Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2006-06-20
2006-06-20
Yenke, Brian (Department: 2614)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
C348S623000, C348S180000, C382S261000
Reexamination Certificate
active
07064793
ABSTRACT:
To determine the noise contained in a picture, it is proposed first to determine homogeneous picture regions of the picture (100-102) and then to measure the high-frequency signal component in these homogeneous picture regions (BR). The measurement of the high-frequency signal components is here averaged over many measurement points, i.e. over many homogenous picture regions (BR), and is processed into a noise figure (NOISE_SUM) (103-104). In this way, the quality of the picture can be measured directly in the picture content.
REFERENCES:
patent: 5329311 (1994-07-01), Ward et al.
patent: 5387946 (1995-02-01), Knee
patent: 5418574 (1995-05-01), Miyabata et al.
patent: 5425114 (1995-06-01), Hamasaki et al.
patent: 5635990 (1997-06-01), Yi
patent: 5844627 (1998-12-01), May et al.
patent: 5870502 (1999-02-01), Bonneau et al.
patent: 5969777 (1999-10-01), Mawatari
patent: 6169583 (2001-01-01), Merkl et al.
patent: 6370279 (2002-04-01), Paik
patent: 6377299 (2002-04-01), Hamada
patent: 6496605 (2002-12-01), Osa
patent: 6529637 (2003-03-01), Cooper
patent: 6600839 (2003-07-01), Mancuso et al.
patent: 6633654 (2003-10-01), Hannigan et al.
patent: 6674903 (2004-01-01), Cliquet
patent: 6704437 (2004-03-01), He et al.
patent: 6707940 (2004-03-01), Qian
patent: 6728381 (2004-04-01), Hosoya
patent: 6804408 (2004-10-01), Gallagher et al.
patent: 6839151 (2005-01-01), Andree et al.
patent: 6895121 (2005-05-01), Joshi et al.
patent: 6898329 (2005-05-01), Takahashi
patent: 6928196 (2005-08-01), Bradley et al.
patent: 6973221 (2005-12-01), Xue
patent: 2001/0055421 (2001-12-01), Baatz et al.
patent: 2002/0039441 (2002-04-01), Klassen
patent: 36 17 827 (1987-12-01), None
patent: 43 41 760 (1995-06-01), None
patent: 0562407 (1993-09-01), None
Van Rensburg et al., “The measurement of signal to noise ratio of a television broadcast picture”, IEEE Transactions on Broadcasting, No. 2, pp. 35-43, Jun. 1991.
Hahn Marko
Niedermeier Ulrich
Wendel Dirk
LandOfFree
Method and apparatus for measuring the noise contained in a... 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 and apparatus for measuring the noise contained in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring the noise contained in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3709461