709 results about "Digital mockup" patented technology

Methods, apparatus and computer program products provide efficient techniques for reconstructing surfaces from data point sets. These techniques include reconstructing surfaces from sets of scanned data points that have preferably undergone preprocessing operations to improve their quality by, for example, reducing noise and removing outliers. These techniques include reconstructing a dense and locally two-dimensionally distributed 3D point set (e.g., point cloud) by merging stars in two-dimensional weighted Delaunay triangulations within estimated tangent planes. The techniques include determining a plurality of stars from a plurality of points p_i in a 3D point set S that at least partially describes the 3D surface, by projecting the plurality of points p_i onto planes T_i that are each estimated to be tangent about a respective one of the plurality of points p_i. The plurality of stars are then merged into a digital model of the 3D surface.

Methods for characterizing a three-dimensional (3D) sample of porous media using at least one measuring tool that retrieves two or more set of transmitted measured data at two or more depths of the sample, such that the retrieved two or more set of transmitted measured data is communicated to a processor and computed in at least one multi-point statistical (MPS) model.

A system and method for animating facial motion comprises an animation processor adapted to generate three-dimensional graphical images and having a user interface and a facial performance processing system operative with the animation processor to generate a three-dimensional digital model of an actor's face and overlay a virtual muscle structure onto the digital model. The virtual muscle structure includes plural muscle vectors that each respectively define a plurality of vertices along a surface of the digital model in a direction corresponding to actual facial muscles. The facial performance processing system is responsive to an input reflecting selective actuation of at least one of the plural muscle vectors to thereby reposition corresponding ones of the plurality of vertices and re-generate the digital model in a manner that simulates facial motion. The muscle vectors further include an origin point defining a rigid connection of the muscle vector with an underlying structure corresponding to actual cranial tissue, an insertion point defining a connection of the muscle vector with an overlying surface corresponding to actual skin, and interconnection points with other ones of the plural muscle vectors.

Systems, methods and media for managing digital rights and pre-verification of structural integrity in three-dimensional (3D) printing are provided. In one example, a system comprises at least one module, executing on one or more computer processors, to receive a request from a user to print a 3D object by a 3D printer or printing service and receive a conditional authorization from an owner of digital rights in the 3D object to print the 3D object. The conditional authorization can include a printing specification or limitation. The at least one module pre-verifies, for structural integrity once printed by the 3D printer or printing service, a digital model on which the 3D object is based. In response to a received conditional authorization, the at least one module transmits instructions to the 3D printer or printing service to print the 3D object.

A process and system for fitting, customizing and manufacturing an orthosis for a subject. 3-dimensional coordinates for a plurality of landmarks corresponding to anatomical characteristics of the subject, means for attachment of the orthosis to the subject, and a reference plane are digitally acquired. Then, coordinates of one or more virtual landmarks corresponding to one or more anatomical joint centers or joint projection locations are calculated. The landmarks are clinically aligned in a reference position of one of the anatomical joint centers and a customized digital model of the orthosis is created using the clinically aligned landmarks. Finally, the orthosis is fabricated using a computer aided manufacturing process, based upon an output from the customized digital model.

The invention discloses a method for three-dimensional visualization of a comprehensive pipeline of a metro. The method comprises the following steps of: firstly, extracting comprehensive pipeline data from a comprehensive pipeline drawing; and secondly, carrying out three-dimensional modelling according to the obtained comprehensive pipeline data, and carrying out three-dimensional dynamic displaying on the comprehensive pipeline. In the method for the three-dimensional visualization of the comprehensive pipeline of the metro, a modelling method has digital characteristics and can be edited in a three-dimensional visualization management system; data available for an established three-dimensional pipeline model comes from an auto computer aided design (CAD) drawing; the data is real and reliable; the position information of a three-digital pipeline model in a scene corresponds to the position information of a pipeline in the auto CAD drawing; and the three-dimensional pipeline model is configurable, changeable and manageable.

The invention provides a visual 3D taking and placing method and system based on a cooperative robot. The method comprises the steps that internal and external parameters of a camera of a binocular structured light three-dimensional scanner are calibrated; the hands and eyes of the cooperative robot are calibrated, and a calibration result matrix is obtained; a three-dimensional digital model of to-be-taken-and-placed target objects is collected; the calibrated binocular structured light three-dimensional scanner is adopted to obtain point cloud data of the to-be-taken-and-placed target objects which are stacked in a scattered mode, and the point cloud is segmented to obtain scene point clouds of the multiple to-be-taken-and-placed target objects; the to-be-taken-and-placed target object with the highest grabbing success rate is selected as a grabbing target according to the scene point clouds of the multiple to-be-taken-and-placed target objects; the three-dimensional digital model ofthe grabbing target and scene point pair features are registered, pre-defined taking and placing pose points are registered into a scene, and a registered pose estimation result is obtained and serves as a grabbing pose of the grabbing target; and a preliminary grabbing path track of the cooperative robot is planned. The target object can be accurately recognized, and the grabbing positioning precision is high.

The invention relates to a preparation method of an aesthetic all-zirconia restoration body. The process comprises the steps of: clinically making an impression and a model after tooth preparation, collecting the digital impression, establishing a digital model, designing the shape of the restoration body by being assisted with a computer, cutting into the shape of the restoration body by a digital control lathe, try-wearing on the model, adjusting the outline form, polishing, coloring, glazing, and completing the fabrication of final restoration body. The restoration body is colored by using a coloring zirconia porcelain piece; the coloring process is influenced little by personal factors; an all-zirconium-crown cutting end transparent handling liquid is used to handle the presintered tooth crown, so that the color and the transparence of the zirconia all-porcelain tooth change gradually, so that an ideal aesthetic effect is achieved. The preparation process is free of porcelain coating. The method has no porcelain fracture danger, and the operation is simple. The prepared tooth is few, so 1mm of preparation space is enough to use. The zirconia all-porcelain tooth has excellent biocompatibility, high strength, good transparence and glossiness, and natural and lifelike colors. CAD/CAM (Computer-Aided Design/computer-aided manufacturing) is used for designing and completing the processing, thereby ensuring the marginal adaption and precision of the zirconia all-crown porcelain tooth.

The invention discloses a low-elasticity-modulus titanium-based jawbone implant and a preparation method of the implant. The preparation method mainly comprises the six steps that CT-scanned jawbone section image data are obtained; a rebuilt jawbone three-dimensional digital model is obtained; a jawbone implant digital model of a multi-hole structure is designed and obtained; a machining file of slice layered cross section data is obtained; the selective laser melting technology is adopted for preparing the jawbone implant; and surface treatment is carried out on the implant. The implant is used for treating a patient with jawbone defects, and the CAD digital design technology is used in the design of the implant; and jawbone repairing individualized design and multi-hole support structure design are combined, and through the selective laser melting technology, the low-elasticity-modulus titanium-based jawbone implant is prepared. The implant can meet the individual needs of the patient, and meanwhile can reduce the elastic modulus; and the problems of stress concentration and stress shielding of a traditional jawbone implant are solved, the preparation time is shortened, and the machining difficulty and the production cost are reduced.

The invention provides a three-dimensional entity model reconstruction method based on dense point cloud data. The dense point cloud data is acquired by a laser 3D scanner; 3D laser scanning can rapidly acquire three-dimensional coordinate data of the surface of a measured object in a large-area and high-resolution manner; a rapid and high-precision modeling method is matched, so that the characteristics of rapidness, non-contact, initiative, accuracy and the like are highlighted, data obtained in real time has the characteristics of high accuracy, high density and the like, reconstruction ofa three-dimensional model becomes more convenient, a digital model of an actual object can be created in the virtual world, and rapid and high-accuracy three-dimensional entity model reconstruction based on dense point cloud data is achieved; according to the semantic-based feature extraction method, a large amount of working time is saved, the semi-automatic mode is adopted for operation, the feature extraction precision and accuracy are effectively improved, the cost is greatly reduced, and the precision of the reconstructed three-dimensional solid model is obviously improved.

The invention provides a real-time three-dimensional presentation system based on a distributed sensing network. The real-time three-dimensional presentation system comprises a physical space, an information processing layer and a virtual space, wherein the physical space is used for acquiring factory data, and transmitting the factory data to the information processing layer; the information processing layer is used for receiving the factory data, performing preprocessing and analytical calculation on the received factory data by a data pool in order to obtain processed factory data, and transmitting the processed factory data to the virtual space at the same time; and the virtual space is used for receiving the processed factory data, and performing modeling and scene reduction on the processed factory data through digital twin software in order to build a twin digital model of an industrial site. The real-time three-dimensional presentation system has the beneficial effects that thetechnical scheme is oriented to the global control of a factory, so that a user can rapidly and accurately comprehend the running state of equipment on the site in real time; the production process of an actual factory is controlled through a visual interaction interface; and equipment exceptions can be controlled and investigated immediately.

A wall area estimation system generates an estimated wall area measurement of a building based on the received roof measurements (e.g., those generated by, received from or found in a three-dimensional model of the roof) and a reference distance. The reference distance is a measurement indicative of a distance between the roof and a model ground surface placed on an image of the building where the walls of the building meet the ground. This reference distance may be used to determine how for down to extend the walls of the building (e.g., to a ground level) when building a three-dimensional digital model of the building to aid in generating wall area measurements. The resulting wall measurements, roof measurements, measurements of areas missing from the wall used to generate a wall estimate report, or a combined roof and wall estimate report including various different identifiers indicating the different features and measurements based on the three-dimensional model.

Computer implemented methods of producing a bone graft are provided. These methods include obtaining a 3-D image of an intended bone graft site; generating a 3-D digital model of the bone graft basedon the 3-D image of the intended bone graft site, the 3-D digital model of the bone graft being configured to fit within a 3-D digital model of the intended bone graft site; storing the 3-D digital model on a database coupled to a processor, the processor having instructions for retrieving the stored 3-D digital model of the bone graft and for combining a carrier material with, in or on a bone material based on the stored 3-D digital model and for instructing a 3-D printer to produce the bone graft. A layered 3-D printed bone graft prepared by the computer implemented method is also provided.

A system and related method for dynamic data modeling for use in a real-time computerized presentation system includes a presentation engine having a visual interface. Computerized numerical models are each importable into the presentation engine. Each includes a data grid having data cells arranged by columns and rows, where numerical data values are stored within the data cells. At least one data input field controls a manipulation of a first numerical data value in a first data cell using a mathematical function applied to a second numerical data value in a second data cell. A numerical model display, displayable on the visual interface, is based on the first numerical data value and is changed in real-time based on the manipulation of the first numerical data value. A numerical model summary, displayable on the visual interface, combines numerical data from the computerized models imported into the presentation engine.

The invention provides a method for generating a tooth correcting state. The method comprises the following steps: receiving a digital model representing the current tooth state; determining K correcting step-by-step parameters, wherein the correcting step-by-step parameters represent the correcting step numbers for moving the current tooth state to the expected tooth state, and K is an integer greater than or equal to 1; for each correcting step-by-step parameter, generating a group of digital model representing a tooth correcting state set corresponding to the correcting step-by-step parameter, thus obtaining K groups of digital models; and selecting the digital model representing the optimal tooth correcting state set from the K groups of digital models. The invention further provides a method for manufacturing a tooth correcting device based on the obtained tooth correcting state, and the tooth correcting device manufactured according to the method.

The invention relates to a 3D printing-based curved microlens array manufacturing method. 3D printing equipment is adopted to print along the straight conductor direction of a curved surface of a curved microlens array successively so as to form each arc-shaped cross-section layer of the curved microlens array, and the arc-shaped cross-section layers are stacked-up to form a vertical curved microlens array. The manufacturing method specifically contains the following steps: 1, a three-dimensional digital model of the curved microlens array is established and is made discrete along the straight conductor direction of the curved surface of the curved microlens array to form a series of ordered arc-shaped cross-section layers, and numerical control instructions of the 3D printing equipment are generated; 2, the 3D printing equipment is used to successively print each arc-shaped cross-section layer, the arc-shaped cross-section layers are stacked-up layer upon layer, and a printing material undergoes 3D molding so as to form the vertical curved microlens array; and 3, the curved microlens array is placed on a curved substrate which has the same curvature of surface with the curved microlens array and then undergoes subsequent heat treatment, and the curved microlens array finally undergoes polishing treatment to form a smooth microlens surface. The method has advantages of simple manufacturing technology, high precision and low cost.

Various methods, apparatuses/systems, and media for implementing a block chain node device are disclosed. A processor allows hosting a received smart contract on a block chain ledger. The smart contract includes a digital model of a contract that describes base policy between an organization and a client. A receiver receives a side car contract from an external database. The side car contract includes a digital addendum to the smart contract and one or more modifications to one or more terms of the contract according to one or more regulatory provisions. The processor attaches the side car contract to the smart contract, and causes a graphical user interface (GUI) to report the one or more terms of the contract according to the one or more modifications in the side car contract in response to one or more received requests to thereby facilitate compliance with the regulatory provisions.

A method and apparatus for merging design intent of multiple designers with respect to a digital model of an object are described. In one embodiment, the method includes receiving data concerning a change to the digital model performed by a fist designer. The method further includes analyzing the data concerning the change performed by the first designer and data concerning a digital model version created by a second designer, and integrating the change performed by the first designer into the digital model version created by the second designer.