Parallel phase-sensitive three-dimensional imaging camera
- Albuquerque, NM
- Sandia Park, NM
- Los Angeles, CA
- Altadena, CA
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.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia Corporation (Albuquerque, NM); California Institute of Technology (Pasadena, CA)
- Patent Number(s):
- 7,274,815
- Application Number:
- 10/681,961
- OSTI ID:
- 915743
- Country of Publication:
- United States
- Language:
- English
| High-frequency scannerless imaging laser radar for industrial inspection and measurement applications | report | November 1996 |
|
conference | September 1999 |
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