Method of processing video signals which are sampled according to a sampling pattern having at least one omitted element which differs from picture frame to picture frame and a video signal converter for putting this method into effect

摘要

A method of processing video signals which are sampled according to a sampling network which differs from picture to picture and a video signal converter for putting this method into effect.P PA video signal converter for putting into effect a method of processing a video signal which has been sampled according to a sampling pattern which differs from picture to picture. This converter includes:P P(a) a spatial filtering circuit which is an interpolation circuit (30);PP(b) a selection circuit having a first memory (10) which delays the input signal by the duration of a picture, a second memory (20) for delaying the output of the first memory by the duration of a picture, first and second delay circuits (40 and 50), and a sorting circuit (60) which receives at its three inputs the output signal of the second delay circuit, the output signal of the interpolation circuit, and the output signal of the first delay circuit, respectively; andP P(c) a final picture recovery circuit, having a third delay circuit (70) and a multiplexing circuit (80).