Patent ID: 7873142
Filing Date: 2011-01-18
Classification: A61B,G06T

Abstract:
1. A method of operating imaging apparatus of the kind having a radiation source and an associated radiation detector which are moveable relative to a subject, the method comprising: (a) generating a divergent imaging beam from the radiation source; (b) moving the radiation source and the radiation detector relative to a subject in a scanning direction to generate output signals from the detector, thereby generating image data containing distortion in a direction transverse to the scanning direction; (c) changing the orientation of the radiation source in a direction transverse to the scanning direction and repeating step (b) one or more times to generate a plurality of sets of image data; (d) processing each set of image data to obtain equivalent parallel imaging beam data therefrom, corresponding to a given angle in the divergent imaging beam; and (e) combining a plurality of said equivalent parallel imaging beam data to generate a synthesized parallel imaging beam image.