Title :
3D-reconstruction using cone-beam backprojection, the Radon transform and linogram techniques
Author :
Axelsson-Jacobson, Caroline ; Defrise, Michel ; Danielsson, Per-Erik ; Clack, Rolf ; Noo, Frederic
Author_Institution :
Dept. of Electr. Eng., Linkoping Univ., Sweden
Abstract :
The paper investigates the application of the linogram technique to an exact cone-beam filtered-backprojection algorithm. The new algorithm is applied to simulated data for a dual orthogonal orbit, and to a single circular standard orbit. In the latter case, a new technology is proposed to compensate for the fact that the orbit does not provide complete data. The results demonstrate the image improvement allowed by the use of linograms, as well as an important speed-up of the reconstruction
Keywords :
Radon transforms; filtering theory; image reconstruction; medical image processing; radioisotope imaging; 3D-reconstruction; Radon transform; cone-beam backprojection; dual orthogonal orbit; exact cone-beam filtered-backprojection algorithm; image improvement; linogram techniques; simulated data; single circular standard orbit; Cities and towns; Detectors; Extraterrestrial measurements; Filtering; Filters; Image processing; Image reconstruction; Laboratories; Orbital calculations; Radiology;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.500247
