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:
Apr. 19, 2016
Filed:
Aug. 09, 2012
Reed P. Tidwell, Centerville, UT (US);
Reed P. Tidwell, Centerville, UT (US);
XILINX, INC., San Jose, CA (US);
Abstract
In an apparatus for digital image processing, a mapper is coupled to receive destination pixel information in terms of a source pixel space, and to provide a 2-dimensional filter kernel with source pixels for the destination pixel information. An oversampled filter includes predetermined coefficients. A filter coefficient module is configured to select phase coefficients from the predetermined coefficients stored in the oversampled filter based on proximity to the source pixels in the filter kernel, and coupled to provide a filter coefficient for each of the source pixels in the filter kernel. A convolution module is coupled to receive the source pixels and the filter coefficients, and to provide a convolution result. The convolution module is configured to apply the filter coefficients to the source pixels in a convolution to provide the convolution result. A normalization module is configured to normalize either the convolution result or the filter coefficients.