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:
Oct. 04, 2011
Filed:
Sep. 07, 2004
Jeffrey T. Kiel, Raleigh, NC (US);
Jeffrey T. Kiel, Raleigh, NC (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
Methods and apparatuses for selecting appropriate anisotropic filtering levels for images. An image is obtained, that image is Fourier transformed into its frequency components, and then those frequency components are normalized. The Fourier transformed into its frequency components are assigned to Fourier buckets (or bins) having dimensions selected in accord with the number of available anisotropic filtering levels. A predetermined threshold value is used to select one of the Fourier buckets by comparing the predetermined threshold value with the contents of the Fourier buckets. The selected Fourier bucket is used to determine an appropriate anisotropic filtering level for the image. Some embodiments of the present invention can provide for an automatic selection and setting of the appropriate anisotropic filtering level.
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