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--- |
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pipeline_tag: graph-ml |
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library_name: pytorch |
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license: apache-2.0 |
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tags: |
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- 3d |
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- point-cloud |
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- self-supervised-learning |
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--- |
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# Concerto: Joint 2D-3D Self-Supervised Learning Emerges Spatial Representations |
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This repository contains the model weights for **Concerto**, a novel approach for learning robust spatial representations presented in the paper [Concerto: Joint 2D-3D Self-Supervised Learning Emerges Spatial Representations](https://huggingface.co/papers/2510.23607). |
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- **Paper:** [Concerto: Joint 2D-3D Self-Supervised Learning Emerges Spatial Representations](https://huggingface.co/papers/2510.23607) |
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- **Project Page:** [https://pointcept.github.io/Concerto/](https://pointcept.github.io/Concerto/) |
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- **Codebase:** [https://github.com/Pointcept/Pointcept](https://github.com/Pointcept/Pointcept) |
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## Abstract |
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Humans learn abstract concepts through multisensory synergy, and once formed, such representations can often be recalled from a single modality. Inspired by this principle, we introduce Concerto, a minimalist simulation of human concept learning for spatial cognition, combining 3D intra-modal self-distillation with 2D-3D cross-modal joint embedding. Despite its simplicity, Concerto learns more coherent and informative spatial features, as demonstrated by zero-shot visualizations. It outperforms both standalone SOTA 2D and 3D self-supervised models by 14.2% and 4.8%, respectively, as well as their feature concatenation, in linear probing for 3D scene perception. With full fine-tuning, Concerto sets new SOTA results across multiple scene understanding benchmarks (e.g., 80.7% mIoU on ScanNet). We further present a variant of Concerto tailored for video-lifted point cloud spatial understanding, and a translator that linearly projects Concerto representations into CLIP's language space, enabling open-world perception. These results highlight that Concerto emerges spatial representations with superior fine-grained geometric and semantic consistency. |
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## Usage |
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For detailed installation, data preparation, training, and testing instructions, please refer to the [official GitHub repository](https://github.com/Pointcept/Pointcept). |
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## Citation |
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If you find Concerto or the Pointcept codebase useful in your research, please cite the following papers: |
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```bibtex |
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@misc{pointcept2023, |
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title={Pointcept: A Codebase for Point Cloud Perception Research}, |
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author={Pointcept Contributors}, |
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howpublished = {\url{https://github.com/Pointcept/Pointcept}}, |
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year={2023} |
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} |
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@article{zhang2025concerto, |
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title={Concerto: Joint 2D-3D Self-Supervised Learning Emerges Spatial Representations}, |
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author={Zhang, Yujia and Wu, Xiaoyang and Lao, Yixing and Wang, Chengyao and Tian, Zhuotao and Wang, Naiyan and Zhao, Hengshuang}, |
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journal={Conference on Neural Information Processing Systems}, |
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year={2025}, |
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} |
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``` |
