Lift, Splat, Shoot: Encoding Images from Arbitrary Camera Rigs by Implicitly Unprojecting to 3D
Open accessThe claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Monocular frameworks process different views separately and cannot capture information across cameras, leading to low performance and efficiency.
“The downside of this framework is that it processes different views separately and cannot capture information across cameras, leading to low performance and efficiency [32, 47].”
From BEVFormer: Learning Bird's-Eye-View Representation from Multi-Camera Images via Spatiotemporal Transformers (2022) · cites this paper as [32]
The Introduction (p. 2) describes a simple multi-view approach that applies a single-image detector to each camera separately and says it cannot learn the best way to fuse information across cameras. The baseline discussion (Section 5.1, p. 9) reports weak performance for one independently encoded multi-view CNN. The paper does not establish that such frameworks cannot capture any cross-camera information or that they have low efficiency. (LLM, conf=0.85)
Experimental — accuracy not yet measuredDepth-based BEV frameworks are sensitive to the accuracy of depth values or depth distributions.
“A popular BEV framework that generates BEV features is based on depth information [46, 32, 34], but this paradigm is sensitive to the accuracy of depth values or the depth distributions.”
From BEVFormer: Learning Bird's-Eye-View Representation from Multi-Camera Images via Spatiotemporal Transformers (2022) · cites this paper as [32]
Section 3.1 (p. 5) says depth is required to transform image features into reference coordinates and that the predicted depth distribution determines where those features are placed. Section 5.1 (p. 9) reports that the model learns an effective depth distribution. These passages support the importance of depth information, but the paper does not directly establish how sensitive BEV performance is to the accuracy of depth values or distributions. (LLM, conf=0.82)
Experimental — accuracy not yet measuredPrevious map segmentation methods demonstrate BEV's effectiveness.
“Although previous map segmentation methods demonstrate BEV's effectiveness [32, 18, 29]”
From BEVFormer: Learning Bird's-Eye-View Representation from Multi-Camera Images via Spatiotemporal Transformers (2022) · cites this paper as [32]
With joint training, BEVFormer outperforms Lift-Splat by 11.0 NDS points on detection (52.0 vs 41.0) and 5.6 IoU points on lane segmentation (23.9 vs 18.3).
“For example, with joint training, BEVFormer outperforms Lift-Splat ∗ [32] by 11.0 points on detation task (52.0% NDS v.s. 41.0% NDS) and IoU of 5.6 points on lane segmentation (23.9% v.s. 18.3%).”
From BEVFormer: Learning Bird's-Eye-View Representation from Multi-Camera Images via Spatiotemporal Transformers (2022) · cites this paper as [32]
When training BEVFormer with noisy extrinsics, BEVFormer (noise) has stronger robustness, dropping only 8.9% NDS.
“Following [32], we show that when training BEVFormer with noisy extrinsics, BEVFormer (noise) has stronger robustness (only drops 8.9% NDS).”
From BEVFormer: Learning Bird's-Eye-View Representation from Multi-Camera Images via Spatiotemporal Transformers (2022) · cites this paper as [32]
Lift-Splat generates BEV features based on depth distribution.
“Lift-Splat [32] generates the BEV features based on the depth distribution.”
From BEVFormer: Learning Bird's-Eye-View Representation from Multi-Camera Images via Spatiotemporal Transformers (2022) · cites this paper as [32]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
ImageNet classification with deep convolutional neural networks
Krizhevsky, A., Sutskever, I., & Hinton, G. E. (2017) · Communications of the ACM · doi:10.1145/3065386 · Cited by 112,155 · see citing works
ImageNet Large Scale Visual Recognition Challenge
Russakovsky, O., Deng, J., Su, H., Krause, J., Satheesh, S., Ma, S., Huang, Z., Karpathy, A., Khosla, A., Bernstein, M., et al. (2015) · International Journal of Computer Vision · doi:10.1007/s11263-015-0816-y · Cited by 39,380 · see citing works
SegNet: A Deep Convolutional Encoder-Decoder Architecture for Image Segmentation
Badrinarayanan, V., Kendall, A., & Cipolla, R. (2017) · IEEE Transactions on Pattern Analysis and Machine Intelligence · doi:10.1109/tpami.2016.2644615 · Cited by 19,631 · see citing works
EfficientNet: Rethinking Model Scaling for Convolutional Neural Networks
Tan, M., & Le, Q. V. (2019) · arXiv · doi:10.48550/arxiv.1905.11946 · Cited by 17,072 · see citing works
nuScenes: A Multimodal Dataset for Autonomous Driving
Caesar, H., Bankiti, V., Lang, A. H., Vora, S., Liong, V. E., Xu, Q., Krishnan, A., Pan, Y., Baldan, G., & Beijbom, O. (2020) · 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr42600.2020.01164 · Cited by 7,152 · see citing works
PointPillars: Fast Encoders for Object Detection From Point Clouds
Lang, A. H., Vora, S., Caesar, H., Zhou, L., Yang, J., & Beijbom, O. (2019) · 2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr.2019.01298 · Cited by 4,673 · see citing works
Deep Residual Learning for Image Recognition
He, K., Zhang, X., Ren, S., & Sun, J. (2015) · arXiv · doi:10.48550/arxiv.1512.03385 · Cited by 4,196 · see citing works
Wang, Y., Chao, W.-L., Garg, D., Hariharan, B., Campbell, M., & Weinberger, K. Q. (2019) · 2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr.2019.00864 · Cited by 1,154 · see citing works
Flagged first, then by citations
Research works printed but not linked: 27
- [3]3. Chang, M.F., Ramanan, D., Hays, J., Lambert, J., Sangkloy, P., Singh, J., Bak, S., Hartnett, A., Wang, D., Carr, P., et al.: Argoverse: 3d tracking and forecasting with rich maps. IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (Jun 2019)
- [4]4. Chen, X., Kundu, K., Zhang, Z., Ma, H., Fidler, S., Urtasun, R.: Monocular 3d object detection for autonomous driving. In: IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). pp. 2147-2156 (06 2016)
- [5]5. Ghiasi, G., Lin, T., Le, Q.V.: Dropblock: A regularization method for convolutional networks. CoRR abs/1810.12890 (2018), http://arxiv.org/abs/1810.12890 · arXiv
- [6]6. Goodfellow, I., Bengio, Y., Courville, A.: Deep Learning. MIT Press (2016), http: //www.deeplearningbook.org
- [7]7. He, K., Gkioxari, G., Doll´ ar, P., Girshick, R.B.: Mask R-CNN. CoRR abs/1703.06870 (2017), http://arxiv.org/abs/1703.06870 · arXiv
- [10]10. Ioffe, S., Szegedy, C.: Batch normalization: Accelerating deep network training by reducing internal covariate shift. CoRR abs/1502.03167 (2015), http://arxiv. org/abs/1502.03167 · arXiv
- [11]11. Kayhan, O.S., Gemert, J.C.v.: On translation invariance in cnns: Convolutional layers can exploit absolute spatial location. In: Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (June 2020)
- [12]12. Kehl, W., Manhardt, F., Tombari, F., Ilic, S., Navab, N.: SSD-6D: making rgbbased 3d detection and 6d pose estimation great again. CoRR abs/1711.10006 (2017) · arXiv
- [14]14. Kingma, D.P., Ba, J.: Adam: A method for stochastic optimization. CoRR abs/1412.6980 (2014) · arXiv
- [15]15. Kirillov, A., He, K., Girshick, R.B., Rother, C., Doll´ ar, P.: Panoptic segmentation. CoRR abs/1801.00868 (2018), http://arxiv.org/abs/1801.00868 · arXiv
- [19]19. Lecun, Y., Bottou, L., Bengio, Y., Haffner, P.: Gradient-based learning applied to document recognition. In: Proceedings of the IEEE. pp. 2278-2324 (1998)
- [20]20. Lombardi, S., Simon, T., Saragih, J., Schwartz, G., Lehrmann, A., Sheikh, Y.: Neural volumes. ACM Transactions on Graphics 38 (4), 114 (Jul 2019). https://doi.org/10.1145/3306346.3323020, http://dx.doi.org/10.1145/ 3306346.3323020 · DOI
- [21]21. Mani, K., Daga, S., Garg, S., Shankar, N.S., Jatavallabhula, K.M., Krishna, K.M.: Monolayout: Amodal scene layout from a single image. ArXiv abs/2002.08394 (2020) · arXiv
- [22]22. Nair, V., Hinton, G.E.: Rectified linear units improve restricted boltzmann machines. In: ICML (2010)
- [23]23. Paszke, A., Gross, S., Massa, F., Lerer, A., Bradbury, J., Chanan, G., Killeen, T., Lin, Z., Gimelshein, N., Antiga, L., Desmaison, A., K¨ opf, A., Yang, E., DeVito, Z., Raison, M., Tejani, A., Chilamkurthy, S., Steiner, B., Fang, L., Bai, J., Chintala, S.: Pytorch: An imperative style, high-performance deep learning library. In: NeurIPS (2019)
- [24]24. Philion, J.: Fastdraw: Addressing the long tail of lane detection by adapting a sequential prediction network. In: Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (June 2019)
- [25]25. Philion, J., Kar, A., Fidler, S.: Learning to evaluate perception models using planner-centric metrics. In: Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (June 2020)
- [26]26. Poirson, P., Ammirato, P., Fu, C., Liu, W., Kosecka, J., Berg, A.C.: Fast single shot detection and pose estimation. CoRR abs/1609.05590 (2016) · arXiv
- [27]27. Qin, Z., Wang, J., Lu, Y.: Monogrnet: A geometric reasoning network for monocular 3d object localization. Proceedings of the AAAI Conference on Artificial Intelligence 33 , 8851-8858 (07 2019). https://doi.org/10.1609/aaai.v33i01.33018851 · DOI · Paper page
- [28]28. Roddick, T., Cipolla, R.: Predicting semantic map representations from images using pyramid occupancy networks. In: Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (June 2020)
- [29]29. Roddick, T., Kendall, A., Cipolla, R.: Orthographic feature transform for monocular 3d object detection. CoRR abs/1811.08188 (2018) · arXiv
- [31]31. Simonelli, A., Bul` o, S.R., Porzi, L., L´ opez-Antequera, M., Kontschieder, P.: Disentangling monocular 3d object detection. CoRR abs/1905.12365 (2019) · arXiv
- [33]33. Srivastava, N., Hinton, G., Krizhevsky, A., Sutskever, I., Salakhutdinov, R.: Dropout: A simple way to prevent neural networks from overfitting. Journal of Machine Learning Research 15 , 1929-1958 (2014)
- [34]34. Su, H., Jampani, V., Sun, D., Maji, S., Kalogerakis, E., Yang, M., Kautz, J.: Splatnet: Sparse lattice networks for point cloud processing. CoRR abs/1802.08275 (2018), http://arxiv.org/abs/1802.08275 · arXiv
- [36]36. Takikawa, T., Acuna, D., Jampani, V., Fidler, S.: Gated-scnn: Gated shape cnns for semantic segmentation. In: Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) (October 2019)
- [40]40. You, Y., Wang, Y., Chao, W., Garg, D., Pleiss, G., Hariharan, B., Campbell, M., Weinberger, K.Q.: Pseudo-lidar++: Accurate depth for 3d object detection in autonomous driving. CoRR abs/1906.06310 (2019) · arXiv
- [41]41. Zeng, W., Luo, W., Suo, S., Sadat, A., Yang, B., Casas, S., Urtasun, R.: End-to-end interpretable neural motion planner. IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) pp. 8652-8661 (2019)
Cited by
Sorted by citations
TransFusion: Robust LiDAR-Camera Fusion for 3D Object Detection with Transformers
Bai, X., Hu, Z., Zhu, X., Huang, Q., Chen, Y., Fu, H., & Tai, C.-L. (2022) · 2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr52688.2022.00116 · Cited by 990 · see citing works
Categorical Depth Distribution Network for Monocular 3D Object Detection
Reading, C., Harakeh, A., Chae, J., & Waslander, S. L. (2021) · 2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr46437.2021.00845 · Cited by 595 · see citing works
MP3: A Unified Model to Map, Perceive, Predict and Plan
Casas, S., Sadat, A., & Urtasun, R. (2021) · 2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr46437.2021.01417 · Cited by 228 · see citing works
Cross Modal Transformer: Towards Fast and Robust 3D Object Detection
Yan, J., Liu, Y., Sun, J., Jia, F., Li, S., Wang, T., & Zhang, X. (2023) · 2023 IEEE/CVF International Conference on Computer Vision (ICCV) · doi:10.1109/iccv51070.2023.01675 · Cited by 182 · see citing works
CRN: Camera Radar Net for Accurate, Robust, Efficient 3D Perception
Kim, Y., Shin, J., Kim, S., Lee, I.-J., Choi, J. W., & Kum, D. (2023) · 2023 IEEE/CVF International Conference on Computer Vision (ICCV) · doi:10.1109/iccv51070.2023.01615 · Cited by 155 · see citing works
3D Object Detection from Images for Autonomous Driving: A Survey
Ma, X., Ouyang, W., Simonelli, A., & Ricci, E. (2022) · arXiv · doi:10.48550/arxiv.2202.02980 · Cited by 147 · see citing works
SparseBEV: High-Performance Sparse 3D Object Detection from Multi-Camera Videos
Liu, H., Teng, Y., Lu, T., Wang, H., & Wang, L. (2023) · 2023 IEEE/CVF International Conference on Computer Vision (ICCV) · doi:10.1109/iccv51070.2023.01703 · Cited by 154 · see citing works
RCBEVDet: Radar-Camera Fusion in Bird's Eye View for 3D Object Detection
Lin, Z., Liu, Z., Xia, Z., Wang, X., Wang, Y., Qi, S., Dong, Y., Dong, N., Zhang, L., & Zhu, C. (2024) · 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr52733.2024.01414 · Cited by 153 · see citing works
CRAFT: Camera-Radar 3D Object Detection with Spatio-Contextual Fusion Transformer
Kim, Y., Kim, S., Choi, J. W., & Kum, D. (2023) · Proceedings of the AAAI Conference on Artificial Intelligence · doi:10.1609/aaai.v37i1.25198 · Cited by 130 · see citing works
FocalFormer3D : Focusing on Hard Instance for 3D Object Detection
Chen, Y., Yu, Z., Chen, Y., Lan, S., Anandkumar, A., Jia, J., & Alvarez, J. M. (2023) · 2023 IEEE/CVF International Conference on Computer Vision (ICCV) · doi:10.1109/iccv51070.2023.00771 · Cited by 119 · see citing works
“Unlike heavy lift-splat-shot [32] camera encoders used in BEV-Fusion [5, 6], the multi-view camera images are projected onto a pre-defined voxel space and fused with LiDAR BEV feature.”
MethodLi, Z., Wang, W., Li, H., Xie, E., Sima, C., Lu, T., Yu, Q., & Dai, J. (2022) · arXiv · doi:10.48550/arxiv.2203.17270 · Cited by 1,419 · see citing works
“To eliminate the effect of task heads and compare other BEV generating methods fairly, we use VPN [30] and Lift-Splat [32] to replace our BEVFormer and keep task heads and other settings the same.”
BackgroundMethodInfluentialGAFusion: Adaptive Fusing LiDAR and Camera with Multiple Guidance for 3D Object Detection
Li, X., Fan, B., Tian, J., & Fan, H. (2024) · 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr52733.2024.02004 · Cited by 42 · see citing works
“Recently, BEVFusion [22, 26] are proposed to fuse LiDAR features and camera features in BEV space and apply a lift-splat-shoot (LSS) [30] operation to project image features, resulting in semantic-rich features.”
MethodPan, C., He, Y., Peng, J., Zhang, Q., Sui, W., & Zhang, Z. (2023) · 2023 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr52729.2023.00925 · Cited by 33 · see citing works
Transformer-based sensor fusion for autonomous vehicles: A comprehensive review
Abdulmaksoud, A., & Ahmed, R. (2025) · IEEE Access · doi:10.1109/access.2025.3545032 · Cited by 25 · see citing works
Exploring Sensor Impact and Architectural Robustness in Adverse Weather on BEV Perception
Kumar, S., Sharma, S., Asghar, R., Mohandas, R., Brophy, T., Sistu, G., Grua, E. M., Donzella, V., & Eising, C. (2025) · IEEE Open Journal of Vehicular Technology · doi:10.1109/ojvt.2025.3621862 · Cited by 5 · see citing works
“For camera-only BEV segmentation, we compare the fusion architectures with existing baselines such as OFT [84], LSS [27], CVT [29], and MMTRaP [30], reporting vehicle IoU scores ranging from 30.1% to 37.9% under clean sensor conditions.”
Influential
- Authors
- Philion, J., & Fidler, S.
- Affiliations
- University of Toronto (CA)
- Corresponding author
- Philion, Jonah
- ORCID
- Fidler, Sanja
- Venue
- Lecture Notes in Computer Science
- Publisher
- Springer International Publishing
- Published
- 2020
- Pages
- 194-210
- ISSN
- 0302-9743 (ISSN-L)
- 1611-3349
- OpenAlex
- W3048770793
- Cited by
- 1,271
- References
- 8
- Citations by year
- 2026: 249 · 2025: 389 · 2024: 381 · 2023: 182 · 2022: 46 · 2021: 23 · 2020: 1
- FWCI
- 19.43
- Type
- conference paper
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- Locations
- Lecture notes in computer science (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Vision and Imaging
- Physical Sciences › Engineering › Automotive Engineering › Autonomous Vehicle Technology and Safety
- Keywords
- bird's-eye-view representation, multi-camera fusion, rasterization, autonomous driving perception, object segmentation, map segmentation, cost map, calibration robustness
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review