Image analysis – Image transformation or preprocessing – Correlation
Reexamination Certificate
2006-02-07
2006-02-07
Ahmed, Samir (Department: 2623)
Image analysis
Image transformation or preprocessing
Correlation
C396S128000, C704S217000, C704S237000, C704S263000, C359S306000, C708S005000, C708S426000
Reexamination Certificate
active
06996291
ABSTRACT:
After one or both of a pair of images are obtained, an auto-correlation function for one of those images is generated to determine a smear amount and possibly a smear direction. The smear amount and direction are used to identify potential locations of a peak portion of the correlation function between the pair of images. The pair of images is then correlated only at offset positions corresponding to the one or more of the potential peak locations. In some embodiments, the pair of images is correlated according to a sparse set of image correlation function value points around the potential peak locations. In other embodiments, the pair of images is correlated at a dense set of correlation function value points around the potential peak locations. The correlation function values of these correlation function value points are then analyzed to determine the offset position of the true correlation function peak.
REFERENCES:
patent: 4671650 (1987-06-01), Hirzel et al.
patent: 4967093 (1990-10-01), Takemori
patent: 5453840 (1995-09-01), Parker et al.
patent: 5619596 (1997-04-01), Iwaki et al.
patent: 5686720 (1997-11-01), Tullis
patent: 6067367 (2000-05-01), Nakajima et al.
patent: 6141578 (2000-10-01), Hardy
patent: 6589634 (2003-07-01), Schultz et al.
patent: 6683984 (2004-01-01), Simske et al.
patent: 6754367 (2004-06-01), Ito et al.
patent: 0 254 644 (1988-01-01), None
patent: 0 347 912 (1989-12-01), None
patent: 2 222 499 (1990-03-01), None
Schreier et al., “Systematic errors in digital image correction caused by intensity interpolation”,Photo-Optical Instrumental Engineering, Nov., 2000, pp. 2915-2921.
Ahmed Samir
Bhatnagar Anand
Mitutoyo Corporation
Oliff & Berridg,e PLC
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