Ground sample distance explained

In remote sensing, ground sample distance (GSD) in a digital photo of the ground from air or space is the distance between pixel centers measured on the ground. For example, in an image with a one-meter GSD, adjacent pixels image locations are 1 meter apart on the ground.[1] GSD is a measure of one limitation to spatial resolution or image resolution, that is, the limitation due to sampling.[2]

GSD is also referred to as ground-projected sample interval (GSI) and is related to the ground-projected instantaneous field of view (GIFOV).[3]

See also

References

  1. Web site: Frequently Asked Questions: What Is Ground Sample Distance? . NZ Aerial Mapping Ltd . 2009 . 2009-07-25 . https://web.archive.org/web/20181129164335/http://www.nzam.com/ . 2018-11-29 . dead .
  2. Book: Surveillance and Reconnaissance Imaging Systems: Modeling and Performance Prediction . Jon C. Leachtenauer and Ronald G. Driggers . Artech House . 2001 . 978-1-58053-132-0 . 30–31 .
  3. Book: Encyclopedia of Optical Engineering . Ronald G. Driggers . CRC Press . 2003 . 978-0-8247-4251-5 . 1392 .

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