The averaging procedure is therefore unsuitable for correction and systematic error on each line has to be separately computed.
给系统误差适当约束，即可求解出各测线的系统误差。分别校正系统误差和随机误差，便完成闭合差校正。
Conclusion the cone beam ct and on-line correction could reduce the setup error.
结论锥束CT扫描在线校正能够缩小摆位误差。
Conclusion the cone beam ct and on-line correction could reduce the setup error.
结论锥束CT扫描在线校正能够缩小摆位误差。
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