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Class 345/610 - Linear


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter wherein the interpolation is performed between
No. of patents: 51
Last issue date: 10/21/2008


  2  
NumberTitleIssue Date
6614447Method and apparatus for correcting opacity values in a rendering pipeline
A method corrects opacity values of samples in a rendering pipeline. The method partitions a range of uncorrected alpha values into a plurality of segments in a low to high order. Corrected alpha values for uncorrected alpha values in the highest segment ...
09/02/2003
6518974Pixel engine
In accordance with the present invention, the rate of change of texture addresses when mapped to individual pixels of a polygon is used to obtain the correct level of detail (LOD) map from a set of prefiltered maps. The method comprises a first determinat...
02/11/2003
6466226Method and apparatus for pixel filtering using shared filter resource between overlay and texture mapping engines
A configurable filter module for providing shared filter resource between an overlay engine and a texture mapping engine of a graphics system. The configurable filter may comprise a plurality of linear blend units each of which receives data input from on...
10/15/2002
6438275Method for motion compensated frame rate upsampling based on piecewise affine warping
Interpolation of a new frame between a previous frame and a current frame of a video stream by motion compensated frame rate upsampling. The interpolation method includes identifying nodes and edges of objects such as triangles present in the previous fra...
08/20/2002
5553208Image synthesizing system having a field buffer unit that stores texture coordinates
An image synthesizing system is provided which can increase the speed of its hardware and reduce the scale of the same by using the subsampling/interpolation. A processor unit (80) determines coordinates of each dot and associated texture coordinates in p...
09/03/1996
5499324Graphic display apparatus with improved shading capabilities
A graphic display apparatus includes a geometry transforming part for inputting graphic data of a target object and transforming the graphic data into coordinate values of a device coordinate system which is used by the graphic display apparatus, an area ...
03/12/1996
5307450Z-subdivision for improved texture mapping
A graphical display system and a method for Z-subdivision of polygons into quadrilaterals and triangles whose vertices are arranged between two adjacent Z planes. This slicing allows both atmospheric and texture parameters to be interpolated linearly with...
04/26/1994
5214753Video system with parallel attribute interpolations
A mathematical computation circuit to interpolate attribute values along a line between two points where the attributes are known and a video circuit using the interpolation circuit. The interpolation circuit includes a circuit to calculate the rate of ch...
05/25/1993
4974177Mapping circuit of a CRT display device
In a mapping circuit of a CRT display device in accordance with the present invention, vertex calculating means (2 and 3) evaluates corresponding relations between vertexes of a three-dimensional polygon and vertexes of a two-dimensional polygon and incli...
11/27/1990
4945500Triangle processor for 3-D graphics display system
A process which stores a representation of a polygon forming a portion of a three-dimensional object and compares the polygon to pixels from a scan line as they are passed by. The processor stores a representation of a polygon and compares each pixel pass...
07/31/1990
4901258Method of and apparatus for generating look-up table data
Basic data obtained by thinning-out data to be written in a look-up table are previously operated by a computer and stored in a basic memory table. Coefficient data required for linearly interpolating the basic data are stored in a coefficient memory tabl...
02/13/1990
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