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:
-
- Albuquerque, NM
- Sandia Park, NM
- Los Angeles, CA
- 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)
- 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 = {Tue Sep 25 00:00:00 EDT 2007},
month = {Tue Sep 25 00:00:00 EDT 2007}
}
Works referenced in this record:
High-frequency scannerless imaging laser radar for industrial inspection and measurement applications
report, November 1996
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Time-of-flight range imaging with a custom solid state image sensor
conference, September 1999
- Lange, Robert; Seitz, Peter; Biber, Alice
- Industrial Lasers and Inspection (EUROPTO Series), SPIE Proceedings