What is ground truthing? Give an account of ground truth data collection.

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Ground truthing is the process of collecting direct, in-field observations or measurements to validate and verify the accuracy of remotely sensed data, which has been captured through satellites, aerial photography, or drones. The remote sensing data might provide valuable insights about land use, vegetation, water bodies, or other physical features, but the accuracy of such data must be cross-checked with real-world information. This is where ground truthing plays a critical role by offering firsthand data from the field.

The core purpose of ground truthing is to ensure that the interpretation of remotely sensed images aligns with actual conditions on the ground. It helps to confirm the classification _________ ____ _______ _________ _____ _____ _____ ____________ _____________.
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Degree : PG DIPLOMA PROGRAMMES
Course Name : Post Graduate Diploma in Geoinformatics
Course Code : PGDGI
Subject Name : Remote Sensing and Image Interpretation
Subject Code : MGY 102
Year : 2024