Evaluating Infrared Camera Performance in Detecting Moving Heat Signatures
Keywords:
infrared camera, heat signatures, dynamic targets, security, surveillance, forward motion, lateral motionAbstract
The development and widespread adoption of infrared (IR) cameras, capable of detecting static and dynamic heat signatures, have enabled the creation of advanced security and surveillance systems. While most of the current research into the effectiveness of IR cameras in security-based settings involves the use of static heat signatures, an understanding of how these cameras perform on dynamic targets is also vital as moving heat signatures are ubiquitous in real-world scenarios. This study aims to determine the efficacy of IR cameras on a heat signature in a range of different motions to justify or challenge their prevalent use in commercial and residential surveillance systems. In this research, both forward motion and lateral motion setups were used consisting of a one-meter straight path, in-line with the IR camera, and a 70 cm straight path, facing the IR camera side-on, respectively. Both experimental setups tested the heat signatures moving at multiple speeds. This study found in the forward motion test that the IR camera was accurate in observing the temperature of the heat signature, however, greater distances between the heat signature and the camera resulted in lower temperature recordings.
The lateral motion test found the sense time for the heat signature increased as its speed decreased, and that there is a speed great enough at which the heat signature remains undetected by the IR camera. Consequently, this research has confirmed that limitations do exist in IR camera surveillance technology, meaning that while significantly effective, these systems cannot be completely relied upon.
