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. 02, 2019
Filed:
Jul. 29, 2016
Imagination Technologies Limited, Kings Langley, GB;
Szabolcs Cséfalvay, Hemel Hempstead, GB;
Imagination Technologies Limited, Kings Langley, GB;
Abstract
A pixel filter receives a sequence of pixels, each pixel having an associated pixel value. A first recursive filter operation is performed in a first direction through the sequence of pixels to form a first filtered pixel value for each pixel, and a second recursive filter operation is performed in a second direction through the sequence of pixels to form a second filtered pixel value for each pixel. The first and second filtered pixel values for a given pixel are determined in dependence on the pixel value at that pixel and the filtered pixel value preceding that pixel in their respective direction of operation, the filtered pixel value of the preceding pixel being scaled by a measure of similarity between data associated with that pixel and its preceding pixel. For each pixel of the sequence, the first and second filtered pixel values are combined to generate a filter output for the pixel.