公开(公告)号：US07274815B1

公开(公告)日：2007-09-25

申请号：US10681961

申请日：2003-10-09

申请人： Colin L. Smithpeter ,  Eddie R. Hoover ,  Bedabrata Pain ,  Bruce R. Hancock ,  Robert O. Nellums

发明人： Colin L. Smithpeter ,  Eddie R. Hoover ,  Bedabrata Pain ,  Bruce R. Hancock ,  Robert O. Nellums

IPC分类号： G06K9/00

CPC分类号： G06K9/2036

摘要： An apparatus is disclosed for generating a three-dimensional (3-D) image of a scene illuminated by a pulsed light source (e.g. a laser or light-emitting diode). The apparatus, referred to as a phase-sensitive 3-D imaging camera utilizes a two-dimensional (2-D) array of photodetectors to receive light that is reflected or scattered from the scene and processes an electrical output signal from each photodetector in the 2-D array in parallel using multiple modulators, each having inputs of the photodetector output signal and a reference signal, with the reference signal provided to each modulator having a different phase delay. The output from each modulator is provided to a computational unit which can be used to generate intensity and range information for use in generating a 3-D image of the scene. The 3-D camera is capable of generating a 3-D image using a single pulse of light, or alternately can be used to generate subsequent 3-D images with each additional pulse of light.

摘要翻译： 公开了一种用于产生由脉冲光源（例如，激光或发光二极管）照射的场景的三维（3-D）图像的装置。 被称为相敏三维成像相机的装置利用二维（2-D）阵列的光电检测器来接收从场景反射或散射的光，并处理来自每个光电检测器的电输出信号 使用多个调制器并联的2-D阵列，每个调制器具有光电检测器输出信号和参考信号的输入，参考信号提供给具有不同相位延迟的每个调制器。 来自每个调制器的输出被提供给计算单元，该计算单元可用于生成用于生成场景的3-D图像的强度和范围信息。 3-D相机能够使用单个脉冲光产生3-D图像，或者可替代地用于产生具有每个附加脉冲光的随后的3-D图像。