Publications

Query-Time Calibration of CLIP Features for Open-Vocabulary 3D Segmentation
Dominik Engel, Yousef Rajeh, Leon Sick, Ivan Viola (2026). Query-Time Calibration of CLIP Features for Open-Vocabulary 3D Segmentation. arXiv preprint (arXiv).

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OV-Foam: How 3D Representations Shape Semantic Feature Lifting
Yousef Rajeh, Alejandra Esparza Pelcastre, Ivan Viola, Dominik Engel (2026). OV-Foam: How 3D Representations Shape Semantic Feature Lifting. arXiv preprint.

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S2D: Sparse-To-Dense Keymask Distillation for Unsupervised Video Instance Segmentation
Leon Sick, Lukas Hoyer, Dominik Engel, Pedro Hermosilla, Timo Ropinski (2026). S2D: Sparse-To-Dense Keymask Distillation for Unsupervised Video Instance Segmentation. Advances in Neural Information Processing Systems (NeurIPS), 2026 (accepted).

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NormLift: From Lifted Features To Semantic Reliability In 3D Gaussian Splatting
Yihan Zang, Da Li, Dominik Engel, Shinkyu Park, Ivan Viola (2026). NormLift: From Lifted Features To Semantic Reliability In 3D Gaussian Splatting. Advances in Neural Information Processing Systems (NeurIPS), 2026 (accepted).

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EfficientMonoHair: Fast Strand-Level Reconstruction from Monocular Video via Multi-View Direction Fusion
Da Li, Dominik Engel, Deng Luo, Ivan Viola (2026). EfficientMonoHair: Fast Strand-Level Reconstruction from Monocular Video via Multi-View Direction Fusion. Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR).

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ARCOL: Aspect Ratio Constrained Orthogonal Layout
Zainab Alsuwaykit, Yousef Rajeh, Alexandre Kouyoumdjian, Steve Kieffer, Dominik Engel, Sara Di Bartolomeo, Martin Nöllenburg, Ivan Viola (2026). ARCOL: Aspect Ratio Constrained Orthogonal Layout. Computer Graphics Forum (CGF).

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RaRa Clipper: A Clipper for Gaussian Splatting Based on Ray Tracer and Rasterizer
Da Li, Donggang Jia, Yousef Rajeh, Dominik Engel, Ivan Viola (2025). RaRa Clipper: A Clipper for Gaussian Splatting Based on Ray Tracer and Rasterizer. Proceedings of the SIGGRAPH Asia Conference Papers (SIGGRAPH Asia).

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CutS3D: Cutting Semantics in 3D for 2D Unsupervised Instance Segmentation
Leon Sick, Dominik Engel, Sebastian Hartwig, Pedro Hermosilla, Timo Ropinski (2025). CutS3D: Cutting Semantics in 3D for 2D Unsupervised Instance Segmentation. Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV).

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A Survey on Quality Metrics for Text-to-Image Generation
Sebastian Hartwig, Dominik Engel, Leon Sick, Hannah Kniesel, Tristan Payer, Poonam Poonam, Michael Glöckler, Alex Bäuerle, Timo Ropinski (2025). A Survey on Quality Metrics for Text-to-Image Generation. IEEE Transactions on Visualization and Computer Graphics (TVCG).

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HPSCAN: Human Perception-Based Scattered Data Clustering
Sebastian Hartwig, Christian Van Onzenoodt, Dominik Engel, Pedro Hermosilla, Timo Ropinski (2025). HPSCAN: Human Perception-Based Scattered Data Clustering. Computer Graphics Forum (CGF).

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