Television – Image signal processing circuitry specific to television – Combined noise reduction and transition sharpening
Reexamination Certificate
2007-01-09
2007-01-09
Kostak, Victor R. (Department: 2622)
Television
Image signal processing circuitry specific to television
Combined noise reduction and transition sharpening
C348S625000, C375S240290, C382S275000
Reexamination Certificate
active
09976329
ABSTRACT:
An apparatus and method for enhancing the quality of a digital video signal uses coding information for use in connection with spatial domain sharpness enhancement algorithms used in multimedia devices. The sharpness of previously encoded or transcoded digital video images is enhanced without enhancing encoding artifacts. The apparatus includes a usefulness metric generator that identifies a limit to the sharpness enhancement of an image that can be applied to a previously coded digital video that represents a sequence of images without enhancing coding artifacts. The usefulness metric generator applies the usefulness metric to at least one sharpness enhancement algorithm. The usefulness metric and the sharpness enhancement algorithm are separate so that the usefulness metric can be used with a variety of video enhancement algorithms.
REFERENCES:
patent: 5031042 (1991-07-01), Rabii
patent: 5491514 (1996-02-01), Fukuda et al.
patent: 5977964 (1999-11-01), Williams et al.
patent: 6037986 (2000-03-01), Zhang et al.
patent: 6115503 (2000-09-01), Kaup
patent: 6137904 (2000-10-01), Lubin et al.
patent: 6192083 (2001-02-01), Linzer et al.
patent: 6466624 (2002-10-01), Fogg
patent: 6466625 (2002-10-01), Kobayashi et al.
patent: 6600839 (2003-07-01), Mancuso et al.
patent: 6611295 (2003-08-01), Drouot et al.
patent: 6636645 (2003-10-01), Yu et al.
patent: 6810082 (2004-10-01), Shen et al.
patent: 6847738 (2005-01-01), Scognamiglio et al.
patent: 6950561 (2005-09-01), Boroczky et al.
patent: 0042778 (2000-07-01), None
patent: 0145389 (2001-06-01), None
“A Compressed Video Enhancement Algorithm”, by Chun-Jen Tsai et al., Proceedings of IEEE ICIP 1999, Kobe Japan, Oct. 25-28, 1999.
“Improved Decoding of MPEG-2 Coded Video”, by B. Martins et al., Proceedings of IBC '2000, Amsterdam, The Netherlands, Sep. 7-12, 2000, pp. 109-115.
“Pre-and Post-Processing Algorithms for Compressed Video Enhancement”, by C. Andrew Segall et al., pp. 1369-1373. XP-001004077.
Boroczky Lilla
Janssen Johan
Koninklijke Philips Electronics , N.V.
Kostak Victor R.
Liberchuk Larry
LandOfFree
Apparatus and method for providing a usefulness metric based... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for providing a usefulness metric based..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for providing a usefulness metric based... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3815810