Digitale Medien
Springer
Numerische Mathematik
56 (1989), S. 371-383
ISSN:
0945-3245
Schlagwort(e):
AMS(MOS): 65 R 10
;
CR: 61.2
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Mathematik
Notizen:
Summary In the present paper we study truncated projections for the fanbeam geometry in computerized tomography. First we derive consistency conditions for the divergent beam transform. Then we study a singular value decomposition for the case where only the interior rays in the fan are provided, as for example in region-of-interest tomography. We show that the high angular frequency components of the searched-for densities are well determined and we present reconstructions from real data where the missing information is approximated based on the singular value decomposition.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01396611
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