Patent ID: 7835485

Claim:
A method for scattered radiation correction in x-ray imaging devices including a number of x-ray sources, movable around an examination object in at least one scanning plane during a measurement pass, the method comprising: recording, during the measurement pass, a number of x-ray projections at different projection angles with simultaneous use of the x-ray sources; determining parameters, characterizing an outer object contour in a scanning plane, from measured data of different x-ray projections; at least one of retrieving, by a signal processing device, an assigned scattered radiation distribution from a database and interpolating, by a signal processing device, a scattered radiation distribution from scattered radiation distributions for object contour sections with similar characterizing parameters, for each x-ray projection, on the basis of at least one object contour section whose characterizing parameters are determined from x-ray projections that lie at least one of in front of and behind the respective x-ray projection by a defined projection angle range; and using, by a signal processing device, the at least one of retrieved and interpolated scattered radiation distribution for correction of the measured data of a respective x-ray projection.