Image reconstruction from cone-beam data on a circular short-scan

Frederic Noo; Dominic J. Heuscher

doi:10.1117/12.467199

9 May 2002 Image reconstruction from cone-beam data on a circular short-scan

Frederic Noo, Dominic J. Heuscher

Proceedings Volume 4684, Medical Imaging 2002: Image Processing; (2002) https://doi.org/10.1117/12.467199
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

3D image reconstruction from cone-beam projections on a circular short-scan is analyzed using the tools of CB reconstruction theory. By definition, CB Data on a circular short-scan do not provide enough information for exact reconstruction outside the plane of the source path. However, circular short-scans are attractive in many applications due to practical constraints on the data acquisition geometry. This work attemps at determining the optimal tomographic capabilities of CB imaging with circular short-scan. Two new algorithms are suggested for reconstruction and tested on the FORBILD head phantom with a large cone angle. The results are very encouraging.

Citation Download Citation

Frederic Noo and Dominic J. Heuscher "Image reconstruction from cone-beam data on a circular short-scan", Proc. SPIE 4684, Medical Imaging 2002: Image Processing, (9 May 2002); https://doi.org/10.1117/12.467199

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