Method and apparatus for improving video quality

Details Method and apparatus for improving video quality Method and apparatus for improving video quality

2005-05-10

2005-05-10

Kostak, Victor R. (Department: 2614)

Television

Format conversion

Line doublers type

C348S700000, C348S459000

Reexamination Certificate

active

06891571

ABSTRACT:
Disclosed is a video restoring apparatus and method thereof enabling to improve a video mode by interpolating field data. The present invention includes the steps of: identifying whether a scene on an image sequence is changed by receiving field data; detecting whether a 3:2 pull-down mode exists in the image sequence; generating a first interpolated frame by interleaving a field to be interpolated and adjacent fields each other when there is the 3:2 pull-down mode; generating a second interpolated frame by de-interlacing the field to be interpolated and the adjacent fields each other when there is not the 3:2 pull-down mode, and selectively outputting one of the first and second interpolated frames.

REFERENCES:
patent: 5461420 (1995-10-01), Yonemitsu et al.
patent: 5596371 (1997-01-01), Pakhchyan et al.
patent: 5689301 (1997-11-01), Christopher et al.
patent: 6008848 (1999-12-01), Tiwari et al.
patent: 6055018 (2000-04-01), Swan
patent: 6222589 (2001-04-01), Faroudja et al.

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