Image analysis – Applications – Biomedical applications
Reexamination Certificate
2009-07-09
2010-11-30
Ahmed, Samir A. (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S132000, C382S254000, C433S029000
Reexamination Certificate
active
07844091
ABSTRACT:
A method for caries detection uses an image capture device (30, 32) to obtain fluorescence image data from the tooth (20) by illuminating the tooth to excite fluorescent emission. A first enhanced image of the tooth is then obtained by illuminating the tooth at a first incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. A second enhanced image of the tooth is then obtained by illuminating the tooth at a second incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. The first and second enhanced images are then analyzed to select and display the best-contrast image. This method provides high contrast images for carious regions (58) on all tooth surfaces.
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Liang Rongguang
Marcus Michael A.
McLaughlin Paul O.
Patton David L.
Wong Victor C.
Ahmed Samir A.
Bayat Ali
Carestream Health Inc.
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