Research Papers

Three-dimensional LADAR range estimation using expectation maximization

[+] Author Affiliations
Paul F. Dolce

Air Force Institute of Technology, Graduate School of Engineering and Management, 2950 Hobson Way, Building 641, Wright Patterson AFB, Ohio 45433

Stephen C. Cain

Air Force Institute of Technology, Graduate School of Engineering and Management, 2950 Hobson Way, Building 641, Wright Patterson AFB, Ohio 45433

J. Appl. Remote Sens. 5(1), 053513 (March 24, 2011). doi:10.1117/1.3569126
History: Received September 24, 2010; Accepted March 01, 2011; Revised March 01, 2011; Published March 24, 2011; Online March 24, 2011
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Laser detection and ranging (LADAR) systems can be used to provide 2-D and 3-D images of scenes. Generally, 2-D images possess superior spatial resolution but without range data due to the density of their focal plane arrays. A 3-D LADAR system can produce range-to-target data at each pixel but lacks the 2-D system's superior spatial resolution. We develop an algorithm using an expectation maximization approach to estimate both 3-D LADAR range and the bias associated with a 3-D LADAR system. The algorithm we develop demonstrates both spatial and range resolution improvement over standard interpolation techniques using both real and simulated 3-D and 2-D LADAR data.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Paul F. Dolce and Stephen C. Cain
"Three-dimensional LADAR range estimation using expectation maximization", J. Appl. Remote Sens. 5(1), 053513 (March 24, 2011). ; http://dx.doi.org/10.1117/1.3569126


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