing method based on an advance-retreat method. The method is characterized in that fast dispersion is carried out on a curvature smooth area of a curve through the advance-retreat method to enable parameter step increment to change quickly, and the number of curve points needing to be processed in the pretreatment process is reduced, and meanwhile, a velocity sensitive region is detected; and a curvature radius calculating function serves as an objective function, and a curvature radius minimum point of the velocity sensitive region is found through a step-length acceleration method, thereby enhancing identification and analysis processing speed of the velocity sensitive region in the forward-looking processing process and realizing fast forward. The method comprises the following specific steps: carrying out fast recognition of the velocity sensitive region through the advance-retreat method; obtaining a curvature extremum value approximation point of the velocity sensitive region; and correcting the curvature extremum value point of the velocity sensitive region, processing being finished. The method greatly reduces the number of points needing to be processed in the pretreatment process, and greatly improves real-time performance of the forward pretreatment process.
Owner:FUJIAN UNIV OF TECH

Molecularly imprinted magnetic microspheres for triazole pesticides and application of molecularly imprinted magnetic microspheres

The invention relates to the field of pesticide residue extraction and detection methods, in particular to molecularly imprinted magnetic microspheres for triazole pesticides and an application of themolecularly imprinted magnetic microspheres. The magnetic microspheres are prepared with a method comprising steps as follows: 1), Fe3O4 magnetic nanoparticles are prepared with a coprecipitation method, surfaces of the Fe3O4 magnetic nanoparticles are modified with propenyl, and propenyl treatedFe3O4 magnetic shells are obtained; 2), molecularly imprinted polymers capable of recognizing triazolepesticide molecules are synthesized on the surfaces of the propenyl treated Fe3O4 magnetic shells, and the molecularly imprinted magnetic microspheres are obtained. With adoption of a surface imprinting technique, the self-made functional magnetic nanoparticles are taken as carriers for preparation of the magnetic molecularly imprinted nano polymers, an MI-MDSPE-LC-MS / MS method for the triazole pesticides is established on the basis of a magnetic separation technology, synchronous detection of 20 triazole pesticides in a cucumber substrate is realized, so that solid-phase extraction time andcost are saved, and pretreatment speed is effectively increased.
Owner:INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS

Automatic identification and butt joint method for circular pipelines in port scene

The invention discloses an automatic identification and butt joint method for circular pipelines based on an intelligent hydraulic oil transfer arm technology, and the method comprises the steps: 1, rotating a two-dimensional laser scanner through an integrated holder to generate a pitch angle, and obtaining multi-view three-dimensional point cloud information of the circular pipelines; 2, establishing a disordered point cloud spatial index structure by utilizing a three-dimensional spatial grid, so that the data preprocessing speed is increased; 3, preprocessing the point cloud with the established data index structure so as to segment the three-dimensional point cloud of the whole scene into three-dimensional point cloud clusters representing different objects; 4, training the acquired point cloud data set, and continuously updating to form a time-phase invariant feature model library; and 5, completing self-identification of the circular pipelines in the port scene by utilizing themodel library and automatically butting the circular pipelines with the hydraulic oil transfer arm. Self-recognition of the circular pipelines and accurate butt joint of the circular pipeline and thehydraulic oil transfer arm can be achieved, and therefore a new step is developed towards an intelligent port.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Pesticide residue detection pretreatment device

The invention relates to a pesticide residue detection pretreatment device, wherein a grass column device and a ground glass flask are arranged on a bracket table; the bottleneck of the ground glass flask is butted with ground glass interface at the lower end of the glass column device in a sealed manner; the glass column device is a hollow glass column tube and is provided with a vacuum pump connection opening which is connected to a vacuum pump; an inlet at the upper end of the glass column device are connected with a polytetrafluoroethylene helix interface; the upper end of the polytetrafluoroethylene helix interface is connected with a solid phase extraction column by a polytetrafluoroethylene control valve; the polytetrafluoroethylene helix interface includes a screw head and a hollow tube, the screw head is threadly connected with the inlet of the glass column device, the hollow tube is arranged in the inlet of the glass column device, the end of the hollow tube is connected to a stainless steel collecting pipe, and the stainless steel collecting pipe penetrates through the ground glass interface at the lower end of the glass column device and extends into the ground glass flask. The pesticide residue detection pretreatment device can treat a plurality of samples at the same time and meet demands for flow speed control and large-volume elution solutio.
Owner:ANIMAL & PLANT & FOOD INSPECTION CENT OF TIANJIN ENTRY EXIT INSPECTION & QUARANTINE BUREAU

Method for detecting target in vertical ladder based on cloud server

The invention relates to a method for detecting a target in a vertical elevator based on a cloud server. The method comprises the following steps: a, acquiring image data in a lift car through a liftcar camera of the vertical elevator according to a picture capturing condition; b, writing the image data into a message management module according to node information and a screenshot condition, andstoring the image data into a cloud memory; c, reading the image data from the cloud memory through the message of the consumption message management module and providing the image data to the cloudprocessor; and d, after the cloud processor carries out batch image preprocessing on the image data, using a deep learning detection model deployed on the cloud processor to carry out accelerated reasoning operation, and finally, feeding a detection result back to the data platform. According to the method, the calculation amount of a detection model is reduced by accelerating preprocessing such as image encoding and decoding and scale transformation and replacing and cutting a backbone network, the reasoning time is reduced by using TensorRT acceleration and the like, the performance of a target detection algorithm is optimized to the maximum extent, and the processing capacity of an image in unit time is improved.
Owner:ZHEJIANG NEW ZAILING TECH CO LTD

Method for measuring trace amount of inorganic impurities in boric acid

The invention provides a method for measuring the trace amount of inorganic impurities in boric acid. The method comprises the following steps: (1) weighing a certain amount of a boric acid sample, and placing the weighed sample on a PFA wide-mouth bottle; (2) directly adding an optically-pure methanol reagent into the PFA wide-mouth bottle, and evenly stirring; (3) placing the PFA wide-mouth bottle in a water bath with a constant temperature of 78 to 120 DEG C, and heating the PFA wide-mouth bottle for 45 to 80 minutes until the boric acid sample is completely dissolved to obtain a boric acid sample solution, wherein during the heating process, the opening of the wide-mouth bottle is opened; (4) cooling the boric acid sample solution, transferring the boric acid sample solution to a volumetric flask, and filling water to a meter volume; (5) using inductively coupled plasma-optical emission spectrometer (ICP-OES) to analyze the content of inorganic impurity elements in the boric acid sample solution after the step (4). The provided method can rapidly and efficiently detect the trace amount of inorganic impurities in boric acid and is especially suitable for analyzing a large amount of boric acid samples.
Owner:昆明先导新材料科技有限责任公司

A photocopy document image enhancement and binarization method

The invention discloses an image enhancement and binaryzation method for a photoprint file. The image enhancement and binaryzation method for the photoprint file comprises the following steps of step one, graying input color images and obtaining graying images; step two, obtaining edge gradient of a regional image block which is corresponding to every pixel point through Sobel horizontal and vertical operator; step three, performing weight fusion improvement and LC regional enhancement and obtaining a weight fusion regional contrast value for every pixel point; step four, enabling the weight fusion regional contrast value for every pixel point to serve as a pixel value of the corresponding pixel point to obtain enhancement images of the input images. According to the image enhancement and binaryzation method for the photoprint file, the existing LC algorithm is performed on weight fusion improvement by improving the existing regional enhancement algorithm, the provided image enhancement algorithm is prior in effect compared with the existing file image enhancement and binaryzation method, has a good time performance and further improves the image preprocessing speed, and compared with the prior art, the image enhancement and binaryzation method is simple in parameter adjustment and the achievement process is simple and easy to operate.
Owner:CENT SOUTH UNIV

Device and method for pre-determination of fat-soluble vitamin samples in infant milk powder

The invention provides a determination pre-treatment device and method for a fat-soluble vitamin sample in infant milk powder. The device comprises a sealed box body, wherein a bottom plate of the sealed box body is connected with a light shielding sleeve; the light shielding sleeve is internally provided with a centrifugal pipe with a plug; the centrifugal pipe with the plug is provided with an internally-arranged sample; an opening ground plug is arranged at the opening end of the centrifugal pipe with the plug; the light shielding sleeve is in sealed connection with the bottom plate of the box body; the bottom plate of the box body, at the lower part of the light shielding sleeve, is provided with a water inlet hole for communicating an inner cavity of the light shielding sleeve and the outer part of the sealed box body; an N2 inlet is formed in one end of the sealed box body. The treatment method finished by the device comprises the step of forming the N2 inlet in the sealed box body so that the requirements of light shielding and oxygen-free environments can be met; the content and quality of vitamins in the infant formula milk powder are guaranteed; the treatment method can be used for the pre-treatment of the fat-soluble vitamins in the infant milk powder, and oxygen-free environment reaction or the pre-treatment method can be suitable for the device; and the application range is enlarged, a plurality of samples can be treated at the same time and the pre-treatment speed is increased.
Owner:ANIMAL & PLANT & FOOD INSPECTION CENT OF TIANJIN ENTRY EXIT INSPECTION & QUARANTINE BUREAU

Determination pre-treatment device and method for fat-soluble vitamin sample in infant milk powder

The invention provides a determination pre-treatment device and method for a fat-soluble vitamin sample in infant milk powder. The device comprises a sealed box body, wherein a bottom plate of the sealed box body is connected with a light shielding sleeve; the light shielding sleeve is internally provided with a centrifugal pipe with a plug; the centrifugal pipe with the plug is provided with an internally-arranged sample; an opening ground plug is arranged at the opening end of the centrifugal pipe with the plug; the light shielding sleeve is in sealed connection with the bottom plate of the box body; the bottom plate of the box body, at the lower part of the light shielding sleeve, is provided with a water inlet hole for communicating an inner cavity of the light shielding sleeve and the outer part of the sealed box body; an N2 inlet is formed in one end of the sealed box body. The treatment method finished by the device comprises the step of forming the N2 inlet in the sealed box body so that the requirements of light shielding and oxygen-free environments can be met; the content and quality of vitamins in the infant formula milk powder are guaranteed; the treatment method can be used for the pre-treatment of the fat-soluble vitamins in the infant milk powder, and oxygen-free environment reaction or the pre-treatment method can be suitable for the device; and the application range is enlarged, a plurality of samples can be treated at the same time and the pre-treatment speed is increased.
Owner:ANIMAL & PLANT & FOOD INSPECTION CENT OF TIANJIN ENTRY EXIT INSPECTION & QUARANTINE BUREAU

A fast pre-reading processing method for nurbs curve interpolation based on forward and backward method

ActiveCN107272597BQuickly and accurately preprocess informationEasy to identifyProgramme controlComputer controlForward lookingComputer science
The invention provides a NURBS curve interpolation fast pre-reading processing method based on an advance-retreat method. The method is characterized in that fast dispersion is carried out on a curvature smooth area of a curve through the advance-retreat method to enable parameter step increment to change quickly, and the number of curve points needing to be processed in the pretreatment process is reduced, and meanwhile, a velocity sensitive region is detected; and a curvature radius calculating function serves as an objective function, and a curvature radius minimum point of the velocity sensitive region is found through a step-length acceleration method, thereby enhancing identification and analysis processing speed of the velocity sensitive region in the forward-looking processing process and realizing fast forward. The method comprises the following specific steps: carrying out fast recognition of the velocity sensitive region through the advance-retreat method; obtaining a curvature extremum value approximation point of the velocity sensitive region; and correcting the curvature extremum value point of the velocity sensitive region, processing being finished. The method greatly reduces the number of points needing to be processed in the pretreatment process, and greatly improves real-time performance of the forward pretreatment process.
Owner:FUJIAN UNIV OF TECH

Optical element laser pretreatment method and device based on total reflection principle

The invention discloses a method and a device for optical element laser preprocessing based on a total reflection principle. The method comprises that a laser beam enters the inside of a transparent optical element from a side of the transparent optical element and irradiates a processing point 1 of the front surface of the transparent optical element, the incident angle of the laser beam meets the optical total reflection condition at the processing angle 1, the laser beam is reflected to the processing point 2 of the rear surface of the element via the total reflection, the laser beam is reflected to the processing point 1 and the processing point 2 back and forth, and the laser beam is subjected to total reflection between the front surface of the inside of the element and the rear surface of the inside of the element till the laser beam exits from the other side of the transparent optical element. The laser beam is subjected to total reflection in the transparent optical element sample, the laser energy is recovered and reused, the front subsurface, the rear subsurface, the front surface, the rear surface and characteristics of the optical element are processed, and the speed of the laser preprocessing is improved.
Owner:HEFEI ZHICHANG PHOTOELECTRIC TECH
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