多值映射

A set of complex Morlet wavelet are applied on projection slice of each direction to decompose each projection into several frequency channels,the average and variance extracted are computed in each frequency channel,and then linear regression model is employed to computer realationship feature between frequency channels.1-D DFT is applied to features and the amplitudes of Fourier coefficient are selected as features,then the extracted features are rotation invariant.

该算法是将一定大小的图像进行二维傅里叶变换；其次在变换后的图像中央选择一个圆盘区域，并在方向［0°，180°］内进行等间隔角度频率抽样，实现方向分解，使用一组复Morlet小波对每个方向上的映射切片进行小波变换，从而实现多通道频率分解；在各个频率通道中计算均值和方差作为特征，并利用线性回归模型计算频率通道之间的关系特征；将特征沿方向进行一维傅里叶变换并取其幅值，从而得到旋转不变性特征。

There is mutual contradiction between direction estimation of user's signal and power allocation among all users in the beamforming algorithm. A twice game beamforming algorithm based on game theory is proposed to deal with it. Beamforming game algorithm mathematics model is constructed. During the first game, direction of signal and power allocation are mapped the game theory as "player", which are modeled as the problem of maximin function and obtain direction estimation first. Then during the second game, power allocations of different users are described as a multi-user game. Power updated algorithm is designed. The existence and uniqueness of the Nash equilibrium in the twice game beamforming algorithm based on game theory are proved by mathematics derivation.

摘要针对波束成形算法中，用户的信号方向估计值和用户之间的功率分配存在着相互矛盾，本文提出了一种基于博弈论的二次博弈波束成形算法，构建了波束成形博弈算法数学模型，首先在第一次博弈的时候，将波束成形算法中的信号方向和功率分配映射为博弈论数学模型中的"局中人"，将其建模为函数的极大极小值求解问题，先求解出信号方向；然后在第二次博弈的时候，将不同用户的功率分配过程描述为一个多用户的博弈过程，设计了功率分配更新算法，通过数学推导论证了纳什平衡点的存在性和唯一性。

The algorithm automatically adjusts every image's inserting point by mapping multi-images onto a suitable sphere, to make accumulative average gray values of difference images on overlapped position be minimal, and then conversely maps the spherical image to plan image to finally get the stitched images.

该算法通过把多幅图像映射到一个合适的球面上，自动调整每幅图像的插入点，使得重合位置的差值图像灰度累积平均值最小，然后球面的图像反映射成平面形式，最终得到拼合图像。

For the multi solution and multi goal engineering problem,gray system theory can be used to establish a Europian space,oriented at each goal.

对于多方案、多状态、多目标的工程问题，可以应用灰色系统理论建立一个以各目标为坐标轴的欧氏空间，并在此空间内定义一个灰靶，将由状态和方案组成的局势，在目标上的观测值向效果空间进行映射，以求得最优方案。

The number of desired signals is detected by using singular value decomposition. And the array input is transformed into the signal subspace. Orthogonality is derived for the weight vectors in multiple beamforming on this subspace. According to which, an orthogonal constant modulus algorithm is proposed by introducing the orthonormalization procedure into the static least square constant modulus algorithm.

利用奇异值分解确定了用户信号的个数，并把天线阵接收的数据矩阵映射到信号子空间上，进而在该空间中讨论波束形成问题并导出了多用户波束形成的必要条件，依据此条件将正交化过程引入最小二乘恒模算法并提出了正交化恒模算法。

After the characteristics of elevation data in planning base map are analyzed,the article chooses polyface meshes to mimic 3D topograph model in which the interpolation algorithm ,weighs is used to adjacent distance, is adopted .

在分析规划底图中高程数据特点的基础上，选用AutoCAD的多面网格对象，采用近点按距离加权算法来进行插值运算，建立三维地形模型；通过纹理映射法在AutoCAD的渲染程序中加以实现，生成逼真的三维实景

A new case-matching algorithm, namely ANNI, is proposed in this paper. It uses artificial neural network to setup the mapping relationship, which is generally decided by human expert before and full of unreasonability in weight setting. The ANNI algorithm is proven to be very suitable for mapping between complex-related factor sets and can be applied in case-matching calculation.

首次提出基于BP神经网络的事例匹配度计算—ANNI方法，很好地解决了现有的事例匹配算法需要人为定义权值或匹配规则的缺陷，利用神经网络的自适应性可以有效地确定复杂相关因素集之间的相互映射关系权值矩阵，从而能够有效地应用于基于事例的推理方法中多因素的注塑成型特征集匹配度计算。

In some embodiments, respective pluralities of texel reference values and texel mapping values that map thereto are stored for respective ones of a plurality of overlapping blocks of texels.

在一些实施例中，为多个交叠纹理元素块中相应的块存储相应的多个纹理元素参考值和映射到该纹理元素参考值的纹理元素值。

The invention performs pseudo bit error rate statistic by utilizing the message of multi sampling points in each modulation symbol of discretization system, and again performs one-to-one mapping by utilizing corresponding relation between the pseudo bit error rate and the signal-to-noise ratio, thereby obtaining signal-to-noise ratio estimation value.

本发明利用了离散系统每个调制符号中多个采样点的信息进行伪误码率统计，再利用伪误码率与信噪比之间的对应关系进行一一映射，从而得到信噪比估计值。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐