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33results about How to "Identification helps" patented technology

Secondary classification fusion identification method for fingerprint and finger vein bimodal identification

The invention provides a secondary classification fusion identification method for fingerprint and finger vein bimodal identification. A fingerprint module and a vein module are used as primary classifiers, and a secondary decision module is used as a secondary classifier. The method comprises the following steps of: reading a fingerprint image and a vein image through the fingerprint module and the vein module; pre-processing the read images respectively and extracting characteristic point sets of the both; performing identification on the images respectively to obtain respective identification results, wherein the fingerprint identification adopts a detail point match-based method, and the vein identification uses an improved Hausdorff distance mode to perform identification; forming a new characteristic vector by using the extracted fingerprint and vein characteristic point sets in a characteristic series mode through the secondary decision module so as to form the secondary classifier and obtain an identification result; and finally, performing decision-level fusion on the three identification results. The method has the advantages of making full use of identification information of fingerprints and finger veins, and effectively improving the accuracy of an identification system, along with high identification rate.
Owner:HARBIN ENG UNIV

Front face human body automatic identity recognition method under long-distance video

The invention provides a front face human body automatic identity recognition method under a long-distance video. The method comprises a gait module and a human face module, and the method comprises the steps of firstly reading a video file, using the Adaboost method for detecting pedestrians, automatically opening the human face module and the gait module for respectively adopting the kernel principal component analysis on gait and human face for carrying out feature extraction if detecting the pedestrians, and finally adopting the decision-making level fusion method which adopts the human face features to assist the gait features for carrying out recognition. The method proposes a new solution concept for long-distance identity recognition and adopts the decision-making level fusion method which uses the human face features to assist the gait features. The human face features are assisted in the single-sample gait recognition, and the method has the advantages that even the gait training sample is the single sample and human face images are multiple, the number of the training samples can be expanded from another point of view, thereby being beneficial to the identity recognition, and improving the recognition precision by 2.4% by the fusion with the human face features.
Owner:HARBIN ENG UNIV

Radiation scanning and detecting device for small and medium size vehicles

The invention relates to a radiation scanning and detecting device for small and medium size vehicles. The radiation scanning and detecting device for the small and medium size vehicles comprises a door frame, a radiation source, a detector, a supporting platform, a conveyer support, a circulation drag unit, a vehicle wheel guide unit and a hanging bridge unit. The method of the radiation scanning and detecting device for the small and medium size vehicles has the advantages that a top illuminate radiation source U-type detector arrangement mode is adopted, the flattening radiation detection relative to the vehicles is achieved, and image quality is improved effectively; detectors with high sensitivity are adopted, image resolution can achieve the level of package detection, and a security check inspector can identify guns, knives, explosive assemblies and other forbidden objects conveniently; a double-energy detection technology is adopted to detect the material characteristics of the articles inside the vehicles, the fact that the security check inspector can identify flammable and combustible dangerous goods is facilitated; trundles and foot margins are designed and mounted on vehicle conveying devices and check channels, equipment is convenient to mount, debug and move, non-fixed type mounting with the ground is achieved, and the floor of a site cannot be damaged.
Owner:THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1

Method and device for phase shift attribute based on geosteering

The invention provides a method and device for a phase shift attribute based on geosteering, and relates to the technical field of oil and gas seismic exploration interpretation. The method comprisesthe steps that according to a normalized complex seismic channel of a post-stack seismic data body and multiple pieces of preset information of a direction perpendicular to the geologic structure trend, complex value correlation corresponding to various directions is calculated to determine an adjacent model track along each direction; then a complex correlation coefficient matrix corresponding tothe various directions is determined; then an instantaneous phase shift attribute of a point in the complex correlation coefficient matrix corresponding to the various directions is determined as thephase shift of the point; a maximum value of the phase shift of the point corresponding to the various directions as an identification result of the phase shift attribute of the point. The method anddevice for the phase shift attribute based on the geosteering have the advantages that the ancient geomorphological structure illusion with an inclination angle can be identified by using the calculation result of the phase shift, the information of the direction perpendicular to the geologic structure trend is introduced, the weak discontinuous anomalous body border can be better identified, thereby being conductive to determining a weak reflective structure and a minute structure.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Refrigerator, control method and control device

ActiveCN104833170ATo meet the needs of flexible adjustment of sensor light control modeImprove experienceLighting and heating apparatusLighting arrangementElectricityEngineering
The invention provides a refrigerator, a control method and a control device. The refrigerator comprises a door, an induction lamp, a photosensitive sensor, an infrared sensor, a switching button and a controller, wherein the induction lamp, the photosensitive sensor, the infrared sensor, the switching button and the controller are arranged on the door, the induction lamp, the photosensitive sensor, the infrared sensor and the switching button are all electrically connected with the controller, the photosensitive sensor is used for detecting the intensity of environmental illumination around the refrigerator, the infrared sensor is used for detecting the movement condition of a human around the refrigerator, the controller is used for sending a control command to the switching button according to at least one of the detection result of the photosensitive sensor, the detection result of the infrared sensor and the current time, and the switching button is used for switching control modes of the induction lamp according to the received control command so that the on-off state of the induction lamp can be controlled. By means of the technical scheme, the requirement of a user for flexibly adjusting the control modes can be met while cost is not increased, user experience is improved, and the cost performance of the induction lamp is improved.

Cleaning supervision method for vehicles entering and exiting from construction site

The invention discloses a construction site access vehicle cleaning supervision method, relates to the technical field of vehicle cleaning supervision, and solves the problem that construction site vehicle cleaning supervision is difficult. Comprising the following steps: identifying that a vehicle enters a vehicle washing area through a monitoring camera, if the vehicle is identified, performing image capture, and otherwise, ending a supervision process; judging the direction of a vehicle head according to the captured image, entering the next step if the vehicle head faces the direction away from the construction site, and ending the supervision process if the vehicle head faces the direction entering the construction site; detecting whether the vehicle stays in a vehicle washing area and whether the vehicle washing area sprays a water column for washing, if yes, entering the next step, and if not, giving an alarm and ending the supervision process; capturing continuous frames, and calculating the time length T when the vehicle and the water column for cleaning appear at the same time in the vehicle cleaning area; and judging whether T is greater than a time threshold, if yes, not giving an alarm and ending the supervision process, and if not, giving an alarm and ending the supervision process. The method has the advantage of efficiently, accurately and automatically monitoring vehicle cleaning.
Owner:CHENGDU KOALA URAN TECH CO LTD

Dolomite reservoir pore compression resistance effect identification and evaluation method and system

The invention discloses a dolomite reservoir pore anti-compaction effect response judgment and evaluation method and system, and the method comprises the steps: setting a pressure parameter in a simulation mechanical compaction effect; respectively preparing a plunger sample, a microscope slice and a powder sample from the selected dolomite sample; carrying out porosity and permeability analysis on the plunger sample; performing X-ray diffraction analysis on the powder sample; analyzing the microscope slice sample by using a microscope; performing lithology naming on the dolomite sample; carrying out CT scanning on the plunger sample; performing mechanical compaction action simulation on the plunger sample according to the pressure parameters to obtain the porosity and permeability of thedolomite sample under different pressure actions; according to the initial porosity and the initial permeability of the dolomite sample, and the porosity and the permeability under the action of different pressures, obtaining the porosity preserving rate and the permeability preserving rate of the dolomite sample; quantitatively evaluating the anti-compaction effect of dolomite in the mechanical compaction process.
Owner:PETROCHINA CO LTD

Bacterial colony height scanning imaging device, and automatic bacterial colony counting equipment and method capable of distinguishing atypical bacterial colonies

The invention discloses a bacterial colony height scanning and imaging device which comprises a supporting frame, a data collector, a bacterial colony bearing mechanism, an auxiliary light source assembly and a controller, the data collector is installed in the supporting frame, and the data collector comprises a camera and a miniature laser distance measuring sensor. According to the invention, bacterial colony two-dimensional image acquisition and bacterial colony three-dimensional image acquisition containing height information can be realized at the same time, bacterial colony image information with richer content is provided for bacterial colony counting and identification, and the accuracy of automatic bacterial colony counting equipment is improved. The invention also discloses a bacterial colony automatic counting device and method capable of distinguishing atypical bacterial colonies, and the method comprises the steps: firstly, carrying out the preliminary counting of bacterial colonies based on a bacterial colony two-dimensional image in combination with a plurality of image processing technologies; checking the preliminary colony counting result based on the colony three-dimensional image; and high accuracy of a bacterial colony counting result is ensured from multiple angles. The artificial intelligence classification technology is further applied to the bacterial colony counting process, and atypical bacterial colony distinguishing is achieved.
Owner:SICHUAN UNIV

Method for identifying authenticity of honey according to honey components

The invention discloses a method for identifying the authenticity of honey according to honey components. The method comprises the following steps that: preparations are made before identification: 3to 5g of a honey sample is put into a clean beaker; a user smells the honey sample: authentic honey collected by bees in natural remote mountains, or authentic honey gives out the fragrance of flowers, but absolutely no sourness, industrial flavor, fishy smell and the like no matter how slight the fragrance is; observation is carried out: air bubbles, color and viscosity are observed sequentially;the user tastes the honey sample: the user can taste the honey sample with his or her tongue so as to verify the authenticity of the honey sample, if the honey sample is authentic, the honey taste ofthe honey sample is thick and pure, and the content of a sugar component in the honey sample is moderate, the authentic honey sample will not be too sweet, and the aftertaste of the authentic honey sample is slightly sour and makes the user' throat have a sense of slight pricking, however, if the honey sample is fake honey, the content of the sugar component in the honey sample is high, the honeytaste of the honey sample is slight, if the user eats the fake honey, all that he or she can taste is a sweet taste other than a honey taste; and component identification is performed: component identification involves impurity identification, water identification, sugar identification, crystal identification and iron wire identification. Various identification modes are adopted; and therefore, the authenticity of honey can be identified according to the components of the honey, and consumers can use authentic honey.
Owner:安徽泓顺源生物科技有限公司

Typing analysis system for an atmospheric secondary particulate pollution process

The embodiment of the invention discloses a typing analysis system for an atmospheric secondary particulate pollution process. The typing analysis system comprises an atmospheric particulate pollutionprocess identification module, a secondary pollution type identification module and a semi-quantitative pollution cause evaluation module, wherein the atmospheric particulate pollution process identification module is used for judging the atmospheric particulate pollution process; the secondary pollution type identification module is used for carrying out type typing on a secondary pollution event based on particulate component change; and the semi-quantitative pollution cause evaluation module is used for identifying main control factors in the generation process of secondary particulate components in the atmosphere based on a pollution event typing result in combination with meteorological and gaseous pollutant concentration data, analyzing the relationship between the secondary particulate components and atmospheric environmental elements in the pollution process, and semi-quantitatively identifying pollution causes. According to the typing analysis system, the problems that the causes of the secondary conversion process of atmospheric particulates are difficult to directly analyze and judge in existing atmospheric pollution analysis, the causes of atmospheric particulate pollution cannot be comprehensively analyzed, and pollution control blind areas are easily formed are solved.
Owner:CHENGDU ACADEMY OF ENVIRONMENTAL SCI

Power equipment identification method and device and terminal equipment

The invention is suitable for the technical field of image recognition, and discloses a power equipment recognition method and device and terminal equipment. The electrical equipment identification method comprises the following steps: acquiring an electrical equipment image, preprocessing the electrical equipment image, and establishing an electrical equipment image data set; based on the power equipment image data set, training to obtain a power equipment identification model; and inputting the to-be-identified electrical equipment picture into the electrical equipment identification model to obtain an identification result of the electrical equipment. A power equipment image data set is preprocessed, the problem that the operation speed is low due to the fact that the size difference of power energy equipment is large is solved, a power equipment recognition model is established according to the power equipment image data set, the model is improved in the three aspects of feature extraction, feature fusion and feature matching, and the recognition accuracy is improved. While the model operation efficiency is improved, the identification precision of the power equipment is improved.
Owner:INST OF ECONOMIC & TECH STATE GRID HEBEI ELECTRIC POWER +3

A type analysis system for the process of atmospheric secondary particle pollution

The embodiment of the present invention discloses a type analysis system for atmospheric secondary particulate matter pollution process, including: an identification module for atmospheric particulate matter pollution process, a secondary pollution type identification module, and a semi-quantitative pollution cause evaluation module. The atmospheric particle pollution process identification module judges the atmospheric particle pollution process; the secondary pollution type identification module classifies secondary pollution events based on changes in particle components; the semi-quantitative pollution cause assessment module, based on the classification results of pollution events, combines Meteorological and gaseous pollutant concentration data, identify the main controlling factors in the formation process of secondary particulate matter components in the atmosphere, analyze the relationship between secondary particulate matter components and atmospheric environmental elements in the pollution process, and semi-quantitatively identify the cause of pollution. The invention solves the problem that the existing air pollution analysis is difficult to directly analyze and determine the cause of the secondary transformation process of the atmospheric particulate matter, and cannot comprehensively analyze the cause of the atmospheric particulate matter pollution, thereby easily forming a pollution control blind spot.
Owner:CHENGDU ACADEMY OF ENVIRONMENTAL SCI

Secondary classification fusion identification method for fingerprint and finger vein bimodal identification

The invention provides a secondary classification fusion identification method for fingerprint and finger vein bimodal identification. A fingerprint module and a vein module are used as primary classifiers, and a secondary decision module is used as a secondary classifier. The method comprises the following steps of: reading a fingerprint image and a vein image through the fingerprint module and the vein module; pre-processing the read images respectively and extracting characteristic point sets of the both; performing identification on the images respectively to obtain respective identification results, wherein the fingerprint identification adopts a detail point match-based method, and the vein identification uses an improved Hausdorff distance mode to perform identification; forming a new characteristic vector by using the extracted fingerprint and vein characteristic point sets in a characteristic series mode through the secondary decision module so as to form the secondary classifier and obtain an identification result; and finally, performing decision-level fusion on the three identification results. The method has the advantages of making full use of identification information of fingerprints and finger veins, and effectively improving the accuracy of an identification system, along with high identification rate.
Owner:HARBIN ENG UNIV

Method and device for identifying phase shift attributes based on geosteering

The invention provides a method and device for a phase shift attribute based on geosteering, and relates to the technical field of oil and gas seismic exploration interpretation. The method comprisesthe steps that according to a normalized complex seismic channel of a post-stack seismic data body and multiple pieces of preset information of a direction perpendicular to the geologic structure trend, complex value correlation corresponding to various directions is calculated to determine an adjacent model track along each direction; then a complex correlation coefficient matrix corresponding tothe various directions is determined; then an instantaneous phase shift attribute of a point in the complex correlation coefficient matrix corresponding to the various directions is determined as thephase shift of the point; a maximum value of the phase shift of the point corresponding to the various directions as an identification result of the phase shift attribute of the point. The method anddevice for the phase shift attribute based on the geosteering have the advantages that the ancient geomorphological structure illusion with an inclination angle can be identified by using the calculation result of the phase shift, the information of the direction perpendicular to the geologic structure trend is introduced, the weak discontinuous anomalous body border can be better identified, thereby being conductive to determining a weak reflective structure and a minute structure.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Automatic identification method of frontal human body under long-distance video

The invention provides a front face human body automatic identity recognition method under a long-distance video. The method comprises a gait module and a human face module, and the method comprises the steps of firstly reading a video file, using the Adaboost method for detecting pedestrians, automatically opening the human face module and the gait module for respectively adopting the kernel principal component analysis on gait and human face for carrying out feature extraction if detecting the pedestrians, and finally adopting the decision-making level fusion method which adopts the human face features to assist the gait features for carrying out recognition. The method proposes a new solution concept for long-distance identity recognition and adopts the decision-making level fusion method which uses the human face features to assist the gait features. The human face features are assisted in the single-sample gait recognition, and the method has the advantages that even the gait training sample is the single sample and human face images are multiple, the number of the training samples can be expanded from another point of view, thereby being beneficial to the identity recognition, and improving the recognition precision by 2.4% by the fusion with the human face features.
Owner:HARBIN ENG UNIV

A radiation scanning detection device for small and medium-sized vehicles

The invention relates to a radiation scanning and detecting device for small and medium size vehicles. The radiation scanning and detecting device for the small and medium size vehicles comprises a door frame, a radiation source, a detector, a supporting platform, a conveyer support, a circulation drag unit, a vehicle wheel guide unit and a hanging bridge unit. The method of the radiation scanning and detecting device for the small and medium size vehicles has the advantages that a top illuminate radiation source U-type detector arrangement mode is adopted, the flattening radiation detection relative to the vehicles is achieved, and image quality is improved effectively; detectors with high sensitivity are adopted, image resolution can achieve the level of package detection, and a security check inspector can identify guns, knives, explosive assemblies and other forbidden objects conveniently; a double-energy detection technology is adopted to detect the material characteristics of the articles inside the vehicles, the fact that the security check inspector can identify flammable and combustible dangerous goods is facilitated; trundles and foot margins are designed and mounted on vehicle conveying devices and check channels, equipment is convenient to mount, debug and move, non-fixed type mounting with the ground is achieved, and the floor of a site cannot be damaged.
Owner:THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1

Radar target recognition method based on radar target range profile time-frequency feature extraction

ActiveCN102645649BImprove target recognition efficiencyReduce workloadRadio wave reradiation/reflectionDecompositionNonnegative matrix
The invention provides a radar target recognition method based on radar target range profile time-frequency feature extraction. The method comprises the steps that firstly a matching pursuit time-frequency analysis method is used for calculation to obtain a time-frequency distribution matrix of a radar target range profile; then a nonnegative matrix decomposition technique is used for decomposingthe time-frequency distribution matrix to obtain the time-frequency features of a time-frequency coherent structure in the high resolution range profile (HRRP) of a radar target; and finally the radar target is recognized according to a time-frequency feature extraction scheme for the radar target range profile. The radar target recognition method based on the radar target range profile time-frequency feature extraction has the advantages that the method can be executed through computer operation, the workload of observers for radar target recognition is reduced, the improvement of radar target recognition efficiency is facilitated, the nonnegative matrix decomposition technique used in the method effectively realizes the dimension reduction of the target range profile time-frequency matrix, the time phase structure scatted by the radar target is obtained through decomposition and the operational performance and the accuracy of radar target recognition can be further improved.
Owner:北京深蓝空间遥感技术有限公司

Finger vein recognition method based on fusion of local features and global features

The invention discloses a finger vein recognition method fusing local features and global features. At present, a number of vein recognition methods adopt the local features of a vein image, so that the recognition precision of the vein recognition methods is greatly affected by the quality of the image; the phenomena of rejection and false recognition are liable to appear. The finger vein recognition method provided by the invention comprises the following steps: firstly, performing pretreatment operations such as finger area extraction of a read-in finger vein image, binarization and the like; then, according to the point set of extracted detail features, realizing the matching of the local features within a certain angle and a certain radius by virtue of a flexible matching-based local feature recognition module; using a global feature recognition module for vein image recognition to realize the matching of the global features as the global feature recognition module is used for analyzing bidirectional two-dimensional principal components and can better display a two-dimensional image data set on the whole; finally, designing weights according to the correct recognition rates of the two recognition methods, performing decision-level fusion to the results of two classifiers, and taking the fused result as a final recognition result. The method is applied to finger vein recognition.
Owner:HEILONGJIANG UNIV
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