System and method for image reconstruction
AssigneeGeneral Electric Company
InventorsJed Douglas Pack, Kai Zeng, Zhye Yin
Life of this patent
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Abstract
A method of performing a computed tomographic image reconstruction is provided. The method provides for performing a short scan of an imaging object to acquire a short scan data, performing a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting functions, filtering the plurality of image volumes such that when the volumes are added together, the frequency domain data is substantially uniformly weighted. Further, the method provides for combining the plurality of image volumes together to produce a final image volume.
Claims22
A method of performing computed tomography image reconstruction comprising:
- performing a short scan of an imaging object to acquire a short scan data;
- performing a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the plurality of image reconstructions use different view weighting functions;
- filtering the plurality of image volumes such that when the plurality of image volumes are added together, the frequency domain data is substantially uniformly weighted;
- and
- combining the plurality of image volumes together to produce a final image volume.
A tomographic imaging apparatus comprising:
- a computer programmed to:
- perform a short scan of an imaging object to acquire a short scan data;
- perform a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting functions;
- filter the plurality of image volumes such that when the plurality of image volumes are added together, the frequency domain data is substantially uniformly weighted;
- and
- combining the plurality of image volumes together to produce a final image volume;
- and
- a display unit for displaying the final image volume.
A non-transitory computer readable media embodying instructions, which when executed by a processor cause the computer to perform a method comprising:
- performing a short scan of an imaging object to acquire a short scan data;
- performing a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting function;
- filtering the plurality of image volumes such that when the plurality of image volumes are added together, the frequency domain data is substantially uniformly weighted;
- and
- combining the plurality of image volumes together to produce a final image volume.
Dependencies are inferred from the claim text.