facebookresearch
Strange sequence index produced in VKittiDataset
I am trying to run the training on KITTI dataset. It went nice for ~800 steps, but after that seq_index variable started taking some strange values:
INFO 2025-08-28 15:53:58,237 checkpoint.py: 65: Saving checkpoint at epoch 0 to logs/exp001/ckpts/checkpoint.pt
Building dynamic dataloader with epoch: 0
seq_index: 5053
seq_index: 53547
seq_index: 35635
seq_index: 10011
seq_index: 46117
seq_index: 71848
seq_index: 8766
seq_index: 65213
seq_index: 34887seq_index: 52428seq_index: 41347
seq_index: 45132
seq_index: 68160
seq_index: 37497
seq_index: 54747
seq_index: 8195
seq_index: 91255
seq_index should be somewhere in [0,99] range. I am what is the issue
Did you get the number here?
https://github.com/facebookresearch/vggt/blob/059c288227aa00faaf1a4ecf3f4f3be9b40aa467/training/data/datasets/vkitti.py#L110-L116
Hey, I am running into the same error: index out of range. Actually, the index is within the range (0–9). I am getting the number from vggt/training/data/datasets/vkitti.py
it's because the training is False in eval mode and thus the range is not fixed to sequence length
Did you get the number here?
vggt/training/data/datasets/vkitti.py
Lines 110 to 116 in 059c288
if self.inside_random and self.training: seq_index = random.randint(0, self.sequence_list_len - 1)
if seq_name is None: seq_name = self.sequence_list[seq_index]
camera_id = int(seq_name[-1])
yes