Multi-dimensional video filters

Details Multi-dimensional video filters Multi-dimensional video filters

1998-02-12

2000-06-13

Powell, Mark R.

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

348617, 348620, 348622, 348630, 348701, H04N 5213

Patent

active

060755725

ABSTRACT:
An S/N ratio is improved and flicker noises and mosquito noises are suppressed while deterioration of a resolution is suppressed. A three-dimensional cyclical digital filter (16) is interposed between a MPEG video decoder (12) and a video DAC. In accordance with a luminance input signal Yu from the MPEG video decoder (12), Yv is calculated from the following equation.

REFERENCES:
patent: 4551753 (1985-11-01), Nishizawa
patent: 4833543 (1989-05-01), Verbiest
patent: 4987489 (1991-01-01), Hurley
patent: 5305095 (1994-04-01), Song
patent: 5473389 (1995-12-01), Eto
patent: 5493513 (1996-02-01), Keith et al.
patent: 5512956 (1996-04-01), Yan
patent: 5592231 (1997-01-01), Clatanoff
patent: 5835630 (1998-11-01), Schweid
Yongyi Yang et al., Regularized Reconstruction to Reduce Blocking Artifacts of Block Discrete Cosine Transform Compressed Images, IEEE Transactions on Circuit and Systems for Video Technology, vol. 3, No. 6., Dec. 1, 1993, pp. 421-432.
International Search Report (dated Jun. 16, 1999).

Affiliated with

Also associated with

Rating

Multi-dimensional video filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-dimensional video filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-dimensional video filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2073412