The geometric characterization involves understanding the processes by which pixel coordinates within an image can be mapped to known locations on the ground. Generally, this involves the use of well-surveyed, photo-identifiable targets placed within a scene. Geometry test sites are core to any Quality Assurance/Quality Control (QA/QC) strategy. These sites can be useful for evaluating geodetic accuracy of sensors.
The Geometry Sites are currently divided into two broad categories: High Resolution and Medium Resolution. To view these sites, click on a tab below.
U.S. Department of the Interior |
U.S. Geological Survey
