{"ID":2841594,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2511.11078","arxiv_id":"2511.11078","title":"SplineSplat: 3D Ray Tracing for Higher-Quality Tomography","abstract":"We propose a method to efficiently compute tomographic projections of a 3D volume represented by a linear combination of shifted B-splines. To do so, we propose a ray-tracing algorithm that computes 3D line integrals with arbitrary projection geometries. One of the components of our algorithm is a neural network that computes the contribution of the basis functions efficiently. In our experiments, we consider well-posed cases where the data are sufficient for accurate reconstruction without the need for regularization. We achieve higher reconstruction quality than traditional voxel-based methods.","short_abstract":"We propose a method to efficiently compute tomographic projections of a 3D volume represented by a linear combination of shifted B-splines. To do so, we propose a ray-tracing algorithm that computes 3D line integrals with arbitrary projection geometries. One of the components of our algorithm is a neural network that c...","url_abs":"https://arxiv.org/abs/2511.11078","url_pdf":"https://arxiv.org/pdf/2511.11078v1","authors":"[\"Youssef Haouchat\",\"Sepand Kashani\",\"Aleix Boquet-Pujadas\",\"Philippe Thévenaz\",\"Michael Unser\"]","published":"2025-11-14T08:51:42Z","proceeding":"cs.CV","tasks":"[\"cs.CV\",\"eess.IV\",\"eess.SP\"]","methods":"[]","has_code":false}