|CURRENT & HISTORICAL PHOTOGRAMMETRY
Environmental Research, Inc. utilizes both softcopy and analytical stereoplotting
techniques, providing a wide range of photogrammetric products generated from
current and historical aerial photographs
ERI generates topographic maps from aerial images
captured with precision-mapping cameras. Our photogrammetric services range
from high-altitude mapping to 1"=20´ precise engineering
mapping, including low altitude helicopter-based mapping. In addition to our stand-alone photogrammetric products, we also integrate
photogrammetric data into our imagery analysis projects.
We utilize state-of-the-art stereoplotting instruments and VrTwo SoftCopy
Systems to capture planimetric and topographic data. Final editing on photogrammetric
projects is performed with VrOne and CadMap software.