DeFlow: Decoder of Scene Flow Network in Autonomous Driving
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Abstract (arXiv)
Scene flow estimation determines a scene's 3D motion field, by predicting the motion of points in the scene, especially for aiding tasks in autonomous driving. Many networks with large-scale point clouds as input use voxelization to create a pseudo-image for real-time running. However, the voxelization process often results in the loss of point-specific features. This gives rise to a challenge in recovering those features for scene flow tasks. Our paper introduces DeFlow which enables a transition from voxel-based features to point features using Gated Recurrent Unit (GRU) refinement. To further enhance scene flow estimation performance, we formulate a novel loss function that accounts for the data imbalance between static and dynamic points. Evaluations on the Argoverse 2 scene flow task reveal that DeFlow achieves state-of-the-art results on large-scale point cloud data, demonstrating that our network has better performance and efficiency compared to others. The code is open-sourced at https://github.com/KTH-RPL/deflow.
Key facts. Cited by 30 papers in the map (data through 14 Oct 2026). Builds on 28 of its 36 references that are in the map. First posted on arXiv 29 Jan 2024.
Builds on
28 of 36 references.
References · 28
- 2016PointNet: Deep Learning on Point Sets for 3D Classification and Segmentationcited by 5,248
- 2015ShapeNet: An Information-Rich 3D Model Repositorycited by 2,897
- 2019Scalability in Perception for Autonomous Driving: Waymo Open Datasetcited by 2,451
- 2020RAFT: Recurrent All-Pairs Field Transforms for Optical Flowcited by 2,415
- 2018PointPillars: Fast Encoders for Object Detection from Point Cloudscited by 1,715
- 2015Multi-Scale Context Aggregation by Dilated Convolutionscited by 1,133
- 2015FlowNet: Learning Optical Flow with Convolutional Networkscited by 1,059
- 2017PWC-Net: CNNs for Optical Flow Using Pyramid, Warping, and Cost Volumecited by 968
- 2015A Large Dataset to Train Convolutional Networks for Disparity, Optical Flow, and Scene Flow Estimationcited by 881
- 2023Argoverse 2: Next Generation Datasets for Self-Driving Perception and Forecastingcited by 707
- 2021GMFlow: Learning Optical Flow via Global Matchingcited by 327
- 2019End-to-End Multi-View Fusion for 3D Object Detection in LiDAR Point Cloudscited by 171
16 more
- 2019Iterative Residual Refinement for Joint Optical Flow and Occlusion Estimationcited by 131
- 2022Point-to-Voxel Knowledge Distillation for LiDAR Semantic Segmentationcited by 119
- 2021Neural Scene Flow Priorcited by 91
- 2022CRAFT: Cross-Attentional Flow Transformer for Robust Optical Flowcited by 82
- 2020PV-RAFT: Point-Voxel Correlation Fields for Scene Flow Estimation of Point Cloudscited by 74
- 2022Motion Inspired Unsupervised Perception and Prediction in Autonomous Drivingcited by 59
- 2021Scalable Scene Flow from Point Clouds in the Real Worldcited by 50
- 2022Patchwork++: Fast and Robust Ground Segmentation Solving Partial Under-Segmentation Using 3D Point Cloudcited by 47
- 2021Self-Supervised Pillar Motion Learning for Autonomous Drivingcited by 44
- 2023Fast Neural Scene Flowcited by 41
- 2022Bi-PointFlowNet: Bidirectional Learning for Point Cloud Based Scene Flow Estimationcited by 38
- 2022Open-world Semantic Segmentation for LIDAR Point Cloudscited by 29
- 2022SCOOP: Self-Supervised Correspondence and Optimization-Based Scene Flowcited by 28
- 2023Dynablox: Real-time Detection of Diverse Dynamic Objects in Complex Environmentscited by 12
- 2023A Dynamic Points Removal Benchmark in Point Cloud Mapscited by 8
- 2022GMA3D: Local-Global Attention Learning to Estimate Occluded Motions of Scene Flowcited by 3
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Citing papers per year: 2024: 6; 2025: 14; 2026: 10.
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- 2024SeFlow: A Self-Supervised Scene Flow Method in Autonomous Drivingcited by 39
- 2024Flow4D: Leveraging 4D Voxel Network for LiDAR Scene Flow Estimationcited by 23
- 2024I Can't Believe It's Not Scene Flow!cited by 22
- 2024Neural Eulerian Scene Flow Fieldscited by 15
- 2025SSF: Sparse Long-Range Scene Flow for Autonomous Drivingcited by 13
- 2025HiMo: High-Speed Objects Motion Compensation in Point Cloudscited by 12
- 2024DUFOMap: Efficient Dynamic Awareness Mappingcited by 11
- 2025VoteFlow: Enforcing Local Rigidity in Self-Supervised Scene Flowcited by 11
- 2025Floxels: Fast Unsupervised Voxel Based Scene Flow Estimationcited by 10
- 2025AGO: Adaptive Grounding for Open World 3D Occupancy Predictioncited by 9
- 2025MambaFlow: A Novel and Flow-guided State Space Model for Scene Flow Estimationcited by 8
- 2025DeltaFlow: An Efficient Multi-frame Scene Flow Estimation Methodcited by 8
18 more
- 2024BeautyMap: Binary-Encoded Adaptable Ground Matrix for Dynamic Points Removal in Global Mapscited by 6
- 2026TeFlow: Enabling Multi-frame Supervision for Self-Supervised Feed-forward Scene Flow Estimationcited by 6
- 2025DoGFlow: Self-Supervised LiDAR Scene Flow via Cross-Modal Doppler Guidancecited by 4
- 2025TARS: Traffic-Aware Radar Scene Flow Estimationcited by 3
- 2025SemanticFlow: A Self-Supervised Framework for Joint Scene Flow Prediction and Instance Segmentation in Dynamic Environmentscited by 3
- 2025RaLiFlow: Scene Flow Estimation with 4D Radar and LiDAR Point Cloudscited by 3
- 2026RegFormer++: An Efficient Large-Scale 3D LiDAR Point Registration Network with Projection-Aware 2D Transformercited by 3
- 2025SSF-PAN: Semantic Scene Flow-Based Perception for Autonomous Navigation in Traffic Scenarioscited by 2
- 2026AsyncBEV: Cross-modal Flow Alignment in Asynchronous 3D Object Detectioncited by 2
- 2026SynFlow: Scaling Up LiDAR Scene Flow Estimation with Synthetic Datacited by 2
- 2025Temporal Overlapping Prediction: A Self-supervised Pre-training Method for LiDAR Moving Object Segmentationcited by 0
- 2025UniFlow: Zero-Shot LiDAR Scene Flow for Autonomous Vehiclescited by 0
- 2026Motion Cues from Image-based Point Tracking for LiDAR Scene Flow Estimationcited by 0
- 2026Weakly Supervised Cross-Modal Learning for 4D Radar Scene Flow Estimationcited by 0
- 2026CorrelationFlow: A Training-Free Geometric Approach for LiDAR Scene Flow Estimationcited by 0
- 2026RVLoss: Runoff Vote Loss for Self-Supervised LiDAR Scene Flow Estimationcited by 0
- 2026AevaScenes: An FMCW LiDAR Dataset and Benchmark for Long-Range Perceptioncited by 0
- 2026MeshBind: Point-to-Mesh Binding for Non-Rigid Scene Flow Automatic Annotationcited by 0
- 2026MeshBind: Point-to-Mesh Binding for Non-Rigid Scene Flow Automatic Annotation9 Oct 2026
- 2026AevaScenes: An FMCW LiDAR Dataset and Benchmark for Long-Range Perception27 Sep 2026
- 2026RVLoss: Runoff Vote Loss for Self-Supervised LiDAR Scene Flow Estimation19 Aug 2026
- 2026CorrelationFlow: A Training-Free Geometric Approach for LiDAR Scene Flow Estimation31 Jul 2026
- 2026Weakly Supervised Cross-Modal Learning for 4D Radar Scene Flow Estimation18 May 2026
- 2026Motion Cues from Image-based Point Tracking for LiDAR Scene Flow Estimation16 May 2026
- 2026SynFlow: Scaling Up LiDAR Scene Flow Estimation with Synthetic Data10 Apr 2026
- 2026RegFormer++: An Efficient Large-Scale 3D LiDAR Point Registration Network with Projection-Aware 2D Transformer15 Mar 2026
- 2026TeFlow: Enabling Multi-frame Supervision for Self-Supervised Feed-forward Scene Flow Estimation22 Feb 2026
- 2026AsyncBEV: Cross-modal Flow Alignment in Asynchronous 3D Object Detection19 Jan 2026
- 2025RaLiFlow: Scene Flow Estimation with 4D Radar and LiDAR Point Clouds11 Dec 2025
- 2025UniFlow: Zero-Shot LiDAR Scene Flow for Autonomous Vehicles23 Nov 2025
18 more
- 2025DoGFlow: Self-Supervised LiDAR Scene Flow via Cross-Modal Doppler Guidance25 Aug 2025
- 2025DeltaFlow: An Efficient Multi-frame Scene Flow Estimation Method23 Aug 2025
- 2025AGO: Adaptive Grounding for Open World 3D Occupancy Prediction14 Apr 2025
- 2025VoteFlow: Enforcing Local Rigidity in Self-Supervised Scene Flow28 Mar 2025
- 2025SemanticFlow: A Self-Supervised Framework for Joint Scene Flow Prediction and Instance Segmentation in Dynamic Environments19 Mar 2025
- 2025TARS: Traffic-Aware Radar Scene Flow Estimation13 Mar 2025
- 2025Temporal Overlapping Prediction: A Self-supervised Pre-training Method for LiDAR Moving Object Segmentation10 Mar 2025
- 2025Floxels: Fast Unsupervised Voxel Based Scene Flow Estimation6 Mar 2025
- 2025HiMo: High-Speed Objects Motion Compensation in Point Clouds2 Mar 2025
- 2025MambaFlow: A Novel and Flow-guided State Space Model for Scene Flow Estimation24 Feb 2025
- 2025SSF: Sparse Long-Range Scene Flow for Autonomous Driving29 Jan 2025
- 2025SSF-PAN: Semantic Scene Flow-Based Perception for Autonomous Navigation in Traffic Scenarios28 Jan 2025
- 2024Neural Eulerian Scene Flow Fields2 Oct 2024
- 2024Flow4D: Leveraging 4D Voxel Network for LiDAR Scene Flow Estimation10 Jul 2024
- 2024SeFlow: A Self-Supervised Scene Flow Method in Autonomous Driving1 Jul 2024
- 2024BeautyMap: Binary-Encoded Adaptable Ground Matrix for Dynamic Points Removal in Global Maps12 May 2024
- 2024I Can't Believe It's Not Scene Flow!7 Mar 2024
- 2024DUFOMap: Efficient Dynamic Awareness Mapping3 Mar 2024
- 2024SeFlow: A Self-Supervised Scene Flow Method in Autonomous Drivingcited by 39
- 2024Flow4D: Leveraging 4D Voxel Network for LiDAR Scene Flow Estimationcited by 23
- 2024I Can't Believe It's Not Scene Flow!cited by 22
- 2024Neural Eulerian Scene Flow Fieldscited by 15
- 2025SSF: Sparse Long-Range Scene Flow for Autonomous Drivingcited by 13
- 2025HiMo: High-Speed Objects Motion Compensation in Point Cloudscited by 12
- 2024DUFOMap: Efficient Dynamic Awareness Mappingcited by 11
- 2025VoteFlow: Enforcing Local Rigidity in Self-Supervised Scene Flowcited by 11
- 2025Floxels: Fast Unsupervised Voxel Based Scene Flow Estimationcited by 10
- 2025AGO: Adaptive Grounding for Open World 3D Occupancy Predictioncited by 9
- 2025DeltaFlow: An Efficient Multi-frame Scene Flow Estimation Methodcited by 8
- 2024BeautyMap: Binary-Encoded Adaptable Ground Matrix for Dynamic Points Removal in Global Mapscited by 6
12 most cited of 29 All 29 (JSON)
- 2026MeshBind: Point-to-Mesh Binding for Non-Rigid Scene Flow Automatic Annotation9 Oct 2026
- 2026AevaScenes: An FMCW LiDAR Dataset and Benchmark for Long-Range Perception27 Sep 2026
- 2026RVLoss: Runoff Vote Loss for Self-Supervised LiDAR Scene Flow Estimation19 Aug 2026
- 2026CorrelationFlow: A Training-Free Geometric Approach for LiDAR Scene Flow Estimation31 Jul 2026
- 2026Weakly Supervised Cross-Modal Learning for 4D Radar Scene Flow Estimation18 May 2026
- 2026Motion Cues from Image-based Point Tracking for LiDAR Scene Flow Estimation16 May 2026
- 2026SynFlow: Scaling Up LiDAR Scene Flow Estimation with Synthetic Data10 Apr 2026
- 2026RegFormer++: An Efficient Large-Scale 3D LiDAR Point Registration Network with Projection-Aware 2D Transformer15 Mar 2026
- 2026TeFlow: Enabling Multi-frame Supervision for Self-Supervised Feed-forward Scene Flow Estimation22 Feb 2026
- 2026AsyncBEV: Cross-modal Flow Alignment in Asynchronous 3D Object Detection19 Jan 2026
- 2025RaLiFlow: Scene Flow Estimation with 4D Radar and LiDAR Point Clouds11 Dec 2025
- 2025UniFlow: Zero-Shot LiDAR Scene Flow for Autonomous Vehicles23 Nov 2025
12 newest of 29 All 29 (JSON)