conda create -n occ python=3.10
conda activate occ
pip install torch==2.1.2 torchvision==0.16.2 torchaudio==2.1.2 --index-url https://download.pytorch.org/whl/cu118
pip install -U openmim
mim install mmcv==2.1.0
conda install mpi4py
pip install -U transformers==4.38.1 wandb==0.16.3 einops pycocotools shapely scipy terminaltables importlib peft==0.8.2 mat4py==0.6.0
conda install importlib-metadata

from transformers import SamModel
import os

hf_pretrain_name = "facebook/sam-vit-large"

cache_dir = f"{os.path.basename(hf_pretrain_name).replace('-', '_')}"
os.makedirs(cache_dir, exist_ok=True)

model = SamModel.from_pretrained(hf_pretrain_name, use_safetensors=False)
model.save_pretrained(cache_dir, safe_serialization=False)

# Single GPU, PIDray-A
CUDA_VISIBLE_DEVICES=0 bash ./tools/dist_train.sh configs/occlusion/pid.py 1
# Single GPU, PIXray-A
CUDA_VISIBLE_DEVICES=0 bash ./tools/dist_train.sh configs/occlusion/pix.py 1

# Multiple GPUs, PIDray-A
CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 bash ./tools/dist_train.sh configs/occlusion/pid.py 8
# Multiple GPUs, PIXray-A
CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 bash ./tools/dist_train.sh configs/occlusion/pix.py 8

# PIDray-A
bash ./tools/dist_test.sh configs/occlusion/pid.py {CHECKPOINT_FILE} {GPU_NUM}
# PIXray-A
bash ./tools/dist_test.sh configs/occlusion/pix.py {CHECKPOINT_FILE} {GPU_NUM}

@inproceedings{ren2025prohibited,
  title={Prohibited Items Segmentation via Occlusion-aware Bilayer Modeling},
  author={Ren, Yunhan and Li, Ruihuang and Liu, Lingbo and Chen,  Changwen},
  booktitle={2025 IEEE International Conference on Multimedia and Expo (ICME)},
  year={2025},
}