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8000 results about "Three dimensional model" patented technology

Three-dimensional (3D) models represent a physical body using a collection of points in 3D space, connected by various geometric entities such as triangles, lines, curved surfaces, etc. Being a collection of data (points and other information), 3D models can be created by hand, algorithmically (procedural modeling), or scanned.

Apparatus and method for production of three-dimensional models by spatial light modulator

An apparatus and the method of its operation for rapid prototyping of a three-dimensional object which includes a radiant energy source of a wide beam of radiant energy of suitable intensity and wavelength for curing a layer of photo-curable resin contained in an open vat, a spatial light modulator (SLM) having an array of pixel elements which are individually digitally controllable by a computer, for modulating the radiant energy beam projected from the radiant energy source on a pixel by pixel basis, to form a series of time sequential images of the cross-sectional laminae of the object, an optical system for focusing each image formed by the SLM, one at a time, onto successive layers of photo-curable resin for predetermined exposure times to thereby form stacked laminae of cured resin, each lamina of cured resin being in the shape of a different one of the cross-sectional laminae, and a piston support for lowering each lamina of cured resin after it is formed by the SLM and for depositing a layer of resin corresponding to the thickness of one cross sectional lamina of the three-dimensional object before the step of projecting a new image by the SLM. The SLM, the piston support for lowering, and the optical system operate repeatedly and sequentially until a complete copy of the object is thereby produced.

System and method for simulation of virtual wear articles on virtual models

A system and method for designing a wear article for an object comprises providing a virtual three-dimensional model of the object, including first data representing three dimensions of the object. Virtual two-dimensional patterns representing different portions of the wear article are assembled into a virtual three-dimensional wear article. The virtual three-dimensional wear article includes second data representing three dimensions of the wear article. A material type is associated with one or more of the virtual patterns and the virtual three-dimensional wear article. The material type has third data representing at least one physical property of the material type. In order to display the virtual three-dimensional wear article on the virtual three-dimensional model, the first and second data are compared to determine the non-intersection of the virtual three-dimensional wear article with the virtual three-dimensional object. The virtual three-dimensional wear article is then conformed to the virtual three-dimensional model within constraints imposed by the third data. With this arrangement, the system and method enables the virtual wear article to stretch, flex, sag, etc., on the virtual model to better approximate the real-life fit and look of the wear article on an object during design of the wear article.

Optimizations for live event, real-time, 3D object tracking

InactiveUS20090046152A1Maximized manufacturingMaximized installation costTelevision system detailsImage analysisView cameraIce hockey
A system 1000, and its alternates 1002 through 1022, for automatically tracking and videoing the movements of multiple participants and objects during an event. System 1000 and its alternates comprise a scalable area tracking matrix of overhead tracking cameras 120c, whose individual field-of-views 120v combine to form a contiguous view 504m of the performance area where the event is being held. As participants 110, and all other necessary objects such as 103 (e.g. a puck in ice-hockey) and 104 (e.g. a stick in ice-hockey) move about during the event, computer 160 analyzes the images from contiguous view 504m to create a real-time tracking database at least including participant and object centroid locations respective to the performance area, and preferably including their identities matched to these ongoing locations. System 1000 and its alternates then employ the real-time database to automatically direct, without operator intervention, one or more side-view cameras such as 140-a, 140-b, 140-c and 140-d, to maintain optimal viewing of the event. The participants and objects may additionally be marked with encoded or non-encoded, visible or non-visible markers, either denoting centroid locations visible from their upper surfaces, and/or non-centroid locations visible from perspective views. The encoded markers are preferably placed on upper surfaces and detectable by computer 160 as it analyzes the images from contiguous overhead field-of-view 504m, thus providing participant and object identities to correspond with ongoing locations, further enhancing algorithms for subsequently controlling side-view cameras 140-a through 140-d. The non-encoded markers are preferably placed on multiple non-centroid locations at least on the participants that are then adjustably viewable by system 1000 and its alternates as the system uses the determined locations of each participant from the overhead view to automatically adjust one or more side-view cameras to tightly follow the participant. The resulting images from side-view cameras 140-a through 140-d may then be subsequently processed to determine the non-encoded marker locations, thus forming a three dimensional model of each participant and objects movements.

Augmented-reality-based three-dimensional interactive learning system and method

The invention provides an augmented-reality-based three-dimensional interactive learning system and an augmented-reality-based three-dimensional interactive learning method. The system comprises an information processing device, a photographic device, a display device and at least one physical teaching aid, wherein the physical teaching aid is provided with identification information; the photographic device is used for performing video acquisition on a real environment after augmented reality application is started; and the information processing device comprises an identification module for identifying the identification information on the physical teaching aid, an orientation calculation module for calculating the spatial orientation information of the physical teaching aid, and a three-dimensional rendering module for acquiring a three-dimensional model corresponding to the identification information, rendering and generating a corresponding virtual object, and placing the virtual object at a corresponding position in a video image for display according to the spatial orientation information of the physical teaching aid. According to the system and the method, the real environment and the virtual object are overlapped in the same scenario in real time, so that a more vivid sensory experience is provided for a user, and meanwhile, a teaching effect is improved by utilizing the instinct of a person for the recognition of a three-dimensional space.
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