Patent Document ID: 7567619
Application ID: 11191220
Patent Status: 1

Claim One:
1. A method for deblocking a video, comprising: ascertaining block boundaries of an image unit; ascertaining a Group of Pictures Position Number (GPN) of the image unit in a group of pictures; smoothing one or more discontinuities of the image unit responsive to individual locations of the one or more discontinuities relative to the block boundaries of the image unit; and smoothing one or more discontinuities of the image unit responsive to the GPN of the image unit in the group of pictures, by filtering the image unit, wherein an impact of a filtering is reduced as the GPN increases, wherein the smoothing one or more discontinuities of the image unit responsive to a position of the image unit in the group of pictures comprises smoothing the one or more discontinuities by applying a filter comprising G σ ⁡ [ α , n ] = K · 1 2 ⁢ ⁢ π ⁢ ⁢ ⅇ - 1 2 ⁢ ⁢ ( α ⁢ ⁢ σ ) 2 ⁢ ⁢ n 2 wherein n represents the GPN, α is a temporal filtering coefficient and decreases in value as n increases, K is a number chosen to normalize an energy in the filter, and σ is a chosen standard deviation value.