ResearchResearch paperComputer Vision · Robotics & Embodied AI1 source · Oct 7, 2026

Gradient-Based Trajectory Optimisation over Continuous Poses for Sparse-View Cone-Beam CT

Trajectory optimisation for cone-beam computed tomography (CT) determines which information sparse-view scans acquire.

Key points

  • We make every source pose an individual continuous variable and move all poses jointly by gradient ascent on the scanner's kinematic manifold.
  • The objective combines soft-Tuy plane coverage, continuous View Covariance Loss, and an analytic attenuation-aware ray-bundle penalty.
  • Sparseprescan planning benefits from matching prescan and planned acquisition manifolds.
  • Continuous pose optimisation incorporates attenuation and scanner constraints directly into sparse-view acquisition design.

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