Methods and apparatus for transient light imaging
    1.
    发明授权
    Methods and apparatus for transient light imaging 有权
    瞬态光成像的方法和装置

    公开(公告)号:US08749619B2

    公开(公告)日:2014-06-10

    申请号:US12893863

    申请日:2010-09-29

    摘要: In illustrative implementations of this invention, multi-path analysis of transient illumination is used to reconstruct scene geometry, even of objects that are occluded from the camera. An ultrafast camera system is used. It comprises a photo-sensor (e.g., accurate in the picosecond range), a pulsed illumination source (e.g. a femtosecond laser) and a processor. The camera emits a very brief light pulse that strikes a surface and bounces. Depending on the path taken, part of the light may return to the camera after one, two, three or more bounces. The photo-sensor captures the returning light bounces in a three-dimensional time image I(x,y,t) for each pixel. The camera takes different angular samples from the same viewpoint, recording a five-dimensional STIR (Space Time Impulse Response). A processor analyzes onset information in the STIR to estimate pairwise distances between patches in the scene, and then employs isometric embedding to estimate patch coordinates.

    摘要翻译: 在本发明的说明性实现中,瞬时照明的多路径分析被用于重建场景几何图形,甚至是从相机遮挡的对象。 使用超高速摄像系统。 它包括光传感器(例如,在皮秒范围内精确的),脉冲照明源(例如飞秒激光)和处理器。 相机发出非常短暂的光脉冲,撞击表面并弹跳。 根据所采取的路径,部分光线可能在一次,两次,三次或更多次弹跳后返回相机。 光传感器捕获每个像素的三维时间图像I(x,y,t)中的返回光反弹。 相机从相同的角度拍摄不同的角度样本,记录五维STIR(空间时间脉冲响应)。 处理器分析STIR中的发作信息以估计场景中的斑块之间的成对距离,然后使用等距嵌入来估计贴片坐标。

    Methods and Apparatus for Transient Light Imaging
    2.
    发明申请
    Methods and Apparatus for Transient Light Imaging 有权
    瞬态光成像方法与装置

    公开(公告)号:US20120075423A1

    公开(公告)日:2012-03-29

    申请号:US12893863

    申请日:2010-09-29

    IPC分类号: H04N15/00

    摘要: In illustrative implementations of this invention, multi-path analysis of transient illumination is used to reconstruct scene geometry, even of objects that are occluded from the camera. An ultrafast camera system is used. It comprises a photo-sensor (e.g., accurate in the picosecond range), a pulsed illumination source (e.g. a femtosecond laser) and a processor. The camera emits a very brief light pulse that strikes a surface and bounces. Depending on the path taken, part of the light may return to the camera after one, two, three or more bounces. The photo-sensor captures the returning light bounces in a three-dimensional time image I(x,y,t) for each pixel. The camera takes different angular samples from the same viewpoint, recording a five-dimensional STIR (Space Time Impulse Response). A processor analyzes onset information in the STIR to estimate pairwise distances between patches in the scene, and then employs isometric embedding to estimate patch coordinates.

    摘要翻译: 在本发明的说明性实现中,瞬时照明的多路径分析被用于重建场景几何图形,甚至是从相机遮挡的对象。 使用超高速摄像系统。 它包括光传感器(例如,在皮秒范围内精确的),脉冲照明源(例如飞秒激光)和处理器。 相机发出非常短暂的光脉冲,撞击表面并弹跳。 根据所采取的路径,部分光线可能在一次,两次,三次或更多次弹跳后返回相机。 光传感器捕获每个像素的三维时间图像I(x,y,t)中的返回光反弹。 相机从相同的角度拍摄不同的角度样本,记录五维STIR(空间时间脉冲响应)。 处理器分析STIR中的发作信息以估计场景中的斑块之间的成对距离,然后使用等距嵌入来估计贴片坐标。