Scientists say the ground-breaking research, from Edinburgh's Heriot-Watt University, could be a 'step change' for security ...

LiDAR, or Light Detection and Ranging, works by measuring the time it takes for a laser pulse to travel to an object and back ...

Imagine being able to capture a high-resolution 3D image of a distant object—even a human face—through fog, foliage, or ...

Travelers face privacy threats from hidden cameras in hotel rooms. Smartphones can detect these cameras through flashlight reflections, infrared light ...