Image analysis – Applications – Biomedical applications
Reexamination Certificate
2006-04-21
2009-08-18
Bali, Vikkram (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S132000, C382S254000, C433S029000, C433S215000
Reexamination Certificate
active
07577284
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.
REFERENCES:
patent: 4184175 (1980-01-01), Mullane, Jr.
patent: 4479499 (1984-10-01), Alfano
patent: 4515476 (1985-05-01), Ingmar
patent: 5306144 (1994-04-01), Hibst et al.
patent: 6122103 (2000-09-01), Perkins et al.
patent: 6231338 (2001-05-01), de Josselin de Jong et al.
patent: 7163397 (2007-01-01), Hahn et al.
patent: 7270543 (2007-09-01), Stookey et al.
patent: 2003/0156788 (2003-08-01), Henning
patent: 2004/0202356 (2004-10-01), Stookey et al.
patent: 2004/0236232 (2004-11-01), Jonusauskas et al.
patent: 2004/0240716 (2004-12-01), de Josselin de Jong et al.
patent: 2005/0003323 (2005-01-01), Katsuda et al.
patent: WO 03/094771 (2003-11-01), None
patent: WO2004/104927 (2004-12-01), None
Fried et al.; Imaging caries lesions and lesion progression with polarization sensitive optical coherence tomography; Journal of Biomedical Optics, vol. 7, No. 4, Oct. 2002, pp. 618-627.
Buchalla et al.; Optimal Camera and Illumincation Angulations for Detection of Interproximal Caries Using Quantitative Light-Induced Fluorescence; Caries Research 2002, pp. 320-326, May 22, 2002.
Liang Rongguang
Marcus Michael A.
McLaughlin Paul O.
Patton David L.
Wong Victor C.
Bali Vikkram
Bayat Ali
Carestream Health Inc.
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