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Cargo pallet detection method and system based on point cloud plane contour matching
ActiveCN107507167ALow costImprove detection accuracyImage enhancementImage analysisContour matchingPlane segmentation
The invention provides a cargo pallet detection method and system based on point cloud plane contour matching. The method includes the following steps: S1, original point cloud filtering; S2, point cloud plane segmentation; S3, generating a grid map through projection; S4, contour extraction; S5, contour matching; and S6, acquiring the relative position and posture. The system includes an original point cloud filtering module, a point cloud plane segmentation module, a module for generating a grid map through projection, a contour extraction module, a contour matching module, and a relative position and posture acquisition module. The method and the system are of low cost and high detection accuracy, and are basically not affected by illumination. There is no need for label laying or other operation, and there is no need to transform the storage environment. The method and the system are suitable for pallets of various colors and specifications, and have the advantages of high accuracy, low price, strong robustness, and the like.
Owner:SHANGHAI JIAO TONG UNIV
Heterogeneous depth camera-based three-dimensional information obtaining method and apparatus
ActiveCN106780618AHigh resolutionSmall amount of calculationImage enhancementImage analysisLeast squaresDepth map
The invention discloses a heterogeneous depth camera-based three-dimensional information obtaining method. The method comprises the following steps of shooting a picture; calculating internal parameters of a Kinect camera and a TOF camera; extracting reliable depth information according to the shot picture; fitting calibration board plane coordinates of the Kinect camera and the TOF camera according to the reliable depth information; recovering an actual three-dimensional coordinate set of corner points of the Kinect camera and the TOF camera under the fitted calibration board plane coordinates in combination with the internal parameters; calculating a least square conversion matrix between the Kinect camera and the TOF camera; performing coordinate conversion on the reliable depth information according to the least square conversion matrix to obtain depth fusion information; matching color information acquired by the Kinect camera with the depth fusion information; and performing point cloud registration on image information after matching based on a spatial distance between the points to obtain three-dimensional information. By adopting the method, a high-resolution accurate depth map fusing the color information can be quickly obtained, and then accurate three-dimensional information is obtained.
Owner:周超艳
Sensing carpet, method and method used for monitoring pedestrian flow density in public place
InactiveCN102354374AEasy to installEasy to removeCounting mechanisms/objectsCommunication interfacePublic place
The invention discloses a sensing carpet, a system and a method used for monitoring pedestrian flow density in a public place. The monitoring of the pedestrian flow density is realized through the communication between the sensing carpet and a monitoring terminal by taking the sensing carpet as sensing equipment of the pedestrian flow density. A sensing detection circuit of the sensing carpet mainly comprises a detection module, a communication interface and a plurality of compression detection devices arranged in the sensing carpet in arrays; the sensing detection circuit is simple in structure, low in cost and easy to realize; the sensing carpet can be paved in various public places at any time, can be used and installed immediately, and is very convenient to install, detach and move; and the monitoring terminal can be realized by any terminal with communication, data processing and display functions, can realize portable monitoring. The processing flow of the overall system is simple, the programming difficulties of software programming personnel are reduced, the hardware performance requirements on a sensing carpet detection module and the monitoring terminal are reduced, and both the manpower and resource cost of system development can be controlled effectively.
Owner:CHONGQING JIAOTONG UNIVERSITY
Cargo tray detection system and method based on TOF (Time of Flight) camera
The invention provides a cargo tray detection system and method based on a TOF (Time of Flight) camera. The system comprises a central control unit and the TOF camera, wherein the TOF camera is used for acquiring an RGBD image and transmitting the RGBD image to a central processing unit; the central processing unit is used for converting the RGBD image into a gray level depth image and taking a detected regular shape as a tray plane candidate region; if the tray plane candidate region contains at least two rectangular regions, the rectangular regions are used as branch hole candidate regions and pixel area of the branch hole candidate regions and central point coordinates of the branch hole candidate regions are calculated; an area ratio tij between any two branch hole candidate regions Ri and Rj in the tray plane candidate region is calculated; when two Ri and Rj which accord with a threshold value range are screened and remained, a cargo tray is detected; a middle point Oij of a connecting line of the central points of the remained Ri and Rj is used as the central point of the surface of the cargo tray; distance value d between the Oij and the TOF camera is obtained through gray level value of the Oij. The cargo tray detection system and method based on the TOF camera have the advantages of high precision, low price, strong robustness and the like.
Owner:SHANGHAI JIAO TONG UNIV
Method for recognizing mobile robot by comparing images and mobile robot
InactiveCN106595634AImprove stabilityNot affected by lightImage enhancementImage analysisReference imageMobile robot
Owner:深圳市有光图像科技有限公司
Accurate positioning method of human face characteristic points
InactiveCN101567045APrecise positioningHigh positioning accuracyCharacter and pattern recognitionComputer graphics (images)Histogram
The invention discloses an accurate positioning method of human face characteristic point, pertaining to the technical field of digital image processing. The method comprises the steps of: intercepting an analysis window from an existing human face image; equally dividing the analysis window by taking the characteristic point as the center and obtaining analysis areas; conducting R times of LBP processing on each analysis area (the distances between the center point and the peripheral points for the processing are respectively 1 pixel, 2 pixels to R pixels.) and obtaining R LBP graphs, thus obtaining all the histograms; taking the summation of the R histograms as the histogram of the analysis area; taking the average value of the histograms of all analysis areas as the characteristic histograms of the analysis areas; intercepting an analysis window from the graph to be analyzed based on each pixel and dividing the analysis window into analysis areas in the same way; conducting Line LBP processing on the analysis areas and obtaining the LBP graphs, thus obtaining the histograms, and calculating the chi-square distances between the histograms and the characteristic histograms of the analysis areas; summing the chi-square distances; and taking the pixel point when the sum is minimum as the characteristic point. The method can be applied to the accurate positioning of the human face characteristic points in the processing of the human face image.
Owner:PEKING UNIV
Method for tracking pedestrian by cooperating robot and mobile phone
The invention provides a method for tracking a pedestrian by cooperating a robot and a mobile phone. The pedestrian is tracked in the mode that the mobile robot is mutually cooperated with the mobile phone. Due to the fact that smart phones are popularized at present, the mobile phone carried by the pedestrian and the mobile robot are cooperated to complete a tracking task. According to the method, a specific person can be tracked through movement information of the person. The walking speed and the walking direction of the person can be calculated by the mobile phone according to measured data of an inertia sensor, and the information can be transmitted to the robot. The walking speeds and the walking directions of the nearby pedestrians are measured by the robot through a laser range finder of the robot or other devices, and the person meeting the movement characteristics of the target pedestrian is found. The method cannot be influenced by illumination and is wide in application range and high in accuracy.
Owner:NO 61 INST OF GENERAL STAFF +1
Field crop canopy density detection method based on laser radar sensor
PendingCN111289997AEfficient pesticide applicationNot affected by lightImage enhancementImage analysisField cropSoil science
The invention discloses a field crop canopy density detection method based on a laser radar sensor. The method the method comprises the steps: selecting a crop field with an obvious canopy density difference, building a canopy density detection device, and acquiring three-dimensional point cloud data of the crop; carrying out segmentation removal, height conversion and crop canopy region divisionon the obtained original three-dimensional point cloud data; collecting leaf area data, calculating a leaf area index LAI of each field parcel, and acquiring a mathematical model of the crop canopy area point cloud number and the canopy density degree according to the crop leaf area indexes LAI of different density degrees and the crop canopy area point cloud number. The method is not influenced by illumination, the measurement speed is high, and subsequent pesticide application operation can be carried out more efficiently.
Owner:JIANGSU UNIV
Nano-silver-loaded microcrystal bamboo charcoal ceramic bead and preparation method thereof
ActiveCN104437365ASignificant technological progressFree from oxidationOther chemical processesDispersed particle separationAdhesiveNanostructure
The invention relates to a nano-silver-loaded microcrystal bamboo charcoal ceramic bead and a preparation method thereof. The nano-silver-loaded microcrystal bamboo charcoal ceramic bead is prepared from nano-silver and a microcrystal bamboo charcoal ceramic bead by virtue of surface compounding, wherein the microcrystal bamboo charcoal ceramic bead is prepared from the following components by weight percent: 30%-50% of bamboo charcoal powder, 30%-40% of porous nonmetal mineral powder, 20%-30% of clay and 2%-5% of an adhesive. According to the preparation method, the microcrystal bamboo charcoal ceramic bead is coated with nano-silver, so that nano-silver has a strong support body, doped nano-structure silver is further formed, and the catalytic efficiency of nano-silver is further improved; the microcrystal bamboo charcoal ceramic bead is high in structural strength and can resist high temperature, so that the microcrystal bamboo charcoal ceramic bead can be regenerated by virtue of a roasting manner after being used for a long time, and the adsorption capability and the catalytic degradation and killing effects are recovered; compared with porous-ceramic-loaded nano-silver, the nano-silver-loaded microcrystal bamboo charcoal ceramic bead has relatively good effects in the aspects of water quality purification, air purification and the like, furthermore, the preparation method is simple, and the application is convenient.
Owner:桂林良物造环境科技有限公司
Light emitting diode display panel and manufacturing method thereof, and display device
ActiveCN104112758AAvoid scratchesNot affected by lightSolid-state devicesSemiconductor/solid-state device manufacturingEvaporationDisplay device
The invention discloses a light emitting diode display panel and a manufacturing method thereof, and a display device, and relates to the technical field of display. The light emitting diode display panel includes a thin film transistor backboard and a light emitting structure, the light emitting diode display panel also includes a protective film, and the protective film is located between the thin film transistor backboard and the light emitting structure and covers grid lines and data line in a display area of the light emitting diode display panel. The protective film also covers a circuit in the periphery of the display area of the light emitting diode display panel. According to the light emitting diode display panel in the invention, a protective film process is added to a manufacturing process of an existing light emitting diode display panel, thereby effectively preventing a scratch of the thin film transistor backboard by an evaporation mask plate in manufacture of the light emitting structure and preventing a static electricity problem caused thereby.
Owner:BOE TECH GRP CO LTD
Method for degrading organic dye based on pyroelectric effect of phase change
InactiveCN112250143ANo secondary pollutionSuitable for industrial productionWater treatment compoundsWater contaminantsOrganic dyeSewage
The invention discloses a method for degrading organic dye based on a pyroelectric effect of phase change. The method comprises the following steps: adding a lead-free piezoelectric material BZT-xBCTinto organic dye sewage, changing the temperature in a range near room temperature to enable the lead-free piezoelectric material BZT-xBCT to generate phase change, and degrading the organic dye in the sewage through polarized charges caused by the phase change. The degradation method provided by the invention has no secondary pollution, is suitable for industrial production, and has important significance for degradation of organic dyes in sewage.
Owner:SOUTHEAST UNIV
Rock-soil stratified sampling device
InactiveCN111896305AAvoid mixingNot affected by lightWithdrawing sample devicesProportional Stratified SamplingElectric machinery
The invention relates to the field of rock-soil sampling, and particularly discloses a rock-soil stratified sampling device which comprises a rectangular hollow sampling barrel, and a hollow drill bitis arranged at the bottom of the sampling barrel; two oppositely-arranged sliding grooves are formed in the inner wall of the sampling barrel, rectangular limiting rings are connected into the sliding grooves in a sliding mode, connecting blocks extending into the sliding grooves to slide are fixed to the two side walls of each limiting ring, and driving motors for driving the connecting blocks to slide are arranged on the connecting blocks; a cavity is formed in each connecting block, a first telescopic air cylinder penetrating through a limiting ring is fixed in the cavity, a vertically-arranged first electric heating plate is fixed to the extending end of the first telescopic air cylinder, and a cavity for containing the first electric heating plate is formed in the inner wall of the limiting ring; a plastic shading bag is arranged between the bottom of each limiting ring and the bottom of the sampling cylinder; the diameter of the shading bag is smaller than the length of the electric heating plate; the invention aims to solve the problem that an existing sampling device cannot perform stratified sampling in the sampling process.
Owner:温州源铭振跃科技有限公司
Intelligent lecture speaking platform
The invention discloses an intelligent lecture speaking platform, which comprises a platform body. A platform face is arranged at the top of the platform body, one or more partition plates are arranged in a chamber inside the platform body and partition the chamber into one or more accommodating cavities; wires or using devices are placed in the accommodating cavities, and an air imaging assemblyis arranged on the platform face and projects a speech draft in air for use by a speaker; and a height adjusting assembly is further included, and the height adjusting assembly is adjusted according to different heights of people to change the height position of the speech draft relative to the speaker. According to the intelligent lecture speaking platform, the air imaging assembly is applied tothe field of speaking, air imaging is formed by a computer and a photonic glass display screen, the speaker can see the speech draft formed in the air and is not affected by any illumination, the height of the screen can be adjusted according to the height of the speaker, and many shortcomings in the speech process can be effectively solved.
Owner:浙江斯玛特信息科技有限公司
Method for rapid degradation of triphenylmethane dye waste water
InactiveCN101560027BStrong oxidation abilityImprove applicabilityWater contaminantsMultistage water/sewage treatmentTriphenylmethaneExternal energy
The invention discloses a method for rapid degradation of triphenylmethane dye waste water. The method firstly removes impurities by a grill, stands for precipitation and regulates pH, wherein, the pHvalue of the triphenylmethane dye waste water is controlled to be about 7-10; the waste water is introduced into a simple reaction container, then a mixture consisting of sodium bismuthate and silvernitrate is added, the multi-phase uniform mixing reaction is kept under the action of stirring, the temperature of the dye waste water during the process is kept at room temperature, the pressure isnormal pressure, and the waste water is discharged. The treatment method can high-efficiently degrade triphenylmethane dye which is typically difficult to biodegrade, the catalytic reaction can be realized without the use of any light source or other external energy, such as microwave and the like, and the treatment method has very low requirements on equipment, less energy consumption, low operation cost, convenient operation and no secondary pollution, thereby being the method which can realize the degradation at the room temperature.
Owner:NANJING UNIV
Combined processing apparatus and combined processing method
ActiveCN108472776AEasy to check visuallyNot affected by lightAdditive manufacturing apparatusIncreasing energy efficiencyProcess engineeringProduction unit
The invention provides a combined processing apparatus and a combined processing method. This combined processing apparatus is provided with: an addition production unit for performing an addition production by irradiating a work with energy in a processing region; a cutting unit for cutting the work in the processing region; a cover unit which covers the processing region; and a light-blocking filter which is arranged on at least one surface of the cover unit and changes the degree of light-blocking in accordance with the light received from the processing region.
Owner:YAMAZAKI MAZAK KK
A cargo pallet detection method and system based on point cloud plane contour matching
ActiveCN107507167BLow costImprove detection accuracyImage enhancementImage analysisContour matchingPlane segmentation
The invention provides a cargo pallet detection method and system based on point cloud plane contour matching. The method includes the following steps: S1, original point cloud filtering; S2, point cloud plane segmentation; S3, generating a grid map through projection; S4, contour extraction; S5, contour matching; and S6, acquiring the relative position and posture. The system includes an original point cloud filtering module, a point cloud plane segmentation module, a module for generating a grid map through projection, a contour extraction module, a contour matching module, and a relative position and posture acquisition module. The method and the system are of low cost and high detection accuracy, and are basically not affected by illumination. There is no need for label laying or other operation, and there is no need to transform the storage environment. The method and the system are suitable for pallets of various colors and specifications, and have the advantages of high accuracy, low price, strong robustness, and the like.
Owner:SHANGHAI JIAO TONG UNIV
Sensing carpet, method and method used for monitoring pedestrian flow density in public place
InactiveCN102354374BEasy to installEasy to removeCounting mechanisms/objectsCommunication interfacePublic place
Owner:CHONGQING JIAOTONG UNIVERSITY
A cargo pallet detection system and method based on tof camera
The invention provides a cargo tray detection system and method based on a TOF (Time of Flight) camera. The system comprises a central control unit and the TOF camera, wherein the TOF camera is used for acquiring an RGBD image and transmitting the RGBD image to a central processing unit; the central processing unit is used for converting the RGBD image into a gray level depth image and taking a detected regular shape as a tray plane candidate region; if the tray plane candidate region contains at least two rectangular regions, the rectangular regions are used as branch hole candidate regions and pixel area of the branch hole candidate regions and central point coordinates of the branch hole candidate regions are calculated; an area ratio tij between any two branch hole candidate regions Ri and Rj in the tray plane candidate region is calculated; when two Ri and Rj which accord with a threshold value range are screened and remained, a cargo tray is detected; a middle point Oij of a connecting line of the central points of the remained Ri and Rj is used as the central point of the surface of the cargo tray; distance value d between the Oij and the TOF camera is obtained through gray level value of the Oij. The cargo tray detection system and method based on the TOF camera have the advantages of high precision, low price, strong robustness and the like.
Owner:SHANGHAI JIAO TONG UNIV
A human identification method based on sequential depth images
ActiveCN109190544BPrediction is accurateGood for human identificationCharacter and pattern recognitionNeural architecturesHuman bodyFeature vector
The invention discloses a human body identification method based on a sequence depth image, comprising: collecting the sequence depth image of a human body, and using a convolutional neural network and a recursive neural network to perform regression of human body joint points based on the sequence depth image to obtain the coordinate positions of the human body joint points ; Use the coordinates of the joint points of the human body to calculate the body posture feature vector, use the static feature classifier to identify, and obtain the human body identity recognition score of the static feature; extract the human body motion behavior feature from the sequence depth image, and use the dynamic feature classifier to perform Recognition to obtain the human body recognition score of dynamic features; the weighted calculation of the static and dynamic features of the human body recognition score to obtain the human body recognition score, and then obtain the human body recognition result. The present invention has strong robustness, and the accuracy rate is not affected by application scenarios.
Owner:HUAZHONG UNIV OF SCI & TECH
Mechanical rectification wave energy absorption power generation device
ActiveCN108825427BIncrease profitNot subject to temperature difference between day and nightHydro energy generationMachines/enginesSea wavesEnergy absorption
The invention relates to a mechanical rectification type sea wave energy absorbing power generation device. The mechanical rectification type sea wave energy absorbing power generation device comprises an energy capturing mechanism for capturing ocean wave energy and converting the ocean wave energy into kinetic energy of the energy capturing mechanism and an energy converting mechanism used for absorbing the kinetic energy of the energy capturing mechanism and converting the kinetic energy into electric energy. The energy converting mechanism comprises a mechanical rectification unit and a power generation unit. The mechanical rectification unit can convert the kinetic energy into the continuous one-way rotation mechanical energy of an input rotation shaft. The power generation unit is used for converting mechanical energy into electric energy. On the basis of an electromagnetic vibration energy collection device and mechanical rectification on the energy conduction process, irregularup-down reciprocating vibration energy of sea waves can be absorbed and converted into one-way rotation of a power generator rotation shaft, very high energy conversion efficiency and reliability areachieved, stable and efficient power supply can be provided for small beacons or ocean-going ships or other offshore infrastructures, the work duration is prolonged or the cruising capability is improved.
Owner:BEIHANG UNIV
A convenient cleaning grille lamp
ActiveCN106500001BNot affected by lightEasy to cleanLighting support devicesLight fasteningsGratingEngineering
The invention discloses a grating lamp facilitating cleaning, and belongs to the field of electronic devices. The grating lamp includes lamp panels, bulbs, and grates; bulb partitions are arranged in the lamp panels; circular through holes are formed in two sides of the bulb partitions and the lamp panels; rotation shafts are arranged on two ends of the grates; the rotation shafts are clamped in the through holes of the bulb partitions and the lamp panels; the number of the through holes is identical to the number of the rotation shafts of the grates, and positions of the through holes are corresponding to positions of the rotation shafts; the radian of the two ends is corresponding to the radian of the bulb partitions the lamp panels; and periphery surfaces of the lamp panels are coated with a fir pulp layer. The problem that people cannot conveniently clean the grating lamp, must spend lots of time and effort to scrub the grates one by one, and cannot completely clean the grating lamp, and a good cleaning effect cannot be achieved can be overcome.
Owner:安徽亮亮电子科技有限公司
A vehicle-mounted device with the function of real-time identification and early warning of fatigue levels in the whole driving cycle
The invention discloses a vehicle-mounted device having a driving complete period fatigue level real-time identification and early warning function. The device mainly comprises the following modules: a cumulative driving duration acquisition module which is used for judging the cumulative operation state duration of the vehicle and determining the cumulative driving duration of the driver; a workload acquisition module which is used for judging the high-speed driving cumulative workload of the driver; a GPS module which is used for accurately judging the current moment information; a circadian rhythm acquisition module which is used for judging the circadian rhythm cumulative degree of fatigue of the current driver through a moment information circadian rhythm table; a fatigue degree value calculation module which obtains the fatigue degree value of the driver of any moment; and an early warning module which is used for giving fatigue early warning information. According to the vehicle-mounted device, fatigue level judgment can be performed on any time period in the driving process so that the traffic accident can be reduced to a certain extent, the hazard caused by the traffic accident can be reduced and driving of the driver and public traveling are enabled to be safer.
Owner:WUHAN CITMS TECH CO LTD
Anti-tarnish treatment method for yellow rattan materials
InactiveCN108839179APlay an anti-tarnish effectAvoid deterioration of mechanical propertiesReed/straw treatmentWood impregnation detailsSlurryMaterials processing
The invention belongs to the technical field of palm rattan material processing, and particularly relates to an anti-tarnish treatment method for yellow rattan materials. The method comprises the steps that the yellow rattan materials are obtained by peeling freshly cut yellow rattans, the yellow rattan materials are immersed in an anti-tarnish slurry for achieving slurry hanging, and then the yellow rattan materials can be transported or stored after being placed under the room temperature condition for 20 minutes, wherein the anti-tarnish slurry is prepared from plasticizer modified starch,ethyl 2-aminobenzoate, nano-zinc dioxide, urea, hydroxymethyl cellulose, a curing agent, boric acid, diethylene glycol and water. Compared with the prior art, the anti-tarnish treatment method for theyellow rattan materials has the following advantages that by means of the anti-tarnish slurry, uniform slurry hanging on the surfaces of the yellow rattan materials can be achieved, and the slurry can rapidly cured into films under the room temperature condition, so that anti-tarnish effect on the yellow rattan materials is achieved; meanwhile, the anti-water-absorption effect can be achieved, and the mechanical property of the yellow rattan materials can be prevented from getting poor; and the yellow rattan materials treated through the anti-tarnish treatment method are transported or storedunder normal conditions, and the appearance color and the mechanical property of the yellow rattan materials cannot be affected.
Owner:阜南县慧宏柳木工艺品有限公司
Light-emitting diode display panel, manufacturing method thereof, and display device
ActiveCN104112758BAvoid scratchesNot affected by lightSolid-state devicesSemiconductor/solid-state device manufacturingDisplay deviceEngineering
The invention discloses a light-emitting diode display panel, a manufacturing method thereof, and a display device, and relates to the field of display technology. The light emitting diode display panel includes a thin film transistor backplane and a light emitting structure, and the light emitting diode display panel further includes a protective film, the protective film is located between the thin film transistor backplane and the light emitting structure, and the protective film covers The LED display panel displays gate lines and data lines in the display area. The protection film also covers the circuits around the display area of the LED display panel. The present invention adds a protective film process to the manufacturing process of the existing light-emitting diode display panel, which can effectively prevent the scratching of the thin-film transistor backplane by the evaporation mask and the static electricity problem caused by the evaporation mask when making the light-emitting structure.
Owner:BOE TECH GRP CO LTD
Wet land microwave remote sensing and monitoring method
ActiveCN101915918BLong-term stable free L-band signalNot subject to rain and fogRadio wave reradiation/reflectionForward scatterGps receiver
The invention discloses a wet land microwave remote sensing and monitoring method. In the method, based on the L-waveband microwave signal provided by a GNSS signal source, a GNSS-R receiver receivers a direct signal of the GNSS signal source and a forward scattered signal which is scattered by ground features and contains ground feature information and transmits the signals to a data processing and analyzing system for processing and analyzing. As the GNSS signal source of which the signal is received by the GNSS-R receiver is a collection of a plurality of navigation satellite groups and can provide long-term stable free L-waveband signals constantly. Therefore, in wet land monitoring, the GNSS signal source can operate normally for 24 hours in all kinds of weather without being influenced by rain, fog and light. The GNSS-R receiver of the invention is small volume, light in weight, low in power consumption and cheap, so the GNSS-R receiver has low operation cost compared with the conventional optical or microwave sensor.
Owner:DALIAN MARITIME UNIVERSITY
A multi-strategy anti-fraud face recognition method
ActiveCN108009531BLow costNot affected by lightAcquiring/recognising facial featuresFace detectionSkin colour
The invention discloses a multi-strategy anti-fraud face recognition method, comprising: Step 1. During the face detection process, detect whether there is a bright pupil generated by a near-infrared device at the position of the pupil of the eye, and detect the gray level of the skin color of the face at the position of the face In the interval, whether the variance meets the threshold, and judge whether it is a fraudulent attack; step 2, according to the dynamics of the face recognition process, in the face recognition verification process, based on the 3D face reconstruction of the Candide‑3 model, micro-expression detection is performed, Compare the similarity between the facial features and the 3D model between the adjacent 3 frames, and set a reasonable threshold to avoid overly similar faces.
Owner:BEIJING UNIV OF TECH
Array substrate, manufacturing method thereof, and display panel
ActiveCN109166865BNot affected by lightReduce photomask processTransistorSolid-state devicesDielectric layerMaterials science
The application discloses an array substrate, a manufacturing method thereof, and a display panel. In this application, the source pattern and the drain pattern are designed to be directly formed on the dielectric layer, and the traditional flat layer and passivation layer are replaced by the dielectric layer, and the drain pattern is also used as the anode pattern of the OLED device, thereby reducing the The photomask process, and the dielectric layer is made of a light-shielding material, which can protect the channel layer of the TFT from being affected by light, and is beneficial to ensure its stable performance.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Self-rotating movable exhibition stand for material exhibit display
ActiveCN112107197AWon't fallWon't breakShow cabinetsClimate change adaptationElectric machineryEngineering
The invention discloses a self-rotating movable exhibition stand for material exhibit display, and relates to the technical field of movable exhibition stands. By starting a first motor, the first motor enables a rotating wheel to rotate through an output shaft, and the exterior of the rotating wheel enables a rotating disc to rotate in a rolling groove through balls, so that exhibit materials atthe top of a jacking mechanism rotate, the jacking mechanism on the rotating wheel is not inclined in the exhibition stand through fixing supports and can rotate at a constant speed, and exhibits canbe collected into the exhibition stand by the jacking mechanism; by extending telescopic rods at the top of a top plate, the telescopic ends of the telescopic rods rotate rotating blocks through pins,so that the plurality of rotating blocks block a movable hole; when a rotating cover moves to the bottom of a supporting frame, a rotating hook fixes the rotating cover to the top of the supporting frame, so that the exhibit materials can be seen by people in a protective cover; and when the exhibit materials are collected in the exhibition stand, the rotating cover prevents the exhibit materialsfrom being damaged by external force.
Owner:武汉至道设计有限公司
Oil level instrument identification method based on multi-scene feature information fusion
PendingCN113496161AVersatilityNot affected by lightCharacter and pattern recognitionTemplate matchingImaging processing
The invention discloses an oil level meter identification method based on multi-scene feature information fusion. Due to one of various environmental factors such as light intensity, shooting angle, glass color and the like, great challenges are brought to image recognition of the liquid level instrument. The algorithm comprises the following steps of: firstly, carrying out preprocessing operations such as filtering on an input picture, then recognizing a scene and positioning an oil level gauge according to a template matching method, and finally carrying out final judgment through an algorithm judgment device. According to the method, the liquid level height of the instrument can be recognized through the image processing technology, circuit transformation is not needed, and cost is reduced. And the actual calculation amount after the algorithm is online is small, the condition of the main transformer oil level gauge can be fed back quickly and accurately, and the gauge with the low oil level can be alarmed and prompted in time.
Owner:国网陕西省电力公司渭南供电公司
Composite processing device and composite processing method
ActiveCN108472776BEasy to check visuallyNot affected by lightAdditive manufacturing apparatusIncreasing energy efficiencyEngineering
The invention provides a composite processing device and a composite processing method. The compound processing device includes: an additive manufacturing part, which irradiates energy to the workpiece in the processing area to perform additive manufacturing; a cutting processing part, which cuts the workpiece in the processing area; a cover part, covering the processing area; The light-shielding filter is arranged on at least one surface of the cover portion, and changes the light-shielding degree according to the light received from the processing area.
Owner:YAMAZAKI MAZAK KK
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