SCHRETTER COLAS,BERTRAM MATTHIAS,NEUKIRCHEN CHRISTOPH
申请号：
IN5791/CHENP/2011
公开号：
IN2011CN05791A
申请日:
2011.08.10
申请国别(地区):
IN
年份:
2012
代理人:
摘要：
A method and apparatus are provided to improve large field of view CT image acquisition by using at least two scanning procedures: (i) one with the radiation source and detector centered and (ii) one in an offset configuration. The imaging data obtained from both of the scanning procedures is used in the reconstruction of the image. In addition, a method and apparatus are provided for detecting motion in a reconstructed image by generating a motion map that is indicative of the regions of the reconstructed image that are affected by motion artifacts. Optionally, the motion map may be used for motion estimation and/or motion compensation to prevent or diminish motion artifacts in the resulting reconstructed image. An optional method for generating a refined motion map is also provided.
