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Lennart Bastian

5 accepted papers

2026

DisPOSE: Projected Polystochastic Diffusion for Self-Supervised Multi-View 3D Human Pose Estimation

ICML 2026poster

Recovering 3D human poses for multiple individuals from different camera views is a fundamental bottleneck for analyzing interacting behaviors. Existing self-supervised approaches leverage synthetic catalogues of 3D poses; however, this leads to poor generalization in real-world scenarios due to dis…

Cited by 0SourceScholar
2026

Learning on Higher-Order Structures with Effective Operators

ICML 2026poster

Higher-order structures are powerful relational modeling tools, yet existing spectral operators decompose topology into separate ranks, leaving practitioners to fuse information back to vertices through ad-hoc choices. We introduce _Collapsed Effective Operators_, which marginalize higher-order stru…

Cited by 0SourceScholar
2025

Copresheaf Topological Neural Networks: A Generalized Deep Learning Framework

NeurIPS 2025poster

We introduce copresheaf topological neural networks (CTNNs), a powerful unifying framework that encapsulates a wide spectrum of deep learning architectures, designed to operate on structured data, including images, point clouds, graphs, meshes, and topological manifolds. While deep learning has prof…

Cited by 0SourceScholar
2025

Forecasting Continuous Non-Conservative Dynamical Systems in SO(3)

ICCV 2025poster

Modeling the rotation of moving objects is a fundamental task in computer vision, yet SO(3) extrapolation still presents numerous challenges: (1) unknown quantities such as the moment of inertia complicate dynamics, (2) the presence of external forces and torques can lead to non-conservative kinemat…

Cited by 0SourcePDFScholar
2024

Hybrid Functional Maps for Crease-Aware Non-Isometric Shape Matching

CVPR 2024poster

Non-isometric shape correspondence remains a fundamental challenge in computer vision. Traditional methods using Laplace-Beltrami operator (LBO) eigenmodes face limitations in characterizing high-frequency extrinsic shape changes like bending and creases. We propose a novel approach of combining the…

Cited by 5SourcePDFScholar