Robust de-interlacing of video signals

Abstract of corresponding document: WO 2005025214 (A1) The invention relates to a method for de-interlacing a video signal with interpolating (24) a first pixel sample from a first set of pixels and a second set of pixels, interpolating (26) a second pixel sample from said first set of pixels and a third set of pixels, calculating (28) a third pixel sample from a pixel of said first set of pixels, and calculating (30) a relation between said first pixel sample and said second pixel sample. To improve interpolation and thus image quality, it is proposed to calculate an output pixel sample based on said first pixel sample, said second pixel sample, said third pixel sample and said relation between said first pixel sample and said second pixel sample. EP 1665781 (B1) WO 2005025214 (A1) US 2007052843 (A1) KR 20060084848 (A) JP 2007504742 (A)