Introduction
Figure 1
Bernard de Go Mars under Public Domain © from
[Wikimedia] (https://commons.wikimedia.org/w/index.php?curid=25846)
Figure 2
Bernard de Go Mars under Public Domain © from
[Wikimedia] (https://commons.wikimedia.org/w/index.php?curid=25846)
Process Overview
Figure 1
Feature points in photograph of building © Lukas
Mach at English
Wikipedia
Figure 2
Édifice Shaughnessy, 401-407, rue McGill,
Montréal © Jeangagnon at Wikimedia
Figure 3
Vase by Jersey Glass Company of George Dummer
(MET, 20.48.1) © Metropolitan Museum of Art at Wikimedia
Figure 4
Silver mugs created by Adrian Bancker
(1703-1772) between 1731-1750. Currently held by the Museum of the City
of New York. © Adrian Bancker at Wikimedia
Figure 5
View of features matched by Metashape
photogrammetry software on a dataset of a coloured carboard box. Blue
lines display valid matches, and red lines display invalid
matches.
Figure 6
Figure 7
Software computes 3D points describing the scene
geometry © ZooFari in Wikimedia
Figure 8
Point cloud projected by images
Figure 9
Point cloud projected by images
Figure 10
Triangulated point cloud projected by
images
Figure 11
Zooming into the triangles of the 3D model
Photogrammetry Setup
Figure 1
Depth-of-field
Figure 2
Best practice to photograph facades. DO NOT take
a panorama image of a facade. DO walk along the facade taking
overlapping pictures.
Figure 3
Best practice to photograph rooms or closed
spaces. DO NOT take various panorama images of the room. DO walk around
the room taking overlapping pictures.
Figure 4
Best practice to photograph objects. DO NOT take
pictures without overlap. DO walk around the object taking overlapping
pictures.
Figure 5
12 cm Marker under wooden horse object
Figure 6
Shadows created by the sunlight on Saint Viktor
of Xanten Church, Dülmen, North Rhine-Westphalia, Germany, Public
domain, Dietmar Rabich , under CC BY-SA 4.0,
via Wikimedia
Commons
Figure 7
Overcast lighting on Statue of Queen Victoria,
Brighton
Figure 8
Static camera / move object setup
Figure 9
Photo of setup without object
Figure 10
Diffused box for static objects
Figure 11
Balkan Heritage Field School (photogrammetry
course) at Stobi, Ivan.giogio, under CC BY-SA 4.0,
via Wikimedia
Commons
Figure 12
As the visualisation shows, the digital
photographs in this setup have a repetitive structure
Figure 13
Static object / move camera setup
Figure 14
As the visualisation shows, the digital
photographs in this setup are more organic, as the photographer moves
taking more or less pictures when required
Software Workflow
Figure 1
Image from photogrammetry acquisition
Figure 2
Example of image showing the mask which is
loaded into the software
Figure 3
Sparse point cloud generated by 3DFlow ZEPHYR
software
Figure 4
Dense point cloud generated by 3DFlow ZEPHYR
software
Figure 5
3D model generated by 3DFlow ZEPHYR
software
Figure 6
