Computer graphics processing and selective visual display system – Computer graphics processing – Adjusting level of detail
Patent
1996-01-17
1999-02-16
Zimmerman, Mark K.
Computer graphics processing and selective visual display system
Computer graphics processing
Adjusting level of detail
G06T 1100
Patent
active
058725725
ABSTRACT:
A view of a three dimensional scene is generated by organizing the view into successive co-centric subsets. For each subset of the view, image data for the subset is generated by rendering the primitives that form the three dimensional scene, whereby the resolution of the image data representing the subsets is varied amongst the subsets. The non-uniform resolution image data representing the subsets of the view is stored in memory. The non-uniform resolution image data is expanded to construct pixel data that represents a non-uniform resolution view of the three dimensional scene. The rendering operation is parallelized by performing a rasterization operation concurrent with a scaling and clipping operation. The rasterization operation rasterizes data defining a given primitive to generate image data that represents contribution of the given primitive to a particular subset of the view. The scaling operation scales data defining the given primitive. The clipping operation clips the scaled data against a clipping volume that corresponds to a subset of the view that is different from the subset of the view utilized by the concurrent rasterization operation. The clipped data is then used in a subsequent rendering operation.
REFERENCES:
patent: 4494144 (1985-01-01), Brown
patent: 4598372 (1986-07-01), McRoberts
patent: 4633296 (1986-12-01), Cham et al.
patent: 4650929 (1987-03-01), Boerger et al.
patent: 4651206 (1987-03-01), Ohki
patent: 4656511 (1987-04-01), Koga
patent: 4663660 (1987-05-01), Fedele et al.
patent: 4686698 (1987-08-01), Tompkins et al.
patent: 4695883 (1987-09-01), Chandler et al.
patent: 4703350 (1987-10-01), Hinman
patent: 4710917 (1987-12-01), Tompkins et al.
patent: 4717956 (1988-01-01), Moorhead et al.
patent: 4935953 (1990-06-01), Appel et al.
patent: 5065346 (1991-11-01), Kawai et al.
patent: 5179639 (1993-01-01), Taaffe
patent: 5239625 (1993-08-01), Bogart et al.
patent: 5263136 (1993-11-01), DeAguiar et al.
patent: 5320534 (1994-06-01), Thomas
patent: 5414469 (1995-05-01), Gonzales et al.
patent: 5448686 (1995-09-01), Borrel et al.
patent: 5621429 (1997-04-01), Yamaashi et al.
L. Williams, "Pyramidal Parametrics", Computer Graphics Jul. 1983 V17 #3 pp. 1-11.
Foley et al, "Image Manipulation and Storage", Computer Graphics Principles and Practice 2nd Ed. Addison-Wesley Publ. Co. pp. 815-826.
International Business Machines - Corporation
Sbrollini Jay P.
Zimmerman Mark K.
LandOfFree
Method and apparatus for generating non-uniform resolution image 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 generating non-uniform resolution image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for generating non-uniform resolution image will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2066402