Modeling Reliable Detection Range of Cetaceans Imaged with Infrared Cameras

Abstract Infrared (IR) imaging systems are used on vessels, platforms, and drones to detect cetaceans several kilometers away, helping to mitigate harm from maritime activities like vessel strikes and pile driving. To ensure operational effectiveness, the reliable detection range (RDR) —the distance at which 100% detection probability is achieved—is a critical metric. This study presents a radiometric model for calculating RDR across a wide range of environmental conditions and system parameters, which enables the evaluation of IR system performance without extensive at-sea data collection. Competing Interest Statement The authors have declared no competing interest. Copyright The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.