Upload images
You have your images in the bag. Now it is about handing them over to Roofy and choosing the right processing quality.
How to upload
- 1
Sign in and create a new project
In the dashboard, click New project and enter the building details. What you fill in is up to you. An address helps you find it later but is not required.
- 2
Hand over images via drag and drop
Drag all JPEG images into the upload field. The images can come directly from the SD card or have been transferred to your computer first. Either way works. Alternatively, add them via the file picker.
- 3
Choose quality
For a plain roof survey, 2D is enough: fast and sufficient in the vast majority of cases. If you want a 3D model with facades, choose 3D Classic (or 3D Alternative, see below).
- 4
Start upload and wait
Stay on the page until 100 % is reached. On a browser reload the upload has to be restarted.
- 5
Start processing
Once all images are uploaded, click Start processing. Roofy then begins the computation. You can close the page from this point on. An email lets you know as soon as the result is ready.
EXIF data. Straight from the SD card
Roofy only processes images with valid GPS-EXIF coordinates. These are lost on many transfer paths.
WhatsApp / Telegram / messengers strip EXIF
These services compress images and remove all EXIF data in the process. Images sent through them are rejected by the upload.
Upload directly from the SD card
Insert the card into your computer or use the DJI Fly app sync. Email attachments or iCloud are fine as well. What matters is that GPS coordinates are preserved.
Check GPS lock before takeoff
Without a GPS lock (green status in the DJI Fly app) the drone does not save coordinates. Pre-flight item 2 in the drone guide covers this.
Choose a mode: 2D, 3D Classic or 3D Alternative
On upload you choose whether you want a fast 2D survey or an interactive 3D model. The choice affects processing time and what you get in the end.
2D
Fast, no 3D model
Fast survey from the orthophoto: areas, edges and heights. Enough for the vast majority of roof surveys.
3D Classic
3D model, proven method
Additionally an interactive 3D model with the proven calculation. Requires facade images (see the 3D facade guide).
3D Alternative
If 3D Classic does not convince
Like 3D Classic, but with a different calculation. Often copes better with mixed captures (including facades). Re-upload needed.
Rule of thumb: for a plain roof survey, 2D is enough. If you want a 3D model with facades, choose 3D Classic. If the result does not convince you, upload again and choose 3D Alternative.
What happens during processing
ODM reconstructs a 3D model from your 2D images. You can close the browser in the meantime. Roofy notifies you automatically (see email notification).
- Feature detection: each image is scanned for distinctive points
- Matching: identical points are linked across multiple images. This is why overlap matters
- Bundle adjustment: the 3D positions are reconstructed from the point correspondences
- Orthophoto and elevation map: the 3D model produces the two maps you measure with
Email notification
Once processing is finished, Roofy sends you an email with a direct link to the project. You do not have to keep the browser open or check yourself. If there is an error you also get an email with a hint whether a second attempt makes sense (for 3D models, with 3D Alternative).
Next step
Measure the roof
Once the email with the finished model arrives, it is time to measure.