mmdet3d coordinate for gt boxes are xyzlwh, here in CenterFormer, gtboxes[3] should be length not width.

[DezeZhao]

Prerequisite

• I have searched Issues and Discussions but cannot get the expected help.
• I have read the FAQ documentation but cannot get the expected help.
• The bug has not been fixed in the latest version (dev) or latest version (1.x).

Task

I'm using the official example scripts/configs for the officially supported tasks/models/datasets.

Branch

master branch https://github.com/open-mmlab/mmdetection3d

Environment

no

Reproduces the problem - code sample

mmdetection3d/projects/CenterFormer/centerformer/centerformer_backbone.py

Line 662 in 341ff99

width = task_boxes[idx][k][3]

Reproduces the problem - command or script

mmdetection3d/projects/CenterFormer/centerformer/centerformer_backbone.py

Line 662 in 341ff99

width = task_boxes[idx][k][3]

Reproduces the problem - error message

mmdetection3d/projects/CenterFormer/centerformer/centerformer_backbone.py

Line 662 in 341ff99

width = task_boxes[idx][k][3]

Additional information

mmdetection3d/projects/CenterFormer/centerformer/centerformer_backbone.py

Line 662 in 341ff99

width = task_boxes[idx][k][3]

[JingweiZhang12]

@DezeZhao， Hi, thanks for your kind reminder. It's a minor flaw. Fortunately, it has not related to the precision considering the detailed implements among this:

mmdetection3d/projects/CenterFormer/centerformer/centerformer_backbone.py

Line 670 in 341ff99

radius = gaussian_radius(

.
Anyway, could you create a PR to fix it (include here: https://github.com/open-mmlab/mmdetection3d/blob/341ff9980f/mmdet3d/models/dense_heads/centerpoint_head.py#L522)

[DezeZhao]

yeah, I got it later. It is ok if these 2 values corresponding to x and y axis and keep their order.

[selmadeac]

Are you sure this is an issue? length should be larger than width, right?
If i print this in the original implementation it is ok.

if legth>width:
print("TRUE")

[DezeZhao]

In mmdetection3d, gt boxes are organized by xyzlwhr order, and length may not always more than width.