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6323863 |
Object structure graph generation and data conversion using the same
Shape expressions in CAD or CG have often been carried out in polygon data. In polygon representations, the amount of data becomes very large if precision is pursued. Another shape representation...
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6313838 |
Estimating graphics system performance for polygons
A method for estimating rendering times for three-dimensional graphics objects and scenes is disclosed. The rendering times may be estimated in real-time, thus allowing a graphics system to alter...
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6313837 |
Modeling at more than one level of resolution
A method, computer system and computer program are disclosed for representing a first surface at multiple levels of resolution. The first surface is partitioned into nodes with one or more...
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6310619 |
Virtual reality, tissue-specific body model having user-variable tissue-specific attributes and a system and method for implementing the same
A three-dimensional, virtual reality, tissue specific model of a human or animal body which provides a high level of user-interactivity. The model functions can be analyzed and user-modified on a...
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6308144 |
Method and apparatus for providing three-dimensional model associativity
A CAD/CAM system provides a positive indication to a user that the user has located a cursor so that an object on a two-dimensional sketcher plane has been aligned with a point of interest within...
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6300952 |
Generation and use of compressed image data
A method and computer system are described for generating compressed image data, and for rendering pixel data using the compressed image data. A plurality of hulls are defined in the image, each...
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6295069 |
Three dimensional computer graphics tool facilitating movement of displayed object
A object movement tool (100) creates an object movement reference frame (26) which has three frame orientation knob handles lying along mutually orthogonal frame handle axes. Provision of the three...
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6285372 |
Multiresolution adaptive parameterization of surfaces
An irregular connectivity mesh representative of a surface having an arbitrary topology is processed to generate a parameterization which maps points in a coarse base domain to points in the mesh....
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6278457 |
Methods and apparatus for performing sampling based synthesis of three-dimensional geometric models
A presently preferred computer implemented method for generating a simplified model of a geometric model includes a first step of visualizing a geometric model from at least one viewpoint and then...
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6278458 |
Method of reduction and compression of model, and medium for storage thereof
A rectilinear grid is positioned over a model to be compressed. Each vertex of the grid is assigned a binary value in dependence upon whether the vertex intersects the model. Cells, defined by a...
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6278460 |
Creating a three-dimensional model from two-dimensional images
A method is provided in which three-dimensional models are created from a number of two-dimensional images, e.g., a video stream of two-dimensional images or still images, using a single camera...
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6266062 |
Longest-edge refinement and derefinement system and method for automatic mesh generation
A method, mesh data structure and apparatus is disclosed for producing an improved/refined/derefined mesh of finite elements for a three-dimensional object showing boundaries and faces. The...
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6259452 |
Image drawing system and method with real-time occlusion culling
To avoid needless processing of non-visible portions of a 3D scene, an occlusion culling method which dynamically identifies large occluders as the viewpoint moves is applied to discard non-visible...
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6256039 |
Methods for manipulating curves constrained to unparameterized surfaces
A computer-implemented method for drawing and manipulating curves on polygon mesh surfaces possesses a built in surface constraint that provides a better intuition for the shape and position of a...
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6249287 |
Method of modeling a closed surface geometry
A method for modeling an object with a polygonal mesh includes obtaining a closed-surface polygonal mesh and positioning the closed-surface polygonal mesh relative to the object. A ray is projected...
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6249600 |
System and method for generation of a three-dimensional solid model
A system and method for generating a three-dimensional representation of an object or scene which minimizes the number of range scans required from different positions to produce an image of...
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6243106 |
Method for figure tracking using 2-D registration and 3-D reconstruction
In a computerized method, a moving articulated figure is tracked in a sequence of 2-D images measured by a monocular camera. The images are individually registered with each other using a 2-D...
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6240308 |
Method and apparatus for archiving and displaying anatomico-physiological data in a normalized whole brain mapping and imaging system
Method and apparatus for archiving and simultaneous display of brain scan images and a plurality of brain maps. The brain maps are proportioned to the individual brain of the scan images by a...
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6236403 |
Modeling and deformation of 3-dimensional objects
A method of modeling a 3-dimensional object including performing one of a rounding operation generating the 3-dimensional object from a control grid and an inverse rounding operation generating a...
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6232976 |
Optimizing dynamic/animating textures for use in three-dimensional models
A method, system and computer-readable medium for generating images of three-dimensional models in a digital three-dimensional world, wherein the three-dimensional models include markup documents...
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6229552 |
System and method for automatic motion generation
We apply manipulation planning to computer animation. A new path planner is presented that automatically computes the collision-free trajectories for several cooperating arms to manipulate a...
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6227973 |
Video game system using terrain profile information
A video game system for simulating a golf game displays three-dimensional image information indicative of the terrain profile of a golf course and image information of a golf ball on the display...
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6229546 |
Rapid terrain model generation with 3-D object features and user customization interface
A method and system 5 for generating a three-dimensional world model for simulated real terrain optimized for a personal computer. Terrain data and other environmental data are acquired from at...
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6230066 |
Simultaneous manufacturing and product engineering integrated with knowledge networking
Method of simultaneously carrying out manufacturing and product engineering integrated with knowledge networking. The method comprises: (a) creating a logic modeller by (i) identifying elements of...
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6226004 |
Modeling system using surface patterns and geometric relationships
Method for creating a three dimensional model of a scene based on a two dimensional image of the scene. The method includes identifying a plurality of surfaces in the image, identifying a plurality...
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6225978 |
Video processing system for movement simulation
A video processing system for use in creating apparent three dimensional movement of a two dimensional video image on a display screen 20. At least one set of axes is displayed on the image to be...
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6222465 |
Gesture-based computer interface
A system and method for manipulating virtual objects in a virtual environment, for drawing curves and ribbons in the virtual environment, and for selecting and executing commands for creating,...
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6219049 |
Mate inferencing
A dynamic mate inferencing system permits display and manipulation of a computer model, including features of allowing a user to select a feature of the model, determining a characteristic geometry...
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6219055 |
Computer based forming tool
A forming tool is provided for manipulating a computer model, including mechanisms for allowing a user to define a forming tool for creating a form feature of the model. Characteristics of the...
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6204853 |
4D KAPPA5 Gaussian noise reduction
The noise reduction system of the present invention takes into account that noise is random with little between images adjacent physically, and in sampling time. It also takes into account the fact...
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6204860 |
Method and apparatus for geometric model deformation using wires
A system that defines a wire curve deformation primitive with a free-form parametric curve associated with the closest points to the curve on a surface of a model. The wire curve includes a radius...
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6201546 |
Systems and methods for generating three dimensional, textured models
A method for creating a three dimensional, textured model of at least one object is provided. The method includes identifying regions of the at least one object in a number of two dimensional...
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6201543 |
Framework for segmentation of cylindrical structures using two dimensional hybrid models
A method of modeling a structure comprises the steps of initializing a parametric component of a hybrid model from a volumetric image, the volumetric image comprising image planes, creating...
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6198487 |
Ole for design and modeling
A method for manipulating a first three-dimensional object, in a computer system including a display, a first software application, and a second software application. The present method includes...
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6195789 |
Method for circuit design on a spherical semiconductor having critical dimensions
A method for designing a circuit on a spherical shaped semiconductor device using a great circle and a small, which is either parallel or perpendicular to the great circle, to define critical...
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6195098 |
System and method for interactive rendering of three dimensional objects
An interactive rendering system which can minimize computational demand while allowing a designer to manipulate one or more selected objects in a scene is disclosed. A scene is rendered to a scene...
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6191797 |
Expression tree optimization for processing obscured graphical objects
The present invention relates to a method, apparatus and system for optimizing an expression tree (101,902,1102) for compositing an image. Such an expression tree (101,902,1102) can comprise at...
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6184890 |
Method and apparatus for rendering objects on a display with added realism
The graphics applications of a 2-D graphics computer system provide each object to be rendered on a 2-D raster display with a pair of rendering reference coordinates (x and y), and a relative depth...
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6177034 |
Methods for making prosthetic surfaces
Methods for reproducing a 3D object surface are provided. A preferred method according to this invention includes (1) identifying a real object surface, (2) acquiring at least a 3D data set with a...
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6166741 |
Graphics segment organization in a graphics system
A graphics system is provided that utilizes a tree-structured organization of graphic segments (a-m) which potentially overlap when presented as a two-dimensional image. Each child segment in said...
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6160907 |
Iterative three-dimensional process for creating finished media content
An integrated media production technique for refining a finish quality media content. The technique permits a media production to be defined as a computerized choreography model of a virtual stage...
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6157387 |
Image generating apparatus and method
An image generating apparatus comprising a multi-plane buffer comprising a plurality of planes, and can record R, G, B, A and Z values as pixels, and a multi-plane buffer processor which stores in...
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6151026 |
Image processing apparatus and image processing method
An image processing apparatus and an image processing method are proposed for the high speed generation of a model, such as a plane picture in animation, for which an outline is drawn. In the image...
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6151028 |
Image processing apparatus, method and system
In order to enable plural users to share a virtual environment which includes not only simple shape data, but also data of an object having a highly complicated shape, a terminal equipment displays...
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6144375 |
Multi-perspective viewer for content-based interactivity
A method and apparatus for interactively viewing a real-world environment. The viewer includes a user interface having a first window for displaying a two-dimensional representation of a...
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6137497 |
Post transformation clipping in a geometry accelerator
A system and method for performing view clipping and model clipping of graphics primitives in a geometry accelerator of a computer graphics system. The method includes performing view clipping and...
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6137492 |
Method and system for adaptive refinement of progressive meshes
A general method and system for adaptively refining an arbitrary progressive mesh representation for a graphical geometric model is presented. A real-time method for adaptively refining and...
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6138052 |
Product forming apparatus having computer-based device for non-contact gauging of a product size
An apparatus and method for forming product using a computer-based device for non-contact gauging a product size of a forming product in an aperture environment having measurement inhibiting...
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6133922 |
Method of integrating a blend or chamfer surface replacing an edge of a geometrical body into a solid model
In a method of integrating a blend or a chamfer surface replacing an edge of a geometrical body into a solid model, a primary blend or chamfer surface is defined and the primary boundaries between...
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6133921 |
Constructing shape skeletons of 3D objects using generalized Voronoi diagrams
Starting with a solid model of a 3D object, an accurate skeleton is produced by minimizing internal and edge errors of an initial approximate skeleton. To produce the initial approximate skeleton,...
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