Tomographic Image Reconstruction From Laser Radar Reflective Projections

R. M. Marino; R. N. Capes; W. E. Keicher; S. R. Kulkarni; J. K. Parker; L. W. Swezey; J. R. Senning; M. F. Reiley; E. B. Craig

doi:10.1117/12.960240

18 February 1989 Tomographic Image Reconstruction From Laser Radar Reflective Projections

R. M. Marino, R. N. Capes, W. E. Keicher, S. R. Kulkarni, J. K. Parker, L. W. Swezey, J. R. Senning, M. F. Reiley, E. B. Craig

Author Affiliations +

Proceedings Volume 0999, Laser Radar III; (1989) https://doi.org/10.1117/12.960240
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

Image reconstruction from projections has been extensively developed in the medical field. For example, Computer Assisted Tomography (CAT) scanners measures the absorption of X-rays along ray-projections through a slice of a body. Applying reconstruction algorithms to these projection measurements leads to two or three-dimensional distribution of the mass density. We have applied similar methods which demonstrate image reconstruction from reflective projections obtained with laser radars. These baseband SAR techniques can be applied to any N-dimensional measurements resulting in reconstructions of N 1-dimensional images. For example, two-dimensional range-Doppler or angle-angle images taken from several views can be reconstructed into three-dimensional images. Shown in this paper, two-dimensional images have been reconstructed from one-dimensional range-time-intensity (RTI) data, Doppler-time-intensity (DTI) data, or a combination of both types of laser radar measurements. Typical RTI measurements can be obtained with either coherent linear FM waveforms, or with incoherent short pulse waveforms. In the DTI case, a cw waveform is sufficient and leads to true narrow-band imaging. We have applied these methods to both computer simulated data and field measurements, at both 10.6 μm and 0.53 μm wavelenghts, using various test targets.

Citation Download Citation

R. M. Marino, R. N. Capes, W. E. Keicher, S. R. Kulkarni, J. K. Parker, L. W. Swezey, J. R. Senning, M. F. Reiley, and E. B. Craig "Tomographic Image Reconstruction From Laser Radar Reflective Projections", Proc. SPIE 0999, Laser Radar III, (18 February 1989); https://doi.org/10.1117/12.960240

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available