Image reconstruction for truncated detector array
AssigneeKoninklijke Philips N.V.
InventorGilad Shechter
Life of this patent
Estimating the term…
Abstract
A reconstruction system reconstructs projection data generated by a detector array of an imaging system having at least one truncated row of detector modules. The reconstruction system includes a projection data generator that augments the projection data with projection data created for the at least one truncated row of detector modules. The reconstruction system further includes a convolver that convolves the augmented projection data. The reconstruction system further includes a back-projector back-projects the augmented projection data and generates volumetric image data indicative thereof.
Claims23
A reconstruction system that reconstructs projection data generated by a detector array of an imaging system having at least one truncated row of detector modules, comprising:
- a projection data generator that augments the projection data with projection data created for the at least one truncated row of detector modules;
- a convolver that convolves the augmented projection data;
- and
- a back-projector back-projects the augmented projection data and generates volumetric image data indicative thereof.
A method, comprising:
- reconstructing wide-coverage cone-beam CT projection data generated by a detector array of an imaging system, wherein the detector array includes at least one truncated outer row of detector modules and at least one non-truncated inner row of detector modules.
An imaging system, comprising:
- a radiation source that rotates around and emits radiation that traverses an examination region;
- a two dimensional truncated detector array having at least one truncated outer row of detector modules with an outer end region that does not include a detector module, wherein the detector array generates projection data indicative of the radiation traversing the examination region;
- and
- a radiation source collimator, including:
- a set of dynamic collimators;
- and
- a set of static collimators.
Dependencies are inferred from the claim text.