Best practise to label roof (ridges)

[nicojany]

Dear Rectlabel support team

I'm wondering what would be the best approach to label a roof's ridge. I already labelled a lot of roof areas however, I'm not sure what would be best practise to also label the ridges so that later my model would be able to differentiate:

• flat
• gabled
• hip
• other

roof types. So what would be the best technique to highlight what I just draw now manually with my screen capturing tool in pink in RectLabel.

In the end the aim would be that the model identifies the sides of the roof and also the ridge(s).

See pics attached.

Thanks a lot in advance.

Best,
Nico

[ryouchinsa]

Thanks for using RectLabel and giving us your detailed feedback.
For the roof ridge, the line/lane detection can be solved by segmentation models including YOLOv5/v8.

LaneNet-Lane-Detection
https://github.com/MaybeShewill-CV/lanenet-lane-detection?tab=readme-ov-file

1. Label a roof quickly using Create polygon using SAM feature.

2. Label the ridge using Create pixels feature and its brush polygon tool.

3. The pixels mask can be converted to the polygon when exporting the YOLO format.