Remote Sensing through Imaging Polarimetry for Nuclear Non-Proliferation

Remote sensing technologies are used to identify activities associated with the proliferation of weapons of mass destruction. Remote sensing requires the extraction of as much information as possible from the available measured energy, in order to identify objects of interest in the scene. Polarization is a fundamental property of light that is not typically exploited because of the additional difficulties in sensing and processing the information. However, polarization has the potential to increase signal-to-noise ratios, enhance man-made objects in contrast to a natural background, provide increased image stability in the infrared region of the spectrum, and characterize the shape and orientation of objects. This project will design, build, and deliver a small, portable, and affordable imaging polarimeter system for the detection and identification of important image features. Phase I developed two viable multi-camera imaging infrared polarimeter designs, tested algorithms that enhance the recognition of polarized scene elements, and collected and tested tools needed for simulation and analysis. Phase II will build, calibrate, and test the two infrared imaging polarimeter systems. Commercial Applications and other Benefits as described by the awardee: A small, portable, and inexpensive polarization-sensitive infrared imaging system would be useful in many environmental monitoring applications where changes of texture occur. These applications include the detection of ice in surfaces, oil slicks, anti-personnel land mines, and other human-induced changes in natural scenes.