DualPathOcc: Dual-Resolution BEV Encoder for 3D Occupancy Prediction
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Abstract (arXiv)
Predicting 3D occupancy from multi-view images requires preserving geometric detail during 2D-to-3D lifting while reasoning over sparse, volumetric scene representations. We present DualPathOcc, a camera-based framework that combines a Spatial Enhancer for high-resolution feature aggregation before BEV compression, a SENet-augmented dual-path BEV encoder for local-global context modeling, and height-aware weighted cross-entropy for near-ground occupancy. The final model is optimized with occupancy supervision and no explicit depth loss. On single-frame Occ3D-nuScenes, DualPathOcc achieves 37.37 mIoU. We further analyze how surface-centered depth targets interact with volumetric occupancy learning.
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References · 37
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- 2024Deep Height Decoupling for Precise Vision-based 3D Occupancy Predictioncited by 16
- 2024Hierarchical Context Alignment with Disentangled Geometric and Temporal Modeling for Semantic Occupancy Predictioncited by 8
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