Image analysis – Histogram processing
Reexamination Certificate
2007-07-17
2007-07-17
Alavi, Amir (Department: 2624)
Image analysis
Histogram processing
Reexamination Certificate
active
10458196
ABSTRACT:
The invention provides an image processing method, an image processing apparatus, and a projector which determine a scene-change so as to perform an optimal tone conversion, luminance correction, or the like, for each scene of a moving image. An image processing apparatus includes a normalized-luminance-histogram computing unit to compute a normalized luminance histogram for each frame, histogram buffers to store normalized luminance histograms of respective comparing frames, a scene-change-detecting reference-value computing unit to compute scene-change-detecting reference values α and β corresponding to correlations between two normalized luminance histograms of the first and second frames respectively stored in the histogram buffers, and a scene-change determining unit to determine whether a change in scenes between images of the first and second frames has occurred or not, in accordance with the scene-change-detecting reference values α and β.
REFERENCES:
patent: 5359369 (1994-10-01), Izawa et al.
patent: 6741295 (2004-05-01), Nieuwenhuizen et al.
patent: 7079157 (2006-07-01), Deering
patent: 2003/0034974 (2003-02-01), Welch et al.
patent: 2003/0052890 (2003-03-01), Raskar et al.
patent: A-6-6820 (1994-01-01), None
patent: A-7-59108 (1995-03-01), None
patent: A-B2-7-99862 (1995-10-01), None
patent: A-8-56316 (1996-02-01), None
patent: A 08-139995 (1996-05-01), None
patent: A-8-331504 (1996-12-01), None
patent: A 10-224741 (1998-08-01), None
LandOfFree
Image processing method and image processing 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 Image processing method and image processing apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing method and image processing apparatus... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3733429