Method and Apparatus to Determine Depth Information For A Scene of Interest
    2.
    发明申请
    Method and Apparatus to Determine Depth Information For A Scene of Interest 有权
    确定感兴趣场景的深度信息的方法和装置

    公开(公告)号:US20130088726A1

    公开(公告)日:2013-04-11

    申请号:US13645952

    申请日:2012-10-05

    IPC分类号: G01B11/02

    摘要: Depth information about a scene of interest is acquired by illuminating the scene, capturing reflected light energy from the scene with one or more photodetectors, and processing resulting signals, in at least one embodiment, a pseudo-randomly generated series of spatial light modulation patterns is used to modulate the light pulses either before or after reflection.

    摘要翻译: 通过照亮场景获取关于感兴趣场景的深度信息,通过一个或多个光电探测器捕获来自场景的反射光能,并且在至少一个实施例中处理结果信号,伪随机生成的一系列空间光调制模式是 用于在反射之前或之后调制光脉冲。

    Methods and apparatus for transient light imaging
    5.
    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。

    SYSTEM AND METHOD FOR DIFFUSE IMAGING WITH TIME-VARYING ILLUMINATION INTENSITY
    6.
    发明申请
    SYSTEM AND METHOD FOR DIFFUSE IMAGING WITH TIME-VARYING ILLUMINATION INTENSITY 有权
    用于具有时变照明强度的差分成像的系统和方法

    公开(公告)号:US20130044213A1

    公开(公告)日:2013-02-21

    申请号:US13572768

    申请日:2012-08-13

    IPC分类号: H04N7/18

    摘要: Diffuse image measurement system and digital image formation method. The system includes a source of light with time-varying intensity directed at a scene to be imaged. A time-resolved light meter is provided for receiving light reflected from the scene to generate time-resolved samples of the intensity of light incident at the light meter. The temporal variation in the intensity of light incident at the light meter is associated with a function of a radiometric property of the scene, such as a linear functional of reflectance, and a computer processes the samples to construct a digital image. The spatial resolution of the digital image is finer than the spatial support of the illumination on the scene and finer than the spatial support of the sensitivity of the light meter. Using appropriate light sources instead of impulsive illumination significantly improves signal-to-noise ratio and reconstruction quality.

    摘要翻译: 漫射图像测量系统和数字图像形成方法。 该系统包括指向要成像的场景的时变强度的光源。 提供时间分辨的光度计用于接收从场景反射的光,以产生入射在光计上的光的强度的时间分辨的样本。 在光度计处入射的光的强度的时间变化与场景的辐射特性的函数(诸如反射率的线性函数)相关联,并且计算机处理样本以构建数字图像。 数字图像的空间分辨率比现场照明的空间支持更精细,比光度计的灵敏度的空间支持更精细。 使用适当的光源而不是脉冲照明显着提高了信噪比和重建质量。

    Methods and Apparatus for Transient Light Imaging
    7.
    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。