Apparatus and method for reproducing digitized video pictures, with inclined plane error restoration
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United States of America Patent
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-
Jan 30, 1990
Grant Date -
N/A
app pub date -
Jul 20, 1988
filing date -
Jun 6, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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 correction 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 the 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.
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Cited Art Landscape
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