1) differential geometry information
微分几何信息
2) geometric information
几何信息
1.
This ability was similar to that of some nonhuman mammals(such as rats),all could only reorient in accord with the geometric information provided by the spatial environment,but could not reorient in accord with nongeometric information.
儿童的这一能力与某些低等哺乳动物(如大鼠)相似,都只能利用空间环境所构成的几何信息,不能利用非几何信息来再定向。
2.
Image-based rendering techniques have recently received much attention, Previous image-based rendering techniques can be classified into three categories according to how much geometric information is used: rendering without geometry, rendering with implicit geometry, and rendering with explicit geometry (either with approximate or accurate geometry).
基于图像的绘制技术(Image-based Rendering,IBR)近年来引起广泛的关注,目前的基于图像的绘制技术(IBR)可以根据他们依赖场景几何信息的程度分为三类:无几何信息的IBR绘制、部分几何信息的IBR绘制和全部几何信息的IBR绘制。
3) geometrical information
几何信息
1.
Existing methods concerning forming of aircraft sheet metal parts are,in our opinion,quite deficient in effectively modeling and utilizing geometrical information,causing quality to be lower than attainable and cost to be higher than necessary.
飞机钣金零件成形工件几何信息的定义是其数字化设计与制造的桥梁。
2.
Put forward three methods to extract part features through researching methods of extracting geometrical information of part features based on Solid Works.
对如何提取Solid W orks零件特征的几何信息进行了研究,提出了三种特征提取方法。
3.
The choosing of parameters,which include the overall information,geometrical information and load transmission,will effect the result greatly when using TBSA software in structure analysis.
介绍了TBSA软件总体信息、几何信息、导荷载各参数的应用心得,分析了参数对计算结果的影响。
4) information geometry
信息几何
1.
Constructs the differential manifold of stock return process based on information geometry,and gives its geometric structure such as the Fisher metric matrix and α-connection coefficients.
基于信息几何建立股票收益率满足的概率分布族所构成的微分流形,给出流形的几何结构。
2.
Since the entire extent model selection criterions for Support Vector Regression(SVR) were short of clear understanding of geometric significances,a new model selection criterion based on the theory of information geometry was proposed in this paper.
针对现有模型选择标准无法对支持向量回归(SVR)模型选择过程给出明确几何意义的弱点,提出了一种基于信息几何理论的模型选择新标准。
3.
This paper interprets geometrically the learning process and transforms the learning problem in order to minimize the divergence between the true probability distribution of the environment and the approximating distribution of the network model in view of information geometry.
从信息几何的角度,对神经网络的学习过程进行了几何描述,并将神经网络的学习问题转化为,最小化外部环境表示的真实分布与网络模型表示的逼近分布之间的"距离",并证明了对于可编码成指数簇流形的神经网络是凸规划问题。
5) Geometry information
几何信息
1.
GPS ambiguity resolution using prior geometry information as quasi observation;
先验几何信息作为伪观测值改善模糊度解算
2.
A standard entity representation in industry, multi-layer geometry information reconstruction methodology making use of constraint map from rendering triangular mesh model based on STL format file system to geometry design information in CAD model was presented.
利用STL标准文件系统表达的三角网格模型同CAD模型中几何设计信息间的约束映射关系 ,提出将三角网格实体模型重构为B -rep、几何信息集、独立于应用领域的几何信息等多层次几何信息表达方法 ,使面向虚拟设计、虚拟装配领域的应用只需对几何抽象信息表达查询而无需查询最底层的三角网格信息。
3.
Based on the geometry information of the object, we design a 3D localization method to extract the online information of the position/orientation between the robot and the object by utilizing the image information from a single camera attached in the end-effector of the robot.
本文根据操作对象的几何信息,设计了一种三维定位算法。
6) Differential geometry
微分几何
1.
PMSM control based on state variable feedback and differential geometry theory;
基于状态反馈与微分几何的PMSM控制
2.
Research on chaotic synchronization based on differential geometry theory;
基于微分几何理论的混沌同步研究
3.
Controlling chaos in permanent magnet synchronousmotor based on the differential geometry method;
基于微分几何方法的永磁同步电动机的混沌运动的控制
补充资料:网(微分几何学的)
网(微分几何学的)
net (in differential gennetry)
网艺。己G也能够用下列意义之一来定义:a)一组向量场x,C=△};b)一组一次微分式亩,使得。‘(戈)=司;“)一个仿射子。亦加月场。使得中一E(E是恒同仿射子). 在网的研究中有三个基本问题:网的内在性质,网的外在性质,以及网的可微同胚的研究. 网的内在性质是由承载网的流形的结构诱导的.例如,具有仿射联络的空间M中的网工。称为测地的(罗团留ic),如果它的所有曲线都是测地线.R渝nann流形M有无挠的、且使其度量张量是协变常量的联络,如果它具有第一类正交的tle6.oe.网(Clr娜加v心),则M是局部E川jd的.这种网与曲面上向量平行移动的联系是L .Bia以无i建立的(1922).这个联系是A.nH中月eH在仿射联络空间中定义第一类砚6皿e.网的基础. 网的外在性质是由外围空间E的结构诱导的.例如,假设定义在(n+k)维射影空间(k》l)中光滑曲面v。上的区域G内的网艺。是共扼的(印刊认,te),也就是在每一点x‘G,通过x的工。中任意两条曲线的切方向△;(x)和△叹(x)是共扼的(两个方向量共扼的,如果其中每一个方向属于切平面沿另一方向移动时的特征线).若V。不包含在维数小于n+k的射影空间内,则当k二1时V。能承载无限多个共扼网;当k=2时,一般说来V。承载唯一的共扼网,而且存在n维曲面,它没有共扼网;对于k>2,仅有特殊构造的陀维曲面才有一个共扼网.对于”>2,共扼网未必是完整的(见走3J).完整共扼网的一个特殊情形是n重共扼系(n·conj叫尹te哪tenl):网z。中每一族中沿另一族的任意一条曲线所取的曲线的切线构成可展曲面.在n十k(n)2,无)O)维射影空间中存在共扼系.在n十k(k)n)维射影空间中承载n重共辘系、且在每一点x任V。的密切空间(点x的2次微分的空间)的维数为2陀的曲面V。,首先是E.〔滋dall在“特殊射影型流形”(Caxtall曲面(Cartans址血。治))的名下考虑的(阱〕).U户耽变换(几何学中的)(加内优u丑瑙拓m枷·tion(in卿毗切))的概念被延用到这种网(见「51,!61). 在研究网的可微同胚时,用网z。CM的已知性质来描述在一个已知的微分同胚甲:M~N下(例如,载有网的曲面在弯曲变形下,或共形映射下)得到的网职(艺。)C=N的性质,或者寻找保持网x。的某种性质的可微同胚.例如,EucUd空间的曲面上的网Z:称为菱形网(r玩lmbic戚,即共形qe阮皿eB网),如果它允许在一个共形映射下映为qe氏nUeB网.在旋转曲面上渐近网(留帅pto石c心)是菱形网.网(微分几何学的)[毗(加面价泊由习g曰哪匀):ce“』 在n维微分流形M的区域G中由n族充分光滑的曲线构成的组艺。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条