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Learn what Ground Control Points (GCPs) are, how they are used to geo-reference Landsat images, and how to access and update them. Find out the coordinate reference system, metadata fields, and software considerations for GCPs.
Dec 3, 2019 · Ground control points (or GCPs) are points on the ground with known coordinates. In an aerial mapping survey, GCPs are points which the surveyor can precisely pinpoint: with a handful of known coordinates, it’s possible to accurately map large areas.
Learn what ground control points (GCPs) are, how to create them, and how to use them for accurate drone mapping. This guide covers the basics of GCPs, their placement, measurement, and processing with WebODM cloud software.
Learn how to use ground control points (GCPs) to improve the accuracy of your drone maps. Find out what GCPs are, how to place them, and what drones and payloads are best for surveying.
Mar 23, 2021 · Learn how ground control points (GCPs) help ensure absolute location accuracy in aerial surveys. Find out the difference between GCPs and checkpoints, and how drone type and conditions affect your GCP needs.
May 25, 2022 · Learn what ground control points (GCPs) are, how to place them and why they are important for accurate drone mapping. Find out the requirements, rules and tips for using GCPs and how they relate to ground sample distance and manual tie points.
A ground control point is a large marked target on the ground, spaced strategically throughout your area of interest. In this map, surveying company Landpoint bypassed a traditional land survey and saved over 80 man hours by using GCPs in their drone map. . When and Why Are GCPs Important?
