Interlaced-to-sequential scan conversion

Details Interlaced-to-sequential scan conversion Interlaced-to-sequential scan conversion

1995-04-03

1996-07-02

Kostak, Victor R.

Television

Format conversion

Line doublers type

H04N 701

Patent

active

055327508

ABSTRACT:
In a method of converting an interlaced video signal (IS) into an output sequentially scanned video signal (SSS), a first sequentially scanned video signal (SS1) is furnished in dependence upon the interlaced video signal (IS). Subsequently, a motion-compensated sequentially scanned signal (MCS) is furnished in dependence upon the first sequentially scanned video signal (SS1). All video lines of the output sequentially scanned video signal (SSS) are furnished in dependence upon both the first sequentially scanned video signal (SS1) and the motion-compensated sequentially scanned signal (MCS) to prevent inaccuracies in motion vectors used in the motion-compensated processing operation (5-9) from resulting in visible distortions.

REFERENCES:
patent: 5001563 (1991-03-01), Doyle et al.
patent: 5005078 (1991-04-01), Gillard
patent: 5208667 (1993-05-01), Saunders
patent: 5280350 (1994-01-01), De Haan et al.
PHN 14,079 corresponding to EPA 0,574,068, Ser. No. 08/073,403.
"Time-Recursive Deinterlacing for IDTV and Pyramic Coding" by Feng-Ming Wang and Dimitris Anastassiou, Signal Processing: Image Communication 2(1990) pp. 365-374.

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