Hyperspectral imaging has emerged as a useful technology for target recognition and anomaly detection. However, passive hyperspectral sensors in the VNIR/SWIR are limited to daytime and fair weather operations. Furthermore, for applications such as material identification, the need for reflectance spectra requires either in-scene calibration panels or detailed atmospheric information. Active hyperspectral sensing has the potential to increase the utility of hyperspectral imaging by enabling nighttime operation and non-cooperative conversion to reflectance. At MIT Lincoln Laboratory we have developed an active hyperspectral sensor system to investigate combining active illumination with hyperspectral imaging. Our primary illumination source is a novel broadband 'white light' laser, developed at MIT Lincoln Laboratory. Initial phenomenology measurements have revealed an additional benefit of active illumination - enhanced scene contrast due to shadow reduction. We have demonstrated two orders of magnitude decrease in false alarm rates with active illumination versus passive.
Active hyperspectral imaging
Imaging Spectrometry VI ; 2000 ; San Diego,CA,United States
Proc. SPIE ; 4132
2000-11-15
Conference paper
Electronic Resource
English
Active hyperspectral sensing and imaging for remote spectroscopy applications
British Library Online Contents | 2013
|Programmable Hyperspectral Imaging Mapper
NTRS | 1992
|Hyperspectral Imaging Based Persistent Surveillance
AIAA | 2008
|