🌍 OccOoD

May 23, 2026 · View on GitHub


🌍 OccOoD

Out-of-Distribution 3D Semantic Occupancy Prediction


arXiv   GitHub License



💡 What makes OOD evaluation hard? Real-world anomalies are too rare to collect at scale.
💡 Our answer: A Synthetic Anomaly Integration Pipeline that inserts physically-plausible OOD objects into existing 3D occupancy data — producing 3 benchmark datasets spanning 26 anomaly categories.


 🧪 Pipeline   📦 Datasets   🤖 Models   🚀 Quick Start 


🧪 Pipeline

ProblemOOD object data is scarce — real anomalies are rare and annotation is expensive
SolutionSynthetic anomaly generation under physical & environmental constraints
ResultPlausible, challenging OOD evaluation data at scale


📦 Datasets & Downloads

📥 3 benchmarks built on SemanticKITTI & KITTI-360 (click to collapse)
#DatasetBaseAnomaly ObjectsDownload
1VAA-KITTISemanticKITTI26 categories⬇️ Google Drive
2VAA-KITTI-360KITTI-36026 categories⬇️ Google Drive
3VAA-STUSTU⬇️ Google Drive

📊 Anomaly types: animals · furniture · garbage bags · construction debris · vegetation overgrowth · vehicles · and more


🤖 Model Zoo

Hugging Face

DatasetModelmIoULogWeight
SemanticKITTIOccOoD-T16.80logpth
SemanticKITTIOccOoD-S13.79logpth
KITTI-360OccOoD-T18.38logpth
KITTI-360OccOoD-S12.47logpth

🚀 Quick Start

# 1. Install environment
#    → docs/install.md

# 2. Download datasets
#    → docs/dataset.md

# 3. Train & evaluate
#    → docs/run.md

📖 install.md  ·  dataset.md  ·  run.md


🏗️ 2025.06 🚀 2025.08
Repo initialized Code released

Built on SGN  ·  mmdet3d  ·  OccRWKV