Papers › An End-to-End Transformer Model for 3D Object Detection

An End-to-End Transformer Model for 3D Object Detection

16 Sep 2021ICCV 2021 10arXiv:2109.08141archive 2025-07-28

Ishan Misra, Rohit Girdhar, Armand Joulin

We propose 3DETR, an end-to-end Transformer based object detection model for 3D point clouds. Compared to existing detection methods that employ a number of 3D-specific inductive biases, 3DETR requires minimal modifications to the vanilla Transformer block. Specifically, we find that a standard Transformer with non-parametric queries and Fourier positional embeddings is competitive with specialized architectures that employ libraries of 3D-specific operators with hand-tuned hyperparameters. Nevertheless, 3DETR is conceptually simple and easy to implement, enabling further improvements by incorporating 3D domain knowledge. Through extensive experiments, we show 3DETR outperforms the well-established and highly optimized VoteNet baselines on the challenging ScanNetV2 dataset by 9.5%. Furthermore, we show 3DETR is applicable to 3D tasks beyond detection, and can serve as a building block for future research.

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Code

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facebookresearch/3detr mentioned on GitHubpytorch report

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1ran · honoured contract
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BatchNormDim1Swap facebookresearch/3detr/models/model_3detr.py community (archive-listed) ran Apache-2.0 (permissive) · d5a77f2ff6399442 · report
BoxProcessor facebookresearch/3detr/models/model_3detr.py community (archive-listed) ran Apache-2.0 (permissive) · a91c6967a4ff8553 · report
GenericMLP facebookresearch/3detr/models/model_3detr.py community (archive-listed) ran Apache-2.0 (permissive) · 571333c23ae0f3ed · report
PositionEmbeddingCoordsSine facebookresearch/3detr/models/model_3detr.py community (archive-listed) ran Apache-2.0 (permissive) · 354fe5ecc3240909 · report
scale_points facebookresearch/3detr/models/model_3detr.py community (archive-listed) ran · honoured contract fingerprinted Apache-2.0 (permissive) · c2546a46c7f63930 · report
Model3DETR facebookresearch/3detr/models/model_3detr.py community (archive-listed) unverified Apache-2.0 (permissive) · 5ba9ad4c9902d06c · report
shift_scale_points identical code first harvested elsewhere ran · fixture could not drive it licence of this copy not recorded · 818099bdffc93897 · report

Tasks

3D Object DetectionObject Detectionobject-detection

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
3D Object Detection SUN-RGBD val 3DETR-m mAP@0.25 59.1 #23 of 32 Archive leaderboard report
3D Object Detection SUN-RGBD val 3DETR-m mAP@0.5 32.7 #23 of 32 Archive leaderboard report
3D Object Detection ScanNetV2 3DETR-m mAP@0.25 65.0 #24 of 33 Archive leaderboard report
3D Object Detection ScanNetV2 3DETR-m mAP@0.5 47.0 #24 of 33 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

Absolute Position EncodingsAdamAttentionBPEDense ConnectionsDropoutLabel SmoothingLayer NormalizationLinear LayerMulti-Head AttentionPosition-Wise Feed-Forward LayerResidual ConnectionSoftmaxTransformer

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