The Coastal Ecosystem Mapping and Media Viability Project

Figure 6. Placement of the GCPs within a mission area

For our purposes the project decided to use large plastic sheets that would be identifiable from the drone imagery for the GCP. Prior to going into the field the decision was made to test two different types of sheets for our GCPs. Although Pix4D recommended using 200 cm x 200 cm sheets as GCPs as this is optimal for being visible at all altitudes, the denseness of the mangrove canopy would restrict access with such a large GCP. A second type of GCP that is 100cm x 100cm was also created to test its effectiveness that would be easier to transport through the dense mangrove.

The Coastal Ecosystem Mapping and Media Viability Project

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