Television scan line doubler including temporal median filter
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United States of America Patent
Stats
-
Jan 29, 1991
Grant Date -
N/A
app pub date -
Apr 5, 1989
filing date -
Apr 5, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video pixel interpolator generates interpolation pixels from incoming picture image pixels for use within a television picture scan line doubler system. The interpolator includes a temporal median filter for generating an interpolation pixel by selection of the median one of a plurality of temporal pixel samples derived from incoming video, an intra-field averager means for generating an intra-field pixel average, and a switch connected to switch an input to a line doubler of the system between outputs of the temporal median filter and the intra-field averager in response to detection of pixel motion within the picture image. Improved motion detection, and multi-channel processing are also included within the present invention.
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Cited Art Landscape
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