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334results about How to "Improve recognition efficiency" patented technology

Electric power device identification model construction method and system, and identification method of electric power device

The present invention relates to an electric power device identification model construction method and system, and an identification method of an electric power device. The electric power device identification model construction method comprises: marking electric power device targets in an infrared image respectively corresponding to each type of an electric power device, and obtaining a sample training set; inputting the sample training set into a RPN convolutional neural network to allow a loss function to have a minimum value, and outputting a target candidate frame; inputting the target candidate frame into a Fast-RCNN convolutional neural network, calculating the conversion weight value of the target candidate frame to a corresponding type according to a fully connected layer and a regression function, and employing the frame regression to obtain the Fast-RCNN parameters of the position of the target candidate frame being offset to a corresponding tag position; and setting a sharing convolutional layer learning rage as 0, and performing initialization of the RPN convolutional neural network and the Fast-RCNN convolutional neural network, performing training of an input infrared image in the RPN convolutional neural network according to the Fast-RCNN parameters, and obtaining a RPN convolutional neural network model; and inputting the target candidate frame into the RPN convolutional neural network model, updating the Fast-RCNN convolutional neural network to form a uniform Fast-RCNN network, and outputting an electric power identification model.
Owner:GUANGZHOU POWER SUPPLY CO LTD +1

Multi-meter character recognition system and multi-meter character recognition method based on machine vision

The invention relates to a multi-meter character recognition system and a multi-meter character recognition method based on machine vision. The system comprises an image acquisition module, a network storage module, and a software processing module. The software processing module comprises an electric meter group segmentation unit, an image preprocessing unit, an image tilt correction unit, an image enhancement unit, a character area positioning unit, a character segmentation unit, an image normalization unit, a character feature extraction unit, and a BP neural network identification unit. The image acquisition module comprises a grayscale processing unit, a binary processing unit, and a morphological processing unit. Multiple electric meter images can be identified at the same time, and human resource and work time are saved greatly. As an FTP cloud is used to store electric meter images and electric meter identification data, resource sharing is saved, the problem on storage of a lot of images and a lot of electric meter data collected in real time by cameras in a production field is solved, the memory of PC is released, and the efficiency of electric meter identification is increased.
Owner:GUANGDONG UNIV OF TECH

Method and system for naming picture

The invention discloses a method and system for naming a picture and belongs to the field of computer technologies. The method comprises the first step of obtaining the picture, source information of the obtained picture and content information of the picture and finding one or more preset pictures, corresponding to the content information of the picture, in a feature library according to the content information of the picture, the second step of performing image matching on the obtained picture and one or more found preset pictures corresponding to the content information of the picture and selecting one similar picture most similar to the obtained picture, the third step of obtaining feature information corresponding to the similar picture, wherein the feather information is used for describing one or more features of the obtained picture, and the fourth step of naming the obtained picture. Through the source information of the picture and the content information of the picture, the matching range of the feature information of the picture in the feature library is determined, the picture is named according to the matched feature information, the source information of the picture and the content information of the picture, and therefore the recognition efficiency of a user for searching the pictures is improved.
Owner:HUAWEI TECH CO LTD

Hardware trojan identification method based on single classification supporting vector machine

A hardware trojan identification method based on a single classification supporting vector machine belongs to the detection and identification field of hardware trojan chips. The invention solves the problems of huge error and low efficiency in the prior art because the technology of utilizing chip side channel information to identify the chip hardware trojan requires to observe an image manually. The method provided by the invention comprises the following steps: I, preprocessing, and acquiring a side channel information matrix; II, selecting a backward analysis chip to perform backward analysis, and determining whether a hardware trojan is contained; III, dividing the backward analysis chip not containing the hardware trojan into a train sample and a train optimizing sample; IV, utilizing the side channel information matrix of the train sample to establish the characteristic space of the chip; V, acquiring the side channel characteristic data matrix of a chip to be detected; VI, performing normalization processing; VII, picking up the normalized data of the train sample and the train optimizing sample; VIII, training the single classification supporting vector machine to constitute a minimum hypersphere; and IX, if beyond the minimum hypersphere, then determining that the chip to be detected is a hardware trojan chip.
Owner:HARBIN INST OF TECH AT WEIHAI

GIS partial discharge on-line monitoring mode identification method and GIS partial discharge on-line monitoring mode identification system

The invention relates to a GIS partial discharge on-line monitoring mode identification method and a GIS partial discharge on-line monitoring mode identification system. The method comprises the following specific steps: processing received partial discharge data to obtain the amplitude, number of discharges and phase of the partial discharge data; generating a PRPS three-dimension spectrogram according to the number of discharges, amplitude and phase, and further generating a PRPD spectrogram, a v-phi spectrogram, and an n-phi spectrogram; extracting the characteristic value of the partial discharge data based on the PRPD spectrogram, the v-phi spectrogram and the n-phi spectrogram; and carrying out person correlation calculation on the characteristic value of the partial discharge data and the characteristic value of each partial discharge data type in a sample library one by one to identify the type of partial discharge. The GIS partial discharge on-line monitoring mode identification system of the invention comprises an acquisition unit and a data processing unit. The method and the system of the invention have the advantages of simple identification process and high identification rate, and have great value of on-site engineering application.
Owner:XUJI GRP +3

Automatic identifying and classifying method for sensitive data

The invention discloses an automatic identifying and classifying method for sensitive data, comprising the steps of: pre-treating a training dataset, removing unmeaning words, and thereby obtaining a word set; treating the word set according to TF-IDF, calculating the vector weighed value of each word, and thereby obtaining a basic data corpus; manually identifying and classifying the basic data corpus, selecting the words on which sensitive data can be marked, and thereby forming a sensitive word corpus; performing word segmentation on target data by the word segmentation technology, and then matching extracted features with the sensitive word corpus; and sorting the classification according to accumulated values of the weighted values of the sensitive words from high to low. According to the automatic identifying and classifying method for sensitive data, through establishing the sensitive word corpus, performing word segmentation on the target data, and calculating the accumulated values of the weighted values of the sensitive words, the classification of the sensitive data is achieved, and thereby efficiency and accuracy of the sensitive data identification and classification are improved, and the defect that the existing sensitive data is identified depending on dictionary classification and manual classification is remedied.
Owner:北京途美科技有限公司 +1

Access control method and device

The invention provides an access control method and device, and applied to network equipment. The method comprises the following steps of: analyzing message characteristics of a service message after receiving the service message sent by client equipment; judging whether the message characteristics are matched with a protocol identification table or not, wherein the protocol identification table comprises corresponding relationships between the message characteristics and protocol types; determining the protocol type of the service message according to a matched table item if the message characteristics are matched with the protocol identification table; and performing access control processing of the service message according to the protocol type. Due to application of the embodiment of the method and device, after the network equipment receives the service message sent by the client equipment, the protocol type of the service message can be rapidly identified according to the protocol identification table based on the message characteristics of the service message; the service message is unnecessary to be subjected to tedious operations, such as reading of a load content and application layer information reorganization; therefore, consumption of a CPU of the network equipment is low; and the identification efficiency is high.
Owner:HANGZHOU DPTECH TECH

Architectural-drawing-based automatic identification method for column and wall

ActiveCN108376248ASolve the problems of low recognition efficiency and low recognition accuracyImprove recognition efficiencyGeometric CADCharacter and pattern recognitionPoint setContour line
The invention discloses an architectural-drawing-based automatic identification method for a column and a wall. Information of a layer at which each column is located and a layer at which each wall islocated is read, coordinate data of end points of column lines of all columns are found out according to a pixel of each expression column, and the coordinate data are written into a column point setcorrespondingly; according to all processed new wall lines, whether all closed polygonal wall lines are connected with columns is determined; if not, coordinate data of end points of the closed polygonal wall lines are found out and are written into wall point sets correspondingly; if so, coordinate data of end points of a wall-column pixel formed by connection of the closed polygonal wall linesand the columns are written into wall-column point sets correspondingly; and a corresponding column contour line is generated based on each column point set and the generated line is outputted, a wallcontour line is generated based on each wall point set and the generated line is outputted, and a wall-column contour line is generated based on each wall-column point set and the generated line is outputted. Therefore, the recognition efficiency and recognition accuracy of the column and wall of the building object can be improved.
Owner:GUANGZHOU UNIVERSITY

Temperature response type europium ion imprinting composite membrane preparation method and application

The invention discloses a temperature response type europium ion imprinting composite membrane preparation method and belongs to the technical field of environmental functional material preparation. Specifically, a regenerated cellulose membrane is utilized as a supporting membrane, graphene oxide and modified silicon dioxide nanosphere are utilized as membrane preparing materials, an europium ion is utilized as a formwork, acrylic amide is utilized as a functional monomer, N-isopropyl acrylamide is utilized as a temperature sensitive type functional monomer, ethylene glycol dimenthacrylate is utilized as a cross-linking agent, azodiisobutyronitrile is utilized as an initiator, a composite membrane is prepared on the surface of the supporting membrane, a two-step temperature polymerization method is utilized to prepare a temperature response type europium ion imprinting composite membrane. A static adsorption experiment and a selective permeation experiment are utilized to research adsorption balance, adsorption kinetics, selective recognition and europium ion separation performance of the prepared temperature response type europium ion imprinting composite membrane. Results show that the temperature response type europium ion imprinting composite membrane prepared through the method disclosed by the invention has higher specific adsorption capacity on europium ions and excellent europium ion recognition and separation performance under condition of 35 DEG C.
Owner:JILIN NORMAL UNIV

Mobile terminal, and method and device for identifying malicious advertisements in mobile terminal

ActiveCN104346569AImprove recognition efficiencyMake up for the deficiency of extracting code feature matching technology to judge malicious advertisementsPlatform integrity maintainanceFeature matchingContent determination
Provided are a method, device, and mobile terminal for identifying malicious advertisements in a mobile terminal, and a storage medium. The method comprises the following steps: obtaining an application program running in a mobile terminal; monitoring a notification bar of the mobile terminal to determine notification information corresponding to the application program; and, according to the frequency of appearance of the notification information and/or the content of the notification information, determining whether the application program displays malicious advertisements. The present method determines the notification information corresponding to an application program by monitoring the notification bar of the mobile terminal, and determines whether the application program displays malicious advertisements according to the frequency of appearance of the notification information and/or the content of the notification information, thereby accurately identifying application programs capable of displaying malicious advertisements, effectively compensating for the deficiencies of determining malicious advertisements by extraction code feature matching technology, and increasing the efficiency of malicious advertisement identification.
Owner:BEIJING CHEETAH MOBILE TECH CO LTD +4

Character information identification method for medical image and device thereof

The invention relates to a character information identification method for a medical image and a device thereof. The method comprises the steps that input of selecting a character area of an operator on the medical image is received, and the character area under character information identification is confirmed according to the input; image preprocessing operation is performed on the character area so that non-character information is removed and a clean character image is obtained; the character image is cut so that characters are split out and single character images are obtained, and the obtained single character images are identified so that preliminarily identified characters are obtained; the preliminarily identified characters are corrected; and the corrected identified characters are verified according to the preset verification conditions so that unreasonable and illegal identified characters are removed, a verification result is outputted, and the verification result includes the verified identified characters. The identification range is reduced according to the received input of the operator, identification efficiency is enhanced, and the preprocessed and preliminarily identified characters are corrected and verified so that identification accuracy is further enhanced.
Owner:上海新红医医疗科技有限公司
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