Computer graphics processing and selective visual display system – Computer graphic processing system – Plural graphics processors
Patent
1997-06-27
1999-03-09
Tung, Kee M.
Computer graphics processing and selective visual display system
Computer graphic processing system
Plural graphics processors
345427, 345431, 382167, 382276, G06T 160
Patent
active
058807446
ABSTRACT:
A method and apparatus is provided for an efficient way to perform a transformation of vectors, such as color vectors of pixels in a digital image. The transformation involves the sequential operation of a set of input functions, a transformation matrix, and a set of output functions on an input vector to generate an output vector. For a given matrix, a plurality of look-up tables are generated, each look-up table is associated with a vector element and stores words each corresponding to a possible value of the associated vector element. Each word in a look-up table has multiple segments, and each segment represents the product of a matrix element and the result of operation of a respective input function on the possible value of the associated vector element. For a given input vector, the look-up tables are referenced to obtain words corresponding to the values of the input vector elements. The words obtained from the look-up tables are added to produce a resultant word. The resultant word is then parsed into segments, and the segments are passed through respective output functions to derive respective elements of the output vector.
REFERENCES:
patent: 5070413 (1991-12-01), Sullivan et al.
patent: 5432893 (1995-07-01), Blasubramanian et al.
patent: 5568596 (1996-10-01), Cawley
Fast Convolution with Packed Lookup Tables; George Wolberg and Henry Massalin; vol. VIII.3, pp. 447-46.
Microsoft Corporation
Tung Kee M.
LandOfFree
Method and apparatus for vector transformation involving a trans does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for vector transformation involving a trans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for vector transformation involving a trans will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1326000