| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for extracting a carious lesion area from a sound region of a tooth. <P>SOLUTION: The method includes steps of: generating a digital image of the tooth; identifying tooth regions; extracting a suspicious lesion area by using marker-controlled watershed algorithm or by using a morphological bottom-hat based method together with a multi-resolution surface reconstruction method; and removing false positives. Otherwise, the method includes steps of: generating a digital image of the tooth obtaining a fluorescence image of the tooth, obtaining a reflectance image of the tooth, and combining image data for the fluorescence and reflectance images; identifying tooth regions; extracting suspicious lesion areas; and removing false positives. <P>COPYRIGHT: (C)2011,JPO&INPIT |
