title: Polarimetric laser radar target classification.
abstract: Imaging laser radar (ladar) systems have been developed for automatic target identification in surveillance systems. Ladar uses the range value at the target pixels to estimate the target's 3-D shape and identify the target. For targets in clutter and partially hidden targets, there are ambiguities in determining which pixels are on target that lead to uncertainties in determining the target's 3-D shape. An improvement is to use the polarization components of the reflected light. We describe the operation and preliminary evaluation of a polarization diverse imaging ladar system. Using a combination of intensity, range, and degree of polarization, we are better able to identify and distinguish the target from other objects of the same class.
authors.affiliation: Physics Innovations Inc., P.O. Box 2171, Inver Grove Heights, Minnesota 55076-8171, USA. c.chun@ieee.org
authors.forename: Cornell S L
authors.initials: CS
authors.lastname: Chun
authors.forename: Firooz A
authors.initials: FA
authors.lastname: Sadjadi
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D016000:Cluster Analysis; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods; D007834:Lasers; D010363:Pattern Recognition, Automated / Q000379:methods*; D011825:Radar; D012031:Refractometry / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity