• Corpus ID: 239024762

Cutting Voxel Projector a New Approach to Construct 3D Cone Beam CT Operator

  title={Cutting Voxel Projector a New Approach to Construct 3D Cone Beam CT Operator},
  author={Vojtech Kulvait and Georg Rose},
In this paper, we introduce a new class of projectors for 3D cone beam tomographic reconstruction. We find analytical formulas for the relationship between the voxel volume projected onto a given detector pixel and its contribution to the extinction value detected on that pixel. Using this approach, we construct a near-exact projector and backprojector that can be used especially for algebraic reconstruction techniques. We have implemented this cutting voxel projector and a less accurate, speed… 
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