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mapillary / OpenSfM

Open source Structure-from-Motion pipeline
https://www.opensfm.org/
BSD 2-Clause "Simplified" License
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global reconstruction #974

Open whulc opened 1 year ago

whulc commented 1 year ago

I tried to use opensfm to reconstruct some images takes by a car camera with accurate GPS. As the number of images is quite large, it takes a lot of time to obtain the result. I have also tried to split the dateset into pieces and used align submodels to merge them, but there are some error in the connecting parts. So, is it possible to use opensfm to do global reconstruction like openmvg?

fabianschenk commented 1 year ago

Hi @whulc,

Make sure to have enough overlap when splitting the dataset. OpenSfM is slow when reconstructing more than a few hundred images.

whulc commented 1 year ago

Thanks for your reply. Split the dateset did reduce the run time. Besides, accurate GPS and yaw angle for the image are given, I have already set the matching gps distance parameter, are there other parameters or tricks to speed up the process?.