Image analysis – Applications – Biomedical applications
Reexamination Certificate
2007-05-08
2007-05-08
Johns, Andrew W. (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S274000
Reexamination Certificate
active
10456280
ABSTRACT:
A method, system and apparatus for processing a radiographic image of a scanned object is disclosed. A pixel offset correction is performed in integer format on the radiographic image using saturation arithmetic to produce an image in integer format with any negative corrected values clipped to a value of zero. The resulting pixels are converted to floating point format and the converted pixels are multiplied by a gain factor. Optionally the resulting pixels are recursively averaged with previous results. The resulting pixels are converted to integer format and the converted pixel values are clamped to a maximum value using saturation arithmetic. Non-functional pixel correction is performed in integer format and the resulting pixel values are clamped to a maximum value using saturation arithmetic. An optional processing path replaces the recursive average by a linear average. The resulting pixel values are optionally filtered to enhance features of interest. The resulting pixel value is mapped in integer format to a palette index to establish an output pixel intensity having one of many intensity levels. The optional processing is controlled through the hardware interface of a real-time image controller as images are acquired.
REFERENCES:
patent: 5053770 (1991-10-01), Mayer et al.
patent: 5177697 (1993-01-01), Schanen et al.
patent: 5220589 (1993-06-01), Gard
patent: 5422805 (1995-06-01), McIntyre et al.
patent: 5519441 (1996-05-01), Gusmano et al.
patent: 5594854 (1997-01-01), Baldwin et al.
patent: 5684728 (1997-11-01), Okayama et al.
patent: 5874909 (1999-02-01), Soenen et al.
patent: 6314443 (2001-11-01), Seal
patent: 6504895 (2003-01-01), Dixon et al.
patent: 2003/0002725 (2003-01-01), Dixon et al.
Bueno Clifford
Dixon Elizabeth
Dixon Walter
Hopkins Forrest
Hopple Michael
Clarke Penny A.
General Electric Company
Johns Andrew W.
Patnode Patrick K.
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