Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2006-09-21
2010-11-02
Kim, Charles (Department: 2624)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
Reexamination Certificate
active
07826680
ABSTRACT:
The invention provides for calculating the sum of the luminance values of all pixels in each of a number of regions making up the whole image. A histogram is then created of all the sums of luminance at the end of each frame. The histogram is then rescaled such that the luminance range is normalized. Once the histogram has been created, an appropriate transfer function is created using the integrated luminance histogram for the frame. In this way detail within significant objects in the image are enhanced since the average luminance of objects in an image are weighted more than then the luminance of individual pixels providing a more realistic transfer function.
REFERENCES:
patent: 5546474 (1996-08-01), Zuniga
patent: 5742704 (1998-04-01), Suzuki et al.
patent: 5847773 (1998-12-01), Lagoni et al.
patent: 6393148 (2002-05-01), Bhaskar
patent: 7469160 (2008-12-01), Banks et al.
patent: 2004/0161152 (2004-08-01), Marconi et al.
patent: 2005/0002566 (2005-01-01), Di Federico et al.
patent: 2005/0163372 (2005-07-01), Kida et al.
patent: 2005/0190980 (2005-09-01), Bright
patent: 2006/0239581 (2006-10-01), Neuman
patent: 2007/0071334 (2007-03-01), Sakaue
patent: 0 613 294 (1994-08-01), None
patent: 0957631 (1999-11-01), None
patent: 1 333 665 (2003-08-01), None
patent: 1 560 417 (2005-08-01), None
patent: 2 418 316 (2006-03-01), None
patent: 9533337 (1995-12-01), None
patent: 0063838 (2000-10-01), None
patent: 0141117 (2001-06-01), None
European Search Report dated Sep. 25, 2007 in EP Application No. 07252589.2.
European Search Report dated Jan. 14, 2008 in EP Application No. 07252590.0.
Partial Search Report dated Oct. 18, 2007 in Application No. 07252590.0.
Dimitrova et al., “On Selecting Video Content Analysis and Filtering”, Proceedings of the SPIE, SPIE, vol. 3972, Jan. 26, 2000, pp. 359-368.
Goh, K. H. et al., “Automatic Video Contrast Enhancement”, Consumer Electronics, 2004 IEEE International Symposium on Reading, UK, Sep. 1-3, 2004, pp. 359-364.
Search Report and Written Opinion dated Nov. 17, 2008 in Singapore Patent Application No. 0704764-0.
European Search Report dated Jan. 7, 2009 in EP Application No. 07252588.4.
European Search Report dated Jan. 7, 2009 in EP Application No. 07252587.6.
Beyer Law Group LLP
Genesis Microchip Inc.
Jorgenson Lisa K.
Kim Charles
Patel Nirav G
LandOfFree
Integrated histogram auto adaptive contrast control (ACC) does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated histogram auto adaptive contrast control (ACC), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated histogram auto adaptive contrast control (ACC) will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4216395