INTRODUCTION

Firefighters use thermal imaging cameras to see through smoke, find people and localized hotspots of fires. Law enforcement uses them to manage surveilllance activities, locate and apprehend suspects, investigate crime scenes and conduct search and rescue operations.
Power line maintenance technicians locate overheating joints and parts to eliminate potential failures. Where thermal insulation becomes faulty, building construction technicians can see heat leaks to improv the effciencies of cooling or heating, Physiological activities, such as fever, in human beings and other warm-blooded animals can also be monitored with thermographic imaging.