Variable-size spatial and temporal video scaler

Details Variable-size spatial and temporal video scaler Variable-size spatial and temporal video scaler

1997-10-28

2000-08-22

Hsia, Sherrie

Television

Image signal processing circuitry specific to television

Special effects

348448, H04N 701

Patent

active

061080470

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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patent: 5621870 (1997-04-01), Shyu et al.
patent: 5671018 (1997-09-01), Ohara
patent: 5742343 (1998-04-01), Haskell
patent: 5793435 (1998-08-01), Ward

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