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WeijingShi / Point-GNN

Point-GNN: Graph Neural Network for 3D Object Detection in a Point Cloud, CVPR 2020.
MIT License
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ValueError: not enough values to unpack (expected 7, got 0) #87

Open shxzhao opened 2 years ago

shxzhao commented 2 years ago

When I retrain the model without the Pre training model，this error occurred ! I want to know how to solve it, can you give me some advice. Looking forward to your reply.

Traceback (most recent call last): File "/home/rtx-3090/anaconda3/envs/tensorflow/lib/python3.6/multiprocessing/pool.py", line 119, in worker result = (True, func(args, kwds)) File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/train.py", line 85, in fetch_data cam_rgb_points, box_label_list = aug_fn(cam_rgb_points, box_label_list) File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/models/preprocess.py", line 468, in multiple_aug cam_rgb_points, labels, aug_config['method_kwargs']) File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/models/preprocess.py", line 301, in random_box_shift appr_factorboxes_3d_to_corners(label_boxes)) File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/models/nms.py", line 35, in boxes_3d_to_corners x3d, y3d, z3d, l, h, w, yaw = box_3d ValueError: not enough values to unpack (expected 7, got 0) """

The above exception was the direct cause of the following exception:

Traceback (most recent call last): File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/train.py", line 542, in = data_provider.provide_batch(batch_frame_idx_list) File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/train.py", line 482, in provide_batch batch_list.append(self.provide(frame_idx)) File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/train.py", line 475, in provide return self.async_load(frame_idx) File "/home/rtx-3090/PycharmProjects/Point-GNN-master/Point-GNN/train.py", line 447, in async_load data = self._results[frame_idx].get() File "/home/rtx-3090/anaconda3/envs/tensorflow/lib/python3.6/multiprocessing/pool.py", line 644, in get raise self._value ValueError: not enough values to unpack (expected 7, got 0)

WeijingShi commented 2 years ago

Hi @shxzhao,

Thanks for your interest in our work.

It seems one of your label_boxes is empty. But the label_boxes should not have empty boxes as it is generated by: https://github.com/WeijingShi/Point-GNN/blob/48f3d79d5b101d3a4b8439ba74c92fcad4f7cab0/models/preprocess.py#L296 label_boxes should be either empty or an N by 7 arrays.

Did you modify the code or dataset?

Thanks,