3 papers
eess.IV2026
Geometry Calibration in Tomography with a Differentiable Ray-Based Model
Youssef Haouchat, Aleix Boquet-Pujadas, Sepand Kashani +2
Geometric misalignments between the nominal and true acquisition parameters in tomography degrade reconstructions. We propose a framework that jointly reconstructs the volume and c…
cs.CV2025
SplineSplat: 3D Ray Tracing for Higher-Quality Tomography
Youssef Haouchat, Sepand Kashani, Aleix Boquet-Pujadas +2
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 algor…
eess.IV2025
Generalized Ray Tracing with Basis functions for Tomographic Projections
Youssef Haouchat, Sepand Kashani, Philippe Thévenaz +1
This work aims at the precise and efficient computation of the x-ray projection of an image represented by a linear combination of general shifted basis functions that typically ov…