The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2009
Filed:
Mar. 09, 2007
Clifford Bueno, Clifton Park, NY (US);
Elizabeth Lokenberg Dixon, Delanson, NY (US);
Walter Vincent Dixon, Delanson, NY (US);
Forrest Frank Hopkins, Cohoes, NY (US);
Michael Robert Hopple, Scotia, NY (US);
Brian Walter Lasiuk, Waukesha, WI (US);
Ronald Cecil Mcfarland, Cincinnati, OH (US);
August David Matula, Fredericksburg, VA (US);
Robert James Mitchell, Jr., Waterford, NY (US);
Kevin Layne Moermond, Cincinnati, OH (US);
Gregory Alan Mohr, West Chester, OH (US);
Clifford Bueno, Clifton Park, NY (US);
Elizabeth Lokenberg Dixon, Delanson, NY (US);
Walter Vincent Dixon, Delanson, NY (US);
Forrest Frank Hopkins, Cohoes, NY (US);
Michael Robert Hopple, Scotia, NY (US);
Brian Walter Lasiuk, Waukesha, WI (US);
Ronald Cecil McFarland, Cincinnati, OH (US);
August David Matula, Fredericksburg, VA (US);
Robert James Mitchell, Jr., Waterford, NY (US);
Kevin Layne Moermond, Cincinnati, OH (US);
Gregory Alan Mohr, West Chester, OH (US);
General Electric Company, Niskayuna, NY (US);
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.