As I struggle to find any literature online about this, I wanted to create a discussion that other would be able to learn from.

My question is inspired from a Yolo github issue.

In this example we have 2 objects, here a plate and an egg, with one object being inside the other one.

The question is how to annotate the plate (aka the outer object).

1. Annotate full contour of outer object. Some pixels belong to 2 classes
2. Make a little bridge to the inner object so that the contour of the outer object exclude the inner object.

This question arose while using Yolo but can be extended to other instance segmentation models.

Any more information regarding good practices in instance segmentation is more then welcome.

As I struggle to find any literature online about this, I wanted to create a discussion that other would be able to learn from.

My question is inspired from a Yolo GitHub issue.

In this example we have 2 objects, here a plate and an egg, with one object being inside the other one.

The question is how to annotate the plate (aka the outer object).

1. Annotate full contour of outer object. Some pixels belong to 2 classes.
2. Make a little bridge to the inner object so that the contour of the outer object excludes the inner object.

This question arose while using Yolo but can be extended to other instance segmentation models.

Any more information regarding good practices in instance segmentation is more than welcome.