| 摘要 |
A computed tomography system having a fixed X-ray source [10] for producing a fan beam [20], a fixed digital detector [12] and a manipulator [14] for holding and rotating an object [16] to be inspected. Left and right projections of the rotated object on the fixed digital detector are used to determine a central ray, reconstruction of an image of the object being based on the central ray position. A corresponding method and apparatus are also disclosed.
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