alignment function

[sli057]

Hi, thanks for the awesome work. I look through the code and there seem to be no codes accounting for the alignment function shown in equation 3 in the paper. Alignment function is used to map transformations on the object to transformations on the perturbation (e.g. if the object is rotated, the perturbation is rotated as well.) Could you clarify this?

[evtimovi]

I believe this is what you need: https://github.com/evtimovi/robust_physical_perturbations/blob/master/imagenet-attack/attack_util.py#L198

Note that we did not use these transformations for the gtsrb and the lisa-cnn.

[jinyugy21]

Hi, thanks for your wonderful work and the previous answers! But I still have a problem, that is, if the alignment function Ti described in equation 3 in the paper is not used in Lisa-CNN, how does the algorithm ensure that a specific perturbation can adapt to the scene with different distances and angles in Table 1? Thank you for any help you can offer.

[zdaiot]

Hi, thanks for your wonderful work and the previous answers! But I still have a problem, that is, if the alignment function Ti described in equation 3 in the paper is not used in Lisa-CNN, how does the algorithm ensure that a specific perturbation can adapt to the scene with different distances and angles in Table 1? Thank you for any help you can offer.

Hello, Have you solved this problem? I have the same doubts. @jinyugy21