Title :
Geometry-free X-ray reconstruction using the theory of convex projections
Author :
Oskoui-Fard, Peyma ; Stark, Henry
Author_Institution :
Dept. of Electr., Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
The authors apply the method of projections onto convex sets (POCS) to reconstruct an image in computer tomography. Although POCS has been used before to recover missing portions of the data set, this is the first time that it is directly used to invert raysum data. Since POCS is geometry-free, it can be directly applied to cases of incomplete data. The strength of POCS compared to other geometry-free methods is its systematic use of a priori information in a natural and consistent way along with the raysum data
Keywords :
computerised picture processing; computerised tomography; X-ray reconstruction; a priori information; computer tomography; convex projections; data set; geometry-free; image reconstruction; raysum data; Computed tomography; Design for manufacture; Image reconstruction; Inspection; Iterative algorithms; Pixel; Subspace constraints; Systems engineering and theory; X-ray imaging; X-ray tomography;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.196726
