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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...
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,...
6128018 Simulation apparatus and information storage medium  
A simulation apparatus and an information storage medium are described which can perform collision decision for a moving object with respect to another displayed object with a reduced the amount of...
6128020 Computer system supporting design operation of three-dimensional object and method therefor  
A two-dimensional data reference section refers to two-dimensional drawing data stored in a two-dimensional data storage section, and specifies two-dimensional drawing data including sketch...
6124864 Adaptive modeling and segmentation of visual image streams  
A technique for converging upon a computer-based model of a real world or synthetic scene. The computer model makes use of abstraction-based data objects as well as image-based data objects. A...
6124858 Raster image mapping  
Method and apparatus rendering a two-dimensional resolution-dependent raster image as applied to a three-dimensional surface modeled object. The rendering may be performed by digital electronics, a...
6125197 Method and apparatus for the processing of stereoscopic electronic images into three-dimensional computer models of real-life objects  
A method and apparatus for extracting three-dimensional (3-D) data from a target object is disclosed. A plurality of markers are formed on the object. A plurality of images are captured of the...
6115046 Method and apparatus for generating three dimensional drawing on a graphics display  
A design system for designing, dynamically changing and displaying design drawings. The invention allows a user to select a solid object from a display as the current, active object. The user then...
6108447 Method and apparatus for estimating frame rate for data rate control  
A method for managing data in a video sequence includes estimating a frame rate of the video sequence using time stamps of instructions received from an application program interface. A number of...
6108006 Method and system for view-dependent refinement of progressive meshes  
A method and system for adaptively refining an arbitrary progressive mesh representation for a graphical geometric model according to changing view parameters is presented. The method uses...
6100893 Constructing solid models using implicit functions defining connectivity relationships among layers of an object to be modeled  
A solid model is constructed from surface point data that represent layers of an object. The model is represented as the level set of an implicit function that is fitted to the surface point data....
6081272 Merging dummy structure representations for improved distribution of artifacts in a semiconductor layer  
A method for optimally sizing dummy structures in an integrated circuit design is disclosed. Adjacent dummy structures are merged to provide a composite merged dummy structure. Each side of a first...
6081273 Method and system for building three-dimensional object models  
A method and system for building virtual reality object models. The method includes defining an object space, generating multiple two-dimensional real images of the object, and selecting multiple...
6081268 Method for ignoring redundant constraints in a graphic editor  
Using an input device of a computer system, a graphic drawing is defined to include at least one graphic component. The graphic component is subject to a plurality of constraints. At least one of...
6078330 Solid model construction method and apparatus  
To simplify the solid model selection work of the user. An image processing unit prepares a cell decomposition model from three orthographic view data, a link of individual cells C1, C2, C3, C4, ....
6064390 Apparatus and method for representation of expression in a tissue-like system  
An apparatus and method for representing expression in a tissue-like system, that may include a human face, where the system is particularized to a specified individual. A graphical representation...
6061469 Object rendering system to produce X-ray like images  
An object rendering system having a specialized algorithm is provided to convert a material and geometric description of an object to an X-Ray image of that object for use in medical applications...
6057849 Method of displaying geometric object surfaces  
Geometric surfaces of objects are displayed by a method which generates surface data of at least one object and stores this surface data in a first memory, generates data records for all surface...
6058259 Method and apparatus for automatically generating solid model and computer readable storage medium  
An apparatus automatically generates a solid model from a plurality of plan views. The apparatus includes an extraction unit for extracting information related to surfaces from the plan views, a...
6057827 Automatic pointer positioning for 3D computer modeling  
In a computer graphics modeling system, a method for accurately positioning a cursor on a geometric point of a three dimensional object (such as an object vertex) shown in a two dimensional...
6054991 Method of modeling player position and movement in a virtual reality system  
In a virtual reality system (20) an operator perceives being in a virtual reality world (74) of virtual reality images (62). The system (20) models the relative position and movement of objects...
6052517 Spherical cell design for VLSI circuit design on a spherical semiconductor  
A method for designing a circuit on a spherical shaped semiconductor integrated circuit using uniform unit shapes capable of cover the surface of the sphere in a matingly corresponding orientation...
6046745 Three-dimensional model making device and its method  
Disclosed is an image processing arrangement to determine camera parameters and make a three-dimensional shaped model of an object from a single frame picture image in an easy manner in an...
6040836 Modelling method, modelling system, and computer memory product of the same  
A modelling method, a modelling system and a computer memory product create a three-dimensional model of an object in a computer screen. A two-dimensional image and an existing model are positioned...
6040839 Referencing system and method for three-dimensional objects displayed on a computer generated display  
A referencing system and method for determining relative distances and locations of three-dimensional objects displayed on a computer generated display, to enable the objects to be connected or...
6037945 Graphical method for modeling and estimating construction costs  
A method and system for modeling rooms or chambers in a structure for intuitive and accurate estimation of process parameters (e.g., material and labor costs for performing the process) associated...
6034739 System for establishing a three-dimensional garbage matte which enables simplified adjusting of spatial relationships between physical and virtual scene elements  
A new method and apparatus for creating, positioning and manipulating a garbage matte which obscures everything outside of a three-dimensional physical set or blue stage. Effectively, the garbage...
6035305 Computer-based method of structuring product configuration information and configuring a product  
A computer based method of collecting, structuring, and displaying product configuration information, and using the product configuration information to produce a computer program that validates...
6031541 Method and apparatus for viewing panoramic three dimensional scenes  
A computer system generates a cylindrical environment map comprising a plurality of elements and associated information pertaining to images of a panoramic scene by storing in memory information...
6025847 Three dimensional modeling system with visual feedback  
One embodiment includes a method of generating a 3D model from an image using a computer system. The image is of an arrangement of physical objects. The method comprises the following. Display the...
6023276 Image processing apparatus and method for forming a three-dimensional display  
Inputted right and left images of a stereoscopic image are displayed on a bitmap display 1-5, and vertices to be used for forming three dimensional model of each object are inputted by a pointing...
6020890 Two-dimensional image display device for three-dimensional computer graphics model  
In a two-dimensional image display device for a three-dimensional computer graphics model, adjacent display screen units are combined by a joint with a sensor. The relative positions or relative...
6012022 Measuring aid system  
A part program (measurement procedure) file 61 including definition information that defines the shape of a measurement object and measurement procedure information that defines a measurement...
6009435 Progressive compression of clustered multi-resolution polygonal models  
A computer system progressively stores and transmits compressed clustered multi-resolution polygonal models. The computer uses a data structure that represents a clustered multi-resolution...
6005548 Method for tracking and displaying user's spatial position and orientation, a method for representing virtual reality for a user, and systems of embodiment of such methods  
The invention relates to methods and systems for determination of position and orientation of users in a space and display of virtual space, and can be used in interactive computer games,...
5999186 Reference based parametric dimensioning method and system  
The described CAD system enables a drafter to easily enter dimension entities, which describe the physical dimensions of an object in a CAD drawing or model. The dimension entities define either...
5999187 Fly-through computer aided design method and apparatus  
A fly-through, three-dimensional computer aided design system is provided. Computational requirements are bounded, at least in part by defining a bounded volume or world defining the volume which...
5999185 Virtual reality control using image, model and control data to manipulate interactions  
A virtual reality data presentation system capable of improving naturalness of the system operation and data presentation. In the system, 3D model is presented according to 3D model data; input...
5999188 System and method for parametric surface representation from polygonal descriptions of arbitrary objects  
The present invention addresses the problem of describing an arbitrary object (up to user-defined limits) given a set of triangles with vertex normals describing the object. A novel method of...
5995107 Caching in a three dimensional modeling and animation system  
A caching system for a 3D modeling system. Intermediate channel results, created during the generation of a representation of an object, are cached. The caching increases the speed of system. In...
5990897 Methods for automatically generating a three-dimensional geometric solid from two-dimensional view sets including automatic segregation of open, closed and disjoint curves into views using their center of gravity  
Techniques are developed for defining an engine which has as its input two-dimensional drawing views, wherein the engine produces a three-dimensional geometric solid. The engine comprises, among...
5990896 Rapid and efficient terrain surface finding system  
A system for quickly finding a point in a virtual environment "on the gro" or beneath another point involves finding the intersection of a "ground" polygon representing the terrain with a single...
5990895 Three-dimensional to two dimensional data processing and conversion device and method of using the same  
Three-dimensional data processing device and three-dimensional data processing method for splicing together two pieces of three-dimensional data taken from different directions. Three-dimensional...
5986666 Method for dynamic generation of synthetic images with automatic detail level, and implementation device  
A method for dynamic generation of synthetic images employs Delaunay mesh generation. Only the terrain portions of which a significant variation in the detail level takes place are processed in...
5986667 Mechanism for rendering scenes using an object drawing subsystem  
A graphics rendering system allows retained-mode building and editing of a model, independently of the choice of renderer. Application program calls to the rendering system to draw an object...
5973678 Method and system for manipulating a three-dimensional object utilizing a force feedback interface  
A method and system for manipulating a three-dimensional object in a computer-aided design (CAD) environment utilizes a force feedback interface. A gravitational sphere is defined around each of...
5974423 Method for converting a digital elevation database to a polygon database  
A Digital Elevation Database is converted to a Polygon Database by creating square cells of varying sizes, starting with a minimum size cell. A center elevation point in the cell is used to form...
5971583 Method and apparatus for defining surfaces of three-dimensional object from three-dimensional wire-frame model  
Computer-aided method and apparatus for defining surfaces of a three-dimensional object on the basis of a three-dimensional wire-frame model, wherein a plurality of pairs of edges selected from...
5969722 Methods and apparatus for creation of three-dimensional wire frames and for three-dimensional stereo morphing  
A 3-dimensional wire frame representation is derived from a real 3-dimensional objects, where the surface of the object is generally featureless, by projecting a non-uniform pattern of randomly...
5966133 Geomorphs and variable resolution control of progressive meshes  
An efficient, lossless, continuous-resolution representation (the "PM representation") of highly detailed geometric models for computer graphics specifies a succession of progressively more...