Two-dimensional to three dimensional transformation.
二维到三维的转换。
Three dimensional nonlinear datum transformation is widely used in geodesy and photogrammetry.
三维基准转换广泛应用于大地测量和摄影测量。
This paper studies the transformation matrixes for perspective projection and axonometric projection, deduces the general matrix for three dimensional graphic transformation.
对轴测投影和透视投影变换矩阵进行了研究，推出了三维图形变换的统一矩阵。
Through studying the relationship between space vectors of different coordinate systems, a new model of three-dimensional datum transformation is proposed.
从空间几何角度出发，利用空间向量的关系研究坐标转换，提出一种新的三维基准转换模型。
This paper with elementary transformation of matrix discusses some properties of a set of vectors in finite dimensional vector space and the theory basis of this method is given.
该文利用矩阵的初等变换解决有限维向量空间中向量组的线性性质的有关问题，并给出了这种方法的理论依据。
Objective To explore characteristic imaging and diagnostic value of cavernous transformation of the portal vein (CTPV) using two-dimensional color Doppler ultrasonography.
目的探讨门静脉海绵样变性的二维彩色多普勒超声的声像图特征及诊断价值。
Many of the exact solutions of (3 + 1) dimensional breaking soliton equation are obtained by using a simple transformation relation and solving the ordinary differential equation.
首先通过变换关系和求解简单的常微分方程，得到了(3 +1)维破裂孤子方程丰富的孤立波解和周期波解。
Using three-dimensional space vectors, this paper describes a simple method for detecting the distorted current without any coordinate transformation.
利用三维空间矢量，提出了一种新型的无需坐标变换的三相电路畸变电流检测方法。
An improved adjoint operator method is employed to compute the third order normal form of six dimensional nonlinear dynamical systems and the associated nonlinear transformation for the first time.
本文首次用一种改进的共轭算子法研究了六维非线性系统的三阶规范形以及所用的非线性变换。
It transforms the double-differential carrier observation equation using null space transformation so that it need not to resolve real-time three-dimensional position parameters.
对单个历元的双差载波相位观测方程进行零空间变换，避免了实时变化的三维位置参数求解；
According to this point of view the transmission and scattering in multilayer dielectric waveguides can be regarded as coordinate transformation of a vector in ann-dimensional vector space.
根据这种观点，多层介质波导中波的传播和散射可以归结为多维空间向量的坐标变换，并可用传输线和网络表示。
Using this computational format the transformation frame multiple-dimensional problem with complex geometry shape into one-dimensional problem is realized, so that computation precision is increased.
在该计算格式中，实现了几何形状复杂的多维问题向一维问题的转换，从而提高了有限元离散节点的计算精度。
The temperature of a three dimensional nonstatic black hole is given. The compensate effect under time scale transformation in the space time is studied.
给出了三维黑洞温度，研究了该时空时间尺度变换的补偿效应。
This paper presents a method which can be used for the shape analysis of two-dimensional image of a moving object in terms of the fast transformation (r transformation).
本文提出了将一种快速变换(r变换)用于对运动目标的二维图象进行形状分析的方法。
In this paper, the basic principle and transformation process and transformation example of the three-dimensional separate regression method are introduced.
详细介绍了三维分离回归法的基本原理、转换过程及转换实例。
Proton NMR two dimensional time-domain data are collected based on the inversion-recovery technique. Double Fourier transformation of those data yields the two dimensional frequency-domain data.
基于反转恢复法建立质子nmr二维时域数据，经双重付里叶变换获得二维频域数据。
By applying formal asymptotic analysis and Laplace transformation, we obtain two-dimensional model system of linearly viscoelastic "flexural" shell from three-dimensional equations.
应用形式渐近分析和拉普拉斯变换，我们从三维线性粘弹性方程组得到二维线性粘弹性弯壳的数学模型。
The main idea is to approximate the classical local linear embedding (LLE) by introducing a linear transformation matrix and then find the solution in a very high dimensional space by kernel trick.
其主要思想是通过引入线性变换矩阵来近似经典的局部线性嵌入(LLE)，然后通过核方法的技巧在高维空间里求解。
The proposed method is able to construct an ambiguity transformation matrix directly using high dimensional Gauss-transformation instead of using two- dimensional Gauss-transformation repeatedly.
转换后的矩阵可以直接利用多维高斯变换，而不用将两维的高斯变化多次使用。
Three dimensional nonlinear and isoparameter FEM has been successfully used to simulate the transient temperature field, phase transformation, stress and strain of complex components during quenching.
采用非线性等参元三维有限元算法（FEM）成功地模拟了形状复杂的零件淬火过程中瞬态温度场、相变、应力和应变，获得直观的立体图象。
The nonorthogonal velocity is measured by LDV, from which the orthogonal three-dimensional components are computed through transformation equation.
而必须使用非正交lDV系统先测量得到非正交的三维速度，然后通过变换方程求得正交三维速度。
A three-dimensional numerical model for laser surface transformation hardening of metals using the finite differential technique is given in this peper.
给出了用有限差分法对金属材料激光相变硬化过程建立的三维数值模型。
Moreover, it is difficult to implement a description of the wave front and the transformation of three-dimensional system of coordinates.
其次有关波前面的描述和三维坐标系之间的变换也是个难点。
The steel plant process has been modeled as a multi-dimensional mass-flow control system in which the transformation of mass states, mass properties and flow control have been mixed.
本文将钢铁制造流程模化为物态转变、物性控制和物流控制相互融合的多维物流控制系统。
The three-dimensional diagrams are provided for explaining the shear process of K-S relation in a (?) m transformation.
为m相变机制中k - S关系切变过程提供了直观的立体图解。
The four-dimensional space-time of special relativity is augmented with a fifth dimension to take into account the gauge transformation of the electromagnetic potentials.
本文从电磁势的规范变换出发引入第五维空间和一个新场量。
In the paper, the three-dimensional standard parabolic equation(SPE) and near-to-far-field transformation are deduced, and the radar cross section(RCS) of a perfectly conducting sphere is calculated.
文章推导了三维标准的抛物线方程及相应的近场-远场变换理论，并计算了理想导体球的雷达散射截面；
In the paper, the three-dimensional standard parabolic equation(SPE) and near-to-far-field transformation are deduced, and the radar cross section(RCS) of a perfectly conducting sphere is calculated.
文章推导了三维标准的抛物线方程及相应的近场-远场变换理论，并计算了理想导体球的雷达散射截面；
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