An Evaluation of Two Low-Cost Thermal Imaging Cameras for Wildlife Damage Management Objectives

Abstract

The value of thermal imagery has been well documented for use in many aspects of wildlife damage management and other animal identification purposes. As technology has improved, prices for these devices continue to become more affordable. Two thermal imaging cameras were evaluated to determine effectiveness and utility of the devices under environments potentially encountered in the field. We tested the FLIR One (FLIR ONE) for an iPhone smart phone, and the FLIR Scout TK Compact Monocular (FLIR TK) device. Photographs of domestic animals and wildlife species were collected at distances of 3m-50m. A survey was developed and administered to professionals working with wildlife or domestic animals, containing paired images for each camera taken from similar distances and color palette. Survey participants (n = 52) reported the FLIR ONE camera produced more favorable images at closer distances (P < 0.05), and the FLIR TK at longer distances (P < 0.05). Overall, participants preferred (P < 0.05) the FLIR TK for producing the most desirable or useful images. Results of this study suggest both the FLIR TK and FLIR one thermal imaging cameras have the potential to be useful in collecting images of animals under low light conditions.