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451 results about "Three-dimensional graph" patented technology

A three-dimensional graph is the graph of a function f of two variables, or the graph of a relationship g among three variables. Provided that x, y, and z or f are real numbers, the graph can be represented as a planar or curved surface in a three-dimensional Cartesian coordinate system. A three-dimensional graph is typically drawn on a two-dimensional page or screen using perspective methods, so that one of the dimensions appears to be coming out of the page.

Method and apparatus for tracking game play

The invention is a method for tracking activities at a gaming machine and a system for player tracking. One embodiment of a method comprises generating data regarding individual activities associated with the operation of a gaming machine, transmitting the generated activity data to a remote location, storing the data at the remote location, and mining or manipulating the stored data based on one or more characteristics or criteria and generating an output. In one embodiment, the data is mined and the output is represented graphically, such as in a three-dimensional graph. In one embodiment, the generated data includes information regarding the identify of the player associated with the event, and the stored individual event data is mined to determine if the player has met criteria entitling the player to an award or “comp” separate from the awards provided by the gaming machine.
Owner:IGT

Indexing methods, systems, and computer program products for virtual three-dimensional books

A system is described for displaying images of a virtual three-dimensional book having one or more virtual pages. The system comprises a display system capable of executing a display program wherein images of the virtual three-dimensional book are produced on the display system. The display system may include a folding function, whereby a segment of a virtual page is displayed as at least partially folding backward form a surface of the display system. Additionally, based on one or more search terms, the display system may include an indexing function for creating a customized index and / or a table of contents function for creating a customized table of contents. Moreover, a dynamic bookmark function may be provided for displaying one or more dynamic bookmarks to a virtual three-dimensional book. Also disclosed is a computer program product comprising a computer usable medium having computer readable code embodied therein for producing images of a virtual three-dimensional book.
Owner:XEROX CORP

System and method for the tomography of the primary electric current of the brain and of the heart

A three-dimensional map of the probability of brain or heart functional states is obtained based on electric or magnetic signals, or a combination of both measured in the surface of body. From signals, the statistical descriptive parameters are obtained and a map of its distribution is calculated. The map is the inverse solution of the problem based upon: a) the restriction of the solution to structures with high probability of generating electric activity using for this restriction an Anatomical Atlas and b) imposing that the solution belong to a pre-specified functional space. The probability is determined that this map belongs to a test group. The spatial and temporal correlations of the map are modeled as well as their dependence on experimental covariables. The resulting probabilities are coded in a pseudocolor scale and they are superimposed on a Anatomical Atlas for their interactive three-dimensional visualization.
Owner:CENT NACIONAL DE INVESTIGACIONES CIENTIFICAS (CINC)

System and method for reducing risk

InactiveUS20040015375A1Increase efficiency and returnFinanceForecastingProgram planningKnowledge management
The present invention relates to a system and method for reducing risk to a firm and firm program and, more particularly, to reducing risk and improving yield or performance by considering firm strategic intent, phase, and integrated visuals. The current invention identifies, quantifies, and integrates strategic intent into the risk mitigation procedure by modifying the consequence chart, by dividing the program into phases, and by depicting risk related metrics, including strategic intent, that are associated with the risk element, the program, and / or the firm in a three dimensional graph.
Owner:COGLIANDRO JOHN

Method, system and touch terminal for unlocking touch terminal interface

The invention is suitable for the field of touch technology, and provides a unlocking method, a system and a touch terminal for touch terminal interfaces. The method comprises the following steps: receiving a rotary operation command of a three-dimensional graph displayed on a standby unlocking interface; controlling the three-dimensional graph to perform rotary operation in corresponding angle according to the rotary operation command; receiving the position clicked by a user on the three-dimensional graph; and judging whether the position clicked on the three-dimensional graph conforms to the preset unlocking strategy or not, if so, the interface is unlocked. In the scheme for unlocking the multi-dimensional visual space interface in a single-face touch screen, the invention provides brand new operation experience and the unlocking scheme for multi-dimensional visual space interface for users, and the password setting is improved to a brand new breaking difficulty.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD

Grinding and polishing industrial robot offline programming method based on workpiece three-dimensional graph

InactiveCN106182018ASimplified offline programming processQuick buildProgramme-controlled manipulatorGraphicsContact position
The invention relates to an off-line programming method for grinding and polishing industrial robots based on the three-dimensional graphics of workpieces. Through the workpiece calibration module, the homogeneous transformation matrix W of the spatial position and orientation of the workpiece coordinate system OW in the robot base coordinate system OBase is obtained through calibration; through the three-dimensional workpiece The graphics processing module discretizes the grinding and polishing path into several spatial points, outputs the three-dimensional coordinate information of each spatial point, and calculates several spatial pose homogeneous transformation matrices defined in the workpiece coordinate system OW on the grinding and polishing path of the workpiece surface R; through the tool calibration module, establish the tool end coordinate system OT at the contact position between the robot tool end and the workpiece, and calibrate to obtain the space pose homogeneous transformation matrix T of the tool end coordinate system OT in the robot base coordinate system OBase, to realize The robot is programmed offline. The invention has the beneficial effect of simplifying the off-line programming process of the grinding and polishing industrial robot without relying on off-line programming software of the robot.
Owner:FUZHOU UNIV

Method for rapidly manufacturing injection-mould insert with follow-cooling passageway

The present invention discloses a quick manufacture method of injection mould insert with form-following cooling flow passage. Said method includes the following steps: firstly, according to the injection mould cavity surface profile utilizing three-dimensional CAS software (for example Pro / Engineer or Unigraphics) to set form-following cooling flow passage, then making the mould three-dimensional graph be derived according to STL format file and inputted into the computer of selective laser sintering system; according to user's requirements adopting mixed powder of metal with different properties and high-molecule as forming raw material powder, making said mixed powder undergo the process of the above-mentioned laser sintering system to obtain the mould insert blank, making the mould insert blank undergo the processes of degreasing, secondary sintering and metal melt-infiltration so as to obtain the compact insert.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for seamlessly composing virtual three-dimensional building and real-scene video of real environment

The invention discloses a method for seamlessly composing a virtual three-dimensional building and a real-scene video of a real environment, which comprises the following steps: 1) shooting a video of a site on which a building is to be built by using a camera; 2), creating a virtual three-dimensional building model in a three-dimensional graph system; 3), for each frame of image in the video, extracting scenery obstructing the site to generate a frame of obstruction image and copying the rest of the frame of image in the video to generate a background image; 4) for each frame of image in the video, drawing a building image displaying the virtual three-dimensional building model through a virtual camera arranged in the three-dimensional system; 5) overlaying the obstruction images, the building images and the background images to produce a series of new images; and 6) compacting the series of new images at a frame rate at which the video is shot to produce a new video. The method can perfectly integrate the virtual three-dimensional building into the real-scene video of the environment in which the building is to be built and powerfully represents a scene of the building to be built and the environment of the building.
Owner:杭州镭星科技有限公司

An algorithm for intelligently generating a case loading scheme based on multiple constraint conditions

The invention provides an algorithm for intelligently generating a case loading scheme based on multiple constraint conditions. The algorithm is characterized by, one the basis of combining actual situation of case loading and fully considering main factors influencing case transport safety and case loading utilization rate, constructing a case balance loading optimization model, designing a corresponding solution algorithm, that is, a case loading algorithm comprising a balance adjustment algorithm, and providing a three-dimensional graph case loading scheme. Results show that the system cancalculate the case balance loading scheme of cargos in a case body quickly and efficiently, and can guide on-site workers to load the cargos quickly and accurately.
Owner:国家粮食和物资储备局山东局八三二处

Method and apparatus for depicting quality of service in mobile networks

A method of displaying quality of service information. The method generally comprises collecting data from a system under test; identifying quality of service parameters; calculating values for quality of service parameters based on the data collected from the system under test; graphing the values on a three dimensional graph having a first axis indicating the parameters, a second axis indicating values of the parameters, and a third axis indicating time.
Owner:AGILENT TECH INC

Condensing and membrane separation combined type oil gas reclaiming technical technology

The invention relates to a condensation and film separation combination type oil gas recycling art technique which is an improvement of condensation type oil gas art technique. The invention adopts the combined method of condensation technique and film separating technique to reach discharging standards. The problem that the temperature of single condensation type oil gas recycling reaches lowers than 95 DEG C below zero is overcome. The invention belongs to the oil gas recycling technical field, and is mainly used for the oil gas recycling of oil house, city transfer oil house, gasoline and light weight oil loading and unloading process. The invention consists of a refrigeration machine set 16, a pre-cooling box 2, a middle cooling box 3, a liquid ring type compressor 4, a switch 5, a membrane module 6, a vacuum pump 15, a switch 8, a switch 9, an oil water separator 10 and an oil pump 13. According to the art flow sequence in the attached drawing 1, the refrigeration machine set 16, the pre-cooling box 2, the middle cooling box 3, the liquid ring type compressor 4, the switch 5, the membrane module 6, the vacuum pump 15, the switch 8, the switch 9, the oil water separator 10 and the oil pump 13 are connected together and are arranged on a base crowing. The construction is shown in the attached drawing 2. The three-dimensional graph of the modular structure is shown in the attached drawing 2.
Owner:王建基 +1

Space teleoperation method

The invention relates to a space teleoperation method. Safety of a space teleoperation instruction is ensured through a three-dimensional graph simulation verification method and an executive capacity verification method, real-time visual information is provided for an operator through a forecast simulation drive three-dimensional model, force sense information is provided for the operator through the bilateral control technology, and therefore the immediacy sensor of the operator is improved. According to the specific thought, a space teleoperation instruction sending end sends the instruction to a three-dimensional graph simulation verification end and a calculation capacity verification end through an information dispatching center after generating the instruction so that the instruction can be verified, and the three-dimensional graph simulation verification end not only serves as the verification end of a space teleoperation system, but also provides necessary visual information for the operator; in addition, in the generation link of the teleoperation instruction, generating feedback force is generated for the difference between the motion state of a space robot and the motion state of the existing forecast simulation model through a bilateral control algorithm, the feedback force is exerted on the operator, and therefore the operation can sense and judge the motion state of the space robot through the force sense.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Driver examination and training three-dimensional virtual monitoring method and system

ActiveCN103985282AAccurate results when judgingTimely detection of misjudgmentsCosmonautic condition simulationsSimulatorsGraphicsData information
The invention discloses a driver examination and training three-dimensional virtual monitoring method and system, and relates to the technical field of driver examination systems. The driver examination and training three-dimensional virtual monitoring method includes the steps that an examination site and the appearance of an examination vehicle are accurately measured through the satellite positioning technology, and measurement data are recorded; a three-dimensional graph of the examination site and the examination vehicle is generated according to the measurement data; a three-dimensional virtual scene is established according to the established graph of the examination site and the examination vehicle; a vehicle-mounted computer of the examination vehicle receives examination vehicle positioning coordinate data information acquired through satellite positioning, and the information is loaded to the three-dimensional virtual scene after being processed. By the adoption of the driver examination and training three-dimensional virtual monitoring method and system, the examination vehicle is monitored in an omni-bearing mode, positioning is accurate, and the established three-dimensional virtual scene is accurate and virtual and visible in an omni-bearing mode; monitoring personnel in an examination monitoring center can more accurately conduct item judgment on the examination vehicle and can find the misjudgment and judgment missing problems in examinations in time.
Owner:石家庄华燕交通科技有限公司

Spatial global 3D view and panoramic image-based space display method

The invention relates to a spatial global 3D view and panoramic image-based space display method. The method includes the following steps that: 1) 3D modeling is carried out, and the texture mapping of a spatial global 3D model is generated based on panoramic images; 2) a three-dimensional graph library is utilized to display the 3D model of a space to be displayed, wherein the 3D model has been subjected to the texture mapping generated in the step 1); 3) panoramic image acquisition is carried out, an indoor panoramic 3D data biaxial automatic acquisition device in the space to be displayed is adopted to acquire the panoramic images of a plurality of preset observation points, and the exact spatial 3D coordinate information of each observation point and the rotation axis information of corresponding panoramic images in the 3D model of the space to be displayed are recorded, wherein the rotation axis information contains zero-degree angle information; 4) the panoramic images obtained in the step 3) are mapped on the 3D model through a 3D panoramic mapping algorithm; and 5) a 3D model display mode and a panoramic image display mode are switched.
Owner:众趣(北京)科技有限公司

Design and manufacturing method of porous grid structure material

The invention discloses a design and manufacturing method of a porous grid structure material and aims to solve the problems of blindness and uncertainty in traditional manufacturing of a porous material and apply an effective design concept for the porous material to practical manufacturing. The design and manufacturing method comprises the following steps: obtaining a data image based on topological optimization simulation; performing three-dimensional rebuilding on the data image on Solid Works; importing to magics software as a unit grid structure; filling into various three-dimensional models of specific parts which need to adopt the grid structure at any size ratio; afterwards manufacturing the parts. According to the design and manufacturing method, firstly, the three-dimensional model of each part is imported to a computer on a worktable; the printing angle and the printing position are set according to the three-dimensional graph structure; a powder layer is sintered into a corresponding two-dimensional shape on the layer; powder with the same thickness is repeatedly laid on the worktable on which one layer of graph is sintered; laser scanning is still performed according to the scanning route of the layer until the overall three-dimensional graph is completed. The design and manufacturing method disclosed by the invention has the advantages of reducing the elasticity modulus of the part and realizing good mechanical properties.
Owner:BEIJING UNIV OF TECH

Preparing method for nanoimprint template

The invention provides a preparing method for a nanoimprint template .The method includes the following steps that a micro-nano original template of a three-dimensional graph structure is provided; a base is coated with sol to serve as a substrate; a complementary graph of the micro-nano three-dimensional graph structure is imprinted on the substrate with the original template through an imprinting technology; the obtained substrate with the complementary graph is used as the template in the follow-up nanoimprint process .The preparing method for the nanoimprint template is high in repeatability, capable of preparing the inorganic template fast at low cost on a large scale and capable of being used in the processes of ultraviolet imprinting and thermal imprinting, the prepared template is high in mechanical strength and reutilization, conformality in the follow-up imprinting process is good, a base material with a higher depth ratio can be obtained by using the template as a mask plate after etching, and the problem that the structure is shallow after etching when photoresist serves as the mask plate can be solved.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI

Web-based three-dimensional scenic visualized editing device and method

ActiveCN102413164AComplete efficientlyReduce the risk of collaborative developmentTransmissionImage data processingGraphicsComputer terminal
The invention relates to a web-based three-dimensional scenic visualized editing device, and particularly relates to a device and method for transmitting and editing data in parallel. The device comprises a server end and a client end, wherein the server end comprises a scenic data transmission device, a version managing device and a priority managing device, and the client end comprises a dynamic display managing device. Due to the adoption of the device and the method, based on a browser thin client, a three-dimensional graph editing user can carry out the high efficient parallel development of a large-sized three-dimensional scenic project, work duplicate of the project is unnecessary to store on a user terminal computer, all three-dimensional graph design functions are supported by a central server, the centralized management of distributed data can be realized, version control can be realized for the editing operation of the user, the current operation can be rolled back by the user to a designated historic version, so the cooperative development risk of a project team can be reduced. The invention also provides a method by utilizing the device to perform multi-user cooperative edition.
Owner:北京华电万通科技有限公司

Stage lighting rehearsal system

The invention provides a stage lighting rehearsal system comprising a parameter setting unit, a data analysis unit and a rendering output unit which are connected in sequence. The parameter setting unit is used for receiving externally inputted parameter information on a stage lighting rehearsal in real time. The data analysis unit is used for analyzing the parameter information acquired by the parameter setting unit and acquiring position, attitude, perspective, focus, brightness and / or color information of stage lighting. The rendering output unit is used for rendering the acquired position, attitude, perspective, focus, brightness and / or color information of the stage lighting by the data analysis unit by using a three-dimensional graph simulation engine and obtaining lighting effects of stage lights. According to the invention, a stage lighting integrated rehearsal can be carried out before a performance so as to provide visualized stage lighting effects and basis for the performance, the manpower and material resources and time costs are reduced, a waste of resources is avoided, and working efficiency is improved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

PET-CT lung tumor segmentation method combining three dimensional graph cut algorithm with random walk algorithm

The invention belongs to the field of biomedical image processing and specifically relates to a PET-CT lung tumor segmentation method combining a three dimensional graph cut algorithm with a random walk algorithm. The method comprises the following steps of: performing linear up-sampling on an original PET image and performing affine registration on PET and CT images; calibrating tumor seed points and non-tumor seed point; performing random walk algorithm segmentation on the PET image in combination with the tumor seed points; acquiring a foreground target area Ro completely including a target lung tumor area, using the areas, except the Ro, as a background area Rb of a non-lung tumor area; establishing gauss mixture models for the foreground area Ro and the background area Rb separately; computing energy items according to the gauss mixture models of the foreground area Ro and the background area Rb and obtaining a final segmentation result by using an graph cut algorithm. The method fully utilizes the function information and the PET image and the structure information of the CT image, enables complements between the random walk algorithm and the graph cut algorithm, and achieves an accurate lung tumor segmentation result.
Owner:SUZHOU BIGVISION MEDICAL TECH CO LTD

High-efficiency air filter scanning leak-detection device and method

Disclosed is a high-efficiency air filter scanning leak-detection device and method. The high-efficiency air filter scanning leak-detection device comprises an air duct system, an air flow conversion device, a detection platform, a two-dimensional scanning mechanism, a detection system and a control system. According to the high-efficiency air filter scanning leak-detection device and method, leak points can be accurately and rapidly positioned, the distribution of the leak points are timely displayed through a three-dimensional graph, and the standard requirements are met.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI +1

Method for analyzing and diagnosing large scale process automation control systems

A method is provided for analyzing and diagnosing a large scale process automation control system having a plurality of control loops. Assessments for pre-defined key performance indicators (KPIs) are automatically generated for control, process and signal sections of each control loop. The automatically generated assessments of the pre-defined KPIs may be displayed in a graphical user interface (GUI) of a computer. A user may change the automatically generated assessments of the pre-defined KPIs. Different data views may also be displayed in the GUI. The data views include time series trends for measured process variable, controller output, controller set point and error, as well as controller parameter clustering views in two-dimensional and three-dimensional plots.
Owner:ABB INC

State set based shader three-dimensional graph drawing frame and drawing method

The present invention uniformly package and descript the drawing object model information, texture information, voice message relevant Shader code in Materials Description file before tuning in scene chart, and tuning in shown off object through Material Loader and Media Loader in scene chart data store organization, also according to Shader information sorting and to proceed static and dynamic optimization, then using optimized drawing status information loading to engine to proceed drawing, drawing engine consisting of drawing control and state control, both combined to complete one drawing object drawing process. The present invention makes effective management to Vertex Shader and Pixel Shader, fully utilizing state package and sorting function, simplifying interface calling.
Owner:BEIHANG UNIV

Steel truss manufacture process

The invention relates to the field of steel structure building, in particular to a steel truss manufacture process which includes the following steps: shearing a steel pipe according to preset length to obtain a plurality of main pipes and a plurality of branch pipes; manufacturing a three-dimensional model through a preset steel truss structure; manufacturing CAD three-dimensional graphs through intersection lines of all the main pipe and all the branch pipes in the three-dimensional model; generating a numerical control file through each CAD three-dimensional graph; inputting each numerical control file into a numerical control relevant line cutting machine, conducting insertion line cutting on the corresponding main pipes and the corresponding branch pipes and labeling the main pipes and the branch pipes; welding the main pipes and the branch pipes according to labeled numbers to obtain the steel truss of the preset structure. By means of the steel truss manufacture process, connection accuracy and welding quality are improved, welding deformation is reduced, welding seams are continuous and smooth, labor intensity is reduced, manufacturing efficiency is improved, and the accuracy of the steel truss is further ensured.
Owner:KOCEL EQUIP +1

House checking, renting and selling method of house sharing platform

The invention discloses a house checking, renting and selling method of a house sharing platform. The method comprises following specific steps that an owner logs in the platform, uploads full-view pictures or videos and publishes the full-view pictures or the videos enclosed with augmented reality sand table three-dimensional graphs; a demander logs in the platform, looks over the full-view pictures or the videos and the augmented reality sand table three-dimensional graph of the community and near the house, and makes an online appointment and freely selects transaction modes; the owner freely selects transaction modes; the demander pays; and the owner collects the money and visits the platform again. In this way, time of the demander to go to the to-be-sold house can saved; cost of the demander can be reduced; the demander can comprehensively know the house, the community and the supporting facilities around the community in advance; the house can be looked over, rent and sold online; ability of the owner receive demanders is improved; difficulty level in selling the house is reduced; and convenience degree of house buying and selling is increased.
Owner:徐亦隽

Point cloud registration model and method combining attention mechanism and three-dimensional graph convolutional network

The invention relates to a point cloud registration model and method combining an attention mechanism and a three-dimensional graph convolutional network, and the model is a three-branch Siamese architecture, and comprises a Dejector model and a Descriptor model. The Detector model is used for extracting attention features of points and constructing an attention mechanism; the Descriptor model isused for generating an expression of a three-dimensional depth feature to represent the three-dimensional depth feature of the point, and learning and judging the depth feature of the point cloud. Themethod comprises the following steps: carrying out model training, and constructing a loss function to train a model by using a failure align triplet loss, so as to effectively extract attention features and descriptor features from a point cloud; after model training, carrying out the point cloud registration. According to the method, the key points and the three-dimensional depth features of each key point can be automatically extracted, in the three-dimensional graph convolutional network, the multi-layer perceptron MLP is combined with the graph convolutional network GCN, a new point cloud feature extraction module is designed, more point cloud features with identification significance can be extracted, and the accuracy of point cloud registration is improved.
Owner:CAPITAL NORMAL UNIVERSITY

Three-dimensional modeling method of side-pushing structure

The invention relates to a three-dimensional modeling method of a side-pushing structure. The method comprises the following steps: A, making a two-dimensional line graph of a side-pushing flow guide plate along projection of a shaft line direction in the side-pushing structure according to a three-dimensional model of the known side-pushing structure; B, dividing the two-dimensional line graph of the side-pushing flow guide plate into a plurality of regions to form a region division graph of the side-pushing flow guide plate; C, importing the region division graph of the side-pushing flow guide plate to a corresponding three-dimensional hull model to form a three-dimensional graph; D, projecting an intersecting line of the side-pushing structure and an outer plate of a hull and an inner mouth line of a side-pushing cylinder in the three-dimensional graph, wherein the intersecting line and the inner mouth line forms a horn mouth structure; E, carrying out three-dimensional fairing on the horn mouth structure, and determining a three-dimensional line graph of the side-pushing flow guide plate; and F, carrying out lofting processing on the three-dimensional line graph of the side-pushing flow guide plate. According to the method provided by the invention, jointing transition of the side-pushing structure and the outer plate can be intuitively adjusted, fairing connection of the side-pushing structure and the outer plate of the hull is ensured, and the performance and the beauty of the side-pushing structure are ensured.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY

Three-dimensional animation system of computer and animation method

The invention discloses a three-dimensional animation system of a computer. The three-dimensional animation system is implemented by few data and is efficient and diversified, and redundancy of the data can be reduced. The three-dimensional animation system is characterized in that an animation control module 1 specifies shape data, specifies hierarchical data, specifies attribute groups and specifies state information; and an animation algorithm module 3 acquires the shape data from a shape data processing module 5, acquires the hierarchical data from a hierarchical processing module 4, acquires attributes from an attribute group processing module 2 and acquires action data recorded in the state information from an action data processing module 6. The action data which are acquired corresponding to numbers of the attribute groups are changed into the shape data according to the hierarchical data; and then a three-dimensional graph drawing module 7 carries out three-dimensional drawing processing for the changed shape data to generate images, and graph rendering is carried out in a rendering module 9, and the images are displayed in a display module 10.
Owner:SHANGHAI WEITA DIGITAL TECH

Method for collecting three-dimensional geometric drawing member on pattern processor

ActiveCN101271585AMeet the needs of real-time interactionAvoid switching3D-image renderingGraphicsGeometric primitive
The invention discloses a method picking up a three-dimensional geometric graphic primitive on a graphic processing unit GPU, belonging to the technical field of picking up a mass of graphic primitives. The method draws a three-dimensional graph with an ID code of the geometric graphic primitive to an off-screen buffer FBO on the graphic processing unit GPU; the FBO is associated with a RBO to read the ID of the graphic primitive; or the FBO is bound to a texture, by which a texture research is carried on; thereby the geometric graphic primitive selected by a current mouse hotspot or a geometric graphic primitive set in a choice box selected by the mouse can be obtained fast. The invention is the method based on the graphic processing unit GPU which picks up fast and accurately a complicated geometric model comprising a large number of geometric graphic primitives and also can be applied to a constructor of a characteristic of a subdivision surface to help a user to construct the fine characteristics interactively and fast on the curved surface. The method of picking up the three-dimensional geometric graphic primitive on the graphic processing unit GPU provided by the invention is capable of improving the speed and the precision of a pick-up movement, thereby enhancing the efficiency relating to an interactive operation of the geometric model.
Owner:北京通建泰利特智能系统工程技术有限公司

GPS-based binocular fusion positioning method and device

The invention discloses a GPS-based binocular fusion positioning method and a GPS-based binocular fusion positioning device, which relate to a computer vision technology, in particular to a real-time object positioning method, and is suitable for self-positioning of various objects, such as self-positioning of an unmanned aerial vehicle or a robot. The GPS-based binocular fusion positioning method comprises the steps of: step 1, acquiring a three-dimensional map of a space in which an object to be positioned locates; step 2, acquiring longitude and latitude of the object to be positioned, so as to obtain a coarse positioning range of the object to be positioned in the three-dimensional map according to the longitude and latitude of the object to be positioned; step 3, and using a binocular measurement visual system arranged on the object to be positioned for shooting an image of reference objects surrounding the object to be positioned, performing three-dimensional reconstruction on the reference objects according to the image shot by the binocular measurement visual system to obtain a three-dimensional graph of the reference objects, looking for a region matched with the three-dimensional graph in the coarse positioning range, and further determining a precise positioning region of the reference objects in the three-dimensional map.
Owner:CHENGDU TOPPLUSVISION TECH CO LTD
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