In remote sensing, ground sample distance (GSD) in a digital photo (such as an orthophoto) 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. GSD is a measure of one limitation to spatial resolution or image resolution, that is, the limitation due to sampling.

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Webdistance between the satellite and its target, usually 500km or greater. For an optical system the ground resolved distance (GRD) is proportional to this distance (for a fixed aperture diameter), for a communication system the power required is proportional to this distance squared (for a WebMar 16, 2015 · Photo interpreters often talk about resolution in terms of ground resolved distance which is the smallest normal contrast object that can be identified and measured. Resolution 11 12. Resolution 12 13. Size of objects in an image is a function of scale. Size can be important in discriminating objects and features (cars vs. trucks or buses ... red heart log cabin afghan pattern

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WebThe ground resolved distance (GRD) of an imaging sensor, i.e. the size of the smallest element distinguishable on acquired imagery, is one of the most important sensor quality … WebA measure of the spatial resolution of a remote sensing imaging system, it is often expressed as dimensions of visible ground area, for some known sensor altitude. [8] [9] Single pixel IFOV is closely related to concept of resolved pixel size , ground resolved distance , ground sample distance and modulation transfer function . Web• Ground Resolved Distance (GRD) (VOF•I β) • Ground-projected IFOV (D) D = H x β • Ground Sampled Distance (GSD) • GRD ≈2 x GSD ≈2 x D Mixels • Pure & composite … ribery familie