Method and apparatus for CT image reconstruction

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United States of America Patent

PATENT NO 8724889
APP PUB NO 20120106832A1
SERIAL NO

13140761

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for CT image reconstruction may include selecting, by a unit, projection data of the same height on a curve having a curvature approximate to that of the scanning circular orbit, implementing, by a unit, a weighting processing on the selected projection data, filtering, by a unit, the weighting processed projection data along a horizontal direction, implementing, by a unit, three-dimensional back projection on the filtered projection data along the direction of ray. The method and apparatus can effectively eliminate cone beam artifact under a large cone angle.

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Patent Owner(s)

  • NUCTECH COMPANY LIMITED;TSINGHUA UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Zhiqiang Beijing, CN 400 2407
Huang, Zhifeng Beijing, CN 17 60
Kang, Kejun Beijing, CN 77 1174
Li, Liang Beijing, CN 443 2627
Xiao, Yongshun Beijing, CN 19 240
Xing, Yuxiang Beijing, CN 55 557
Zhang, Li Beijing, CN 2407 31689
Zhao, Ziran Beijing, CN 240 1212

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