Image analysis – Applications – Biomedical applications
Reexamination Certificate
2007-02-06
2007-02-06
Mehta, Bhavesh M. (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S260000, C382S275000, C378S062000, C378S164000
Reexamination Certificate
active
11298375
ABSTRACT:
A method for detecting and attenuating grid artifacts in a digital radiographic image comprising; providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determine whether the input digital radiographic image has a grid artifacts; and if it does detecting the grid orientation, frequency, and signal-to-noise ratio of the grid artifacts, designing a frequency bandstop (notch) digital 1-D filter as a function of the grid frequency and attenuation level; and suppressing the grid artifacts by further processing said input digital radiographic image with said designed filter to produce an output digital radiographic image of improved image quality.
REFERENCES:
patent: 5276614 (1994-01-01), Heuscher
patent: 5881162 (1999-03-01), Ishimitsu
patent: 6233060 (2001-05-01), Shu et al.
patent: 6333990 (2001-12-01), Yazici et al.
patent: 6587594 (2003-07-01), Yamada
patent: 7050618 (2006-05-01), Belykh et al.
Belykh Igor N.
Cornelius Craig W.
Eastman Kodak Company
Edwards Patrick
Mehta Bhavesh M.
Parulski Susan L.
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