Patent ID: 8295367
Filing Date: 2012-10-23
Classification: H04N

Abstract:
1. A method of processing a video signal, comprising acts of: detecting a potential block boundary between a first block and a second block of a frame of the video signal, wherein the frame, the first block, and the second block each includes a plurality of pixels; determining an offset parameter corresponding to at least one pixel of at least one of the first block and the second block; determining, based on the offset parameter, a boundary verification value of at least one of the first block and the second block; determining, based on the boundary verification value, if the potential block boundary includes a block boundary artifact; and filtering a component value of a pixel that forms part of the block boundary artifact in response to determining that the potential block boundary includes the block boundary artifact, wherein the act of filtering includes computing an adjusted component value of the pixel based on a function of the component value of the pixel, a filtered component value of the pixel and the boundary verification value.