Vorrichtung zum Wiedergeben von digitalisierten Bildern mittels einer Fehlerwiederherstellung mit einer geneigten Ebene.

摘要

A device for reproducing digitally presented video pictures includes a restoration circuit for restoring erroneous picture elements. To this end a reference sub-picture is composed of erroneous and correct picture elements, the erroneous picture elements being entirely enclosed by the correct picture elements. Before restoring the erroneous picture elements, a correction function is determined, starting from the correct picture elements of the reference sub-picture, and by means of this corection function a correction value can be determined for each correct picture element in the reference sub-picture such that the difference picture elements obtained by subtracting tne associated correction value from each correct picture element represent a signal whose mean value is zero. A known method of restoring erroneous picture elements can now be used for these difference picture elements.