发明授权
US08045781B2 X-ray computed tomography apparatus, reconstruction processing apparatus, and image processing apparatus
有权
X射线计算机断层摄影装置，重建处理装置和图像处理装置
- 专利标题： X-ray computed tomography apparatus, reconstruction processing apparatus, and image processing apparatus
- 专利标题（中）： X射线计算机断层摄影装置，重建处理装置和图像处理装置
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申请号： US12169963申请日： 2008-07-09
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公开(公告)号： US08045781B2公开(公告)日： 2011-10-25
- 发明人: Satoru Nakanishi , Naruomi Akino
- 申请人： Satoru Nakanishi , Naruomi Akino
- 申请人地址： JP Tokyo JP Otawara-shi
- 专利权人： Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- 当前专利权人： Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- 当前专利权人地址： JP Tokyo JP Otawara-shi
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2007-181308 20070710; JP2008-125121 20080512
- 主分类号： G06K9/00
- IPC分类号： G06K9/00
摘要：
An X-ray computed tomography apparatus scans a subject to be examined with cone beam X-rays, and generates reference volume data on the basis of projection data. This apparatus extracts a cone beam artifact component contained in the reference volume data on the basis of the typical shape and direction of the cone beam artifact component. This apparatus generates resultant volume data with the reduced cone beam artifact by subtracting the cone beam artifact component from the reference volume data.
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