Television – Format conversion – Line doublers type
Patent
1996-12-06
1998-08-18
Lee, Michael H.
Television
Format conversion
Line doublers type
348448, H04N 701, H04N 1120
Patent
active
057964378
ABSTRACT:
A progressive scanning conversion apparatus for converting an interlaced scan video signal into a progressive scan video signal by performing interpolation based on original pixels which are obtained in a matrix by sampling the interlaced scan video signal in a current field, original pixels which are obtained in a matrix by sampling the interlaced scan video signal in a previous field which is immediately prior to the current field, and original pixels which are obtained in a matrix by sampling the interlaced scan video signal in a next field which is immediately following the current field. The apparatus includes a motion vector detector for detecting a motion vector between two of the current field, the previous field, and the next field; a motion estimation circuit for estimating a pixel value in the current field, from one of a pixel in the previous field and a pixel in the next field using the motion vector detected by the vector detection means; and an interpolated pixel generator for generating an interpolated pixel used for conversion by multiplying the pixel value obtained by the motion estimation means and the corresponding pixel value in the current field by a weighting factor and summating the multiplication results.
REFERENCES:
patent: 4731648 (1988-03-01), Bernard et al.
patent: 4862266 (1989-08-01), Gillard
patent: 4985764 (1991-01-01), Sato
patent: 5093721 (1992-03-01), Rabii
patent: 5410356 (1995-04-01), Kikuchi et al.
patent: 5475438 (1995-12-01), Bretl
patent: 5488422 (1996-01-01), Faroudja et al.
patent: 5495300 (1996-02-01), de Haan et al.
patent: 5532751 (1996-07-01), Lui
Hirotsune Satoshi
Kotaka Mitsuru
Kuzumoto Keiichi
Muraji Tsutomu
Lee Michael H.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Progressive scanning conversion apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Progressive scanning conversion apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Progressive scanning conversion apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1119288