Motion-compensated field rate conversion

Details Motion-compensated field rate conversion Motion-compensated field rate conversion

1996-04-03

1999-07-27

Lee, Richard

Television

Format conversion

Line doublers type

348699, H04N 701

Patent

active

059299193

ABSTRACT:
In a method of processing input fields (I) of a picture signal to obtain interpolated fields (O) located temporally between the input fields (I), motion vectors (MV) are provided (30) between input fields (I), whereafter a quality (Err) of the motion vectors (MV) is assessed (40). In dependence upon the assessed quality (Err), the motion vectors (MV) are adapted (50, 60) such that both decreased and increased motion vector lengths occur in respective interpolated fields (O). The interpolated fields (O) are obtained (20) from the input fields (I) in dependence upon the thus adapted motion vectors (k*MV).

REFERENCES:
patent: 4612567 (1986-09-01), Prichard
patent: 4635114 (1987-01-01), Wendland et al.
patent: 5036393 (1991-07-01), Samad et al.
patent: 5208667 (1993-05-01), Saunders
patent: 5268751 (1993-12-01), Geiger et al.
patent: 5396298 (1995-03-01), Hosokawa et al.
patent: 5446497 (1995-08-01), Keating et al.
patent: 5495300 (1996-02-01), De Haan et al.
patent: 5532750 (1996-07-01), De Haan et al.
patent: 5534946 (1996-07-01), De Haan et al.
patent: 5619273 (1997-04-01), Sugiyama

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