70 epochs, because:
(i) I changed the frist conv layer in backbone, so I need train all backbone(not same as the original cascade rcnn which freezes the frist block in backbone)
(ii) I did not add more anchor to adapt the long strip target
so it needs more training iters to converge
70 epochs, because: (i) I changed the frist conv layer in backbone, so I need train all backbone(not same as the original cascade rcnn which freezes the frist block in backbone) (ii) I did not add more anchor to adapt the long strip target so it needs more training iters to converge