Photogrammetry setup to record the stone surface - Application of Forensic Photogrammetry and 3D Modelling to Improve Epigraphic Reading: Study of the Roman Altar of Gravesano (Ticino, Switzerland)

<p>PDF document with lighting and camera setup to record the surface of the stone with multi-image photogrammetry.</p> <p>Page 1: Stone surface, images and camera positions</p> <p>Page 2: Setup of the raking light source</p> <p>Page 3: Adjustment of the angle of the light source to&nbsp;the stone surface.&nbsp;A slight upward angle relative to the horizon is chosen in the plane of the stone in order to keep an oblique incident light and project shadows in each character&rsquo;s depression (see green long circular green arrow). The second angle is adjusted from the surface of the stone in order to define each character&rsquo;s depression with sharp shadows.</p> <p>Page 4: Stone surface, images and camera positions with an the camera projection of the bottom right image outlined in red.</p>