We present an imaging system that measures the polarimetric state of the light coming from each point of a scene. This system, which determines the four components of the Stokes vector at each spatial location, is based on a liquid-crystal polarization modulator, which makes it possible to acquire four-dimensional Stokes parameter images at a standard video rate. We show that using such polarimetric images instead of simple intensity images can improve target detection and segmentation performance.
© 2004 Optical Society of America
(100.0100) Image processing : Image processing
(100.5010) Image processing : Pattern recognition
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(230.3720) Optical devices : Liquid-crystal devices
(260.5430) Physical optics : Polarization
Fraņois Goudail, Patrick Terrier, Yoshitate Takakura, Laurent Bigué, Frédéric Galland, and Vincent DeVlaminck, "Target Detection with a Liquid-Crystal-Based Passive Stokes Polarimeter," Appl. Opt. 43, 274-282 (2004)