EYE-SAFE STANDOFF FUSION DETECTION
|40m Standoff Detection of Explosive Residue
Eye Safe Standoff detection of explosives
ChemImage has developed an Eye-Safe Standoff Fusion Detection (ESFD) Sensor under contract with the US Army Research Office (ARO) and in coordination with the US Army Research Laboratory (ARL). The ESFD sensor combines a laser Raman standoff detector with a wide area surveillance sensor in an eye-safe configuration for the standoff detection of chemical, biological, and explosive (CBE) materials. Standoff detection of these materials allow soldiers to evaluate a suspected threat from a safe distance, and has the potential to save the lives of soldiers and civilians. This program has focused on:
- Development of a novel design for eye-safe, laser based sensor
- Fusion of multiple sensing techniques for detection of CBE threats
HOW IT WORKS
For optimal detection, the ESFD sensor combines short-wave infrared (SWIR) hyperspectral imaging, Raman hyperspectral imaging and Long-wave infrared (LWIR) imaging. Alone, each of these techniques has limitations, but by developing a sensor fusion platform, ChemImage has been able to greatly improve the overall system performance. SWIR provides wide area surveillance capability while Raman provides threat material confirmation capability, and LWIR provides a biometric monitoring capability that enables the laser system to be automatically turned off in the presence of humans who could come into contact with the laser beam where the sample is being evaluated.
MAKING LASER BASED DETECTION SYSTEMS EYE-SAFE
ChemImage has developed innovative human object imaging and tracking algorithms to prevent injury to humans who may be approaching or already have breached the eye hazard zone. The system uses a UV laser that produces high Raman signal, yet is much safer to the eye than visible lasers. The system uses an optical design that minimizes the eye hazard zone around the focal point of the laser. LWIR imaging is used in combination with the human object tracking to first detect heat signatures indicating human presence. If a human is detected, the laser shutter is prompted to close, cutting off the laser beam and avoiding any contact with humans.
ChemImage is currently in Phase II this program, working to improve sensor fusion strategies and reducing the potential for eye hazards through refinement of hardware and software subsystems.
For more information on the ESFD sensor and other threat detection programs, please contact ChemImage
for additional information on our remote and standoff capabilities.