Progressive scanning conversion apparatus

Television – Format conversion – Line doublers type

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFUS-PAI-O-1119288

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.