"Broken windows" in 3D model of building despite many overlapping photos

Hi all, first time poster. Hoping someone can help me with a 3D model of a small building I’ve been struggling with. I flew a DroneDeploy double grid mission withe P4P at 100 feet, 65% angle resulting in about 135 images. That part seems fine. I then manually took about 500 closeup elevation images (see sample below). I’ve run these through WebODM many times – default settings, then changing various parameters one at a time as suggested by multiple posts here. Now with all the suggestions implemented I’m still experiencing the exact same issue. Here’s what I used for the last run:

auto-boundary: true, camera-lens: brown, depthmap-resolution: 1600, feature-quality: ultra, mesh-octree-depth: 12, mesh-size: 300000, min-num-features: 20000, pc-geometric: true, pc-quality: ultra, texturing-data-term: area, use-3dmesh: true

Same results with texturing-data-term: gmi, camera-lens: auto, and other defaults.

The photos seem clear and there are many overlapping photos of the problem areas, at various angles. Can someone tell me what I’m missing? Thanks so much in advance!

(Top, two of several photos of problem area. Bottom, final mesh.)

1 Like


--depthmap-resolution is superseded by --pc-quality, so don’t use both, just use --pc-quality.

--pc-geometric might reduce total pointcloud coverage, though it should help keep the pointcloud more “tight” to built features. Similarly, you might want to try with --pc-sample 0 as well.

Fundamentally, however, reconstructing highly specular materials like glass is difficult for photogrammetry, so things might never be perfect in reconstruction.

1 Like

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.