Predicting artifacts in 3d imaging
OwnerMaximilian Rohleder, Björn Kreherinventors
Life of this patent
Estimating the term…
Abstract
A method of estimating artifacts in 3D imaging by providing a 3D mask representing an object. X-rays of an X-ray source-detector pair are simulated through the object in a plurality of projection positions of the X-ray source-detector pair moving along a pregiven trajectory. An artifact value is assigned to each voxel of a 3D artifact image depending on respective path lengths of the X-rays through the 3D mask. Visualizing a respective artifact map for a current C-arm tilt enables an interactive optimization of a C-arm tilt.
Claims18
A method of estimating artifacts in three-dimensional (3D) imaging, the method comprising:
- providing a 3D mask representing an object;
- simulating X-rays of an X-ray source-detector pair through the object in a plurality of projection positions of the X-ray source-detector pair moving along a pregiven trajectory;
- and
- assigning an artifact value to each voxel of a 3D artifact image depending on respective path lengths of the X-rays through the 3D mask.
A X-ray device comprising:
- an X-ray source-detector pair;
- and
- a control unit configured to:
- provide a 3D mask representing an object;
- simulate X-rays of the X-ray source-detector pair through the object in a plurality of projection positions of the X-ray source-detector pair moving along a pregiven trajectory;
- and
- assign an artifact value to each voxel of a 3D artifact image depending on respective path lengths of the X-rays through the 3D mask.
Dependencies are inferred from the claim text.