Title :
The pyramid structure and its application to binary image reconstruction from two projections
Author :
Bao, Y. ; Oswald, H. ; Fleck, E.
Author_Institution :
Deutsches Hertzzentrum Berlin, West Germany
Abstract :
A pyramid approach is developed and implemented for reconstructing binary patterns from two orthogonal projections. The binary patterns are first reconstructed in a lower spatial resolution and then refined from level to level in the pyramid structure with an improving spatial resolution. The algorithm is compared with a model-based algorithm, which reconstructed the binary patterns directly in the required resolution. The performance of the pyramid algorithm is investigated from the viewpoint of processing speed and reconstruction quality. It is concluded that the multiresolutional image-reconstruction technique is superior to direct methods
Keywords :
pattern recognition; picture processing; binary image reconstruction; binary patterns; model-based algorithm; multiresolutional image-reconstruction technique; orthogonal projections; processing speed; pyramid structure; reconstruction quality; spatial resolution; Blood; Cardiology; Equations; Filling; Image reconstruction; Image resolution; Modems; Reconstruction algorithms; Shape; Spatial resolution; X-ray imaging;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.115851
