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Traditional remote sensing instruments typically capture images under bright illumination conditions. However, recent advancements in focal plane and high-throughput optical technology have enabled unprecedented low-light remote sensing.
These low-light images are invaluable for various applications, such as:
Disaster response and management
Human activity monitoring and economic output assessments
Power consumption estimations for urban planning
Las Vegas, NV, Light Identification Map
DESIS Las Vegas, NV, Light Identification Map (Left)Bar Graph of Scene Percentages of Each Light Type (Right)In this example, MH and White LEDs Dominate the NTLs Observed within the Scene.Â
Las Vegas, NV April 21, 2023
DESIS Hyperspectral
High Pressure Sodium (HPS) Lamp
Red LED
Challenges in Low Light Imaging
Challenges in Low Light Imaging
Capturing and interpreting low-light images presents unique challenges:
Reduced image quality due to low photon counts
Increased noise levels in sensor data, affecting image clarity
Unknown atmospheric effects, which can vary and affect image interpretation
Inaccurate or unknown radiometric calibration under low-light conditions
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