OpenDroneMap – Simple Images into 3D
github.com
OpenDroneMap – Simple Images into 3D
1–10 of 43 posts
Re: OpenDroneMap – Simple Images into 3D
#2Interesting point: while the software is free, the web interface (webodm) seems to have a paid service integrated to process the images in the cloud (webodm lighning [1]). Since resource demands seem quite high (lots of RAM for larger image sets) this looks attractive and seems like a good way to finance an open source project.
Re: OpenDroneMap – Simple Images into 3D
#3[deleted]
Re: OpenDroneMap – Simple Images into 3D
#4Are there editors that allow you to manipulate point clouds or ‘digital surface models’? (Not sure what those are) I’d like to use something like this to digitize my property and model changes to it (building, landscaping, etc).
Re: OpenDroneMap – Simple Images into 3D
#5What kind of image quality would one need to get something useful out of this.
Useful :
Create a 3d model of a house with surrounding trees, so I can see the effect of those trees on a planned solar installation.
Or create a 3d model of a garden to see where the sun and shadow are over the course of the year.
Re: OpenDroneMap – Simple Images into 3D
#6Are there editors that allow you to manipulate point clouds or ‘digital surface models’? (Not sure what those are) I’d like to use something like this to digitize my property and model changes to it (building, landscaping, etc).
Re: OpenDroneMap – Simple Images into 3D
#7It would be nice to know how this compares with other open source and commercial photogrammetric offerings.
Free:
- AliceVision https://alicevision.github.io/
- Colmap https://colmap.github.io/
- etc.
Commercial:
- Agisoft Metashape (formerly Photoscan) https://www.agisoft.com/
- Zephyr 3D https://www.3dflow.net/3df-zephyr-pro-3d-models-from-photos/
- Drone deploy https://www.dronedeploy.com/ - etc etc etc
See also:
Re: OpenDroneMap – Simple Images into 3D
#8What kind of image quality would one need to get something useful out of this. Useful : Create a 3d model of a house with surrounding trees, so I can see the effect of those trees on a planned solar installation. Or create a 3d model of a garden to see where the sun and shadow are over the course of the year.
The better the photograph, the better the output quality. Photogrammetric output will always have noise. Some materials don't really contain any surface details that the algorithms could use to attach feature points to, so they will be blank. Large white walls and large windows
are especially difficult.
Don't crop the photos. Prefer slight underexposition. For each detail you want to capture, have it visible at least in three photos. Capture photos from different position (ie. rather move yourself than just turn the camera) with at least 30% - 50% overlap between photos.
You can find lots of tutorial in the internet. Search term that hits gold is 'photogrammetry tutorial'. For example:
https://medium.com/realities-io/getting-started-with-photogr...
If you just want to try out the technique, I suggest you download the free test version of Zephyr 3D. You can just give it a bunch of photos and it does a fairly sane ops with the default options.
https://www.3dflow.net/3df-zephyr-pro-3d-models-from-photos/
If you like it, you can start experimenting with free and commercial tools including the one in the topic of this thread (see my other post in this thread for some other photogrammetric tools).
If you have a large set of photos you will start to need a fairly beefy computer with tens of gigs of RAM the least. But, you can get pretty nice results for e.g. just a single house with just a regular modern desktop PC.
Re: OpenDroneMap – Simple Images into 3D
#9Re: OpenDroneMap – Simple Images into 3D
#10Are there editors that allow you to manipulate point clouds or ‘digital surface models’? (Not sure what those are) I’d like to use something like this to digitize my property and model changes to it (building, landscaping, etc).