True three-dimensional cone-beam reconstruction (TTCR) algorithm.
A true three-dimensional cone-beam reconstruction (TTCR) algorithm for direct volume image reconstruction from 2-D cone-beam projections is developed for the complete sphere geometry. The algorithm is derived from the parallel-beam true three-dimensional reconstruction (TTR) algorithm and is based on the modified filtered backprojection technique, which uses a set of 2-D space-invariant filters. The proposed algorithm proved to be superior in spatial resolution to the parallel-beam TTR algorithm and to offer better computational efficiency.
Lee
S Z
SZ
Dept. of Radiol., Columbia Univ., New York, NY.
Ra
J B
JB
Hilal
S K
SK
Cho
Z H
ZH