ABSTRACT
Motion sensors can trigger a camera to record at higher resolutions or frame rates. Sensors are an important aspect of robotics and many of the sensors are optical. Visible light, infrared, and optical cameras are all commonly used for aerial surveillance and sometimes the same scene is imaged in more than one sensing mode to provide comparative data. Most cameras capture wavelengths similar to those humans perceive, but some can image wavelengths on either side of the optical spectrum known as infrared and ultraviolet. Optical devices have a wide range of properties that make them more suitable for some applications than others. Some insects and birds can see optical wavelengths beyond human vision. Humans sense their environment through sight, sound, touch, smell, and taste. Of these, sight and sound are the most common models for surveillance technologies and sight is particularly important since many eavesdropping laws prevent recording of sounds.
