公开(公告)号：US20090274997A1

公开(公告)日：2009-11-05

申请号：US12165961

申请日：2008-07-01

申请人： Eiko Kosuge ,  Koichi Ito ,  Takafumi Aoki

发明人： Eiko Kosuge ,  Koichi Ito ,  Takafumi Aoki

IPC分类号： A61C19/00

CPC分类号： G06K9/522 ,  A61B6/14 ,  G06K9/6206 ,  G06T7/33 ,  G06T2207/10116 ,  G06T2207/30036

摘要： A system for comparing dental X-ray images includes a positional displacement calculator calculating a positional displacement between dental X-ray test and reference images by using phase-only correlation, a positional displacement corrector correcting the positional displacement, a base point extractor defining, as a base image, any one of the dental X-ray test and reference images, and defining, as a corresponding image, the other one of the two dental images, and extracting base points from the base image, a corresponding point extractor extracting corresponding points, which correspond to the base points, from the corresponding image, a correspondence calculator calculating correspondence between the base points and the corresponding points, a nonlinear distortion corrector correcting a nonlinear distortion between the base image and the corresponding image, based on the correspondence, and a similarity calculator finding, by using phase-only correlation, a similarity between the base image and the corresponding image.

摘要翻译： 用于比较牙齿X射线图像的系统包括位置偏移计算器，其通过使用相位相关来计算牙科X射线测试和参考图像之间的位置偏移，校正位置偏移的位置偏移校正器，将基点提取器定义为 基础图像，牙科X射线测试和参考图像中的任一个，并且将两个牙齿图像中的另一个定义为相应的图像，并且从基本图像提取基点，相应的点提取器提取相应的点 对应于基点的对应计算器，计算基点与对应点之间的对应关系，基于对应关系校正基图像与对应图像之间的非线性失真的非线性失真校正器，以及 相似度计算器通过使用相位相关来找出相似度 基本图像和相应的图像。

公开(公告)号：US08045772B2

公开(公告)日：2011-10-25

申请号：US12165961

申请日：2008-07-01

申请人： Eiko Kosuge ,  Koichi Ito ,  Takafumi Aoki

发明人： Eiko Kosuge ,  Koichi Ito ,  Takafumi Aoki

IPC分类号： G06K9/00

CPC分类号： G06K9/522 ,  A61B6/14 ,  G06K9/6206 ,  G06T7/33 ,  G06T2207/10116 ,  G06T2207/30036

摘要： A system for comparing dental X-ray images includes a positional displacement calculator calculating a positional displacement between dental X-ray test and reference images by using phase-only correlation, a positional displacement corrector correcting the positional displacement, a base point extractor defining, as a base image, any one of the dental X-ray test and reference images, and defining, as a corresponding image, the other one of the two dental images, and extracting base points from the base image, a corresponding point extractor extracting corresponding points, which correspond to the base points, from the corresponding image, a correspondence calculator calculating correspondence between the base points and the corresponding points, a nonlinear distortion corrector correcting a nonlinear distortion between the base image and the corresponding image, based on the correspondence, and a similarity calculator finding, by using phase-only correlation, a similarity between the base image and the corresponding image.

摘要翻译： 用于比较牙齿X射线图像的系统包括位置偏移计算器，其通过使用相位相关来计算牙科X射线测试和参考图像之间的位置偏移，校正位置偏移的位置偏移校正器，将基点提取器定义为 基础图像，牙科X射线测试和参考图像中的任一个，并且将两个牙齿图像中的另一个定义为相应的图像，并且从基本图像提取基点，相应的点提取器提取相应的点 对应于基点的对应计算器，计算基点与对应点之间的对应关系，基于对应关系校正基图像与对应图像之间的非线性失真的非线性失真校正器，以及 相似度计算器通过使用相位相关来找出相似度 基本图像和相应的图像。