The Spectral and Polarimetric Imagery Collection Experiment (SPICE) is an ongoing collaborative effort that
commenced in February 2010 between the US Army ARDEC and Army Research Laboratory (ARL). SPICE is focused
on the collection of mid-wave and long-wave infrared imagery using hyperspectral, polarimetric, and broadband sensors.
The overall objective of SPICE is to collect a comprehensive database of the different modalities spanning multiple years
to capture sensor performance encompassing a wide variety of meteorological (MET) conditions, diurnal, and seasonal
changes inherent to Picatinny's northern New Jersey location.
Utilizing the Precision Armament Laboratory (PAL) tower at Picatinny Arsenal, the sensors are autonomously collecting
the desired data around the clock at multiple ranges containing surrogate 2S3 Self-Propelled Howitzer targets positioned
at different orientations in an open woodland field. This database allows for: 1) Understanding of signature variability
under adverse weather conditions; 2) Development of robust algorithms; 3) Development of new sensors; 4) Evaluation
of polarimetric technology; and 5) Evaluation of fusing the different sensor modalities.
In this paper, we will revisit the SPICE data collection objectives and the sensors deployed. We will present, in a
statistical sense, the integrity of the data in the long-wave infrared (LWIR) polarimetric database collected from
February through September 2010 and issues and lessons learned associated with a fully autonomous, around the clock
data collection. We will also demonstrate sample LWIR polarimetric imagery and the performance of the Stokes
parameters under adverse weather conditions.