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:
Jul. 03, 2012
Filed:
Dec. 14, 2006
Christopher J. Migdal, Cupertino, CA (US);
Alexander L. Minkin, Los Altos, CA (US);
Walter E. Donovan, Saratoga, CA (US);
Christopher J. Migdal, Cupertino, CA (US);
Alexander L. Minkin, Los Altos, CA (US);
Walter E. Donovan, Saratoga, CA (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
One embodiment of the present invention sets forth a technique for transitioning from bilinear sampling to filter-4 sampling, while avoiding the visual artifacts along the boundary between the two different types of filters. The technique may be implemented using a linear transition function or an arbitrary transition function stored in a lookup table. The transition to filter-4 sampling occurs when the view of a textured object includes both minified and magnified levels of texture detail. Using this technique, high image quality is maintained for texture mapped images that include both highly minified pixels as well as highly magnified pixels, without suffering the performance penalty associated with using a filtering operation such as filter-4 sampling across all pixels.