Means to verify remote sensed or mathematically calculated data with actual measured field data.
Verification at the site of what has been observed and/or measured from aircraft, satellites, other aerial platforms, aerial photographs, or maps.
Measurements or observations made on the ground for the purpose of verifying interpretations made from aerial photography or remote sensing.
Data which are acquired from field checks, high-resolution remote sensing data, or other sources of known data. Ground truth is used as the basis for making decisions on training areas and evaluating classification results. Menu
To verify the correctness of remote sensing information by use of ancillary information such as field studies.
the actual facts of a situation, without errors introduced by sensors or human perception and judgment. For example, the actual location, orientation, and engine and gun state of an M1A1 tank in a live simulation at a certain point in time is the ground truth that could be used to check the same quantities in a corresponding virtual simulation. Or the actual direct and diffuse solar irradiance at a terrain point is the ground truth that could be used to check the same quantity in a corresponding virtual simulation.
The information gathered about the Earth's surface at the same time as a satellite pass is made, i.e. in order to interpret and calibrate remotely sensed observations.
data collected on the ground to verify mapping from remote sensing data such as air photos or satellite imagery.
Term coined for data and information obtained on surface or sub-surface features to aid with the interpretation of remotely sensed data.
Geophysical parameter data, measured or collected by other means than by the instrument itself, used as correlative or calibration data for that instrument data. It includes data taken on the ground or in the atmosphere. Ground truth data are another measurement of the phenomenon of interest; they are not necessarily more "true" or more accurate than the instrument data. Source: EPO.
is the collecting of information on Earth's surface at the same place and time as a remote sensor gathers data. Ground truth information is used to interpret and calibrate remotely sensed data from satellites.
Definition of Earth surface conditions through direct measurements or visual inspections for calibration or evaluation of remote sensing observations made from satellites or aircraft.
The on-site gathering of data at a particular location, for the purpose of calibrating and interpreting remotely acquired data.
geological data obtained by direct examination of features on the ground in order to verify information gathered by satellite or other airborne means. [AHDOS
Any measurement of an observed quantity that can be used to validate or verify a new (often remote sensing) measurement or technique.
For other uses please see Ground Truth (disambiguation)
The Ground Truth is a documentary film on US Iraq War veterans and their experiences while returning to the United States. This 2006 film was directed by Patricia Foulkrod and in association with Operation Truth, the organization formed by Iraq War veteran Paul Rieckhoff.
