Process for interpolating progressive frames

Details Process for interpolating progressive frames Process for interpolating progressive frames

1996-12-10

1999-11-30

Peng, John K.

Television

Format conversion

Line doublers type

348448, 348449, 348450, 348451, H04N 701

Patent

active

059951540

ABSTRACT:
A process for converting interlaced frames into progressive frames comprising a change of frame frequency by interpolation and motion compensation, wherein when a motion vector associated with a pixel to be interpolated is non-zero or when the motion vector is zero but the confidence accorded to this vector is less than a given threshold, the interpolation of the pixel of a frame situated temporally between two input frames is carried out by a median filtering pertaining to the values obtained by a first motion compensated linear temporal filter, a second motion compensated linear filter, and a motion compensated median temporal filter.

REFERENCES:
patent: 5208667 (1993-05-01), Saunders
patent: 5488421 (1996-01-01), Hwang et al.
patent: 5495300 (1996-02-01), De Haan et al.
patent: 5504531 (1996-04-01), Knee et al.
patent: 5534946 (1996-07-01), De Haan et al.
patent: 5592231 (1997-01-01), Clatanoff et al.
patent: 5631706 (1997-05-01), Tsunashima
patent: 5784114 (1998-07-01), Borer et al.
"Scan Rate Up-Conversions Using Adaptive Weighted Median Filtering", Haavisto, P. et al., Signal Processing of HDTV, pp. 703-710.

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