Have a look at this video: video4UAV, a UPM research team with background in the computer vision and automatic control fields and with a large experience in industrial oriented applications.
This team's vision is to provide unmanned systems with autonomy by exploting the most powerful sensor. i.e. vision.
Vision is a powerful sense, plenty of information that can be extracted to be used for on-line and off-line decisions. Unmanned Aerial Vehicles (UAV) are ready to step in the civil applications arena, including a wide range of applications, such as security, environmental, agricultural, imaginary, mapping, monitoring and inspection.
More information at: http://vision4uav.com/
Source: vision4UAV website