Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation
Reexamination Certificate
2007-03-13
2007-03-13
Brier, Jeffery (Department: 2672)
Computer graphics processing and selective visual display system
Computer graphics processing
Graphic manipulation
Reexamination Certificate
active
09524698
ABSTRACT:
A method of creating an image utilizing a table of levels known as a “level activation table” (34) is disclosed. The method uses the level activation table to optimally evaluate a given compositing expression such that the number of pixel operations needed to evaluate the expression is minimized. The method determines the smallest regions in which compositing operations need to be performed and uses these regions to produce the level activation tables where clipping is applied to operations in order to avoid redundant and/or incorrect pixel operations. The method is preferably used in a compositing model in which objects are composited onto a page using a stack machine and an associated compositing stack (38). The stack38may be manipulated using standard stack operations such as push, pull and pop. Instructions for the stack machine are taken from the level activation table34.
REFERENCES:
patent: 5724494 (1998-03-01), Politis
patent: 5745121 (1998-04-01), Politis
patent: 5982381 (1999-11-01), Joshi et al.
patent: 6014147 (2000-01-01), Politis et al.
patent: 6137497 (2000-10-01), Strunk et al.
patent: 6184891 (2001-02-01), Blinn
patent: 6262747 (2001-07-01), Rocheleau et al.
patent: 6421061 (2002-07-01), Sudoh
patent: 6483519 (2002-11-01), Long et al.
patent: 0 809 213 (1997-11-01), None
patent: WO 97/06512 (1997-02-01), None
Compositing digital images Thomas Porter, Tom Duff, Jan. 1984. □□
Visibility sorting and compositing without splitting for image layer decompositions John Snyder, Jed Lengyel , Jul. 1998. □ □
PixelFlow: high-speed rendering using image composition Steven Molnar, John Eyles, John Poulton , Jul. 1992. □□
A montage method: the overlaying of the computer generated images onto a background photograph Eihachiro Nakamae, Koichi Harada, Takao Ishizaki, Tomoyuki Nishita, Aug. 1986. □□
T. Porter, et al., “Compositing Digital Images,” Computer Graphics, vol. 18, No. 3 (Jul., 1984); pp. 253-259.
M. Shantzis, “A Model For Efficient And Flexible Image Computing,” Computer Graphics Proceedings, Annual Conference Series (1994), pp. 147-154.
Amini J.
Brier Jeffery
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
LandOfFree
Method of compiling compositing expressions for optimised... 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 of compiling compositing expressions for optimised..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of compiling compositing expressions for optimised... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3760977