We propose a fast filtered backprojection ( FBP) algorithm for CT fan-beam involving collinear equispaced detectors. 我们提出了一种快速的扇束等距CT滤波反投影重建算法。
The collinear equation was transformed including the scale of feature points on target, and the3D pose angle of target was obtained by solving the nonlinear equations. 推导出含特征点坐标比例的共线方程,采用迭代求解获得目标姿态参数;
The longitudinal elastic wave transmission through a coupling joint of two collinear semi-infinite beam structures is investigated by using wave theory approach. 采用波动分析法研究了纵向弹性波在两半无限梁耦合点的传播。
Analyzing the periodic orbits around the collinear liberation points 最近分数,最近有理近似法共线平动点附近周期轨道的分析研究方法
Based on the invariance of cross-ratio and the collinear property of all points for one dimensional target, a global calibration method of multi-vision sensor system is proposed. 基于交比不变性原理和一维靶标点共线的特点,提出了一种多视觉传感器全局校准方法。
Finite element simulation of fatigue crack growth of MSD with multiple collinear holes on finite plate 有限板共线多孔MSD疲劳裂纹扩展有限元模拟
In the square chart of nucleus with new parameters S and H, upper limits of nucleus with odd A for stable region are shown graceful regularities of three points collinear symmetry. 在新参量S、H正方形核素图中,稳定区奇A核素的上界表现出优美的三点共线对称组。
The collinear libration point L2 of the earth-moon system plays an important role in exploration of the back of the moon for its relatively fixed position with respect to the earth and the moon. 地&月系共线平动点L2相对地球和月球不变的空间位置使得它在月球背面探测任务中起着十分重要的作用。
The antiplane shear problems of collinear cracks at the interface of dissimilar anisotropic materials aredealt with. 本文研究两种各向异性材料界面共线裂纹的反平面剪切问题。
First Fundamental Problems of Anisotropic Elastic Plane Weakened by Periodic Collinear Cracks 被周期共线裂纹削弱的各向异性弹性平面的第一基本问题
Considering the advantages of partial least square ( PLS) in dealing with collinear data, it is used to predict silicon content. 考虑到偏最小二乘法(PLS)在处理多重共线性数据中的优势,利用PLS对高炉铁水含硅量进行预测。
Design and Development Example of a Certain Collinear Conversational System Circuit 一种共线对讲系统电路设计与开发实例
Finite Element Analysis on SIF of a Number of Collinear Holes on MSD Finite Plate 有限板共线多孔MSD应力强度因子有限元分析
Analysis and numerical calculation of mode conversion efficiency in collinear acoustooptic interaction 共线声光可调滤波器共线声光模式转换效率的分析与计算
Pascal's Theorem: The points of intersection of the pairs of opposite sides of a hexagon inscribed in a conic are collinear. 帕司卡定理:给定一个圆上的六边形,则此六边形三对对边直线的交点在同一直线上。
"Test method for sheet resistance of silicon epitaxial, diffused and ion-implanted layers using a collinear four-probe array" GB/T14141-1993硅处延层、扩散层和离子注入层薄层电阻的测定直排四探针法
The numerical methods of solving the collinear N-body problem are studied in detail. 研究N体问题共线解的数值方法。
By analyzing collinear equation and adopting absolute orientation method, the stereo pair of photos is relatively oriented. 通过解析共线条件方程式,利用相对定向直接法进行像对的相对定向。
The electroelastic interaction between a piezoelectric screw dislocation and collinear interfacial rigid lines is studied. 研究了压电材料中压电螺型位错和共线界面导电刚性线夹杂的电弹干涉效应。
In this paper we consider only finite planar point sets in which no three points are collinear. 本文讨论平面上无三点共线的有限点集。设P为一个无三点共线的有限平面点集。
Let P be a set of n points in the plane, no three collinear. 设P为平面中n个点的集合,其中无三点共线。
The dynamic response of an elastic narrow plate with two collinear Griffith cracks under in-plane impact loading is investigated. 本文研究了含有两个共线Griffith裂纹的弹性长板条,在面内压缩冲击载荷作用下的瞬态响应。
Calculation of residual strength is performed for Dugdale model of symmetric collinear MSD panel by proposed approach. 为了验证所提方法的合理性,针对对称共线多裂纹的MSD壁板的Dugdale模型进行了剩余强度估算。
The coaxial collinear printed dipole structure can be easily used to improve gain and form arrays with good coherence. 采用新型同轴直排印刷振子天线结构,易于提高增益和组阵,具有良好的一致性。
Scattering of SH-wave by a radial collinear crack at the edge of arbitrary-shape-cavity in isotropy media is studied. 研究了各向同性介质中任意形孔边径向裂纹对SH波的散射,求解了裂纹尖端的动应力强度因子。
The tuning properties of collinear and noncollinear QPM are discussed respectively. 分别讨论了共线和非共线准相位匹配的调谐特性。
The effects of mutual coupling on the parallel antenna array and the collinear antenna array are investigated. 研究了互耦效应分别对平行天线阵列和共线天线阵列阵元间空间相关性的影响。
The scheme of beam combination based on collinear construction and non-collinear construction were designed respectively. 分别设计了基于共线结构和非共线结构的串行激光组束方案。