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Title: Parallel phase-sensitive three-dimensional imaging camera

Abstract

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.

Inventors:
 [1];  [2];  [3];  [4];  [1]
  1. Albuquerque, NM
  2. Sandia Park, NM
  3. Los Angeles, CA
  4. Altadena, CA
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
915743
Patent Number(s):
7274815
Application Number:
10/681,961
Assignee:
Sandia Corporation (Albuquerque, NM); California Institute of Technology (Pasadena, CA)
Patent Classifications (CPCs):
G - PHYSICS G06 - COMPUTING G06K - RECOGNITION OF DATA
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Smithpeter, Colin L, Hoover, Eddie R, Pain, Bedabrata, Hancock, Bruce R, and Nellums, Robert O. Parallel phase-sensitive three-dimensional imaging camera. United States: N. p., 2007. Web.
Smithpeter, Colin L, Hoover, Eddie R, Pain, Bedabrata, Hancock, Bruce R, & Nellums, Robert O. Parallel phase-sensitive three-dimensional imaging camera. United States.
Smithpeter, Colin L, Hoover, Eddie R, Pain, Bedabrata, Hancock, Bruce R, and Nellums, Robert O. Tue . "Parallel phase-sensitive three-dimensional imaging camera". United States. https://www.osti.gov/servlets/purl/915743.
@article{osti_915743,
title = {Parallel phase-sensitive three-dimensional imaging camera},
author = {Smithpeter, Colin L and Hoover, Eddie R and Pain, Bedabrata and Hancock, Bruce R and Nellums, Robert O},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {9}
}

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Works referenced in this record:

Time-of-flight range imaging with a custom solid state image sensor
conference, September 1999