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1. 发明申请

US20100227291A1 INTRA-ORAL THREE-DIMENSIONAL IMAGING SYSTEM 有权
标题翻译：内窥镜三维成像系统
公开(公告)号：US20100227291A1
公开(公告)日：2010-09-09
申请号：US12738199
申请日：2008-10-23
申请人： Robert F. Dillon , Bing Zhao , Neil H.K. Judell
发明人： Robert F. Dillon , Bing Zhao , Neil H.K. Judell
IPC分类号： A61B1/24 , G01B11/24 , G01J3/00
CPC分类号： A61B5/0088 , A61B5/0084 , A61B5/4547 , A61B5/682 , A61C9/006 , A61C9/0073 , G01B11/2527
摘要： Described are a method and device for determining three-dimensional position information of a surface of a translucent object having a wavelength-dependent transmittance and reflectance characteristics. The method includes illuminating the surface of the translucent object with optical radiation at a predetermined wavelength emitted from a pair of optical sources. Radiation scattered from the surface and below the surface is detected, and a phase of the optical radiation from one of the optical sources relative to a phase of the optical radiation from the other optical source is changed before again detecting the scattered radiation. The predetermined wavelength is selected so that the optical radiation scattered from below the surface and detected provides a substantially constant background intensity with respect to the optical radiation scattered from the surface and detected. Three-dimensional position information of the surface is calculated in response to the detected radiation.
摘要翻译：描述了一种用于确定具有波长依赖的透射率和反射率特性的半透明物体的表面的三维位置信息的方法和装置。该方法包括用从一对光源发射的预定波长的光辐照照射半透明物体的表面。检测从表面和表面下方散射的辐射，并且在再次检测散射辐射之前改变来自光源之一相对于来自另一光源的光辐射的相位的相位的相位。选择预定波长，使得从表面下方散射的光辐射相对于从表面散射的光辐射提供基本上恒定的背景强度并被检测。响应于检测到的辐射计算表面的三维位置信息。

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