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Continuous time‐dependence in computed tomography
Author(s) -
Holden James E.,
Ip Wingfat R.
Publication year - 1978
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.594458
Subject(s) - projection (relational algebra) , computed tomography , iterative reconstruction , computer science , tomography , algorithm , object (grammar) , computer vision , artificial intelligence , physics , optics , radiology , medicine
Computed tomography is sensitive to changes in the imaged distribution during acquisition of the projection data. Previous investigations have emphasized discrete or discontinuous changes in the imaged object. Recent advances have motivated our investigation of object time‐dependence characterized by a continuous function in time at each point. Formal mathematical and computer simulation approaches have been developed, and are presented along with simple examples of their applications. Further applications in three distinct ongoing studies are outlined.