## Volume fusion for two-circular-orbit cone-beam tomography

Applied Optics, Vol. 45, Issue 23, pp. 5960-5966 (2006)

http://dx.doi.org/10.1364/AO.45.005960

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### Abstract

By using the Feldkamp–Davis–Kress (FDK) algorithm, we can efficiently produce a
digital volume, called the FDK volume, from cone-beam data acquired along a circular scan
orbit. Due to the insufficiency of the cone-beam data set, the FDK volume suffers from nonuniform
reproduction exactness. Specifically, the midplane (on the scan-orbit plane) can
be exactly reproduced, and the reproduction exactness of off-midplanes decreases as the
distance from the midplane increases. We describe the longitudinal falling-off
degradation by a hatlike function and the spatial distribution over the object domain by
an exactness volume. With two orthogonal circular scan orbits, we can reconstruct two
FDK volumes and generate two exactness volumes. We propose a volume fusion scheme
to combine the two FDK volumes into a single volume. Let

© 2006 Optical Society of America

**OCIS Codes**

(100.6890) Image processing : Three-dimensional image processing

(110.6880) Imaging systems : Three-dimensional image acquisition

(110.6960) Imaging systems : Tomography

**History**

Original Manuscript: November 2, 2005

Revised Manuscript: February 20, 2006

Manuscript Accepted: March 14, 2006

**Virtual Issues**

Vol. 1, Iss. 9 *Virtual Journal for Biomedical Optics*

**Citation**

Zikuan Chen and Ruola Ning, "Volume fusion for two-circular-orbit cone-beam tomography," Appl. Opt. **45**, 5960-5966 (2006)

http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-23-5960

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