Variable-size spatial and temporal video scaler
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United States of America Patent
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Aug 22, 2000
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N/A
app pub date -
Oct 28, 1997
filing date -
Oct 28, 1997
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Abstract
Digital video signal processor scales in spatial and temporal domains. Linear, time-varying filter provides variable-size scaling of progressive and interlace-scan formats. Temporally, frame-rate conversion is accomplished using motion compensation. Vertical line-doubling and de-interlacing is achieved with line-based motion estimation. Bilinear interpolation provides low filtering distortion; other linear and spline functions are implemented using equivalent control functionality and arithmetic datapaths.
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