Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2007-12-04
2007-12-04
Vo, Tung (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
10620350
ABSTRACT:
A matching section performs motion estimation upon a predetermined processing unit of input video (p) by, e.g., an iterative gradient method. A motion vector (v) obtained by the iterative gradient method is obtained by the expression v=α·Δv+v0(wherein v0indicates an initial displacement motion vector and Δv indicates a differential vector). A characteristic amount extraction section extracts a characteristic amount from the distribution of motion vectors obtained by the motion estimation. A parameter determination section determines a conversion parameter α applied to the next processing unit by the characteristic amount. If the characteristic amount is equal to or larger than a predetermined threshold, the conversion parameter α is determined to be larger (e.g., α=1). If the characteristic amount is smaller than the threshold, the conversion parameter α is determined to be smaller (e.g., α=0.1).
REFERENCES:
patent: 5767898 (1998-06-01), Urano et al.
patent: 5838828 (1998-11-01), Mizuki et al.
patent: 6430224 (2002-08-01), Naito et al.
patent: 7054479 (2006-05-01), Aucsmith et al.
patent: 7-336691 (1995-12-01), None
patent: 8-018978 (1996-01-01), None
patent: 2000-076449 (2000-03-01), None
Office Action dated Jan. 17, 2007 issued in corresponding Japanese Application No. 2002-226055.
R. Kawada et al., “Improvement in Motion-compensated TV Standards Conversion” The Journal of the Institute of Image Information and Television Engineers, vol. 51, No. 9 (1997), pp. 1577-1586 (English Abstract, see page 1 & 10 in the spec.).
“Image Processing Handbook” edited by Morio Onoe, Shokodo, pp. 392-397 (No English Translation, see p. 395 in the article and the p. 9 in the spec.), Feb. 24, 1988.
Kawada Ryoichi
Koike Atsushi
Sugimoto Osamu
Wada Masahiro
KDDI Corporation
Vo Tung
Westerman, Hattori, Daniels & Adrian , LLP.
LandOfFree
Image matching device and method for motion pictures does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image matching device and method for motion pictures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image matching device and method for motion pictures will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3827127