nga

Hierarchical Urban and Natural Terrain Exploitation and Reasoning

Photos and videos taken from cell phones, laptop cameras, and other devices often contain critical information about the locations of the people, buildings, and objects seen in the imagery. The widespread availability of these images and videos has greatly expanded the volume of information requiring labor-intensive analyst review, even though quick assessment may be necessary for certain operations. Because of the lack of geolocalization tools for metadata-free images and videos, analysts must manually geolocate these images and videos by visually comparing them with terrain models and overhead images.