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5689628 |
Coupling a display object to a viewpoint in a navigable workspace
A method and system are disclosed for maintaining a view of a selected display object while navigating in an n-dimensional, navigable workspace. Objects perceptible in the workspace are perceptible...
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5687305 |
Projection of images of computer models in three dimensional space
A system and method for precisely superimposing images of computer models in three-dimensional space to a corresponding physical object in physical space. The system includes a computer for...
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5680524 |
Synthetic environment employing a craft for providing user perspective reference
A multi-dimensional user oriented synthetic environment system allows application programs to be programmed and accessed with input/output device independent, generic functional commands which are...
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5673376 |
Method and apparatus for graphically generating images of arbitrary size
A system and method that generates computer graphic images using anti-aliasing rendering to create sets of offset images each of a lower resolution than the resolution desired. The anti-aliasing...
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5670984 |
Image lens
A method for displaying an image on a display surface which preserves context and detail information when the image is compressed to fit onto a display surface. The image is transformed from a...
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5668939 |
Method and apparatus for rendering a solid three dimensional model from two dimensional input information including closed region recognizing and three dimensional rendering
A system and method for inputting two-dimensional drawing data and classifying that drawing data into plan view data and sectional view data. Closed regions and inclusion relations among the...
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5651676 |
Method of organizing and storing simulated scenery in a flight simulation system
The present invention is an improved flight simulation system. The system organizes data based upon a predetermined number of object types. Each scenery file is divided to separate the data for...
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5649081 |
Method and apparatus for pattern data processing
A method and device for pattern processing whereby accurate and effective processing can be carried out as a user desires. A pattern processing device of this invention comprises an information...
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5644334 |
Status indicators of an improved graphical user interface
An improved graphical user interface comprises novel status indicators pertaining to state attributes associated with objects displayed on a display screen of a computer system. These status...
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5630035 |
Method of sampling a terrain data base
A convergence model is shown and described for accommodating variation in data post spacing in a digital terrain elevation database (DTED) based on longitude and latitude address values for data...
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5619628 |
3-Dimensional animation generating apparatus
In a 3-dimensional animation generating apparatus which uses a computer, the user generates a number of static images having parent-child relationships and which serve as key frames in the sequence...
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5615322 |
Image synthesizing system for producing three-dimensional images
An image synthesizing system capable of synthesizing a high-quality image in real time is provided herein. The image synthesizing system is adapted to process a plurality of overlapping polygons...
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5615318 |
Method and apparatus for visualizing assembled sewing patterns
Waist and chest lengths of sewing patterns in an assembled state are handled as shape features of the sewing pattern. The shape of a reference dummy (dress form) is expanded and changed in form so...
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5615319 |
Method for modifying a geometric object and computer aided design system
In a computer aided design system, a geometric object is defined as a function, preferably a B-Spline, of a piecewise polynomial function. In order to make a local modification of said geometric...
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5613048 |
Three-dimensional image synthesis using view interpolation
Three-dimensional scenes are portrayed from different viewpoints by morphing two-dimensional images. Various key views of a scene are stored, along with offset maps that identify the correspondence...
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5608850 |
Transporting a display object coupled to a viewpoint within or between navigable workspaces
A method and processor-controlled system are disclosed for transporting a selected display object, presented in a graphical image of an n-dimensional, navigable workspace where the selected display...
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5594844 |
Three dimensional view using ray tracing through voxels subdivided numerically using object based parameters
A picture generating apparatus using ray tracing has means for inputting data of objects from a data base for storing data of objects composing a virtual three dimensional space, means for...
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5594843 |
Method and apparatus for creating three-dimensionality in a projected television image
Apparatus and methods are described whereby a projected television image is divided into two horizontally displaced images, and an observer wears glasses to synthesize three-dimensionality from the...
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5594845 |
Method and device for processing an image in order to construct a target image from a plurality of contiguous source images
Method of processing a digital image in order to construct a calculated image, termed the target image (I*), which represents a so-called source image (I) reconstructed with modifications to the...
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5590250 |
Layout of node-link structures in space with negative curvature
Layout data indicate positions in a negatively curved layout space for nodes in a hierarchical branch of a node-link structure. The layout data indicate a parent position for parent nodes and, for...
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5590268 |
System and method for evaluating a workspace represented by a three-dimensional model
An evaluation system which can quantitatively evaluate a virtually produced workspace by adequately providing conditions of an operator and the workspace. The system calculates a motion of the...
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5586246 |
Image synthesis apparatus
An image synthesis apparatus for synthesizing an image using model data including information which defines a three-dimensional structure for an object having a plurality of faces, original image...
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5586232 |
Projection view creation method with vector discrimination onto plane-represented curved surfaces
A method of creating a view of a curved line projected onto a curved surface in a CAD system by using a vector discrimination technique which reduces computation steps required for projection. The...
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5583975 |
Image generating apparatus and method of generating an image by parallel processing thread segments
An image generating apparatus used in the field of image processing such as Computer Graphics. The image generating apparatus comprises an input unit for setting data related to a shape of each...
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5579456 |
Direct rendering of textured height fields
To create a dynamic textured display, images of textured height fields (elevation samples arrayed on a rectangular coordinate grid, as to represent a terrain) are rendered, the system performing an...
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5577176 |
Method and apparatus for displaying a cursor along a two dimensional representation of a computer generated three dimensional surface
A cursor is dynamically attached to a two-dimensional representation of a three-dimensional surface in a CAD system. The system maps input coordinates indicating an initial position and a final...
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5577175 |
3-dimensional animation generating apparatus and a method for generating a 3-dimensional animation
A 3-dimensional animation generating apparatus includes an image data storing section, a view point information input section, an image supervising section, an image data selecting section, a view...
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5574836 |
Interactive display apparatus and method with viewer position compensation
An object-oriented display system which displays an image of a graphical object on a display device, the position at which the object is displayed being a function of the position from which a...
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5566073 |
Pilot aid using a synthetic environment
A pilot aid using synthetic reality consists of a way to determine the aircraft's position and attitude such as by the global positioning system (GPS), a digital data base containing...
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5555354 |
Method and apparatus for navigation within three-dimensional information landscape
A method and apparatus for navigating within a three dimensional graphic display space and manipulating information and data represented by objects in display space. The method and apparatus...
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5550960 |
Method and apparatus for performing dynamic texture mapping for complex surfaces
A system and process is provided which enables the dynamic mapping of texture to a variety of primitives, including complex primitives such as non-uniform rational B-spline surfaces (NURBS). The...
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5550959 |
Technique and system for the real-time generation of perspective images
A technique and system for the real-time computation of visual scenes reduces the three-dimensional computation to two additions and further reduces the need for three-dimensional computations by...
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5548694 |
Collision avoidance system for voxel-based object representation
Voxel-based objects are manipulated and interacted with in a physically ristic way such that during movement of the graphical objects, collisions are automatically detected and the graphical...
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5548693 |
Anti-aliasing method for animation
Data containing the shape and motion of an object, the eye point and similar data is input to generate animation image data. For all frames, the motion of each image point is computed through...
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5544283 |
Method and apparatus for real-time volume rendering from an arbitrary viewing direction
The method and apparatus of the present invention provides real-time reorientation of stored data and real-time visualization for high resolution volumetric datasets from an arbitrary designed...
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5515485 |
Method and device for modifying a zone in successive images
A process modification of the content of a sequence of images which can be represented as a matrix of pixels. For that purpose a non-deformable target zone to be replaced in the scene is identified...
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5513303 |
Moving an object in a three-dimensional workspace
In response to user signals requesting motion of a displayed object, a system presents a sequence of images, each including an object perceptible as a moved continuation of the previously displayed...
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5497451 |
Computerized method for decomposing a geometric model of surface or volume into finite elements
A computerized process for defining finite elements in a surface or volume for ultimately predicting a physical characteristic of the surface or volume. For the surface, for example, the process...
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5497453 |
Method and apparatus for detecting and visualizing interferences between solids
Methods and apparatus for automatically detecting and visually highlighting interference areas of a cross-section through displayed representations of solids. As a cross-sectioning plane (C) sweeps...
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5495562 |
Electro-optical target and background simulation
A computer-based thermal scene simulation system and method for generating synthetic images to facilitate the design and test of missile-borne electro-optical seeker systems. A scene is comprised...
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5483626 |
Method and apparatus for transforming graphics
A graphic-transforming apparatus and method are provided for freely transforming an object graphic with easy operations. A curve or polygonal line to be transformed, that is, the object graphic,...
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5463721 |
Method for constructing a three dimensional scanning trajectory capable of acquiring a complete set of radon data for exact image reconstruction of an object irradiated by a cone beam source
Construction and assessment methods provide a three dimensional scanning trajectory to ensure the acquisition of a complete set of Radon data for exact image reconstruction of an object irradiated...
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5463568 |
Method and apparatus for measuring a distance of a route in a solid figure
An apparatus for measuring a figure distance between first and second points of a solid figure with a measuring device having first and second panels and an axis connecting the panels is provided...
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5448696 |
Map information system capable of displaying layout information
A method for displaying information and system includes the steps of displacing map data on the screen of a display unit, displaying layout data representing one or more segments of a certain floor...
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5446834 |
Method and apparatus for high resolution virtual reality systems using head tracked display
A method and apparatus for accurate head-tracked stereo display on a workstation CRT is disclosed that corrects inaccuracies caused by CRT optical properties. The correction includes modification...
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5444831 |
Developed product shape deciding method for a computer-aided design system
The original planar shape or developed shape of a product to be manufactured by bending is determined using a computer-aided design system. An operator operates a tablet unit to prepare, first and...
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5442734 |
Image processing unit and method for executing image processing of a virtual environment
An image processing unit generates a virtual environment or an artificial reality by displaying a necessary image in accordance with movement of a view direction of a person on a head mounted...
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5432894 |
Graphic data processing system with improved retrieval and display of graphical forms
A method and apparatus for retrieving graphical data from a graphic data processing system that processes graphical forms, the graphic data processing system being responsive to a processing...
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5428716 |
Solid-clip methodology and architecture for clipping solid models and displaying cross-sections using depth-buffers
A method, and apparatus for practicing the method, processes pixels to display a cross-sectioned image of a solid object. The method includes the steps of, for each pixel that projects onto the...
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5428744 |
Object-oriented system for building a graphic image on a display
A method and system for processing graphic objects on a computer with a memory and an attached display and performing binary constructive area geometry (CAG) operations on area-defining geometries...
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