806 results about "Vector diagram" patented technology

The invention provides a method for rapidly constructing a three-dimensional building scene through an actual projective image, which concretely comprises following steps of: firstly, extracting the top surface of a building through the actual projective image, obtaining a plane vector diagram, and simultaneously obtaining a vector plane coordinate; secondly, respectively carrying out building top surface triangularization process and ground polygonal triangularization process for the plane vector diagram obtained from the first step and generating a building model and a ground model through combining digital surface model data and digital height model data; thirdly, combining the building model and the ground model to form a three-dimensional scene model; fourthly, carrying out veining mapping superposition for the three-dimensional scene model and the actual projective image and generating the three-dimensional building scene. The method accelerates the modeling speed of the three-dimensional building scene and reduces the manual operation time of modeling mapping design. When the method is used, once modeling and vein mapping can be carried out to a specific zone; true and effective three-dimensional visual effect is obtained; and the working capacity of scene modeling is greatly lowered.

The present invention discloses a residential house chart building structure recognition and functional area planning and designing method and system. The method comprises a first step of acquiring a residential unit vector diagram, wherein the residential vector diagram comprises walls and doors and windows, and walls and doors and windows form closed rooms; a second step of acquiring specific information about usage, walls and windows and doors of each closed room; and a third step of selecting a reference wall, traversing all walls, and recognizing building structures and planning and designing the functional areas in the closed rooms sequentially according to feature models of the residential building structure and the functional area structure, so as to form a residential vector diagram with all functional area names. According to the method, the functional areas beneficial to living are divided optimally by combining the feature models of the residential building structure and the functional area structure only according to the residential unit diagram or the residential unit vector diagram. The divided optimal functional areas are a reference for users or are used in household design later, and deliver a good effect.

The invention discloses a home decoration intelligent design method and system. The home decoration intelligent design method comprises the steps of 1) obtaining a house type vector diagram; identifying walls, doors and windows from the vector diagram, wherein the walls, the doors and the windows compose closed habitable rooms; and planning and designing functional zones based on a building structure and purpose definition in the closed habitable rooms; 2) obtaining information of the closed habitable rooms and the functional zones, specifically including, shape, position, area, door and window information, structure and specification information, position information of adjacent functional zones; 3) diagnosing the habitable room and functional zone information of the house type based on a residential building design standard; and 4) carrying out layout planning and design for each habitable room and each functional zone and finally adding corresponding home appliances and/or furniture products based on a pre-obtained home decoration design empirical rule and in combination with the information of each functional zone and/or demand research information of a user.

The invention provides an object tracking method and system based on a depth characteristic flow, a terminal and a medium; the method comprises the following steps: using a visual sensor to capture acontinuous video frame sequence, and obtaining the current frame image from the video frame sequence; detecting a mobile object, determining at least one key frame containing the mobile object, building a mapping relation between the current frame image and corresponding characteristics in the key frame image, and obtaining an optical flow estimated vector graph; respectively filtering static objects in the key frame image so as to obtain a motion characteristic extraction network related to the mobile object, and extracting a characteristic graph; propagating the key frame mobile object characteristics onto the current frame. The method employs the depth characteristic flow to process images, is fast in speed, cannot affect video segmentation and task identification, and can use an end-to-end mode to map, thus improving precision.

The invention discloses an unmanned aerial vehicle cluster cooperative reconnaissance method based on crossover and variation pigeon flock optimization, which comprises the implementation steps of: S1: initialization of a reconnaissance environment; S2: initialization of a multi-dimensional vector diagram and strategy updating; S3: method design based on crossover and variation pigeon flock optimization; S4: receding horizon control based on crossover and variation pigeon flock optimization; and S5: construction of a target function of crossover and variation pigeon flock optimization. Simulation of unmanned aerial vehicle cluster cooperative reconnaissance is carried out in a three-dimensional space. The main advantages of the method are mainly shown in two aspects that: in one aspect, the method is short in used time, can be used for dynamic planning, and compared to common methods, such as a Vorono graph, a game theory and the like, is high in convergence rate; and in the other aspect, reconnaissance efficiency is high, and in a case that a coverage region is not large, a target point can still be effectively reconnoitered.

The invention provides a processing method and a device for a multi-platform multi-resolution application program interface so as to solve the problem that current application program interfaces cannot adapt to multiple platforms and multiple resolutions. The method comprises the steps: reading relative data of a vector diagram used for generating an application program interface, querying the screen resolution of a current system platform, scaling the relative data of the vector diagram in corresponding proportion according to the screen resolution of the current system platform and acquiring data already scaled. One installation package of the invention can adapt to multiple resolutions on the same platform, thereby greatly diminishing the pressure in designing the application program interface and the layout, decreasing the workload of making and maintaining pictures, significantly decreasing the volume of the installation package and consequently saving various resources for making the installation package.

The application provides a method and system for commodity picture displaying. The method comprises the following steps: obtaining a commodity picture; obtaining associated additional commodity information according to the commodity picture; and rendering the additional commodity information into a vector diagram layer and overlaying the vector diagram layer on the commodity picture for displaying. According to the application, the efficiency of promotion information adding of the merchant can be improved; the storage space of the server can be saved; and the purchaser experience can be improved.

The invention provides a three-dimensional terrain and radar terrain generating method based on S-57 electronic chart data. The three-dimensional terrain and radar terrain generating method comprises the steps that firstly, an elevation vector graph based on an electronic chart is generated based on the S-57 electronic chart data and through the combination of GDEM data, and the elevation vector graph serves as an uniform data source; secondly, the elevation vector graph undergoes conversion, simplification and texture mapping to generate a scene three-dimensional terrain model; at last, based on the elevation vector graph and through cutting of the data, radar terrain data generation and water depth data and navigation target data extraction are respectively completed at different sampling intervals according to needs. The three-dimensional terrain and radar terrain generating method based on the S-57 electronic chart data overcomes the defects that an existing terrain model is not uniform in data matching, not high in precision and poor in running efficiency; the three-dimensional terrain data generating technology, the GPS positioning technology and the GIS geological information technology are integrated, so that the three-dimensional scene running efficiency and the three-dimensional scene vividness are guaranteed, and meanwhile, accurate matching between scene three-dimensional terrain data, radar terrain data, water depth data and navigation target data and the electronic chart is realized.

The invention relates to a method for realizing vector electrocardiograph, which projects the solid heart vectors on the front, horizontal, and side three planes, to form a plane electrocardiograph vector diagram, and sets the projections of several virtual lines on different angles and three plant rings, to form the liner expressed vector electrocardiograph. The virtual lines have 0-18 axles in 0-360 degrees of each plane to generate total 54 vector electrocardiographs. The invention can generate 1-78 coupled synchronous and/or selective twelve electrocardiographs, vector electrocardiograph, time electrocardiograph, steering time electrocardiograph, continuous electrocardiograph, or the like, while it can synchronously switch between one-dimension, two-dimension and three-dimension electrocardiographs.

The invention discloses a method for judging false wiring of a three-phase three-wire electric energy meter. The method is characterized in that the method comprises the following steps that (1) parameters of a first component and parameters of a second component in the three-phase two-component electric energy meter are obtained; (2) a voltage vector mother board hexagon vector diagram of a three-phase three-wire metering device is drawn; (3) a two-phase current vector diagram of the three-phase three-wire metering device is drawn; (4) a four-wire vector diagram is drawn; (5) the four-wire vector diagram is compared with the voltage vector mother board hexagonal vector diagram and the two-phase current vector diagram in order to obtain correct wiring judgment. According to the method, false wiring of the three-phase three-wire electric energy meter can be quickly judged so that a judgment result can be provided. Meanwhile, field workers can use the method to conduct manual, quick and effective wiring interpretation. The method can be widely applied to algorithms for judging false wiring of field calibration instruments of electric energy metering devices.

The invention provides a method and system for conducting dynamic graphical monitoring on complex service processes. The method comprises the steps of determining an occurred service process according to multiple pieces of real-time-collected service information, wherein each piece of service information comprises a service identifier, a task name and a task execution instruction or a task executing result, each service process comprises executed task information, the executed task state and triggered task information, and each piece of task information comprises the task name and the task executing instruction or the task executing result; determining the service process to occur and obtaining the structural relation between the occurred service process and the service process to occur through the incidence relation between the task names of the pieces of service information contained in the occurred service process and the non-occurred service process ; showing the obtained structural relation of the service processes in a vector-diagram mode. The invention further provides a system for conducting dynamic graphical monitoring on the complex service process.

The invention provides a method and device for displaying fonts in a terminal device. The method includes the steps of obtaining character codes of to-be-displayed characters in the terminal device; obtaining vector diagram information of the fonts corresponding to the obtained character codes from a font resource library of a server, wherein the font resource library is used for storing the character codes and the vector diagram information of the fonts corresponding to the character codes; drawing the obtained vector diagram information of the fonts in a page of the terminal device to display the fonts of the to-be-displayed characters. By means of the method and device, the problem that the system fonts do not support page displaying in the terminal device can be effectively solved, and the displaying efficiency of the non-system fonts in the terminal device can be further improved.

The invention discloses a rapid detection method for false wiring of a high-voltage three-phase three-wire electric energy metering device. The method comprises that a voltage value of a first component voltage, a voltage value of a second component voltage, a voltage difference value between the first and second component voltages, a phase difference between the first component voltage and a first component current, a phase difference between the second component voltage and the first component current and a phase difference between the second component voltage and a second component current are measured; when disconnection or polarity reversal connection does not exist in a voltage transformer, the voltage input phase sequence is determined; a vector diagram is determined; a special angle suitable for the phase difference between the first component voltage and the first component current and another special angle suitable for the phase difference between the second component voltage and the second component current are determined; the phase-following relation of the voltage and current is determined; the vector diagram is improved; and a false wiring power expression and a correction coefficient are determined. The detection method can detect false wiring of the high-voltage three-phase three-wire electric energy metering device rapidly and accurately.

The invention discloses a heuristic route segment path-finding method for ship route design, comprising heuristic search, a heuristic shortest route segment path-finding algorithm analysis method, an A* algorithm heuristic principle and an improved shortest path algorithm, wherein the heuristic route segment path-finding algorithm puts forwards a method establishing a navigable path tree to reduce meaningless path searching time by being based on a point to point navigable line algorithm and combining with the A* algorithm heuristic principle. By analyzing the particularity of the route segment path-finding algorithm based on a vector diagram in the ship route design, the route segment path-finding algorithm is improved according to an analysis result, the accuracy of a generated route segment path is enhanced and the path-finding efficiency is further increased. Lands, islands and other barriers positioned on a map of the world are expressed by polygons in the vector diagram, and route segment path-finding is to finally find an optimal route segment from communicated paths which are generated between the two outer points of the polygons without passing through the polygons.

The invention discloses a drawing architectural element identification method and system based on machine learning. The drawing architectural element identification method is based on the method of combining a rule and machine learning. Rule matching and mathematical modeling are conducted on vector diagram metainformation obtained from a drawing, the feature distribution law of an architectural element in the drawing is strictly and accurately analyzed through the training process, the data sets of a primitive database, an architectural element rule base and an architectural element feature base are formed, the architectural element identification method in the probability sense is obtained, and the recognition rate of an architectural element and a property parameter of the architectural element are further improved. The drawing architectural element identification system based on machine learning tries to break through the limitation of an existing drawing identification method, provides an efficient drawing analysis and identification tool for a metro design and construction department, and has the three advantages of being high in precision ratio, identification efficiency and intelligent degree.

The invention provides a multi-objective visual guide driving device of an automated guided vehicle and a collaborative calibration method of the multi-objective visual guide driving device. A vehicle body of the automated guided vehicle is fixedly connected with a plurality of guide driving devices, each guide driving device comprises a shock absorption unit, a driving unit and a visual unit, each visual unit is provided with a camera, and the cameras arranged on a plurality of guide driving devices form a multi-objective visual system of the automated guided vehicle. The structural characteristic that each single guide device can rotate around a hollow short shaft is utilized, the position posture relationship between a scene coordinate system and each guide driving device movement control coordinate system and the position relationship between the scene coordinate system and the vehicle body movement are jointly established by static calibration and dynamic calibration methods, and the mutation distortion, the proportion distortion and the inclination distortion of visual imaging and the installation position error of a plurality of cameras are effectively eliminated. The method can be used for the multi-objective visual precise measurement of the automated guided vehicle on the basis of plane vector diagrams, the use of precise measuring instruments is not needed, and the characteristics of good operability and high flexibility are realized.

The invention relates to an orientation identification method of ultrasonic array crack defects based on vector full-focusing imaging, and belongs to the field of nondestructive testing. According to the method, vector full-focusing treatment is performed on signals received by a transducer array so as to obtain a global vector diagram, the positions of the defects are determined by the strongest energy of reflected signals at the defects, then local vector diagrams of the defects are extracted according to the positions of the defects, and finally the directions of the vectors are determined by utilizing the directions of vectors in the local vector diagrams. According to the principle of vector full-focusing imaging, a plurality of sub-arrays are constructed in the transducer array, the unit direction vector at any imaging point is calculated through the sub-arrays, and echo amplitude after compensation at any imaging point to the transducer array is vectorized by utilizing the unit direction vector, so that amplitude vector at any imaging point is obtained.

The invention relates to a method for designing and developing a traffic channelization map and belongs to the field of computer digital map technology and intelligent transportation technology. The invention presents a new structure design and development method of map pattern structure, which is used for displaying road traffic channelization information in a map way. And complex channelization patterns can be displayed based on two-dimensional vector diagram. Users can view the traffic channelization information on the display terminal, such as browsers, in an enlarged, narrow and translational mode. Measurement and drawing of traffic channelization map, map coordinate matching, display of publishing processes and methods are developed, which solves the difficult problem that traditional traffic channelization information is difficult to display and difficult to draw.

The invention relates to a high-spatial resolution remote sensing image-based road region building change extraction method and device. According to the method and device, an object-oriented image processing strategy is adopted, the spectral information and spatial information (including structural indexes and spatial relationships) of images are comprehensively utilized, and a single-class classification method is adopted. In order to avoid interference (spectral similarity) on extracted results caused by ground feature classes except road regions, it is required that existing road information such as an existing road vector diagram, is provided in advance; the existing road vector diagram is adopted to extract a road region range; and newly increased buildings are extracted within the road region range. With the high-spatial resolution remote sensing image-based road area building change extraction method and device provided by the invention, time for a traditional method to obtain newly increased buildings such as illegal buildings by using image visual interpretation can be greatly decreased, efficiency can be improved, and human resources can be saved. The method and device can be used for road maintenance and monitoring business operation systems.

The invention provides a computer-aided design method for building a tooth occluding relation. In a three-dimensional visual environment, a doctor is assisted to build a new occluding relation model on a computer through an intuitive image and an objective quantitative index, so that orthodontic and orthognathous surgical treatment are better guided. The method comprises the following steps: (1) acquiring and reading a three-dimensional data models of upper and lower jaw dentitions; (2) selecting canine fossa corresponding points from the three-dimensional data model of the dentitions; (3) calculating canine fossa corresponding point vectors and a point cloud distance between upper and lower jaws, and displaying a canine fossa corresponding vector diagram and a two-dimensional collision detection chromatogram; (4) moving the three-dimensional data model till the upper and lower jaws are under a good occluding corresponding relation; (5) calculating a three-dimensional collision model; (6) performing Boolean operation on the calculated three-dimensional collision model and the three-dimensional data model of the upper and lower jaw dentitions obtained in the step (4), and removing interference to obtain a virtual occluding model; and (7) saving the built virtual occluding model, and exporting the saved virtual occluding model.

The land investigating data processing method is one solution for land investigating operation system. In field operation, the land utilizing state vector diagram, compressed remote sensing image diagram and linear programming diagram are led into PDA; GPS receiver is used to receive satellite data, the received data are software analyzed in PDA to extract information and the information after coordinate conversion and matching with original diagram is displayed on the PDA screen. By means of the special software in PDA, the GPS locating points, the points in the vector diagram, the points in the screen or distance joining points are selected to constituted into investigating graph. The land investigating information of the graph is registered, and the graphic and attribute information is maintained. Through indoor operations including introducing the field collected information, etc., the land utilizing data base may be updated.

The invention discloses a modeling method of a generating system of a mixed excited synchronous motor. The method comprises the following steps of: establishing a simulation model of a three-dimensional finite element electromagnetic field of the mixed excited synchronous motor; calculating the synchronous reactance value of the mixed excited synchronous motor under different excitations and different load currents according to a phase potential waveform and a vector diagram of the mixed excited synchronous motor, which are acquired through the coupling analysis of a transient field circuit; establishing a body simulation model of the mixed excited synchronous motor according to a voltage equation of the mixed excited synchronous motor; and adding an output voltage detection module, an excitation current feedback module, a load current feedback compensation calculation module and a load current detection part to form a generating system model of the mixed excited synchronous motor on a basis of the body simulation model of the mixed excited synchronous motor. The modeling method of the mixed excited synchronous electric generating system is particularly suitable for the application research of an airplane generating system and a wind generating system of a novel mixed excited synchronous motor and provides a reference for analyzing the steady-state and dynamic performance of the system and designing the parameters.

The invention provides a luminosity diagram-based geometry and surface material reconstructing method. The method comprises the following steps of: (1) segmenting a material, constructing an initialized material weight figure, establishing Diffuse Albedo; (2) estimating a surface normal vector diagram; (3) iterating and solving a normal vector by using an Alternating-Constrained-Least-Square method and constructing a bidirectional reflectance distribution function (BRDF) material substrate; and (4) enhancing a depth filed. On the basis of a normal vector diagram, the least square surface depth information is obtained by a Poisson equation. By the method, different material areas and material attributes and the surface depth information of an object in a picture can be recovered automatically from a group of picture sequences with known light conditions reliably; and the object is subjected to three-dimensional reconstruction rapidly.

The invention relates to the technical field of medical image processing, in particular to a focus tracking method under a digestive endoscope based on sequential feature learning, which comprises thefollowing steps: collecting lesion video clips as training samples, and constructing and training a tracking model based on a convolutional neural network, a long short-term memory network and an optical flow vector diagram; acquiring network model parameters, acquiring a digestive endoscopy real-time examination video, deframing the digestive endoscopy real-time examination video into pictures,calculating optical flow vector diagrams of two adjacent frames of images, loading a network structure and model parameters based on a convolutional neural network, a long short-term memory network and the optical flow vector diagrams, and calculating the area and position of a focus in real time. By means of the method, the area and the position of the focus can be tracked in real time in the digestive endoscopy process for endoscopy doctors to refer to, and the situation that the focus area is lost due to illumination, angles, shielding and other reasons in the examination process can be effectively prevented. The detection and tracking capacity of the focus under the digestive endoscopy can be improved, and the examination quality of the digestive endoscopy is effectively improved.