Based on high - dimension space geometry , every speech sample is looked as a point in space . then the speech sample point is extracted feature by lpc , mel - scaled cepstrum analysis or auto correlation - angle . their feature is looked as a point too 基于高维空间几何的思想，把每个样本点和其特征值看作高维空间中的一个点，用线性预测分析、 mel倒谱分析和自相关夹角法对样本点提取特征，然后用点在空间的投影来判别语音和非语音，根据判别结果来比较三种特征提取方法的优劣。
Two spatially registered images with different focuses are decomposed into several blocks . then , three features reflecting the clear level of every block , i . e . , spatial frequency , visibility , and edge , are calculated . finally , artificial neural networks , i . e . , multilayer - perceptron , radial - basis function , probabilistic neural network , are used to recognize the clear level of the corresponding blocks to decide which blocks should be used to construct the fusion result 具体实现过程概述如下：首先将两幅（或多幅）配准图象进行分块处理，提取两幅图象中对应块的能反映图象清晰度的三种特征，即空间频率、可见度和边缘，将特征归一化后送入训练好的神经网络进行识别，根据得到的结果依据“谁清晰谁保留”的原则构成融合的图象。
Eight kinds of characteristics of urban road nodes were summarized and analyzed . these characteristics include traffic flows ’ arriving at multi - distributing , arriving traffic volume varying in periods , turn demand of arriving vehicles , velocity varying , stopping and waiting , traffic conflict , time delay and bottleneck . the urban road is overground traffic facility which lies in the city with network form 本文总结分析了城市道路节点的八种特征,这些特征包括交通流到达分布的多重性特征、到达交通量的周期性变化特征、到达车辆的转向需求特征、速度变化特征、停车排队特征、交通冲突特征、时间延误特征和交通瓶颈特征。
After processing original data , characteristics were extracted using four kinds of methods . these characteristics include tabulated data extracting from pattern , statistics , fractal parameter using gridding methods and moment features . bp artificial network is used to classify different kinds of discharge 本文采用四种方法对实验获取的局部放电样本提取了局部放电的特征量，主要提取了局部放电的三维谱图表列数据、统计特征、分形特征和局部放电灰度图象的矩特征这四种特征量。
Thirdly , decrease the difficulty of the character recognition through studying the method of character preprocessing ; at last , some effective methods of feature extraction , such as the one based on image transform with the invariant features which keep stable while the picture move , rotate and zoom in or out , and the other focused on the shape of character and features of direction 三、深入探讨了字符识别的预处理方法，减少字符识别时的运算量和难度。四、讨论了三种特征向量的提取方法，一种是基于平移、旋转和尺度不变性的图像变换法，一种是计算中心矩的方法，再就是强调字符形状和结构的方向特征量提取法，实验中通过最小距离法进行字符的分类识别，匹配时间少，识别率有所提高。
According to the article 22 . 1 of the tri agreement , the term of " geographical indicatio " refers to the indicatio which identify a good as originating in the territory of a member , or a region or locality in that territory , where a given quality , reputation or other characteristic of the good is e entially attributable to its geographical origin 根据《与贸易有关的知识产权协定》第22 . 1条， "地理标识"指的是能表明一货物来源于一成员领土或该领土内一地区或地方，该货物的某种特征、名声或其它特征本质上归因于其地理来源。
The paper has made a comprehensive study to marine carbonate oolitic reservoir in triassic of feixianguan group of intra - platform taphrogenic trough basin in north - east past of sichuan basin . according to the principle of high resolution stratigraphic sequence , combined with original results gained form the area , the author have built up the base level cycles and fades model of different stages based on the surface identification mark of base level cycle using the information of geology , seismic , logging , core and outcrops 1 、依据层序地层学高分辨率基准面旋回原理与识别技术，建立了裂陷槽向上变浅直至露出水面过程中形成的基准面旋回变化的7种特征性识别标志，包括泥岩表面干裂、淡水选择性溶蚀、白云化现象、白云岩、石膏、伽玛曲线高值、向上变厚、变粗序列、向上变细、变泥、变红序列、向上值变低序列等。
According to the article 22 . 1 of the trips agreement , the term of " geographical indications " refers to the indications which identify a good as originating in the territory of a member , or a region or locality in that territory , where a given quality , reputation or other characteristic of the good is essentially attributable to its geographical origin 根据《与贸易有关的知识产权协定》第22 . 1条， "地理标识"指的是能表明一货物来源于一成员领土或该领土内一地区或地方，该货物的某种特征、名声或其它特征本质上归因于其地理来源。
First classifier chooses two classes whose matching distance between it and paper currency is bigger than others from all class . then in the second stage , we extract some new feature and improve the classifier to generate the last result . in the stage of defect detection for paper currency , we advances a homogeneity based algorithm for the detection of scratch and cracks appearing on paper currency , in which the homogeneity feature of the sensed paper currency image is first constructed to locate the pixels that probably been polluted , the image registration algorithm is subsequently used to overlay the sensed and reference paper currency image 在特征提取中,我们对基于方向块的特征提取方法进行了分析,在此基础上针对美元特点,对图像方向块的划分方式做了研究,并提出了基于几何距离的特征提取方法;在分类器设计中,我们采用了lvq网络对纸币进行学习与分类,并提出了一种具有两层结构的分类算法,第一层首先对输入的特征向量进行粗分类,选定与特征向量匹配距离最大的两类币种,进入第二层分类器;在第二层分类器中,我们通过研究进入该模块两类币种特征块的相关性,重新设计了特征向量,同时对分类器进行改进,最终实现对纸币的分类。
Rather than the success or failure of a single product design . product image design based on product identity should be identifiable in characteristic and consistent in style ? hich is represented by doing design business wholly and systematically on products in series and products in different periods , not only present it repeatedly , but also continue it when upgrading 产品形象应表现为特色鲜明和风格统一，此统一性不仅表现在系列产品风格的呼应是将围绕产品所进行的各种设计事务作为一个整体进行系统设计，而且还应将不同阶段的产品风格也系统地进行考虑，不仅包括某种特征上的不断重复，而且要在变化升级中求延续。
