Add ODM data processor

[pierotofy]

Hello 👋 ,

this PR adds support for converting ODM (https://github.com/OpenDroneMap/ODM) datasets to nerfstudio format.

Usage:

1. Process a dataset using ODM

$ ls /path/to/dataset
images
odm_report
odm_orthophoto
...

2. Convert to nerfstudio format.

ns-process-data odm --data /path/to/dataset --output-dir {output directory}

3. Train as usual.

Results:

Dataset: https://hub.dronedb.app/r/odm/brighton-beach

2023-10-12_161141.mp4

Dataset: https://github.com/pierotofy/dataset_banana

Hope this can be useful to others. Let me know if changes are needed. 🙏

[tancik]

Cool! LGTM

[tancik]

Once you fix the type error, I think its good to be merged

[pierotofy]

Should be good to go, thanks for the review @tancik ! 🙏