Match Document Document Title
4930092 Polygon display apparatus and method  
Data is generated for graphically displaying objects having surfaces defined by vertex locations, each having a particular intensity. The values of electrical signals that represent the...
4912659 Parallel surface processing system for graphics display  
A Pipeline and Parallel Processing system for generating Surface Patches for both Wireframe and Solid/Shaded Models in a Raster Graphics Display. The inputs to a Transformation Processor are the...
4912664 Method and apparatus for generating a mesh for finite element analysis  
The method of mesh generation comprises a two-step automatic process that requires no user input once a geometric representation of the object has been provided to the apparatus. In the method,...
4899293 Method of storage and retrieval of digital map data based upon a tessellated geoid system  
A method for storage and retrieval of digital map data representative of a tessellated sphere including five zones. Firstly, the number of tessellations for each zone is defined. Secondly, the...
4888583 Method and apparatus for rendering an image from data arranged in a constructive solid geometry format  
A method and an apparatus render on a display screen (14) an image of a three-dimensional object. The object is represented by image data arranged in a constructive solid geometry format including...
4864520 Shape generating/creating system for computer aided design, computer aided manufacturing, computer aided engineering and computer applied technology  
A form creating system providing a free access to a form to be created through the whole process from its first or design step to its final or manufacturing step. In this system, the position of a...
4855938 Hidden line removal method with modified depth buffer  
Polygon vertex data is processed in three steps to create a graphics display without hidden lines and without gaps in the displayed lines. The technique permits the processing of triangles rather...
4835712 Methods and apparatus for imaging volume data with shading  
Method and apparatus for shading an image volume so that surfaces and boundaries may be rendered to subvoxel accuracy. A gradient vector is generated for each voxel of an image volume by...
4827413 Modified back-to-front three dimensional reconstruction algorithm  
A method for displaying three dimensional imaging system data uses a modified Back To Front algorithm. With that algorithm, imaging system data are interpolated and converted into a series of...
4766555 System for the automatic generation of data bases for use with a computer-generated visual display  
A system for generating digital image data bases automatically that is principally for use in visual systems of simulators and for use when a particular geographic area is not required. A data...
4729098 System and method employing nonlinear interpolation for the display of surface structures contained within the interior region of a solid body  
A method and apparatus for displaying three dimensional surface images includes the utilization of a case table for rapid retrieval of surface approximation information. Eight cubically adjacent...
4710876 System and method for the display of surface structures contained within the interior region of a solid body  
A method and apparatus for displaying three dimensional surface images includes the utilization of a case table for rapid retrieval of surface approximation information. Eight cubically adjacent...
4703426 Method and apparatus for reviewing and modifying horizons of a three-dimensional seismic volume  
A computer system reviews and modifies horizons tentatively defined by a network of pairs of turnings. The curvature for each of the paths of turnings of the network in both the X and Y directions...
4694404 High-speed image generation of complex solid objects using octree encoding  
To generate two-dimensional images of three-dimensional solid objects at high speed, an object is defined within a three-dimensional universe hierarchically subdivided into a plurality of discrete...
4646251 Computer graphics, parametric patch parallel subdivision processor  
A system is disclosed for subdividing parametric patches for use in a computer graphics system to develop images. The system utilizes initial data, provided as by an interactive user, to represent...
4525858 Method and apparatus for reconstruction of three-dimensional surfaces from interference fringes  
A fully automatic method for rapidly and unambiguously interpreting fringe patterns, including those having branched fringes, is provided. The information from the fringe patterns processed by the...
3889107 System of polygon sorting by dissection  
A polygon-dissection structure is disclosed incorporated in a system for processing geometric data, e.g. data representing three-dimensional polygons, as by subdividing such polygons to accomplish...