Noise elimination method and noise elimination apparatus

Details Noise elimination method and noise elimination apparatus Noise elimination method and noise elimination apparatus

2005-06-14

2005-06-14

Lefkowitz, Sumati (Department: 2675)

Computer graphics processing and selective visual display system

Display driving control circuitry

C382S260000, C382S264000, C382S275000, C348S231600, C348S241000

Reexamination Certificate

active

06906704

ABSTRACT:
A noise elimination method of the present invention includes the steps of: detecting a zigzag signal in which a differential value between signal levels of two pixels which are adjacent to each other along a horizontal pixel direction or a vertical pixel direction alternately takes a positive value and a negative value (ST2); determining whether or not the zigzag signal forms a stripe pattern (ST3); regarding the zigzag signal as a normal image signal when the zigzag signal is determined as forming a stripe pattern (ST4); regarding the zigzag signal as a noise signal and extracting the same when the zigzag signal is determined as not forming a stripe pattern (ST5); and filtering this noise signal (ST6).

REFERENCES:
patent: 4573070 (1986-02-01), Cooper
patent: 4918633 (1990-04-01), Sullivan
patent: 6567468 (2003-05-01), Kato et al.
patent: 6667766 (2003-12-01), Matsutani et al.
patent: 2002/0191858 (2002-12-01), Sindhu
patent: 2003/0138160 (2003-07-01), Ishikawa

Affiliated with

Also associated with

Rating

Noise elimination method and noise elimination 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 Noise elimination method and noise elimination apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise elimination method and noise elimination apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3519888