SphereUFormer: A U-Shaped Transformer for Spherical 360 Perception
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Abstract (arXiv)
This paper proposes a novel method for omnidirectional 360degree perception. Most common previous methods relied on equirectangular projection. This representation is easily applicable to 2D operation layers but introduces distortions into the image. Other methods attempted to remove the distortions by maintaining a sphere representation but relied on complicated convolution kernels that failed to show competitive results. In this work, we introduce a transformer-based architecture that, by incorporating a novel ``Spherical Local Self-Attention'' and other spherically-oriented modules, successfully operates in the spherical domain and outperforms the state-of-the-art in 360degree perception benchmarks for depth estimation and semantic segmentation.
Key facts. Cited by 12 papers in the map (data through 7 Oct 2026). Builds on 36 of its 56 references that are in the map. First posted on arXiv 9 Dec 2024.
Builds on
36 of 56 references.
References · 36
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24 more
- 2017Joint 2D-3D-Semantic Data for Indoor Scene Understandingcited by 404
- 2019Structured3D: A Large Photo-realistic Dataset for Structured 3D Modelingcited by 285
- 2020HoHoNet: 360 Indoor Holistic Understanding with Latent Horizontal Featurescited by 104
- 2018OmniDepth: Dense Depth Estimation for Indoors Spherical Panoramascited by 98
- 2022PanoFormer: Panorama Transformer for Indoor 360 Depth Estimationcited by 94
- 2021UniFuse: Unidirectional Fusion for 360circ Panorama Depth Estimationcited by 91
- 2019Tangent Images for Mitigating Spherical Distortioncited by 79
- 2019Spherical CNNs on Unstructured Gridscited by 76
- 2018Cube Padding for Weakly-Supervised Saliency Prediction in 360deg Videoscited by 66
- 2020DeepSphere: a graph-based spherical CNNcited by 65
- 2021Subdivision-Based Mesh Convolution Networkscited by 60
- 2021360MonoDepth: High-Resolution 360deg Monocular Depth Estimationcited by 60
- 2022OmniFusion: 360 Monocular Depth Estimation via Geometry-Aware Fusioncited by 60
- 2019Orientation-aware Semantic Segmentation on Icosahedron Spherescited by 52
- 2023EGformer: Equirectangular Geometry-biased Transformer for 360 Depth Estimationcited by 42
- 2018SpherePHD: Applying CNNs on a Spherical PolyHeDron Representation of 360 degree Imagescited by 40
- 2021Pano3D: A Holistic Benchmark and a Solid Baseline for 360o Depth Estimationcited by 37
- 2023HRDFuse: Monocular 360degDepth Estimation by Collaboratively Learning Holistic-with-Regional Depth Distributionscited by 37
- 2022BiFuse++: Self-supervised and Efficient Bi-projection Fusion for 360 Depth Estimationcited by 35
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- 2023HEAL-SWIN: A Vision Transformer On The Spherecited by 18
- 2023Single Frame Semantic Segmentation Using Multi-Modal Spherical Imagescited by 18
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Built on by
Citing papers per year: 2025: 3; 2026: 9.
12 papers.
- 2025Depth Any Panoramas: A Foundation Model for Panoramic Depth Estimationcited by 24
- 2025Attention on the Spherecited by 9
- 2026EAGOR: Embodied Reasoning in Omni-directioncited by 3
- 2025OmniTrack++: Omnidirectional Multi-Object Tracking by Learning Large-FoV Trajectory Feedbackcited by 2
- 2026MARA: Continuous SE(3)-Equivariant Attention for Molecular Force Fieldscited by 1
- 2026SO3UFormer: Learning Intrinsic Spherical Features for Rotation-Robust Panoramic Dense Predictioncited by 1
- 2026EAGLE-360: Embodied Active Global-to-Local Exploration in 360^circcited by 1
- 2026AdapToPASS: Ambiguity-aware Adaptive Spherical Transformer for Panoramic Semantic Segmentationcited by 1
- 2026Neural Operators for Biomedical Spherical Heterogeneitycited by 0
- 2026Panoramic Scene Understanding: A Survey from Distortion-Aware Engineering to Sphere-Native Modelingcited by 0
- 2026SphMind: Towards Robust, Training-Free VLM-based Spatial Reasoning with a 360 Cameracited by 0
- 2026SCCM: Spherically Consistent Coarse Matching for ERP Dense Feature Correspondencecited by 0
- 2026SCCM: Spherically Consistent Coarse Matching for ERP Dense Feature Correspondence29 Sep 2026
- 2026SphMind: Towards Robust, Training-Free VLM-based Spatial Reasoning with a 360 Camera27 Sep 2026
- 2026AdapToPASS: Ambiguity-aware Adaptive Spherical Transformer for Panoramic Semantic Segmentation29 Aug 2026
- 2026EAGOR: Embodied Reasoning in Omni-direction7 Jul 2026
- 2026EAGLE-360: Embodied Active Global-to-Local Exploration in 360^circ2 Jul 2026
- 2026Panoramic Scene Understanding: A Survey from Distortion-Aware Engineering to Sphere-Native Modeling26 Jun 2026
- 2026SO3UFormer: Learning Intrinsic Spherical Features for Rotation-Robust Panoramic Dense Prediction26 Feb 2026
- 2026MARA: Continuous SE(3)-Equivariant Attention for Molecular Force Fields2 Feb 2026
- 2026Neural Operators for Biomedical Spherical Heterogeneity7 Jan 2026
- 2025Depth Any Panoramas: A Foundation Model for Panoramic Depth Estimation18 Dec 2025
- 2025OmniTrack++: Omnidirectional Multi-Object Tracking by Learning Large-FoV Trajectory Feedback1 Nov 2025
- 2025Attention on the Sphere16 May 2025