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147 results about "Sketch map" patented technology
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Method for realizing full three-dimensional intelligent virtual computer room
InactiveCN101820532ARapid positioningEffective judgmentClosed circuit television systemsSteroscopic systemsThree-dimensional spaceSimulation
The invention relates to a method for realizing a full three-dimensional intelligent virtual computer room, and belongs to the fields of computer graphics and virtual reality. The method comprises the following steps of: (1) simulating a full three-dimensional system structure and state; (2) monitoring and managing the running states of multiple kinds of large computer room equipment in real time; (3) performing monitoring, transmission and three-dimensional display on signals in real time based on a C / S architecture; (4) automatically laying out and wiring in a three-dimensional space system in real time; and (5) in a three-dimensional space, performing quick positioning, three-dimensional navigation and intelligent analysis on exceptional equipment. In the method, after a two-dimensional sketch map is changed into a full three-dimensional real-time intelligent layout map, according to equipment connection information updated by a server, all equipment is subjected to real-time layout and wiring at a client, the connection relationships of the multiple kinds of equipment are more clear and intuitively, the concept of layout is added, and a phenomenon that a flow chart only has a single function of the connection relationships is improved, so each equipment comprises definite real-time position information, the exceptional equipment is quickly positioned, and the navigation display and intelligent analysis in the three-dimensional space assist users to more effectively judge problems and solve problems.
Owner:SHANGHAI UNIV
City track traffic line turning-back capacity analysis method
ActiveCN101025766AThe process of analysis and calculation is intuitive and simpleClose to real operating conditionsRailway traffic control systemsSpecial data processing applicationsEngineeringBack regions
The invention is a method for analyzing the turning-back capacity of rail traffic lines, adopting simplified line layout and simplified train running time-distance sketch map to analyze constraints between trains: by setting a margin for each constraint, not only able to obtain turning-back interval but also able to obtain the margin of each constraint; listing the constraints according to the stay time in station and the stay time in turning-back region, thus not only able to obtain the current adopted time margins of the stay time in station and the stay time in turning-back region; the running time ti / Ti of train at each key point is extracted by a method of generating line synthesis speed limiting curve on the development diagram of turning-back lines, generating V-S and T-S curves by computer simulation. And the analyzing method is simple and visual, not only improving analyzing completeness and accuracy but also largely reducing workload of analyzers by computer simulation.
Owner:TRAFFIC CONTROL TECH CO LTD
SAR image sample generation method based on sketch and structure generation countermeasure network
ActiveCN109190684AImprove imbalanceOvercoming the disadvantage of non-differentiabilityCharacter and pattern recognitionNeural architecturesObject structureData set
The invention provides a SAR image sample generation method based on a sketch and structure generation antagonistic network, which mainly solves the problem of sample imbalance in the semantic segmentation of the SAR image. The method comprises the following steps of: (1) sketching a SAR image to obtain a sketch map; (2) according to the region map of SAR image, extracting the small extremely heterogeneous region; (3) constructing a paired data set of sketch blocks-SAR image blocks; (4) selecting the samples from the data set to compose the training set and the test set; (5) constructing a generating antagonistic network based on sketch information and structural constraints; (6) training the sketch fitting network, the discrimination network and the generation network alternately by sketch line loss, antagonistic loss and generator loss,; (7), inputting a test sketch block to the trained generation network to obtain a generated SAR image block. The invention can generate SAR image samples coinciding with the original SAR image ground object structure according to the sketch map, and can solve the sample unbalance problem of extremely uneven region classification of the SAR image.
Owner:XIDIAN UNIV
Perceptual loss and deep convolutional neural network-based sketch simplifying method
ActiveCN108510456ASolve the simplification problemImprove visual effectsImage enhancementNeural architecturesStochastic gradient descentData set
The invention discloses a perceptual loss and deep convolutional neural network-based sketch simplifying method. The method comprises the steps of: 1) obtaining data: obtain the data by using a sketchmap and corresponding label data; 2) processing data: transforming the sketch map and corresponding line sketch map of an image data set into a format required for training a deep convolutional neural network through preprocessing; 3) constructing a model: constructing a deep convolutional neural network suitable for sketch simplification according to a training objective; 4) defining a loss function; 5) training the model: calculating the loss value of the network according to the loss function, calculating the gradient of each network layer parameter through back propagation and updating parameters of each layer of the network through a random gradient descent method; and 6) verifying the model: verifying the trained model by using a verification data set and testing the generalizationperformance. The method disclosed by the invention has the advantages that sketches with rougher miscellaneous lines and unclear main structure lines can be processed by a sketch simplifying network;and the network has strong robustness to the influence of illumination.
Owner:SOUTH CHINA UNIV OF TECH
Geological survey method of tunnel face based on digital image
The invention discloses a geological survey method of a tunnel face based on a digital image. The geological survey method comprises the following steps of: A, confirming a target object and marking the tunnel face; B, photographing to the tunnel face by using a high-resolution digital camera to shoot a complete tunnel face region; C, calculating the proportion conversion coefficient of a real object and an image according to the distance of two marking points on the tunnel face and the pixel value of two points in the image; D, performing grey level transformation, color equalization, brightness / contrast adjustment, hue / saturation control and image filtering to logarithms; E, calculating all pixels in the digital image; F, calculating extended length of structural surface, total extension of unit area crack, linear fit of structural surface, viewing dip angle of structural surface and space structural surface parameter of structural surface by the binary image of the structural surface to obtain geological survey achievements of the tunnel face. The geologic sketch map of the tunnel face is obtained by the method, so that the geological sketch speed and the geological survey precision and accuracy are improved.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Gel-casting 3D printing preparation method for ceramic gradient material
InactiveCN104493952AImplement gradient distributionImprove work efficiencyCeramic shaping apparatusGradient materialAdditive ingredient
The invention discloses a gel-casting 3D printing preparation method for ceramic gradient material. The gel-casting 3D printing preparation method for the ceramic gradient material includes steps that 1) building a computer three-dimensional sketch map of the ceramic gradient material, slicing, and building a scanning route; 2) calculating ingredient proportions of different positions; 3) setting corresponding printing parameters; 4) preparing ceramic ingredient, organic monomer, cross-linking agent, initiator, catalyst and the like; 5) starting printing equipment to perform sol-gel 3D printing, pouring the ceramic ingredient, organic premixed liquid, initiator and catalyst to a printing head, and printing to form according to a set track and a set speed after mixing; 6) sintering the green body to prepare the ceramic gradient material. The gel-casting 3D printing preparation method for the ceramic gradient material has advantages that the gradient distribution for the ingredients is really realized through using a computer to control the ingredient proportions at different positions; the 3D printing technology belongs to a material increase preparing method, compared with a traditional technique, raw material is saved.
Owner:HARBIN UNIV OF SCI & TECH
Intelligent garage management application system and method
ActiveCN105489054AEfficient Parking SolutionsConvenient Parking SolutionTicket-issuing apparatusIndication of parksing free spacesWireless dataMarine navigation
The invention relates to an intelligent garage management application system and method. The system comprises a mobile application platform and a data processing platform, and the mobile application platform is connected with the data processing platform via the wireless network. The mobile application platform sends a parking stall request instruction to the data processing platform, the data processing platform sends a parking stall sketch map including parking stall information to the mobile application platform, after parking, the mobile application platform sends parking install information, including identification of a parking stall of the intelligent garage, to the data processing platform, and the data processing platform processes the parking stall information and then records and stores the vehicle parking information. The method comprises a navigation management application method of the intelligent garage and an inverse vehicle searching management application method of the intelligent garage. The system and method have the advantages that via wireless data exchange, a high-efficiency convenient parking scheme is provided for users, the users are guided to park and find the vehicle via navigation, and the problem that parking and vehicle searching are difficult and tedious is solved.
Owner:INTELLIGENT INTER CONNECTION TECH CO LTD
3D printing preparation method of polymeric gradient material
InactiveCN104552951AImplement gradient distributionImprove work efficiencyAdditive manufacturing apparatusPolymer scienceInorganic particle
The invention provides a 3D printing preparation method of a polymeric gradient material. The method comprises the following steps: (1) preparing inorganic components, polymers and other raw materials; (2) establishing a three-dimensional computer sketch map of the polymeric gradient material, performing slicing processing, and establishing a scanning path; (3) calculating the component ratios at different positions; (4) setting the corresponding printing parameters; and (5) starting printing equipment for performing 3D printing, simultaneously injecting the inorganic particles and polymers into the printing head, heating, mixing, and printing and forming according to the set track and speed. The method disclosed by the invention has the advantages that the raw material component ratios at different positions are controlled by the computer, so that gradient distribution of the components is really realized. The 3D printing technology is a material increase manufacturing method, and compared with the traditional process, the method disclosed by the invention has the advantage that the raw materials are saved.
Owner:彭晓领
Project management system
InactiveCN106408172ASimple monitoring processEasy to judgeGeometric image transformationResourcesProject completionMonitoring system
A project management system is disclosed and comprises a project progress database, a project progress sketch map, a project progress monitoring system, a project standard template picture which is generated via a project construction design drawing, a project implementation site imaging system, an implementation site processing system and a remote monitoring terminal. Via the project management system, a project implementation site can be monitored remotely; monitoring operation can be conducted in a simple, convenient and direct manner; manpower resources can be saved. Feedback on construction conditions of an implementation site can be given timely due to real time monitoring operation, convenience of determining operation can be realized, and high result accuracy can be achieved. Project progress can be automatically adjusted and monitored according to change of implementation conditions via the project management system, and project completion time can be effectively monitored.
Owner:广东达安项目管理股份有限公司
Polarimetric SAR (synthetic aperture radar) terrain classification method based on semantic information and polarimetric decomposition
ActiveCN103294792AEfficient extractionImprove regional consistencySpecial data processing applicationsSynthetic aperture radarClassification methods
The invention discloses a polarimetric SAR (synthetic aperture radar) terrain classification method based on semantic information and polarimetric decomposition. The polarimetric SAR terrain classification method includes performing mean shift on a span image, extracting a sketch map of the span image, extracting a line segment gathering region in the sketch map by an region extracting technology based on the semantic information, merging span image mean shift over-segmentation regions based on the line segment gathering region as well as by the aid of a critical region majority vote merging strategy and based on a polarimetric feature merging strategy, acquiring an image segmentation result, and fusing the image segmentation result based on the semantic information and an H / alpha-Wishart classification result based on an MRF (markov random field) to acquire a final classification result. The semantic information, an image processing technique and a polarimetric scattering property are combined by the polarimetric SAR terrain classification method, the problem of bad region consistency of existing classification techniques based on the polarimetric decomposition to classification results with gathering-featured surface features (like forest, building groups and the like) is mainly solved, and region consistency and boundary retainability of the classification results with the gathering-featured surface features are improved.
Owner:XIDIAN UNIV
GIS based optical cable same-route analysis method and device
ActiveCN104104595AHigh precisionImprove analysis efficiencyData switching networksEngineeringAnalysis method
The invention discloses a GIS based optical cable same-route analysis method and device; the method comprises the following steps: setting up a laying segment on a line segment in an optical cable laying field sketch map displayed by a GIS map, and simulating and laying the to-be-laid optical cable on the laying segment; setting up a corresponding incidence relation between the optical cable and the laying segment according to a topology relation of the GIS map; carrying out optical cable same-route analysis according to the corresponding incidence relation. The method and device lead the GIS map into optical cable same-route analysis, calculation through a sketch map mode is omitted, and a relation between the optical cable and the laying segment is set up through a GIS map topology mode, thus realizing optical cable same-route analysis between the optical cable and the laying segment and the optical cable same-route analysis of bearing business, thereby improving same-route analysis result accuracy and analysis efficiency, and bringing conveniences for optical cable same-route analysis of a user.
Owner:HANDAN BRANCH OF CHINA MOBILE GRP HEBEI COMPANYLIMITED
Method for rapidly and safely predicting tunnel face of underground cavity on basis of image
ActiveCN103698817ARealize automatic predictionImplement extractionOptical prospectingCharacter and pattern recognitionLithologyClassified information
The invention relates to a method for rapidly and safely predicting a tunnel face of an underground cavity on the basis of an image. The method comprises the following steps of 1, shooting by an infrared camera to acquire a tunnel face image in a current mileage; 2, carrying out image preprocessing on the tunnel face image; 3, carrying out clustering analysis; 4, carrying out lithologic identification to obtain lithologic classified information; 5, carrying out edge detection on the image preprocessed in the step 2; 6, carrying out boundary extraction to obtain bedding and jointing information of the tunnel face; 7, drawing a geologic sketch map of the current tunnel face by combining the lithologic classified information and the bedding and jointing information, and obtaining structural surface information of the current tunnel face; 8, moving to a next mileage and repeatedly carrying out the steps 1 to 7; 9, according to the extracted structural surface information, carrying out three-dimensional geologic modeling; 10, according to a model formed by the three-dimensional geologic modeling, carrying out rock mass analysis, predicting stability of rock masses and finally obtaining a cavity safety predicting result. Compared with the prior art, the method has the advantages of low noise, visual modeling and the like.
Owner:SHANGHAI CHUANHAI INFORMATION SCI & TECH
Pressing device closed-cycle control system
The present invention relates to a closed loop control system of a press, which pertains to the technical field of a control system of the press. The present invention is mainly characterized in that a coder is connected and arranged at the relevant moving part by an industrial field bus, the industrial field bus is connected with DeviceNet host station, and the DeviceNet host station exchanges data with a PLC programmable logic controller; a touch screen and an office computer adopt a closed loop system which consists of Ethernet and the PLC programmable logic controller; the present operation of a lathe can be reflected in real time under the support of various software programs; by using the closed loop control system, the safety of the lathe can be greatly increased, an automatic production line interface is arranged, the real-time operation information of the lathe can be displayed on the touch screen in the form of character, flow chart, sketch map, and the like, for convenient understanding, the statistics of relevant parts can be carried out according to the design parameters of the lathe so as to remind users of regular maintenance. The present invention can obviously increase the work efficiency and facilitate the arrangement and statistics of the work for supervisors.
Owner:YANGLI GRP CORP LTD
Gold ion imprinting magnetic adsorbent as well as preparation method and application thereof
InactiveCN107376876AGood choiceSimple methodOther chemical processesProcess efficiency improvementCross-linkFunctional monomer
The invention provides a gold ion imprinting magnetic adsorbent as well as a preparation method and application thereof. The adsorbent is prepared from a magnetic Fe3O4 core, a SiO2 layer, an MPS coating layer and a PVIM modified IIP coating layer, wherein the outside of the magnetic Fe3O4 core is sequentially wrapped by the SiO2 layer, the MPS coating layer and the PVIM modified IIP coating layer, and the IIP coating layer is in bond connection with imidazolyl. The preparation method of the adsorbent comprises the following steps: utilizing a magnetic Fe3O4 nano particle as the core and preparing Fe3O4SiO2MPS with a core-shell structure by utilizing a silica gel coupling method and utilizing TEOS and MPS as coupling agents; triggering polymerization reaction by utilizing a surface imprinting technology and combining free radical, utilizing Au(III) as a formwork ion, VIM as a functional monomer, EGDMA as a cross-linking agent and AIBN as an initiator, and synthesizing PVIM functionalized PVIM-Au-IIP on the surface of the MNPs to obtain a magnetic material coated with the IIP coating layer; utilizing an HCl solution containing thiourea to clean the material and removing the formwork ion to obtain the gold ion imprinting magnetic adsorbent. The synthesis sketch map of the adsorbent is shown in the description. The method can be used for simply and efficiently preparing the adsorbent which has high selectivity, high adsorption capacity and quick adsorption kinetic performance to Au(III), and the adsorbent has a good application prospect in the field of Au(III) adsorption.
Owner:WUHAN UNIV
Multi-type combined-hole-group numerical control processing method
InactiveCN105867309ASimplify work proceduresWith automatic programming functionProgramme controlComputer controlNumerical controlSingle type
The invention discloses a multi-type combined-hole-group numerical control processing method. The method comprises the following steps of step1, establishing a hole group distribution database, a hole type database, a hole processing technology parameter database and a numerical control processing code database; step2, establishing a man-machine interaction interface, logging and calling data of the hole group distribution database and generating a simulation hole group distribution sketch map; step3, establishing the man-machine interaction interface, logging and calling data of the hole type database, the hole processing technology parameter database and the numerical control processing code database; step4, setting a main shaft moving path optimization principle, optimizing calculation and automatically generating a main shaft moving optimization path; and step5, according to the main shaft moving optimization path, automatically generating a hole-group numerical control processing code program. In the invention, generation of single-type hole group and multi-type combined-hole-group processing codes can be realized; a work program is simple; an automatic programming function is possessed; cost is low and the method is suitable for parts used for processing regular hole groups.
Owner:TIANJIN UNIV
Reconnaissance method, device and network optimization equipment
InactiveCN102186183AImprove survey efficiencyReduce labor costsNetwork planningLaser rangingLongitude
The embodiment of the invention provides a reconnaissance method, a reconnaissance device and network optimization equipment. The reconnaissance method comprises the following steps of: acquiring longitude and latitude parameters of an indoor space in which the equipment is by utilizing a global positioning system (GPS) and assisted global positioning system (A-GPS) module; acquiring directionality parameters of the indoor space by utilizing a compass module; acquiring a spatial distance parameter of the indoor space and a position parameter of the equipment in the indoor space by utilizing a laser ranging module; and marking a geographic sketch map of the equipment in the indoor space on a display module by utilizing the longitude and latitude parameters, directionality parameters and spatial distance parameter of the indoor space and the position parameter of the equipment in the indoor space. The embodiment of the invention can improve the reconnaissance efficiency and save the labor cost.
Owner:吴长松
Personnel location system and method in complex unknown indoor environment
ActiveCN106851578ARealize indoor three-dimensional positioning functionHigh positioning accuracyWireless commuication servicesLocation information based serviceStructure chartWalking time
The invention discloses a personnel location method and a personnel location system in a complex unknown indoor environment. The method comprises the steps of generating an indoor structure chart of a building and a position sketch map of each of three base stations close to the building in advance by modeling according to estimation information of the building, position information of the three base stations close to the building and position information between the base stations; computing a moving path of the personnel according to walking orientation, walking displacement and walking time of the personnel during a moving process; and extracting collected data variation feature values, clustering and analyzing data variation features, judging whether a motion state of the current personnel meets a geographic label attribute, and if yes and an known geographic label matched with the current personnel exist, matching the position of the current personnel to the corresponding geographic label of the indoor structure chart. The method and the system provided by the embodiment of the invention have the advantages of complex application environment, high location accuracy and good system stability, and are applicable to occasions such as fire fighting, task execution of swat team or anti-terrorist drill.
Owner:上兵智能科技(山东)有限公司
Sketch map extraction method for polarization SAR image
The invention provides a sketch map extraction method for a polarization SAR image. The method comprises the steps that the polarization SAR image to be classified is input, and refined Lee filtering is carried out on the SAR image; a weighted edge filter is constructed to detect the constant false alarm edge of the image processed in the step 1 to acquire a polarization energy map; a weighted gradient filter is constructed to detect the gradient edge of the image processed in the step 1 to acquire a gradient energy map; wavelet transformation is carried out on the polarization energy map and the gradient energy map; different policies are constructed to fuse high frequency and low frequency sub-bands acquired through wavelet transformation; the polarization energy map and the gradient energy map are fused, and non-maximal value suppression is carried out on the fused maps to acquire an edge map; sketch operator tracing is carried out on the edge map to acquire sketch lines; and a statistical hypothesis test method is constructed to select the sketch lines and acquire a polarization sketch map. Polygon and noise-induced pseudo-boundary phenomena are suppressed, and the structure information of the polarization SAR image is accurately characterized.
Owner:XIAN UNIV OF TECH
Image automatic recognition system based on wafer internal defect detection
InactiveCN106530287AAvoid pollutionReduce labor costsImage enhancementImage analysisImaging analysisImage segmentation
The invention relates to the technical field of semiconductor manufacturing and especially relates to an image automatic recognition system based on wafer internal defect detection. On the basis of data analysis, an image analysis system comprising image segmentation and morphological denoising is used, the original image obtained by the ultrasonic scanning of a wafer is analysis, the information of positions and sizes of a grey edge and a bubble defect in the wafer is obtained, then the information is stored into a corresponding database, through calling the corresponding information, a defect sketch map and a trend chart which satisfies a client requirement is automatically generated, thus the abnormality in the wafer process and the abnormality of a machine platform are effectively and timely found, the labor cost is reduced, the pollution of the machine is avoided, and thereby the unnecessary loss is reduced.
Owner:WUHAN XINXIN SEMICON MFG CO LTD
Ray completion region graph and characteristic learning-based SAR (synthetic aperture radar) image segmentation method
ActiveCN104408458AAccurately reflectAccurate segmentationImage enhancementImage analysisLearning basedSynthetic aperture radar
The invention discloses a ray completion region graph and characteristic learning-based SAR (synthetic aperture radar) image segmentation method. The problem that a large homogenous region such as a farmland cannot be accurately segmented by a conventional segmentation method is mainly solved. An implementation process comprises the following steps: 1, obtaining a sketch map of an input SAR image by using an initial sketch model; 2, completing sketch lines by virtue of a ray clustering method, and acquiring a region graph; 3, segmenting the SAR image into a concentrated region, a homogenous region and a structural region of a pixel space by utilizing the region graph; 4, performing characteristic learning and clustering on the concentrated region and the homogenous region by utilizing a bag-of-words model respectively, performing watershed segmentation and sketch line-guided superpixel combination on the structural region, and combining combined superpixels to the homogenous region to finally obtain an SAR image segmentation result by utilizing gray characteristics. Compared with the prior art, the method has the advantages that the segmentation result is high in region consistency, and boundaries and line targets are positioned more accurately.
Owner:XIDIAN UNIV
An unsupervised target detection method based on prior information and aircraft shape in remote sensing images
ActiveCN109145850ASmall amount of calculationShorten the timeScene recognitionImaging interpretationPrior information
The invention discloses a remote sensing image unsupervised target detection method based on prior information and aircraft shape, which mainly solves the problems of blind positioning and slow positioning speed of optical remote sensing image target detection in large and complex scenes at present. The invention adopts an unsupervised method for aircraft positioning and accurately positioning. The realization steps are as follows: 1. establishing the initial sketch model for the original drawing and extracting the initial sketch; 2. according to the position relation of the line segments in the sketch map, finding out the sketch line segments which may constitute the wing of the aircraft; 3. from the result of the previous step, the sketch line segment that can compose the symmetrical wing being found; 4. using the information of the sketch map and the line and surface of the original map, the region around the sketch line segment of the symmetrical wing being grown to obtain the surface of the aircraft; 5. the outer rectangular frame being obtained according to the surface area of the aircraft, and the outer contour of the aircraft being obtained at the same time, so that the precise positioning can be realized. Fast positioning of airplane target in optical remote sensing image is realized, which can be used for airplane target recognition and image interpretation in opticalremote sensing image.
Owner:XIDIAN UNIV
Main beam section pneumatic self excitation force whole-course numerical modeling method
InactiveCN101261651ARealize time-domain simulationGuaranteed calculation accuracySpecial data processing applicationsTime domainDynamic equation
The invention relates to a girder section pneumatic self-excitation force full-process value simulation method, aiming at solving the problem that the time-domain of girder section pneumatic self-excitation force is a difficult point for bridge buffeting time-domain analysis and realizing the feasibility and the validity of a pneumatic self-excitation force time-domain method . On the basis of existing dynamic equation derivation, a unit-Aero-dyn18 unit which is specially used for simulating pneumatic rigidity and dynamic damp is established and the relevant parameters, the characteristics and the structure sketch map of the unit are provided. The additionally arranged Aero-dyn18 unit on the basis of a bridge structure finite element initial model and the adoption of a CFD technique to define the relevant parameters of the Aero-dyn18 unit can realize the full-process value simulation to the girder section pneumatic self-excitation force. Compared with the existing pneumatic self-excitation force time-domain method, the method is simple and practical, the analysis efficiency is largely enhanced and the cost is saved at the same time. The method can be easily generalized and adopted by engineering staff.
Owner:SOUTHEAST UNIV
Sketch map and prior constraint based high resolution SAR image road network detection method
ActiveCN108898101AAccurate screeningPrecise positioningCharacter and pattern recognitionAlgorithmSemantics
The invention discloses a sketch map and priori constraint based high-resolution SAR image road network detection method, which mainly solves the problem that the road detection accuracy of the priorart is low. The scheme includes: 1) using a sketch model of an SAR image to obtain a sketch map of surface feature sparse representation; 2) extracting suspected road sketch line segments from sketchline segments representing multiple semantics according to a prior constraint and statistical information of a road; 3) calculating the spatial extension degree and the grayscale distribution connection degree of other sketch lines in a neighborhood region for the current suspected road sketch line segments, and combining the two features to further extract sketch line segments representing the road; and 4) performing heuristic connection on the sketch line segments and performing superpixel segmentation around the connected sketch line, and determining a final road region according to the segmentation result. The invention improves the accuracy of road detection, reduces a large number of false alarms, and can be used for high-resolution SAR image road network detection of complex large scenes.
Owner:XIDIAN UNIV
Apparatus and method for generating sketch map information in portable terminal
ActiveUS20110137550A1Instruments for road network navigationNavigational calculation instrumentsComputer scienceGenerating unit
Provided is an apparatus and method for generating a sketch map in a portable terminal. The apparatus includes a sketch map generating unit. The sketch map generating unit collects information about route points of the portable terminal by using location information, generates a sketch map message including the route information, and shares the generated sketch map message with another user.
Owner:SAMSUNG ELECTRONICS CO LTD
Region graph and statistic similarity coding-based SAR (synthetic aperture radar) image segmentation method
ActiveCN104408731AGood distinctionGood segmentation effectImage enhancementImage analysisSynthetic aperture radarImage segmentation
The invention discloses an region graph and statistic similarity coding-based SAR (synthetic aperture radar) image segmentation method. The problem that characteristics of an image are required to be manually extracted by experience in the prior art is mainly solved. The method is implemented by the following steps: 1, extracting a sketch map according to an SAR image sketch model, and completing the sketch map; 2, extracting an region graph according to the completed sketch map; 3, training a stacked noise reduction auto-coding network of each sub-region of which the pixel number is more than a threshold value in a concentrated region and a homogenous region; 4, performing structural characteristic coding on the network of each sub-region of the concentrated region and the homogenous region to obtain a structural characteristic expression of each sub-region; 6, performing hierarchical clustering on the concentrated region and the homogenous region to obtain segmentation results of the concentrated region and the homogenous region respectively; 6, segmenting a structural region to obtain a final SAR image segmentation result by utilizing an average ratio algorithm. According to the method, the segmentation result is higher in region consistency, ground object distinguishing effects are improved, and the method can be used for target detection and identification.
Owner:XIDIAN UNIV
Method for calculating working performance of static-pressure sliding seats on basis of fluid-solid coupling effect
ActiveCN107169158AMake up for the lack of work performanceThe result is accurateDesign optimisation/simulationSpecial data processing applicationsStress conditionsCoupling
The invention discloses a method for calculating working performance of static-pressure sliding seats on the basis of a fluid-solid coupling effect. The method comprises the following steps of: (1) analyzing stress condition of a static-pressure sliding seat according to an actual working condition, and establishing a sliding seat stress analysis sketch map; (2) simplifying the sliding seat to a thin plate model and an oil pad model according to a thin plate deformation theory and a basic structure size of the static-pressure sliding seat; (3) calculating pressure distribution and oil film thickness change of the static-pressure sliding seat oil pad model, and establishing an equation; (4) calculating deformation condition of the static-pressure sliding seat thin plate model under the action of external force, and obtaining a deflection function of the static-pressure sliding seat thin plate model; (5) establishing a sliding seat-oil pad fluid-solid coupling model through a mutual coupling relationship between sliding seat deformation and the oil film thickness change, and establishing a dynamic balance equation of the sliding seat-oil pad fluid-solid coupling model; and (6) dynamically analyzing the working performance of the static-pressure sliding seat under the actual working condition by utilizing matlab software so as to finally obtain fluid-solid coupling effect-based working performance valuation of the static-pressure sliding seat under the actual working condition.
Owner:BEIJING UNIV OF TECH
Drawing method and device for sketching
ActiveCN109325986AAutomate the processDrawing from basic elementsEnergy efficient computingComputer scienceSketch map
The invention discloses a drawing method and device for sketching. The method comprises the following steps of acquiring a selected image, and carrying out gray processing on the selected image to obtain a processed image; according to the gray value of pixel points in the processed image, establishing the gray distribution curve of all pixel points in the processed image; dividing all pixel points of the processed image into several groups by taking the minimum points in the graph as segmentation points; normalizing the gray value of each pixel point located in the same group to obtain the average gray value of each group; according to the position of pixel points in each group in the processed image, determining the corresponding drawing line sub-paths of each group, and determining thedrawing times of each drawing line sub-paths according to the average gray value of each group; according to the drawing times of each drawing line sub-path and each drawing line sub-path, calculatingthe total drawing line path, and drawing the sketch map of the selected image according to the total drawing line path. By implementing the embodiment of the invention, the sketch map of the selectedpicture can be automatically drawn according to the selected picture, and the sketch map of the selected picture can be obtained.
Owner:GUANGDONG INTELL VISION TECH CO LTD
Computer virtual three-dimensional scenario library-based synthetic shooting system
InactiveCN102625130ALow costThe effect is real and believableStereoscopic photographySteroscopic systemsGraphicsVirtual space
The invention discloses a computer virtual three-dimensional scenario library-based synthetic shooting system, which comprises shooting equipment, a three-dimensional scenario library, a shot information acquisition and real-time synchronization module, a shooting assisting module, an information integration module, a scenario rendering module and an image synthesis module, wherein the shooting equipment can project an effect sketch map of a virtual three-dimensional scenario onto a backdrop, and does not produce any projection on the backdrop at the moment of shooting; the information integration module integrates the position and direction information of the shooting equipment and information shot by the shooting equipment to obtain virtual spatial position information; the scenario rendering module renders a virtual scenario picture which is completely matched with a real shooting parameter and a real shooting environment; and the image synthesis module synthesizes a virtual scenario image and an original image to generate a synthetic image. The synthetic shooting system is low in cost and free from the influence of natural conditions, has authentic effects, and can be widely applied to the photographic industry, and a sufficient selective space and a sufficient reaction space can be provided for staff in the photographic industry.
Owner:梅玉洋
SAR (specific absorption rate) image segmentation method based on hierarchy visual semantics
The invention discloses an SAR (specific absorption rate) image segmentation method based on hierarchy visual semantics, which mainly solves the problems of difficulty in maintaining of area uniformity and inaccurate positioning of boundaries and line targets in the prior art. The SAR image segmentation method comprises the following steps of 1, according to a sketch map of SAR images, extracting an area map of the SAR images, and building the hierarchy visual semantics; 2, according to the area map, segmenting the SAR images into focusing, structural and homogenous areas; 3, segmenting the focusing area; 4, segmenting the structural area; 5, designing a positioning line object of the visual semantic rule in the structural area; 6, segmenting the homogenous area; 7, combining the segmenting results of the focusing, structural and homogenous areas and the line object, and obtaining the final segmenting result. The method has the advantages that the uniformity of the areas in the SAR images is maintained, the positioning accuracy of the boundaries and the line objects is improved, the good segmenting effect of the SAR images is realized, and the method can be used for the subsequent target classification, identifying and tracking.
Owner:XIDIAN UNIV
Large field of view image sharpening device and method based on focal plane Hartmann wavefront sensor
ActiveCN110146180AIncrease restore areaGood field of view divisionOptical measurementsWavefront sensorFull recovery
Owner:重庆连芯光电科技有限公司
Features
- R&D
- Intellectual Property
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