点变换

Point operations because of its role in the nature of computing is sometimes referred to as contrast enhancement, contrast stretching, or gray-scale transformation.

点运算因其作用性质有时也被称为对比度增强、对比度拉伸或灰度变换。

The paper also simulate the vibration response of frame when suspension point were changed, which indicates, through comprehensive consideration with the mode of frame, that it can get better oscillation damping affection to position the suspension points to the node of mode shape.

本文还在模态集成模型上模拟分析了发动机悬置点的变化时车架振动响应，表明通过与车架的模态综合考虑，把发动机的位置变换到车架模态振型的节点位置也有较好的减振效果。

Unfortunately, the variables of the tensor multiplicative wavelet function are separable, and wavelets analysis is often fail when it is used to represent the higher sigularities.

小波变换是目前已知的对信号\函数的点奇性进行描述的最好工具，但对于高维奇性，可分离变量的张量积小波分析常常会失效。

The algorithm tracks the changing rate of each coordinate transformation parameter through Kalman filter to facilitate better prediction of the initial searching point. More importantly, the powers of the noise models of the Kalman filter are effectively estimated online rather than making artificial assumptions on their values. The algorithm can hence adapt to various target motions and searching precisions in a real-time manner without any manual intervention.

该算法通过对坐标变换参数的变化率进行Kalman滤波来更好地预测初始搜索点；更重要的是，该算法有效地在线估计Kalman滤波器中的模型噪声功率，而非先验地对它们的取值做出假设，因而能够在没有任何人工干预的情况下动态地根据不同的目标运动状况和搜索精度进行实时调整。

The information along3 D maximum shear stress tracing line is completely ascertained with the method of parameter transformation, then the changing rule of the normal stress along3 D maximum shear stress tracing line is discussed based on cobevel method.

利用坐标变换法证明了一般三维塑性流动问题任意点应力状态，可以完全由三维最大剪应力迹线上的信息确定，进而利用共斜面法给出了三维塑性流动问题沿最大剪应力迹线正应力的变化规律。

The choice of the transformer includes: Main transformer use the main technique in number, capacity, model number...etc. in set data of the transformer to really settle; The electricity lord connected the line to introduce primarily the electricity lord connects the linear importance, design according to, the basic request, every kind of merit and shortcoming and lords that connect the line form connects the linear choosing more, the lord that combine to establish the in keeping with my plant the request connects the line; The short-circuit galvanometer is regarded as the most important link, this thesis introduced the calculating purpose in short-circuit electric current, assumption term, general provision, the calculation, network transformation of a parameter detailed, and each calculation etc. knowledge that short circuit order; The choice of the high pressure electricity equipments includes the mother line, high pressure breaks the road machine and insulate the switch, electric current to feels with each other the machine, electric voltage feels with each other the choice principle of the machine, high pressure switch cabinet with request, and proceed to these equipments the school check with the related introduction in product.

变压器的选择包括：主变压器的台数、容量、型号等主要技术数据的确定；电气主接线主要介绍了电气主接线的重要性、设计依据、基本要求、各种接线形式的优缺点以及主接线的比较选择，并制定了适合要求的主接线；短路电流计算是最重要的环节，本论文详细的介绍了短路电流计算的目的、假定条件、一般规定、元件参数的计算、网络变换、以及各短路点的计算等知识；高压电气设备的选择包括母线、高压断路器、隔离开关、电流互感器、电压互感器的选择原则和要求，并对这些设备进行校验和产品相关介绍。

To explain these phenomena,we exercisethe Fourier transformation of lattice to expand the state of the system into a linearsuperposition of p coherent states at 〓.

为了解释这些现象，我们借助格点傅里叶变换，把系统的态在〓处展开为p个相干态的线性组合。

In this paper, we propose a new approach to recognize occluded objects. The information of the magnitude of the local extreme of the open angles in the contour of a model at a scale, the information of the distance and relative location between the two adjacent dominant points are suitably integrated as a set of features for describing a model, the features are invariant under rotation, uniform scaling, and translation of the curve.

该文提出了一种新的识别有遮挡目标的方法，即将目标模型和含有目标的遮挡图象的轮廓在某一尺度上张角的极值、极值点之间距离、相对位置等信息集成在一起，作为描述目标模型的一组特征，且这组特征在平移、旋转和均匀尺度变换下保持不变。

The basic idea is calculating wavelet coefficients for each time series based on Haar wavelet transform. The first k coefficients are used to form a MBR. Thus, the point filtering method can be used. In addition, lower bounding and upper bounding features of each time series are calculated in advance, which are stored into index structure. Finally, triangle inequality pruning method is adopted by calculating the distance between time series beforehand.

基本的思想为首先运用Haar小波变换计算每个时序的小波系数，利用前面的k个小波系数形成一个最小边界矩阵，以利用点过滤方法；然后将预先计算每个时序的低边界特征和上边界特征存放到索引当中；最后采用三角不等式来修剪不相似的序列并确保没有漏报。

In this strategy, the same image is code d by two different rules, then the pixels' position of image is changed by a transform between two different pixel address code spaces.

对于同一幅图像，采用两种不同的编码规则进行像素地址编码，然后借助这两个不同的点地址编码方式实现图像信息的置乱，该方法只需一次变换就能达到很好的置乱效果，具有一定的实践应用价值。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。