Image analysis – Applications – Biomedical applications
Reexamination Certificate
2011-03-29
2011-03-29
Johns, Andrew W (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S199000
Reexamination Certificate
active
07916921
ABSTRACT:
It can be enabled an accurate diagnosis of osteoporosis by a simple method utilizing panoramic radiographs without requiring special skill or experience of a technician engaged in diagnosis of osteoporosis. It comprises an object region image acquisition means for enhancing the contrast of a mandible bone on digitized panoramic radiographs and extracting a portion of a mandible including a mental foramen and a mandibular base as an object region image; a discrimination and selection means for discriminating between a background portion and the portion of a mandible from the object region image and acquiring, as a judgment region image, a portion from which the background portion is removed; a defined image acquisition means for defining forms of a cortical bone and a cancellous bone constituting the mandible of the judgment region image; a means for specifying the cortical bone portion on the image in which the form is defined; calculation means for determining the thickness of the cortical bone based on the outline constituting the mental foramen and the cortical bone specified by the respective means; and an output means for outputting the determined thickness of the cortical bone.
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Jun'ichi Otogoto et al., “Panorama X-sen Shashin Parameter o Mochiita Shishubyo to Kotsu Soshosho no Kankei no Kento Oyobi Kotsu Soshosho Shindan no Kokoromi”, Journal of the Japanese Society of Periodontology, 2001, vol. 43, No. 1, pp. 13 to 24.
Agus Zainal Arifin
Asano Akira
Nakamoto Takashi
Taguchi Akira
Tanimoto Keiji
Birch & Stewart Kolasch & Birch, LLP
Hiroshima University Independent Administrative Agency
Johns Andrew W
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