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Reconstruction computing device, reconstruction computing method, and X-ray CT apparatus
专利权人:
Hisashi Takahashi
发明人:
Hisashi Takahashi,Taiga Goto,Koichi Hirokawa
申请号:
US13635391
公开号:
US09050003B2
申请日:
2011.03.29
申请国别(地区):
US
年份:
2015
代理人:
摘要:
In order to provide a reconstruction computing device, a reconstruction computing method, and an X-ray CT apparatus capable of improving the image quality while reducing the amount of computation when reconstructing an X-ray CT image using an iterative method, a reconstruction computing device 45 divides an initial image 50 reconstructed using an analytical method such as an FBP method into a bed region 51, an object region 52, and the other air region 53, sets reconstruction conditions including at least convergence conditions and a pixel size for each of the divided regions, updates estimation images by performing an iterative process, and fixes estimation images or forward projection data of a subset satisfying the convergence conditions until other subsets satisfy the convergence conditions.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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