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PIXAR Patents
Assignee:
PIXAR
Address:
Emeryville, CA
No. of patents:
169
Patents:


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Patent Number Title Of Patent Date Issued
6707452 Method and apparatus for surface approximation without cracks March 16, 2004
A method and apparatus for surface approximation without cracks. In one or more embodiments, a surface to be rendered is split into multiple adjacent regions (e.g., subdivision surfaces or patches). A data structure is associated with each boundary edge between two regions for storage of
6697519 Color management system for converting computer graphic images to film images February 24, 2004
A system for efficiently converting computer graphics images to film images with accurate color management is described. The system involves the creation of a direct mapping of chromaticity and intensity data from the values used to generate images on a computer monitor to the values use
6677947 Incremental frustum-cache acceleration of line integrals for volume rendering January 13, 2004
A method for rendering participating media effects is disclosed. At least one object having a surface is defined and a lattice, aligned with a camera, is also defined that encompasses the at least one object. A volumetric line integral is computed from the camera to lattice points in
6172705 Method and apparatus for a film scanner interface January 9, 2001
A digital film scanner interface obtains digital image data produced by projecting a motion picture film frame onto a sensor. The image data is transferred from the sensor to a Digital Signal Processor ("DSP") block. The DSP block processes the image data to, for example, minify, magnify
6026180 Method and apparatus for compression and decompression of color data February 15, 2000
The present invention is a method and apparatus for compressing and decompressing data. In particular, the present invention provides a method for compressing color video data for storage on a CD-ROM for later playback on a computer system. The present invention uses an asymmetrical
5867169 Method and apparatus for manipulating color values in a computer graphics system February 2, 1999
A method for manipulating color values in a computer graphics system. Colors are mapped into a color space referred to as "HSY space," which provides independent control over the orthogonal parameters of hue, saturation and luminance. The intuitive color description qualities of hue
5831757 Multiple cylinder deflection system November 3, 1998
The present invention provides precise constant velocity linear motion for reading and writing information over an area. The present invention uses a multiple cylinder linear feed unit to move a reflective surface and control the deflection of one or more beams. One embodiment of the pre
5815202 Method and apparatus for scanning an image using a moving lens system September 29, 1998
A method and apparatus for scanning an image using a moving lens scanning system is described. The present invention moves film through a pin registered film gate, creating a projected image. A light source exposes images on the film in the film gate. The projected image passes through a
5771109 Method and apparatus for digitizing films using a stroboscopic scanning system June 23, 1998
The present invention is a method and apparatus for digitizing film frames. The invention utilizes different colored strobe lights housed in an integrating sphere, instead of the prior art filter and shutter mechanism. The invention's control system flashes each strobe light in sequence
5734744 Method and apparatus for compression and decompression of color data March 31, 1998
The present invention is a method and apparatus for compressing and decompressing data. In particular, the present invention provides a method for compressing color video data for storage on a CD-ROM for later playback on a computer system. The present invention uses an asymmetrical
5381518 Method and apparatus for imaging volume data using voxel values January 10, 1995
An imaging system for providing apparatus and method for projecting a two dimensional (2D) representation of three dimensional (3D) volumes where surface boundaries and objects internal to the volumes are readily shown, and hidden surfaces and the surface boundaries themselves are accura
5307452 Method and apparatus for creating, manipulating and displaying images April 26, 1994
A method and apparatus for creating, manipulating and displaying images. This invention permits a user to manipulate a high resolution source image through interaction with a lower resolution display image. User operations are interpreted by a paint system processor and executed on the s
5239624 Pseudo-random point sampling techniques in computer graphics August 24, 1993
A computer database contains visual and other information of an object scene from which a television monitor or film display is created by electronically sampling points of the object scene information in the computer memory. Undesirable effects of aliasing are significantly reduced
5194969 Method for borderless mapping of texture images March 16, 1993
A method of transformation of any random sample of a surface texture pattern into a replicatable unit for computer graphics applications that can join together without borders to cover any desired surface area. The present invention is particularly well suited for obtaining texture p
5175808 Method and apparatus for non-affine image warping December 29, 1992
A method and apparatus for two-pass image transformation, providing a general solution to execute arbitrary warping of an image. A bicubic mesh is created, by splines or other suitable means, and is used to create displacement tables for X and Y displacement. Alternatively, the displ
5025400 Pseudo-random point sampling techniques in computer graphics June 18, 1991
A computer database contains visual and other information of an object scene from which a television monitor or film display is created by electronically sampling points of the object scene information in the computer memory. Undesirable effects of aliasing are significantly reduced
4897806 Pseudo-random point sampling techniques in computer graphics January 30, 1990
A computer database contains visual and other information of an object scene from which a television monitor or film display is created by electronically sampling points of the object scene information in the computer memory. Undesirable effects of aliasing are significantly reduced
4845666 Computer system for processing binary numbering format and determining the sign of the numbers f July 4, 1989
A computer binary numbering system which allows for over range values and determines the sign of the numbers from their two most significant bits. The technique has a particular advantage in computer graphics systems.
4835712 Methods and apparatus for imaging volume data with shading May 30, 1989
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 calculating the change in opacity across that voxel in relation to its immediate neighbors. The g
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