DRI Calculator
Detection
The capability to determine the presence of a target within the sensor’s field of view, typically requiring the target to span a minimum of 2 pixels across its critical dimension.
Recognition
The ability to classify the general type of target (e.g., distinguishing a human from an animal or a vehicle), generally necessitating a target resolution of at least 8 pixels.
Identification
The ability to discern specific features or details of the target (e.g., differentiating a man from a woman or identifying the exact type of vehicle), typically requiring a resolution of at least 12.8 pixels across the target.
What is DRI?
DRI stands for Detection, Recognition, and Identification.
Based on Johnson's Criteria, it provides a quantitative framework for determining the range at which a specific target can be detected, recognized, and identified under specified operational conditions.
*Using DRI calculation, users can quickly assess a system's observation capabilities at different distances, optimizing mission planning and equipment selection. This tool assists security, and industrial users in accurately estimating effective observation ranges, enhancing efficiency.
Based on Johnson's Criteria, it provides a quantitative framework for determining the range at which a specific target can be detected, recognized, and identified under specified operational conditions.
*Using DRI calculation, users can quickly assess a system's observation capabilities at different distances, optimizing mission planning and equipment selection. This tool assists security, and industrial users in accurately estimating effective observation ranges, enhancing efficiency.
DRI Range Calculator
Wavelength : *
LWIR
MWIR
Relative Target Size: *
Vessel
10*5
Tank
5*5
Vehicle
2.3*2.3
Person
1.7*0.5
Pixel Pitch (μm) : *
Lens Focal Length (mm) : *
Count
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Please note that this calculation is based on geometrical parameters (target size, distance, focal length, and pixel size). The result is an idealized estimate and does not account for signal strength, detector sensitivity, or atmospheric effects.