 |
My ICIP 2006 Schedule
Note: Your custom schedule will not be saved unless you create a new account or login to an existing account.
Paper Detail
| Paper: | MP-P4.3 |
| Session: | Biomedical Image Reconstruction |
| Time: | Monday, October 9, 14:20 - 17:00 |
| Presentation: |
Poster |
| Topic: |
Biomedical Imaging: Tomography |
| Title: |
FAST ITERATIVE ADAPTIVE RECONSTRUCTION IN LOW-DOSE CT IMAGING |
| Authors: |
Lin Cheng; Carnegie Mellon University | | | | | Yunqiang Chen; Siemens Corporate Research, Inc. | | | | | Tong Fang; Siemens Corporate Research, Inc. | | | | | Jason Tyan; Siemens Corporate Research, Inc. | | |
| Abstract: |
Traditional iterative tomographic reconstruction methods resort to gradient decent methods and require significant computation due to slow convergence. We divide the iterative reconstruction into two stages in the image and Radon spaces, respectively. First, we refine the reconstruction result by image space adaptive filtering. This finds a feasible update direction based on signal modeling. Second, we minimize the discrepancy between the sinograms along the update direction in Radon space and guarantee convergence. Reconstruction from clinical data using the proposed algorithm converges extremely fast and provides satisfactory reconstruction results in far fewer iterations than traditional methods. |
|
