Method and apparatus providing imager noise reduction using...

Television – Camera – system and detail – Combined image signal generator and general image signal...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C348S243000, C348S246000

Reexamination Certificate

active

07830423

ABSTRACT:
Noise correction values are generated through the calculation of pixel offset values and average pixel output values during a calibration procedure. For each read calibration row, an average pixel output value is determined for a plurality of pixel output values. An offset value for each of the plurality of pixel outputs is generated by finding the difference between each of the plurality of pixel outputs and the calculated average pixel output value. An offset value for an entire row of pixel outputs may also be calculated by finding the average pixel output value for a plurality of optically black pixels in the imager row. The average pixel output value for the optically black pixel values may be refined by discarding pixel values outside a threshold window and substituting the average pixel output value and calculate a new average pixel value.

REFERENCES:
patent: 5047863 (1991-09-01), Pape et al.
patent: 5172249 (1992-12-01), Hashimoto
patent: 5969758 (1999-10-01), Sauer et al.
patent: 6128039 (2000-10-01), Chen et al.
patent: 6248991 (2001-06-01), Chen et al.
patent: 6320616 (2001-11-01), Sauer
patent: 6421085 (2002-07-01), Xu
patent: 6538695 (2003-03-01), Xiao et al.
patent: 6646681 (2003-11-01), Macy et al.
patent: 6717127 (2004-04-01), Kimura et al.
patent: 6844896 (2005-01-01), Henderson et al.
patent: 6861634 (2005-03-01), Rossi
patent: 7046284 (2006-05-01), Kozlowski et al.
patent: 7242820 (2007-07-01), Nam
patent: 7379098 (2008-05-01), Yamamoto et al.
patent: 2003/0184666 (2003-10-01), Jo
patent: 2004/0105598 (2004-06-01), Kondo et al.
patent: 2005/0007159 (2005-01-01), Kondo et al.
patent: 2005/0013508 (2005-01-01), Kondo et al.
patent: 2005/0018916 (2005-01-01), Kondo
patent: 2005/0052541 (2005-03-01), Kondo
patent: 1 662 774 (2006-05-01), None
patent: 2 149 260 (1985-06-01), None
patent: 2005-101985 (2005-04-01), None
patent: 2005-167918 (2005-06-01), None
Written Opinion of the International Searching Authority, Jan. 31, 2008.
International Search Report and Written Opinion of the International Searching Authority, Dec. 13, 2006.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus providing imager noise reduction using... 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 providing imager noise reduction using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus providing imager noise reduction using... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4250885

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.