查询词典 unique feature

In this method, wavelet and fractal are used to pick up the structure feature and statistical feature, and these features are combined and used for recognizer as input data.

对手写汉字分别采用小波和分形的方法提取其结构特征和统计特征，并将提取的结构特征和统计特征组合后作为识别器的输入进行识别。

So a novel content-based face image retrieval scheme is created based on this content feature-principle independent content feature. In this scheme, PICF based on higher order statistics is firstly extracted in the reduced space for effective representation of face images.

该方案首先在降维空间提取出基于高阶统计特性的主独立内容特征，应用提取的主独立内容特征进行有效的人脸图像描述。

Gabor-ring is often used in texture feature extraction, but it is based on the assumption that texture is narrowband signal and can not applied to most actual textured images that have more than one center frequency in power spectrum. To overcome the limitation of existing method, an improved method is proposed. According to this method, Gabor filters are constructed in accordance with the spectrum feature vector of texture, and a relaxation parameter is used to determine the effect of difference filters so as to integrate the frequencies and phases into the process of extraction.

Gabor环（即在频率域成环形分布的Gabor滤波器组）常被用于提取图像纹理特征，但它是以"纹理是窄带信号"为基础的，实际的纹理图像并不能很好地满足"窄带信号"的假设，用一个中心频率来描述一种纹理对能量集中在多个频率点的纹理图像往往不能取得理想的效果，而根据频谱特征值向量构造Gabor环的改进方法，通过松弛因子的加入改变不同滤波器的作用强度，综合考虑了多频率多相位对纹理特征提取的影响。

On the client machine with 90 ° rotation feature and was RIP page can be left or rotate right 90 °, this feature in the free-made version mode, to be able to save film.

在客户机不不安息上可以诳骗90°回旋扭转功用，被RIP好的页面可以根据必要举行不左或不左90°回旋扭转，这种功用在纪律不拆不小版模式下，不妨耗费胶片。

The model can reflect the multi-sets feature of the rock masses in practice, consider the influence of the joint orientation and strength to the rock masses deformation feature, and simulate the simultaneous sliding, tension and close behaviors of the multi-sets jointed rock masses extending the joint surface, and reflect the plastic deformation induced the rotation of the principle stress axes. The result can be extended to fractured rock masses with arbitrary set joints.

该模型能反映实际工程中岩体的成组节理特性，考虑节理产状和强度对岩体变形特性的影响，可用来模拟岩体中多组节理同时存在滑动、张开、闭合的行为，并能反应由于应力主轴旋转所产生的塑性变形的影响。

In a word the, modern social requirement of legal system is the heavy affection of feature with elasticity the ethics spirit of heart operation to is the heavy reason of feature with rigidity the spiritual transformation of rule by law of behavior operation.

总之，现代法制社会要求以弹性为特征的重感情的内心操作的伦理精神向以刚性为特征的重理性的行为操作的法治精神的转化。

The surface of conventional engineering part is composed of simple analytical surfaces and four-boundary ruled surface primarily. Therefore a point cloud segmentation method based on those feature surfaces is proposed. Several algorithms to identify the simple analytical surface feature are investigated and discussed. The theory of fitting scattered point to B－Spline and Bézier surfaces is introduced and a fitting method based on four boundary and point set is also discussed. Moreover, anew method to recover the fix-radius rolling ball blend is proposed and discussed in detail.

常规工程零件的外表面中包含了大量的特征曲面，如简单解析曲面和四边直纹面，因此，本文提出基于特征曲面的的点云分割方法，研究几种识别简单解析曲面的算法；研究由点云拟合B－Spline和Bézier曲线的理论基础，总结曲面拟合的几种方法，提出一种反求定半径滚球圆角的方法。

First we construct a covariance matrix from sample images, then compute the eigenvalues and corresponding eigenvectors of the covariance matrix, construct a feature matrix with the eigenvectors. Then every images in database can be projected into the feature matrix and gain a projection vector, so does the input image. Then we can judge the resemblance between input image with each image in database by computing the distance between their projection vectors.

我们首先根据采集的样本图像构造一个协方差矩阵，然后求取该矩阵的特征值，以这些矩阵特征值对应的特征向量构造出一个特征空间，然后将输入图像向该特征空间映射，将获取的映射系数与样本库中图像的映射系数进行距离计算，根据计算出的距离判定输入图像与样本图像间的匹配程度。

Research indicates that each kind of shape feature such as solidity, eccentricity and area has different values and can be used as the separating parameters by comparing each feature respectively for the four ingredients, which are the seed, the fruit coat closing, the peduncle and the seedcase.

通过分别比较椒籽、闭眼、果穗梗和果皮的凹性率、椭圆度、面积值，发现四种成分的同一形态特征有一定差异，可作分离参数。

This method use the silhouette of object in image as feature, after approaching with polylateral, a serious control point can be got, the feature vector of object's contour can be got by calculating the parameter of AR model, which use the sequence of angles got from control points.

该方法以目标二维方面图轮廓为特征，经多边形逼近获得边界控制点，计算出边界控制点对应角序列的AR系数作为相应方面图的特征向量，建立三维目标的在各种姿态下的姿态特征库。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。