Sampling data for BRDF is analyzed with Spherical Harmonics, and then the BRDF surface could be rendered fast under environment illumination.

A3-D face model is constructed by the imaging theory and spherical harmonics, combining with the principle of3-D projection and PCA.

根据3-D数据的优势，利用图像成像原理和球面调和函数理论，结合3-D投影原理和PCA技术建立了一个3-D人脸模型。

According as the expanding of spherical harmonics of the gravitational potential, the radial correction formula and the estimating error model are given.

依据地球引力位球谐展开，推导了重力梯度张量的径向归算改正公式，并给出改正误差估算模型。

In addition, the ray effect in the spherical harmonics approximation mitigates with increasing optical thickness within gray medium.

同时，球谐函数法的射线效应随光学厚度的增加而减小。

The two components have identical vertical structure and physical process. The global spectral model component uses spherical harmonics as horizontal basis functions.

这两部分采用相同的垂直结构和物理过程，都用球谐函数作为水平基本函数。

In this paper the barotropic vorticity equation, expanded with spherical harmonics is integrated.

本文积分了球面函数展开的正压涡度方程。

Ladder operator and recurrence relations of spherical harmonics

阶梯算符与球谐函数的递推关系

Ladder Operators and Spinor Spherical Harmonics Spectral Analysis of Model Climate with Spherical Harmonics Function

阶梯算子和旋量球函数模式气候的球谐谱分析

Simplified Spherical Harmonics Method for Self-Adjoint Angular Flux Transport Equation in Unstructured Geometry

非结构几何下二阶自共轭中子输运方程中的简化球谐函数方法研究

The Application of Fourier and Spherical Harmonics to Medium-range Forecasting of Cold Waves

球谐函数展开在寒潮中期预报上的应用

False Scattering and Ray Effect in Spherical Harmonics Approximation for the Radiative Transfer Equation

球谐函数法求解辐射传输方程的假散射和射线效应

Simplified Spherical Harmonics Method for Neutron Time-Space Kinetics Calculation in Complex Environment

用于复杂环境下中子时空动力学计算的简化球谐函数方法

3-D Face Recognition Method Based on Spherical Harmonics

基于球面调和函数的3-D人脸识别方法

A 3D Model Similarity Matching Algorithm Based on Spherical Harmonics Descriptor

一种基于球面调和描述子的3维模型相似性比较算法

Research on Fast Lighting on the Diffuse Surface Using Spherical Harmonics

基于球面调和函数的漫反射表面快速光照技术的研究

Spherical Harmonics Method for Object Image Synthesis under Changing of Illumination

变化光照目标图像合成的球调和方法

Analysis of multiple scattering theory by expanding on the spherical harmonics

基于扩展球谐函数的多次散射理论分析

Surface continuation method of finite spherical harmonics for potential fields

有限球谐位场曲面延拓方法

According to the spherical harmonics expansion of the Earth's gravitational potential in this paper, the accuracy estimation formulas of the potential coefficient model are derived by the components of gravity gradient tensor.

本文根据地球引力位的球谐函数展开式，利用重力梯度张量各分量导出了位系数模型的精度估计公式。

This paper has investigated the expression on rotational motion of earth's surface and Earth's deformation fields with complex vector surface spherical harmonic function, theoretical definition of the crust-fixed reference frames and the terrestrial reference system, and theoretical substantiating to the consistency between them.

本文研究了内核地球模型下的地球表面的旋转运动和地球形变场的复数矢量球函数表示，以及外壳固定参考架、地球参考系的理论定义和它们之间等价性的理论证明。

The scattering coefficient and differential scattering cross section ( DSCS) are derived by expanding the field with the vector spherical harmonic function and discussing the light scattering from the defect particals on the wafer.

通过对场进行矢量球谐函数展开，就基片上缺陷粒子的光散射问题展开讨论，推导求解出散射系数及微分散射截面。