Title
Optimization of acquisition geometry for intra-operative tomographic imaging.
Abstract
Acquisition geometries for tomographic reconstruction are usually densely sampled in order to keep the underlying linear system used in iterative reconstruction as well-posed as possible. While this objective is easily enforced in imaging systems with gantries, this issue is more critical for intra-operative setups using freehand-guided data sensing. This paper investigates an incremental method to monitor the numerical condition of the system based on the singular value decomposition of the system matrix, and presents an approach to find optimal detector positions via a randomized optimization scheme. The feasibility of this approach is demonstrated using simulations of an intra-operative functional imaging setup and actual robot-controlled phantom experiments.
Year
DOI
Venue
2012
10.1007/978-3-642-33454-2_6
Lecture Notes in Computer Science
Field
DocType
Volume
Iterative reconstruction,Singular value decomposition,Computer vision,Tomographic reconstruction,Linear system,System matrix,Computer science,Imaging phantom,Artificial intelligence,Detector
Conference
7512
Issue
ISSN
Citations 
Pt 3
0302-9743
3
PageRank 
References 
Authors
0.63
4
5
Name
Order
Citations
PageRank
Jakob Vogel1768.85
Tobias Reichl21039.78
José Gardiazabal3506.08
Nassir Navab46594578.60
Tobias Lasser59716.81