System and method for detecting tooth cracks via surface contour imaging

A method for imaging the surface of a tooth, the method executed at least in part on a computer records a first set of images of the tooth, wherein each image in the first set of images is illuminated according to a pattern oriented in a first direction. A second set of images of the tooth are recor...

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Bibliographische Detailangaben
Hauptverfasser:	LIANG RONGGUANG, CHEN SHOUPU
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE CALCULATING CINEMATOGRAPHY COMPUTING COUNTING DENTISTRY DIAGNOSIS ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE IDENTIFICATION IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEDICAL OR VETERINARY SCIENCE PHOTOGRAPHY PHYSICS SURGERY TESTING
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Beschreibung
Zusammenfassung:	A method for imaging the surface of a tooth, the method executed at least in part on a computer records a first set of images of the tooth, wherein each image in the first set of images is illuminated according to a pattern oriented in a first direction. A second set of images of the tooth are recorded, wherein each image in the second set of images is illuminated according to a pattern oriented in a second direction that is shifted more than 10 degrees with respect to the first direction. A first contour image is reconstructed according to the recorded first set of images and a second contour image according to the recorded second set of images. A residual image is formed as a combination of the first and second contour images. The residual image is analyzed and surface conditions of the tooth reported.