Method for magnifying and reducing an image

Details Method for magnifying and reducing an image Method for magnifying and reducing an image

1991-08-01

1994-02-01

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Sweep expansion or reduction

348240, 348910, H04N 3223

Patent

active

052836517

ABSTRACT:
A video signal processing method for use in magnifying and reducing an image by interpolating a scanning line within a field when an interlaced original video signal is magnified or reduced by a factor of m
(m, n are natural numbers), wherein origins of an odd field and an even field for magnifying or reducing processing are offset so as to be equally distanced from adjacent scanning lines within the odd field and the even field, whereby the origins of the odd and even fields for magnifying and reducing processing are set at a common position, and the local filter characteristic is made equal in the odd and even fields, thereby removing a line flicker in an image after the magnifying and reducing processing has been performed and a flicker caused by the vertical resolution differing from one field to another.

REFERENCES:
patent: 4610026 (1986-09-01), Tabata et al.
patent: 4792856 (1988-12-01), Shiratsuchi
patent: 4951125 (1990-08-01), Kojima et al.
patent: 5029001 (1991-07-01), Tanaka et al.
patent: 5089893 (1992-02-01), Iwase
patent: 5124804 (1992-06-01), Socarras
patent: 5136398 (1992-08-01), Rodriguez-Cavazos et al.

Affiliated with

Also associated with

Rating

Method for magnifying and reducing an image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for magnifying and reducing an image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for magnifying and reducing an image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-583326