Patent ID: 7394855
Filing Date: 2008-07-01
Classification: H04N

Abstract:
1. A method for concealing errors in an intra-frame of a compressed video, comprising: decoding the intra-frame to a plurality of macroblocks, each macroblock including a plurality of pixels arranged in a rectangular array; locating a lost macroblock during the decoding; concealing pixels along an outer boundary of the lost macroblock from nearest candidate pixels along outer boundaries of macroblocks immediately adjacent to the lost macroblock; and concealing all other pixels in the lost macroblock from nearest candidate pixels selected from previously concealed pixels in the lost macroblock; and further comprising: sorting the candidate pixels C determining a median value of the ordered candidate pixels; determining a difference Diff determining a distance Dist determining an evaluation score S if the evaluation score S linearly interpolating remaining candidate pixels and assigning an interpolated value to the current pixel p according to