OPTICAL SURVEILLANCE
Introduction
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.
Animals have inspired the development of many new technologies. Animals have senses humans don’t have. Bats can “see” objects through echo location and dolphins can see through certain materials (like sand) using biological sonar. They can “ping” an object with sound and interpret the shape of the returning echoes. Some insects and birds ...
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