spherical harmonics

Ladder operator and recurrence relations of spherical harmonics

阶梯算符与球谐函数的递推关系

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

物体表面双向反射分布函数的采样数据利用球面调和函数系进行分析，然后可以在环境光源下作快速绘制。

In comparison with model climate analysis by use of the EOF, the spherical harmonics spectral analysis can better reveal the physical pattern of atmospheric waves.

与用经验正交函数（EOF）对模式气候作分析不同，球谐波谱分析能清晰显示大气波动的物理图像，尤其是全球大气低频波。

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

First, with specific lighting conditions, we pre-compute the scene with spherical harmonics functions and encode it as low storage cost SH coefficients.

首先，根据特定光照条件，利用球面谐波函数对场景信息进行预计算，将其编码为低存储需求的SH系数。

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

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。

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。

The prevalent formula for nonzero perturbation matrix in the secular equation is gained by the perturbation theory in degenerate state and property of spherical harmonics function.

本文应用简并态微扰理论和球谐函数的性质，得到久期方程中非零微扰矩阵元普遍表达式。

Using the three dimentional conformal mapping and a approximation of finite expansion of spherical harmonics, the potential field data in an arbitrary surface are projected to level plane.

本文采用三维保角映射和有限球谐展开方法，将非水平观测面上的位场数据，延拓到同一水平面上。

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

Surface continuation method of finite spherical harmonics for potential fields

有限球谐位场曲面延拓方法

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

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。

Based on the generalized Lorenz-Mie theory ( GLMT), the incident fundamental Gaussian beam is expanded in terms of the vector spherical harmonics.

从广义米理论出发，将入射高斯波束用矢量球谐函数展开。

We research the spherical harmonics express of Lambert re-flection and propose a pure image based rendering method to synthesis image under arbitrary illumination condition based on spherical harmonics.

研究了朗伯反射的球调和表示，提出了一种基于球调和函数的任意光照目标图像生成方法。

Recurrence relations of the surface spherical harmonics in the development of the tidal generating potential

引潮位展开中的面球谐函数及其递推公式

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

Dispersive Calculation of Global Illumination Based on Spherical Harmonics Method

利用球谐方法分散计算场景的全局光照

Spectral Analysis of Model Climate with Spherical Harmonics Function

模式气候的球谐谱分析

P3 Approximation in Spherical Harmonics Method for Radiative Transfer Equation and Application in Biological Tissues

球谐函数法解点源辐射传输方程的P3近似及其在生物组织中的应用

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

Satellite orbit perturbation caused by zonal spherical harmonics in the earth's gravitational field

地球引力场带谐调和项引起的卫星轨道摄动

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

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。

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

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 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。

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