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General / Microscopic Imaging and Masks for Insects
« on: October 06, 2021, 10:50:22 PM »
Hi!
I'm trying to create a 3D model of a mosquito from photos under a microscope. Since I'm using the "turn-table" photogrammetry method, I took a back-lit photo for every front-lit photo to act as a mask.
Total I have 100 front-lit photos and 100 back-lit photos (masks).
I'm trying this workflow (https://agisoft.freshdesk.com/support/solutions/articles/31000158967-aligning-turntable-photos-with-background-suppression-from-single-mask-in-agisoft-metashape) where I import the masks and use them during the alignment step.
I read that applying the mask to the key point needs a mask on every photo, which is what I have, so I started with this option. After running the alignment, only 7 of my photos/cameras aligned.
So next I tried applying the mask to tie point where I read it works better with only a few representative masks so I choose 6 out of the 100 photos to have masks. After running this alignment, only 3 of my photos/cameras aligned.
To test and make sure I have enough overlap between the photos I tried running the alignment without masks and 100 of the 100 photos/cameras aligned, so the issue is using the masks.
I would greatly appreciate any feedback on whats's going wrong or if I should be using the masks at a different step of the process.
Thank you!
Linden
I'm trying to create a 3D model of a mosquito from photos under a microscope. Since I'm using the "turn-table" photogrammetry method, I took a back-lit photo for every front-lit photo to act as a mask.
Total I have 100 front-lit photos and 100 back-lit photos (masks).
I'm trying this workflow (https://agisoft.freshdesk.com/support/solutions/articles/31000158967-aligning-turntable-photos-with-background-suppression-from-single-mask-in-agisoft-metashape) where I import the masks and use them during the alignment step.
I read that applying the mask to the key point needs a mask on every photo, which is what I have, so I started with this option. After running the alignment, only 7 of my photos/cameras aligned.
So next I tried applying the mask to tie point where I read it works better with only a few representative masks so I choose 6 out of the 100 photos to have masks. After running this alignment, only 3 of my photos/cameras aligned.
To test and make sure I have enough overlap between the photos I tried running the alignment without masks and 100 of the 100 photos/cameras aligned, so the issue is using the masks.
I would greatly appreciate any feedback on whats's going wrong or if I should be using the masks at a different step of the process.
Thank you!
Linden
