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. 14, 2015
Filed:
Jul. 01, 2009
Brent Burley, Monterey Park, CA (US);
Brent Burley, Monterey Park, CA (US);
Disney Enterprises, Inc., Burbank, CA (US);
Abstract
There is provided a system and method for filter kernel interpolation for seamless mipmap filtering. There is provided a method of implementing a filter kernel interpolation for seamless filtering of transitions within a plurality of mipmaps derived from a base-image texture filtered using a prefilter, the method comprising choosing a filter kernel, determining a filter width for the filter kernel, selecting a first mipmap and a second mipmap from the plurality of mipmaps, applying interpolation on the filter kernel based on the prefilter, the first mipmap, and the second mipmap to generate an interpolated filter kernel, and applying the interpolated filter kernel to the first mipmap to generate a seamless filtered texture. Two alternative methods of interpolation are introduced, including filter kernel value interpolation and filter kernel position interpolation with x-lerping. By avoiding access to the second mipmap, greater efficiency and image quality can be achieved versus conventional interpolation.