Figure 18. SfM photogrammetry model of a panel in Monte Faro (Valença, Portugal) highlighting the three-dimensionality of the circular motifs and their relationship with rock surface.
Photograph, 3D model and rendering by Joana Valdez-Tullett.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.