SOAP: Cross-sensor Domain Adaptation for 3D Object Detection Using Stationary Object Aggregation Pseudo-labelling
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Abstract (arXiv)
We consider the problem of cross-sensor domain adaptation in the context of LiDAR-based 3D object detection and propose Stationary Object Aggregation Pseudo-labelling (SOAP) to generate high quality pseudo-labels for stationary objects. In contrast to the current state-of-the-art in-domain practice of aggregating just a few input scans, SOAP aggregates entire sequences of point clouds at the input level to reduce the sensor domain gap. Then, by means of what we call quasi-stationary training and spatial consistency post-processing, the SOAP model generates accurate pseudo-labels for stationary objects, closing a minimum of 30.3% domain gap compared to few-frame detectors. Our results also show that state-of-the-art domain adaptation approaches can achieve even greater performance in combination with SOAP, in both the unsupervised and semi-supervised settings.
Key facts. Cited by 8 papers in the map (data through 7 Oct 2026). Builds on 24 of its 32 references that are in the map. First posted on arXiv 8 Jan 2024.
Builds on
24 of 32 references.
References · 24
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12 more
- 2021ST3D++: Denoised Self-training for Unsupervised Domain Adaptation on 3D Object Detectioncited by 57
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Citing papers per year: 2024: 4; 2025: 3; 2026: 1.
8 papers.
- 2024UADA3D: Unsupervised Adversarial Domain Adaptation for 3D Object Detection with Sparse LiDAR and Large Domain Gapscited by 12
- 2024MOS: Model Synergy for Test-Time Adaptation on LiDAR-Based 3D Object Detectioncited by 6
- 2024DPO: Dual-Perturbation Optimization for Test-time Adaptation in 3D Object Detectioncited by 5
- 2025CleverDistiller: Simple and Spatially Consistent Cross-modal Distillationcited by 3
- 2024VADet: Multi-frame LiDAR 3D Object Detection using Variable Aggregationcited by 2
- 2025MonoCT: Overcoming Monocular 3D Detection Domain Shift with Consistent Teacher Modelscited by 2
- 2025MFSeg: Efficient Multi-frame 3D Semantic Segmentationcited by 0
- 2026XD-MAP: Cross-Modal Domain Adaptation via Semantic Parametric Maps for Scalable Training Data Generationcited by 0
- 2026XD-MAP: Cross-Modal Domain Adaptation via Semantic Parametric Maps for Scalable Training Data Generation20 Jan 2026
- 2025MFSeg: Efficient Multi-frame 3D Semantic Segmentation7 May 2025
- 2025MonoCT: Overcoming Monocular 3D Detection Domain Shift with Consistent Teacher Models17 Mar 2025
- 2025CleverDistiller: Simple and Spatially Consistent Cross-modal Distillation12 Mar 2025
- 2024VADet: Multi-frame LiDAR 3D Object Detection using Variable Aggregation20 Nov 2024
- 2024MOS: Model Synergy for Test-Time Adaptation on LiDAR-Based 3D Object Detection21 Jun 2024
- 2024DPO: Dual-Perturbation Optimization for Test-time Adaptation in 3D Object Detection19 Jun 2024
- 2024UADA3D: Unsupervised Adversarial Domain Adaptation for 3D Object Detection with Sparse LiDAR and Large Domain Gaps26 Mar 2024