GFNet.md

Robo3D Benchmark

The following metrics are consistently used in our benchmark:

• Mean Corruption Error (mCE):

  • The Corruption Error (CE) for model $A$ under corruption type $i$ across 3 severity levels is: $\text{CE}_i^{\text{Model}A} = \frac{\sum((1 - \text{mIoU})^{\text{Model}A})}{\sum((1 - \text{mIoU})^{\text{Baseline}})}$.
  • The average CE for model $A$ on all $N$ corruption types, i.e., mCE, is calculated as: $\text{mCE} = \frac{1}{N}\sum\text{CE}_i$.

• Mean Resilience Rate (mRR):

  • The Resilience Rate (RR) for model $A$ under corruption type $i$ across 3 severity levels is: $\text{RR}_i^{\text{Model}A} = \frac{\sum(\text{mIoU}^{\text{Model}A})}{3\times (\text{clean-mIoU}^{\text{Model}A})} .$
  • The average RR for model $A$ on all $N$ corruption types, i.e., mRR, is calculated as: $\text{mRR} = \frac{1}{N}\sum\text{RR}_i$.

GFNet

SemanticKITTI-C

Corruption	Light	Moderate	Heavy	Average	$\text{CE}_i$	$\text{RR}_i$
Fog	46.57	46.33	33.23	42.04	131.34	66.73
Wet Ground	59.30	55.89	54.53	56.57	94.39	89.79
Snow	55.76	56.81	57.57	56.71	92.66	90.02
Motion Blur	60.25	58.54	56.97	58.59	61.73	93.00
Beam Missing	60.91	57.01	52.93	56.95	98.56	90.40
Crosstalk	22.59	16.23	12.61	17.14	198.90	27.21
Incomplete Echo	58.70	55.55	51.43	55.23	98.24	87.67
Cross-Sensor	58.40	52.70	37.35	49.48	93.64	78.54

• Summary: $\text{mIoU}_{\text{clean}} =$ 63.00%, $\text{mCE} =$ 108.68%, $\text{mRR} =$ 77.92%.

References

@inproceedings{qiu2022gfnet,
  title = {GFNet: Geometric Flow Network for 3D Point Cloud Semantic Segmentation},
  author = {Haibo Qiu and Baosheng Yu and Dacheng Tao},
  booktitle = {Transactions on Machine Learning Research},
  year = {2022},
}