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Scannerless loss modulated flash color range imaging

Patent ·
OSTI ID:961573

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
7,495,748
Application Number:
11/874,241
OSTI ID:
961573
Country of Publication:
United States
Language:
English

References (4)

Fusion of current technologies with real-time 3D MEMS ladar for novel security and defense applications conference May 2006
A co-boresighted synchronized ladar/EO imager for creating 3D images of dynamic scenes conference May 2005
Adaptive ladar receiver for multispectral imaging conference September 2001
Eye-safe laser radar 3D imaging conference September 2004

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