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:
May. 20, 2014
Filed:
Mar. 12, 2013
Divx, Llc, Santa Clara, CA (US);
Martin Schink, Aachen, DE;
Sonic IP, Inc., Santa Clara, CA (US);
Abstract
Systems and methods for region of interest background smoothing & compression enhancement in accordance with embodiments of the invention are disclosed. In one embodiment, preprocessing video with a smoothing filter includes identifying a region of interest in a frame of video, determining an importance value for the region of interest, when the importance value satisfies a criterion, applying an intra frame smoothing filter to pixels within the region of interest, which includes dividing the specified region of interest into pairs of pixel groupings, where the pixel groupings in each pair are the same size and are adjacent to each other, calculating the difference between the average luminance of the pixels within each pixel grouping, when the calculated difference is less than a predetermined amount: calculating the average luminance for all pixels in the pixel groupings, and assigning the calculated average luminance to all pixels within the pixel groupings.