公开(公告)号：EP1762862A1

公开(公告)日：2007-03-14

申请号：EP05108303.8

申请日：2005-09-09

申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.

发明人： Watgen, Claude ,  Lamesch, Laurent

IPC分类号： G01S17/89 ,  G01S17/36

CPC分类号： G01S17/36 ,  G01S17/89

摘要： A method for 3D imaging of an actively illuminated target region comprises emitting intensity-modulated light at a variable modulation frequency into the target region. The emitted light is scattered/reflected in the target region depending on the optical properties of the objects or beings present therein. A scattered and/or reflected fraction of the light is detected during an integration time interval by phase-sensitive integration in each pixel of an imaging sensor. The modulation phase between the emitted and the detected light is determined and spatially resolved. Distance information is calculated based on the spatially resolved modulation phase and an average frequency of the modulation frequency.

摘要翻译： 用于主动照射的目标区域的3D成像的方法包括以可变调制频率将强度调制的光发射到目标区域中。 发射的光根据存在于其中的物体或物体的光学性质而在目标区域中散射/反射。 在积分时间间隔内通过成像传感器的每个像素中的相敏积分来检测光的散射和/或反射分数。 确定发射光和检测光之间的调制相位并进行空间解析。 基于空间分辨的调制相位和调制频率的平均频率来计算距离信息。