title: General formula for fan-beam computed tomography.
abstract: In this Letter, we derive a general reconstruction formula for fan-beam computed tomography (CT) utilizing the two-dimensional Dirac function, which is useful in CT imaging for moving objects.
authors.affiliation: CT Lab, Radiology Department, University of Iowa, Iowa City, Iowa 52242, USA.
authors.forename: Yuchuan
authors.initials: Y
authors.lastname: Wei
authors.forename: Jiang
authors.initials: J
authors.lastname: Hsieh
authors.forename: Ge
authors.initials: G
authors.lastname: Wang
mesh_terms: D000465:Algorithms; D021621:Imaging, Three-Dimensional / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D011856:Radiographic Image Enhancement / Q000379:methods; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*