Horizontal and vertical transition level enhancement within tele

Details Horizontal and vertical transition level enhancement within tele Horizontal and vertical transition level enhancement within tele

1989-08-25

1991-05-07

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358166, H04N 964

Patent

active

050141198

ABSTRACT:
A television signal processing system includes a source of video images for providing luminance and chrominance components of the video images by generating and putting out scan lines. The source includes a low level horizontal domain detail processor connected for boosting low level horizontal transitions of the luminance component put out by the source below a predetermined threshold level. The system typically includes a signal-degrading path such as one characteristic of transmission or recording. The signal is passed through the degrading path to a display unit. A line doubler is preferably, although not necessarily, included in the display unit for doubling the number of decoded scan lines of the signal and for putting out scan line doubled luminance and chrominance components. A display image processor is connected to the line doubler and provides horizontal domain transition high level enhancement for enhancing horizontal domain transitions having amplitudes above the predetermined threshold level. The display image processor further preferably includes vertical enhancement for enhancing vertical domain transitions in accordance with predetermined vertical domain enhancement criteria, such as low level vertical detail boost and vertical contouring.

REFERENCES:
patent: 4030121 (1977-06-01), Faroudja
patent: 4262304 (1981-04-01), Faroudja
patent: 4263616 (1981-04-01), Lee
patent: 4459613 (1984-07-01), Faroudja
patent: 4623913 (1986-11-01), Fling et al.
patent: 4639763 (1987-01-01), Willis et al.
patent: 4663653 (1987-05-01), Patel

Affiliated with

Also associated with

Rating

Horizontal and vertical transition level enhancement within tele does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Horizontal and vertical transition level enhancement within tele, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Horizontal and vertical transition level enhancement within tele will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-943478