Out-of-view ct scan detection
AssigneeJames R. Glidewell Dental Ceramics, Inc.
InventorsSergey Nikolskiy, Fedor Chelnokov, Grant Karapetyan
Life of this patent
Estimating the term…
Abstract
Computer-implemented method and system automatically detects an out-of-view CT scan by receiving a voxel density file, determining a threshold iso-value of density between air density and a material density of one or more scanned objects in the voxel density file, and evaluating, using the threshold iso-value of density, one or more horizontal slices of the voxel density file to determine whether at least a portion of the one or more scanned objects is out of view.
Claims20
A computer-implemented method to automatically detect an out-of-view CT scan, comprising:
- receiving a voxel density file;
- determining a threshold iso-value of density between air density and a material density of one or more scanned objects in the voxel density file;
- and
- evaluating, using the threshold iso-value of density, one or more horizontal slices of the voxel density file to determine whether at least a portion of the one or more scanned objects is out of view,
- wherein evaluating comprises determining a vertical out of view shift.
A system of automatically detecting an out-of-view CT scan, comprising:
- a processor;
- a computer-readable storage medium comprising instructions executable by the processor to perform steps comprising:
- receiving a voxel density file;
- determining a threshold iso-value of density between air density and a material density of one or more scanned objects in the voxel density file;
- and
- evaluating, using the threshold iso-value of density, one or more horizontal slices of the voxel density file to determine whether at least a portion of the one or more scanned objects is out of view,
- wherein evaluating comprises determining a vertical out of view shift.
A non-transitory computer readable medium storing executable computer program instructions for automatically detecting an out-of-view CT scan, the computer program instructions comprising instructions for:
- receiving a voxel density file;
- determining a threshold iso-value of density between air density and a material density of one or more scanned objects in the voxel density file;
- and
- evaluating, using the threshold iso-value of density, one or more horizontal slices of the voxel density file to determine whether at least a portion of the one or more scanned objects is out of view,
- wherein evaluating comprises determining a vertical out of view shift.
Dependencies are inferred from the claim text.