Back traffic sign label.

[angelmc]

Good morning,

I am working on models to detect and classify traffic signs. I have read the paper referring to the dataset https://arxiv.org/pdf/2305.02008v2, and in figure 7 there is a TrafficSign_Back. My question is the following: Is there any attribute or property in the annotations that allows to know which Traffic Signs correspond to back traffic signs?

Thank you very much in advance.