Methods and apparatus for estimation of motion and size of non-line-of-sight objects
    3.
    发明申请
    Methods and apparatus for estimation of motion and size of non-line-of-sight objects 有权
    用于估计非视距物体的运动和尺寸的方法和装置

    公开(公告)号:US20120300062A1

    公开(公告)日:2012-11-29

    申请号:US13479185

    申请日:2012-05-23

    IPC分类号: H04N7/18

    CPC分类号: G01S17/58 G01S17/89

    摘要: In exemplary implementations of this invention, a time of flight camera (ToF camera) can estimate the location, motion and size of a hidden moving object, even though (a) the hidden object cannot be seen directly (or through mirrors) from the vantage point of the ToF camera (including the camera's illumination source and sensor), and (b) the object is in a visually cluttered environment. The hidden object is a NLOS (non-line-of-sight) object. The time of flight camera comprises a streak camera and a laser. In these exemplary implementations, the motion and absolute locations of NLOS moving objects in cluttered environments can be estimated through tertiary reflections of pulsed illumination, using relative time differences of arrival at an array of receivers. Also, the size of NLOS moving objects can be estimated by backprojecting extremas of NLOS moving object time responses.

    摘要翻译: 在本发明的示例性实施方式中,飞行时间相机(ToF相机)可以估计隐藏的移动物体的位置,运动和尺寸,即使(a)从有利位置看不到直接(或通过反射镜)隐藏的物体 ToF相机(包括相机的照明源和传感器)的点,(b)物体在视觉上混乱的环境中。 隐藏的对象是一个NLOS(非视距)对象。 飞行时间相机包括条纹相机和激光。 在这些示例性实施方案中,可以使用到达接收器阵列的相对时间差,通过脉冲照明的三次反射来估计NLOS移动物体在杂乱环境中的运动和绝对位置。 此外,NLOS移动对象的大小可以通过反向投影NLOS移动对象时间响应的极值来估计。

    Methods and apparatus for estimation of motion and size of non-line-of-sight objects
    4.
    发明授权
    Methods and apparatus for estimation of motion and size of non-line-of-sight objects 有权
    用于估计非视距物体的运动和尺寸的方法和装置

    公开(公告)号:US09146317B2

    公开(公告)日:2015-09-29

    申请号:US13479185

    申请日:2012-05-23

    IPC分类号: G01S17/58 G01S17/89

    CPC分类号: G01S17/58 G01S17/89

    摘要: In exemplary implementations of this invention, a time of flight camera (ToF camera) can estimate the location, motion and size of a hidden moving object, even though (a) the hidden object cannot be seen directly (or through mirrors) from the vantage point of the ToF camera (including the camera's illumination source and sensor), and (b) the object is in a visually cluttered environment. The hidden object is a NLOS (non-line-of-sight) object. The time of flight camera comprises a streak camera and a laser. In these exemplary implementations, the motion and absolute locations of NLOS moving objects in cluttered environments can be estimated through tertiary reflections of pulsed illumination, using relative time differences of arrival at an array of receivers. Also, the size of NLOS moving objects can be estimated by backprojecting extremas of NLOS moving object time responses.

    摘要翻译: 在本发明的示例性实施方式中,飞行时间相机(ToF相机)可以估计隐藏的移动物体的位置,运动和尺寸,即使(a)从有利位置看不到直接(或通过反射镜)隐藏的物体 ToF相机(包括相机的照明源和传感器)的点,(b)物体在视觉上混乱的环境中。 隐藏的对象是一个NLOS(非视距)对象。 飞行时间相机包括条纹相机和激光。 在这些示例性实施方案中,可以使用到达接收器阵列的相对时间差异,通过脉冲照明的三次反射来估计NLOS移动物体在杂乱环境中的运动和绝对位置。 此外,NLOS移动对象的大小可以通过反向投影NLOS移动对象时间响应的极值来估计。