Handling repetitive structures in theia about theiasfm HOT 3 CLOSED

It depends a bit on which position estimation solver you are using. Using the least unsquared deviations solver is usually quite robust. If you are using the nonlinear solver then you can increase position_estimation_min_num_tracks_per_view to 6 or 10, or adjust position_estimation_robust_loss_width to be 0.01 or smaller. Also, increasing the number of retriangulation iterations for global SfM should help, though this will increase the runtime by a lot.

You can also try to adjust the 1DSfM filter by adjusting these options: https://github.com/sweeneychris/TheiaSfM/blob/master/src/theia/sfm/reconstruction_estimator_options.h#L145 See the documentation here for an explanation of these params: https://github.com/sweeneychris/TheiaSfM/blob/master/src/theia/sfm/filter_view_pairs_from_relative_translation.h#L47

from theiasfm.

Can we close the issue if this is solved?

from theiasfm.

Yes , close the issue. I am getting good enough results for repetitive structures , to similar quality as incremental SFM.

from theiasfm.