121 results about "Virtual modeling" patented technology

When a user browses an online retailer's Web site or a mirror site, the user can select an item and model the item online by having a server generate a digital image of the user wearing the item. If the user is still unsure as to whether to buy the item, the user can enter an online chat room in which the online modeling image is displayed to other users. The user can then receive the other users' feedback before deciding whether to buy the item. In a second embodiment, multiple online modeling images are generated to provide the user with a customized catalog, which can be of items for a single merchant or multiple merchants.

Trying on the clothes is simulated by processing an image sequence by using a posture dictionary, and a three-dimensional figure, obtained in advance, of a person who wishes to try on clothing. The process includes estimating the posture of the person, and simulating the motions of the clothes, in agreement with estimated time series posture data. A virtual modeling apparatus comprises an imaging device configured to take an image sequence, a posture-estimator which estimates the posture of a person in the image sequence from the three-dimensional figure data of the person and from data for various postures, a posture corrector which generates smooth and natural posture time series data from the time series of estimated postures, a clothes simulator which calculates the motions of the clothing being modeled, and a display device which displays images of the person as if they were actually wearing the clothing.

The invention relates to a construction method and system of a digital exhibition hall. An exhibition hall to be constructed is scanned in a 3D manner to obtain 3D scanning data, according to the 3D scanning data, 3D virtual modeling is carried out on the exhibition hall to be constructed by utilizing a virtual reality technology, cultural relic related information is associated with a 3D virtual model, and the digital exhibition hall is obtained, namely, a virtual world corresponding to the exhibition hall to be constructed is obtained. In the modeling process, modeling parameters are easier to obtain and are comprehensive. The 3D virtual model is established by utilizing the virtual reality technology according to the 3D scanning data, and the digital exhibition hall is obtained after that cultural relic related information is associated with the 3D virtual model, so that the structure and arrangement of the established digital exhibition hall are completely consistent with those of the original entity exhibition hall; and a user feels immersive when visiting the digital exhibition hall, and is not limited by time, place or environment, information of cultural relics in the digital exhibition hall can be obtained at any time, and the interaction performance is improved.

The invention discloses an automatic driving algorithm anticipating function safety verification method, a platform and a storage medium. The method comprises the following steps of establishing an automatic driving function algorithm in Matlab / Simulink software, and establishing a virtual automatic driving scene corresponding to the automatic driving function algorithm through virtual scene modeling software; establishing a real vehicle dynamics model through Carsim and operating in a hardware dSPACE Scalexio system; realizing rapid prototyping of the automatic driving function algorithm established in the Matlab / Simulink software in hardware dSPACE MicroAutoBox; and using an above closed-loop control process to form an automatic driving HIL test system in which virtual modeling is performed according to an SOTIF dangerous scene, and carrying out SOTIF MIL and HIL verification on the automatic driving function algorithm in the dSPACE MicroAutoBox.

A virtual model capable of simulating physical deformation of at least a portion of a product to be worn on a body. The portion comprises a thin, flexible material, wherein the model comprises a first zone of compression defining two major surfaces, wherein at least one of said major surfaces further comprises a zone of bending.

Trying on the clothes is simulated by processing an image sequence by using a posture dictionary, and a three-dimensional figure, obtained in advance, of a person who wishes to try on clothing. The process includes estimating the posture of the person, and simulating the motions of the clothes, in agreement with estimated time series posture data. A virtual modeling apparatus comprises an imaging device configured to take an image sequence, a posture-estimator which estimates the posture of a person in the image sequence from the three-dimensional figure data of the person and from data for various postures, a posture corrector which generates smooth and natural posture time series data from the time series of estimated postures, a clothes simulator which calculates the motions of the clothing being modeled, and a display device which displays images of the person as if they were actually wearing the clothing.

The invention discloses a three-dimensional dynamic simulation method for a water outlet process of submarine-launched missiles, and relates to a three-dimensional dynamic simulation method. The method aims to solve the problems of complex testing equipment, high testing cost and weak repeatability in the ground simulation tests. The three-dimensional dynamic simulation method for the water outlet process of the submarine-launched missiles is realized based on CPU-GPU isomerous multithreading development environment, and comprises the following contents: (1) a human-computer interaction platform is built; (2) three-dimensional virtual modeling and displaying for the water outlet process of the submarine-launched missiles are implemented; (3) visualization modeling for the water outlet process of the submarine-launched missiles is implemented based on a particle system; (4) visualization modeling for drum vacuole of the submarine-launched missiles is implemented based on coloring language; (5) sea depth staffs are dynamically displayed; (6) multi-view interactive three-dimensional navigation for the water outlet process of the submarine-launched missiles is implemented; (7) key parameters for the water outlet process of the submarine-launched missiles are visualized. The three-dimensional dynamic simulation method has the advantages of safety, economy, controllability, no damage and recycling property, and can be applied in the technical field of computer simulation methods.

The invention discloses a method for three-dimensional dynamic simulation in the space manipulator auxiliary butt-joint process and relates to a method for three-dimensional dynamic simulation. The method is used for solving the problem that due to the fact that command and control personnel on the ground and an astronaut cannot visually see a manipulator, great trouble is brought for control over movement of the manipulator. The method comprises the specific steps of realization environment establishment, space manipulator three-dimensional virtual modeling and displaying, movement model establishment, manipulator movement simulation based on a rocking bar controller, real-time rendering of force-receiving and deformation of a manipulator flexible arm lever, dynamic display of a movement track of the tail end of the manipulator, multi-view interactive roaming in the auxiliary butt-joint process and project value and curve display in the space manipulator auxiliary butt-joint process. The method is applied to the technical field of computer analogue simulation.

The invention discloses a prefabricated wall body steel reinforcement data processing method and apparatus. The method comprises the steps of obtaining an outer contour model of a prefabricated wall body, built based on a BIM; splitting the outer contour model into virtual geometry blocks, wherein each geometry block comprises a beam region, a column region, a hidden column region, a hidden beam region and a steel reinforcement mesh region; according to preset steel reinforcement distribution rules and steel reinforcement parameters, performing parametric calculation, and drawing steel reinforcement meshes or steel reinforcement cages in the outer contour model to generate an overall reinforcement distribution graph; and performing geometric topology division on the overall reinforcement distribution graph, and dividing overall steel reinforcement in the corresponding geometry blocks to generate steel reinforcement framework data. The steel reinforcement framework data can be quickly generated by adopting a virtual modeling method. Furthermore, the steel reinforcement is subjected to collection processing by a geometric topology relationship; initial process data required for steelreinforcement cage and mesh machining can be formed; and a feasible digital modeling method is provided for industrial large-scale mechanical building steel reinforcement processing.

Systems and methods for virtual modeling, mapping, and simulation are disclosed. An example computing system to manage an infrastructure using a virtual modeling platform is disclosed. The computing system dynamically allocates multiple resources in a location that represents a location within the virtual environment. The multiple resources may be associated with an infrastructure for example, a healthcare infrastructure. Then the computing system determines one or more of multiple health metrics associated with a number of people, multiple resource metrics and multiple economic metrics based on the allocated resources.

The invention provides a construction progress visualization management system based on augmented reality. The augmented reality-based construction progress visualization management system includes: a construction management and control unit, which is used to automatically collect IoT sensing data and manual input information on the construction site, classify, summarize and organize the collected data, and combine the WBS to organize the on-site construction The process is decomposed into a number of progress nodes, compiled into a construction schedule for management; the virtual modeling unit, based on the data provided by the construction control unit, constructs a construction-related virtual model; the augmented reality unit is used to scan the real scene and Identify, and superimpose the virtual model provided by the virtual modeling unit on the identified real scene, so as to present or display the augmented reality effect of the construction progress. The invention also provides a method of a construction progress visualization management system based on augmented reality.

The invention discloses a spacecraft solar panel three-dimensional dynamic simulation method taking a shielding effect into consideration, belongs to the technical field of computer simulation, and solves the problems that the power generating efficiency is estimated inaccurately caused by complex analyzing tasks of the existing shielding situations generated by a satellite orbit and a large-scale mechanism. According to the technical main points, the method comprises the following steps: building a realization environment; performing three-dimensional virtual modeling on a spacecraft; displaying a spacecraft body, a solar panel and an antenna in real time; calculating a sheltering matrix through a shadow shielding algorithm; performing visual rendering based on solar panel shadow of shading language; performing multi-view-angle interactive three-dimensional roaming; displaying the power and a temperature curve of the solar panel in real time. According to the method, the analyzing tasks of the shielding situations generated by the satellite orbit and the large-scale mechanism are realized, the power generating power of solar batteries is calculated according to a shielding analysis result, and the number of the solar batteries is designed reasonably.

The invention relates to a virtual modeling thing internet and cloud computing combining method and system. The control method comprises the following steps of: obtaining states of all objects in a monitoring scene to generate state data; generating an object three-dimensional model according to the state data, forming a virtual three-dimensional scene by the object three-dimensional model and displaying; obtaining the operation of a user on the object three-dimensional model in the virtual three-dimensional scene and generating even data; and generating a control command according to the event data and controlling the corresponding object action in the monitoring scene according to the control command. By obtaining the states of all the objects in the monitoring scene, generating state data, obtaining and displaying the virtual three-dimensional scene, obtaining the operation of the user on the object three-dimensional model to generate even data, generating the control command according to the even data and controlling the object action in the monitoring scene according to the control command, the virtual modeling thing internet and cloud computing combining method and system realize the control operation on a real object in the monitoring scene so that the user has feelings in the real scene.

The invention belongs to the technical field of online shopping, and particularly relates to a VR-based panoramic shopping system and method, and the system comprises an image obtaining unit which isused for obtaining a live-action image photographed by photographing equipment; a virtual modeling unit which is used for editing the live-action image and constructing a 3D panoramic store and storenavigation; a virtual shopping unit which is used for displaying a 3D panoramic shopping place and shopping place navigation to the user, assisting the user to reach a required commodity display areathrough the shopping place navigation, or directly skipping to the required commodity display area after acquiring a skipping instruction of the user through the shopping place navigation; and a commodity selling unit which is used for obtaining a commodity viewing instruction after the user clicks the commodity and displaying commodity selling information to the user according to the commodity viewing instruction so as to facilitate purchasing of the user. According to the invention, immersive virtual reality shopping experience can be provided for the user, navigation service can be providedfor the user in the 3D panoramic shopping place, the user can directly jump to a required commodity area for rapid shopping, and the shopping experience of the user is improved.

The invention provides a radial basis function (RBF)-based plant three-dimensional configuration virtual modeling method, which comprises the following steps of: scanning plant image data by using three-dimensional laser; storing the data in a form of a triangular mesh; and realizing deformation of scanned data by using the radial basis function (RBF) by taking a framework topological structure and an organ topological structure of a specific plant as deformation restraints, thereby realizing construction of a target plant model. The sense of reality of details for plant organ three-dimensional configuration virtual modeling is greatly improved, and meanwhile, the method is easy and convenient and has higher efficiency.

The invention provides an intelligent regulation and control system and method for mine ventilation equipment based on digital twinning. The system comprises a digital twinning system physical entity, a virtual entity, twinning data and a ventilation equipment intelligent regulation and control system. The digital twinning system physical entity comprises a mine fully-mechanized excavation scene, an excavation working face, ventilation system entity facilities and various sensors; the virtual entity of the digital twinning system refers to a virtual modeling environment of the physical entity, truly maps data information of the physical entity and provides a virtual debugging environment for the ventilation equipment intelligent regulation and control system; the intelligent regulation and control system runs on the virtual entity and acts on the physical entity, and is a key module for realizing real-time interaction between the virtual entity and the physical entity; a ventilation system intelligent regulation and control system is responsible for processing the twinning data, generating a decision scheme through data information and providing intelligent decision information for ventilation system equipment.

The invention relates to a power grid monitoring method for automatically generating a three-dimensional hierarchical structure based on geographic information. The method is technically characterizedin that regional substation automatic virtual modeling is performed according to substation geographic information, a substation model and a substation internal transformer model; according to an in-station primary connection diagram and an inter-station tidal current diagram, and a data model and topological data which are required for generating a three-dimensional hierarchical region model areacquired; a power grid is layered according to voltage levels; master device transformers of a simulated substation in the three-dimensional model are connected hierarchically according to the obtained topological data; hierarchical display of the power grid is performed; and real-time data of connection line tidal currents, substation heavy overloads and real-time meteorology is acquired respectively, and a real-time monitoring function on the power grid is achieved. According to the method, by performing automatic three-dimensional hierarchical modeling on the power grid, a simulated three-dimensional world which can be used for monitoring the power grid in real time within a scheduling range is formed; and meanwhile, through connecting display of the real-time data of the power grid, centralized monitoring of regional master devices is more efficient and rapid.

The invention provides a method for classifying color of a color three-dimensional model based on a neural network. A three-dimensional model aiming at an actual object is obtained through three-dimensional scanning equipment or virtual modeling software; a three-dimensional model database is built; the three-dimensional model file obtained in the previous step is stored in the three-dimensional model database; a model data set for training and identification in the three-dimensional model database is read; the read model data set is input to a three-dimensional model character extraction module to extract the color character of the three-dimensional model; the character data in color is read from a model character database; a quantification sensor of the color character is established; a triad color character vector representing the color character of the three-dimensional object is obtained; an analytic module of the neural network is established; the parameters of the network are adjusted; decision-making operation of the color character vector is carried out through the neural network; and according to a discrimination formula of the neural network, an identification result is output. The method can effectively classify the object colors with different classes.

A method system, and apparatus for virtual modeling of biological tissue yields virtual multicellular individuals that exhibit adaptive emergent functionality in response to environmental stimuli. Virtual environmental parameters and cells with genomes are generated, and modified by genetic operations. Cells are developed into generations of multicellular individuals, which are evaluated and selected via evolutionary search according to fitness criteria, and individuals exhibiting adaptive emergent functionality, such as self-repair, are developed and identified.

The invention discloses a plane polygon object measuring method based on SLAM and a machine-readable storage medium. By utilizing the posture information and depth information provided by SLAM, the vertices are mapped into the world coordinate system with the contour information of the video frame image, thus, the length and the area of the plane polygon object are calculated, the on-line real-time measurement is realized, and the method is more suitable for the mobile terminal, and can be used in augmented reality and virtual modeling of the mobile terminal, and can bring better AR experiencefor users, and is more convenient for people to demand for measurement in daily life. Moreover, the triangulation method can be used to improve the robustness of depth information, and two contour extraction methods and iterative method can be used to obtain a wider range of applications, which can meet the needs of image detection in different lighting scenes, and the measurement accuracy is high, and the measurement results are accurate.

The invention discloses a three-dimensional morphological virtual modeling method of corn silk. The method comprises the following steps: observing the morphological structure of core silk and determining characteristic parameters of three-dimensional morphological of corn silk; establishing a three-dimensional virtual morphological model according to the characteristic parameters, wherein respectively carrying out modeling on silk axis, cluster stalk, spike stalk, bract and kernel. The three-dimensional morphological virtual modeling method combines the modern computer graphics technology andthe modern algricultural science and production process, can realize three-dimensional display of silk on the computer for different corn varieties by setting model parameters, and has stronger realistic effect. The model has strong controllability and easy operation and can meet the requirements of digital design of the corn silk.

A design engine for designing an article to be worn on a human body part (input canvas) in a virtual environment. A virtual model engine of the design engine is used to generate and modify a virtual model of the input canvas and a virtual model of the article based on skin-based gesture inputs detected by an input processing engine. The gesture inputs comprise contacts between an input tool and the input canvas at locations on the input canvas. The virtual model engine may implement different design modes for receiving and processing gesture inputs for designing the article, including direct manipulation, generative manipulation, and parametric manipulation modes. In all three modes, a resulting virtual model of the article is based on physical geometries of at least part of the input canvas. The resulting virtual model of the article is exportable to a fabrication device for physical fabrication of the article.

The invention discloses a multi-target three-dimensional dynamic tracking method of loose parts of a nuclear power plant. The multi-target three-dimensional dynamic tracking method comprises the following steps: step (1), establishing a database; step (2), carrying out three-dimensional virtual modeling; step (3), acquiring field signals of the loose parts; step (4), positioning the loose parts; step (5), estimating the quality of the loose parts; and step (6), dynamically tracking and displaying. The signals of the loose parts can be periodically acquired through an acceleration transducer; and after the loose parts are subjected to positioning and quality estimation, the loose parts are dynamically tracked by utilizing a three-dimensional visualization technology, and thus evidences are provided for expert diagnosis and breakdown maintenance. The multi-target three-dimensional dynamic tracking method has the advantages of strong anti-noise capability, high positioning precision and small quality estimation errors, and can be used for simultaneously tracking a plurality of loose part targets.

A method system, and apparatus for virtual modeling of biological tissue yields virtual multicellular individuals that exhibit adaptive emergent functionality in response to environmental stimuli. Virtual environmental parameters and cells with genomes are generated, and modified by genetic operations. Cells are developed into generations of multicellular individuals, which are evaluated and selected via evolutionary search according to fitness criteria, and individuals exhibiting adaptive emergent functionality, such as self-repair, are developed and identified.

The modeling of two or more related systems is enhanced by combining physical and virtual modeling techniques to create an interactive modeling system. In the presence of one model, the manipulation of a second model has an impact on the characteristics of both models. User manipulation of a virtual model on a simulation software system changes the characteristics of a physical model through a feedback system, which may be in the form of a haptic arm connected to the physical model. The invention also represents the docking of two models, such as the docking of two molecular systems, and to have the results of this docking represented in the physical and virtual models.

The invention relates to a building information display method and system. The method comprises the steps that the two-dimensional plan view of a building is acquired; a three-dimensional modeling tool is used to simulate the two-dimensional plan to acquire the modeling base data of the building; according to the modeling base data, virtual modeling is carried out on the building to acquire a virtual model of the building; the basic modeling data and the virtual model are associated to acquire a three-dimensional virtual model of the building; and according to the three-dimensional virtual model, the building information of the building is three-dimensionally displayed.

The invention discloses a virtual modeling method for a particle reinforced composite material. Based on an ABAQUS platform and the python language, the three-dimensional geometrical size of the material is determined; in the three-dimensional geometrical modeling process of the particle reinforced composite material, a virtual grid method is adopted, only one spherical particle is distributed at the common vertex of adjacent grids, and the center of gravity of the particle is the grid vertex, wherein, in a cube, the spherical particles are reinforced phases, and the other parts are collectively called a substrate; script codes recorded by the ABAQUS are adopted for arrangement and compilation, a Python automatic modeling calculation script is formed, the spherical particle distribution rule generated through programming is input into a script file in a coordinate form and directly submitted to an ABAQUS kernel for operation, a research variable is set as a function variable in the Python script, and the geometrical model of the corresponding particle reinforced composite material can be generated by selecting different volume fraction ratios. The virtual modeling method depends on no CAD software except for the ABAQUS, and the dependence on the software except for the ABAQUS and the necessity of the software except for the ABAQUS are greatly reduced.

The invention discloses a high-voltage cable line operation monitoring system, which is characterized by comprising a monitoring center server, a machine room server, a remote monitoring terminal andmonitoring equipment, wherein the monitoring center server is used for carrying out centralized monitoring, data analysis, management and real-time control on multi-state parameters of operation of subordinate high-voltage cables; the machine room server is used for receiving data sent by the remote monitoring terminal; the remote monitoring terminal is used for receiving high-voltage cable stateparameters of each measurement point in real time; and the monitoring equipment is a grounding current transmitter and is used for collecting circulation data parameters of high-voltage current. The high-voltage cable line operation monitoring system can timely and accurately monitor circulation abnormal data information occurring in high-voltage cable operation, performs simulation modeling on abnormal data in combination with virtual modeling, predicts possible fault influences of the abnormal data on the high-voltage cable operation, and protects the safety of the high-voltage cable line operation.

The invention discloses a three-dimensional urban power supply service command center data visualization method, and relates to a data visualization method. The three-dimensional urban power supply service command center data visualization method, carries out big data analysis on the business data in a database, integrates multi-source business system information such as power distribution automation, power distribution network first-aid repair, dispatching automation, a production management system, a marketing management system, video monitoring and the like, realizes three-dimensional virtual modeling of a power protection area, and integrally displays information such as a power protection scheme, an important user power supply path, an important user wiring mode, a power protection area main grid frame, a power protection area distribution grid frame and intra-station and extra-station monitoring videos. The three-dimensional urban power supply service command center data visualization method has the functions of data collection of a three-dimensional city, generation of a building model, monitoring of the operation state of power distribution network equipment based on the three-dimensional city, display of the emergency repair and power maintenance state of the power distribution network, emergency command and the like. The three-dimensional urban power supply service command center data visualization method comprehensively considers data integration linkage, completes screen direct monitoring, and displays statistical analysis conditions in real time.

The invention discloses a personalized face model display method, and belongs to the field of virtual modeling. The method comprises: receiving skeleton offset data, sent by a server, of a personalized face model of a three-dimensional role, and determining a middle face model corresponding to the three-dimensional role, wherein the first face model and the middle face model have the same first skeletons and first grids, and the number of the first skeletons is the first number; performing bone offset on the intermediate face model according to the bone offset data to obtain a personalized intermediate model; generating a personalized static grid according to a first grid in the personalized intermediate model; according to the basic face model corresponding to the three-dimensional role and the personalized static grid, displaying the personalized face model corresponding to the three-dimensional role, wherein the number of skeletons in the basic face model is the second number, and the second number is smaller than the first number. According to the method and the device, the problem of blockage caused by relatively large calculated amount when the client runs the three-dimensional role can be solved.