SCO-AG-ARBRO-western-cemetery-chapel TEST-SFM-1

Description

4822/5000 photos, Sparse generated with COLMAP in 305 minutes on R9 3900XT w/ GTX 1660 Super: * F-Ext 15 mins * F-Mat 25 mins * Recon 265 mins --- **Pre-COLMAP preparation** The photos in this set were captured with the same sensor but with a zoom lens at different values of zoom (so different focal lengths). In COLMAP the SfM performs better when working with Shared Intrinsics, or failing that, Shared Intrinsics per sub-folder. So these photos were separated into folders w.r.t. focal length, e.g. see https://www.youtube.com/watch?v=X-sv3Vvf2es --- **COLMAP settings** * F-E: performed in GUI, default settings incl. Camera Model SimpleRadial, except 'Shared per sub-folder' enabled and max_num_features lowered to 1024 * F-M: GUI, default, vocabtree 256k (using the pre-trained provided by Johannes) * Recon.: performed in Command Line using hierarchical_mapper (vid tut for fellow non-coders imminent!). --- Then optionally, import to Metashape for Dense, e.g. see https://www.youtube.com/watch?v=Fw4BIGGeCC4