About "these potential overlaps between patterns"

[Richard Young]

According to the challenge website, it says that "these six patterns are stored separately as binary masks due to potential overlaps between patterns. Users are free to decide how to use these annotations."

So why does "these potential overlaps between patterns" represent in realistic scenarios? It is error from annotators or these multi-label situation happens in realistic agricultural scenarios?

[Hao Sheng]

I believe it is the later. 

[agriculture-vision]

Hi Richard,

Thank you for your question.

This is indeed a scenario that happens in real life. Contrary to common objects/scenes, multiple anomaly patterns can overlap in a farmland image. A straightforward example is a weed cluster region covered by cloud shadow. Since both are patterns important to the agriculture-vision studies, we intend to retain both annotations, which result in label overlaps.

As mentioned in our evaluation metric page, we will consider a pixel prediction as correct if it matches any of the ground truth labels.

The Agriculture-Vision Team