The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 1997
Filed:
Jul. 21, 1994
Applicant:
Inventors:
Edward C Greene, Palo Alto, CA (US);
Michael H Kass, Palo Alto, CA (US);
Assignee:
Apple Computer, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T / ; G06T / ;
U.S. Cl.
CPC ...
395120 ; 395121 ; 395122 ; 395131 ;
Abstract
An antialiased rendering algorithm that guarantees that each pixel of the output image is within a user-specified error tolerance of the filtered underlying continuous image wherein an object-space octree is used to cull hidden geometry rapidly, and a quadtree data structure is used to test visibility through image-space regions. When regions are too complex, quadtree subdivision is employed to simplify the geometry. Subdivision stops when the algorithm can either analytically filter the required region or bound the convolution integral appropriately with interval methods.