Abstract
The determination of the best period for image acquisition is of major importance for research in aerial and remote sensing archaeology. This will facilitate enhanced research results by enabling the iden ti fi cation of large numbers of traces that would be otherwise unidentified. To determine the best period for satellite image acquisition in the extensive archaeological plain of Philippi (Eastern Macedonia, Greece), a systematic observation of change of intensity over time, at known places of buried archaeological structures, was performed. A low-cost image acquisition UAV was developed, which was used to acquire images every month for the period of one year.
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