IndexError: list index out of range

[Lwy-1998]

I try to run generate_dynamic_masks.py and it looks like the segment fileis missing seg = self.__class__.segment_read(segments_list[i])

我装了好久的环境，环境已经能在droid-slam上正常运行，也配置了panopticapi-0.1这个包。 我debug了一下，这里越界好像是因为没有加载到segment的数据，但是我并没有找这个数据在哪里。。。 请问一下这里segment应该在哪里生成呢？

(droidslam) lwy@lwy-WS:~/research/PVO/tools/datasets$ python generate_dynamic_masks.py 
['Scene18', 'Scene20', 'Scene06', 'Scene02', 'Scene01']
cache_path:  /home/lwy/research/PVO/VO_Module/droid_slam/data_readers/cache/VKitti2.pickle
Building VKitti2 dataset
  0%|                                                                                                               | 0/5 [00:00<?, ?it/s]True
True
True
True
True
100%|██████████████████████████████████████████████████████████████████████████████████████████████████████| 5/5 [00:00<00:00, 122.42it/s]
Reserving /home/lwy/research/PVO/datasets/Virtual_KITTI2/Scene02 for validation
Reserving /home/lwy/research/PVO/datasets/Virtual_KITTI2/Scene06 for validation
Reserving /home/lwy/research/PVO/datasets/Virtual_KITTI2/Scene18 for validation
Reserving /home/lwy/research/PVO/datasets/Virtual_KITTI2/Scene20 for validation
Dataset vkitti2 has 445 images
Traceback (most recent call last):
  File "generate_dynamic_masks.py", line 28, in <module>
    for i_batch, item in enumerate(train_loader):
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 521, in __next__
    data = self._next_data()
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 1203, in _next_data
    return self._process_data(data)
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 1229, in _process_data
    data.reraise()
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/_utils.py", line 434, in reraise
    raise exception
IndexError: Caught IndexError in DataLoader worker process 0.
Original Traceback (most recent call last):
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/utils/data/_utils/worker.py", line 287, in _worker_loop
    data = fetcher.fetch(index)
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 49, in fetch
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 49, in <listcomp>
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/lwy/miniconda3/envs/droidslam/lib/python3.8/site-packages/torch/utils/data/dataset.py", line 308, in __getitem__
    return self.datasets[dataset_idx][sample_idx]
  File "../../VO_Module/droid_slam/data_readers/base.py", line 185, in __getitem__
    seg = self.__class__.segment_read(segments_list[i])
IndexError: list index out of range

[a541203686]

我是用1_generate_image_info.py这个代码里生成的panoptic_gt_id文件夹下的文件，需要修改一下路径

[ForLoveandPeace]

@a541203686 Hi，你好，我目前遇到题主这个问题，虽然明白是路径上的问题，但还不太清楚该怎么改，可以给一些详细修改信息吗，感谢

[DavidYan2001]

请问题主解决了吗

[Pranjal-g083]

Go to the following file: VO_Module/droid_slam/data_readers/vkitti2.py At lines 91-92, you need to change the path for panoptic_gt_id folder. The exact replacement is: segments = sorted( glob.glob(osp.join("datasets/Virtual_KITTI2/ALL_15-deg-left", 'panoptic_gt_id/*.png')))

Hope this helps

[byronsit]

Go to the following file: VO_Module/droid_slam/data_readers/vkitti2.py At lines 91-92, you need to change the path for panoptic_gt_id folder. The exact replacement is: segments = sorted( glob.glob(osp.join("datasets/Virtual_KITTI2/ALL_15-deg-left", 'panoptic_gt_id/*.png')))

Hope this helps

好像不work，我替换掉了还是一样的错误

[byronsit]

经过实验，因为我kitti数据没下载全。 下载全后，额外加上

segments = sorted( glob.glob(osp.join("datasets/Virtual_KITTI2/ALL_15-deg-left", 'panoptic_gt_id/*.png')))

就work了。 起码他跑起来了……

然后又再其他地方报了out of range错误hhh