The proposed algorithm is based on the symmetry projection information implied in the sinogram and the following law: in relation to the two symmetrical projection views,the transmission path of the X-ray which passes through the COR of the rotating table is the same.
本文在详细分析了现存旋转中心确定方法不足的基础上,提出了一种新方法,该方法利用隐含在正弦图中的对称投影信息,并根据经过旋转中心的射线束在两个对称投影视角下透过的物体路径相同这一规律来定位旋转中心。
In order to improve the calibration accuracy,the camera calibration method using a circular center as the control point needs to correct bias errors caused by the asymmetric projection.
采用圆心作控制点的相机标定方法需要修正由不对称投影引起的投影误差,以提高标定精度。
One Automated Method for Determination of Center of Rotation of Projection Based on Symmetry Projection for 2D-CT Computed Tomography System
基于对称投影的2D-CT系统投影旋转中心自动确定方法
The Research of Investment under Interest Rate Asymmetry Effect;
利率作用不对称性对投资的影响研究
This is called an azimuthal projection.
这种投影称作方位投影。
The Influence of Bilateral Investment Incentive by the Unsymmetrical Bargaining Power;
非对称谈判能力对双边投资激励的影响
Fast Filter Back Projection Algorithm Based on Symmetric Transformation Group
基于对称变换群的快速滤波反投影算法
Asymmetric watermarking based on Contourlet transform and subspace projection
基于Contourlet变换和子空间投影的非对称数字水印
Impacts of Asymmetric Operating Cost on the Commercialized Investment Time Selection under Duopoly Condition;
双头垄断条件下生产成本不对称对商业化投资时机的影响分析
SKEWED SYMMETRY DETECTION OF QUADRIC SURFACE SOLIDS UNDER ORTHOGRAPHIC PROJECTION
正交投影二次曲面立体图的斜置对称面检测(英文)
EXTENSION OF BUFFON PROBLEM ON COMPLEX LATTICE
BUFFON投针问题对弱对称复杂网格的推广
The Opposition alleged voter intimidation by the army.
反对党声称投票者受到军方的恐吓。
Asymmetry between Demand for and Supply of Human Capital Investment;
人力资本投资需求和供给的不对称性
Investment Behavior of Myopic Agent under Asymmetry Information;
不对称信息下短视代理人的投资行为
Game Analysis on Education Investment under Asymmetrical Information
非对称信息下的教育投资方博弈分析
The Contrastive Study on the Influences of Style upon Personal Reference and Translation;
体裁对人称指称影响的英汉对比研究及翻译
Information-asymmetry in Venture Investment and Solutions;
风险投资中的信息不对称问题及治理对策
Research on the Correlation of Institutional Investors and Non-efficiency of Investment
机构投资者对非效率投资的影响研究
The Influnce of Substitue of International Investment to China's High Investment Rate
国际投资替代对中国高投资率的影响
The Effect of Industrial Investment Structure to Investment Benefit
我国产业投资结构对投资效益的影响