I’m pretty new to this Photogrammetry game but really enjoying the science behind it.
I thought I would start out small and modelled a porcelain child’s lamp quite successfully and then I thought I would have a mini practice on what I really wanted to use Reality Capture for and that’s outside scans of buildings and land marks.
- So I thought I start small and just set up 2 lines of 3 chairs in my backyard.
- Then using a DJI Mavic Mini Done I ran a straight down view over the top taking about 45 images
- Then using the Drone I did a rough circle around the chairs at about waist height
- Then lower again
- Then I got out my Olympus EM-1 Mk2 with 24mm equivalent (same roughly as the drone) an took a heap of ground level and knee height shots.
My problem is whenever I try and align the images, I get a great mix of drone and DSLR shots covering the scene in one component of about 208 images as here…
but I get another component of 45 shots consisting solely of the straight down drone shots and excluding everything else. What’s more that component is at 45 degrees to the other one….
This is the best alignment I can get using Max Features per image 80000 and Preselector Features 40000, Low Overlap and Ultra Sensitivity (anything other than ultra is worse i.e has more components)
If I drop in Control Points I can get one component but for reasons I can’t explain the 45 degree tilt of the straight down Drone shots is retained turning it into one big mixed up mess!
I’m trying to treat this as a one off thing where I can’t go back and retake or add photos. Is there any suggestions as to how I can get these two to join seamlessly?
Also I notice all the drone shots have residuals is this part of my problem?
Any help grateful received….
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