SYSTEM AND METHOD FOR IMAGE RECONSTRUCTION
First Claim
1. 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.
1 Assignment
0 Petitions
Accused Products
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.
44 Citations
22 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. 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.
-
-
22. A 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.
-
Specification