查询词典 features

The key to feature extraction is to select the optimal feature combination from all the features. In this study, the optimal color feature combination,{/G,(R+4G+B)/6, H variance, S variance}, is selected using genetic neural network at first. Then the main texture features including the mean, variance, energy and entropy of the cooccurrence matrix, the secondary texture features including the maximum frequency number, absolute uniform, inertia and importance of the co-occurrence matrix are extracted.

在此基础上，提出适合多阈值和小目标图像分割的免疫遗传图像分割方法，该方法借鉴了生物免疫系统自调节、抗原识别和记忆功能，并结合了遗传算法对图像进行自适应区域的阈值分割，改善了遗传算法优化复杂问题时存在收敛速度慢和易陷于局部最优的不足，克服了传统阈值分割方法对目标大小的限制，是一种新型的有效的图像分割方法。

In this paper the author report deals the type and features of granitic geomorphologic landscape in Chaya Mountain National Geopark. Contrast features of granitic geomorphologic landscape of Mt. Chaya to with those of granitic geomorphologic landscape in China and in the world,Features of granitic geomorphologic landscape Mt. Chaya:①granitic geomorphologic landscape are mainly pictographic stones of granitic geomorphologic landscape ,which have a hundred and tens for pictographic stones of granite in Chaya Mountain.

本文论述嵖岈山国家地质公园花岗岩地貌景观的类型、花岗岩地貌景观特征，对河南遂平嵖岈山花岗岩地貌景观特征与国内外典型花岗岩地貌景观进行了对比分析，嵖岈山花岗岩地貌景观特征：①嵖岈山花岗岩地貌景观主要是花岗岩像形石地貌景观，各种形态的花岗岩像形石有100多个。

First, regarding with fabricating requirements, features were extracted from microstructures and categorized. According to the mechanism of SL, features were divided into those on the scanning plane and those in the building direction. As microstructures include convex or concavo, features were classified into entities and hollows.

首先，针对制作微结构特征的要求，进行微结构特征分类：根据光固化快速成形工艺的特点，将微结构特征系统的归纳为扫描平面内的和堆积方向上的；根据结构特征的凹凸特性，又将不同方向的微结构特征分成实体类和间隙类。

3" And "Pictures Etudes,""Corelli Variations on a Theme." The third part of the "Paganini Rhapsody theme of creative background and style features were analyzed and discussed, In particular, is the melody of the song features, and sound features, the intensity of change, Musical Structure of the four aspects of a more in-depth analysis

第三部分对《帕格尼尼主题狂想曲》的创作背景和风格特点进行了分析和论述，尤其是对该曲的旋律特点、和声特点、力度变化、曲式结构等四个方面作了较为深入的剖析

The 'arrival' of Sisyphus means that he has to employ 'pathetic fallacy' to personify the stone as signifying man's desire and mental burden – the stone lying at the roadside has been changed and elevated to a symbolic level, which incorporates the myth with heroic spirit and becomes the objective equivalent to that of desire, anxiety, and pressure. In essence, the physical features are drowned and from between to express the natural physical features or the ideas, he chooses the latter. This means that there is disjoint between what originally moved him and what he would like to express, but he is acutely aware of it – the 'danger of illustration'. We can see that these series of paintings are finally presented to us, the physical features of the objects still remains and are expressed to some extent. Among them some directly depict the stones in their own part about their pleats and points, desolateness and heaviness; at the meantime, nobody appears in the pictures.

西西弗斯的"到来"，意味着他不得不采用感情误置的方式，将石头进行拟人化的处理，用以指称人的欲望和精神负担——那块路边的石头已经不复它本来的面目，它被提升到一个象征的位置上，与神话和英雄的精神题旨迅速结合在一起，成为人性之中欲望、焦虑、压力等情感的客观对应物，从本质上来说，物自身的特性被淹没了，在表现物的自然特性和表现理念这两者之间，他选择了后者，这意味着，在感动他的最初事实与他要表现的事实之间就有了一种脱节，但他敏感地意识到了这种脱节，这种"图解的危险"，我们可以看到，当这组画最终呈现在我们面前的时候，物的自然特性得到了很大程度的挽留和表现，其中有一些画作直接描绘了岩石本身，它本身的褶皱和棱角、苍凉和沉重，同时，并没有人出现在这样的画面上。

The classification algorithmextracts effective motion-features and shape-features,and the discriminability of theobject features is improved by partitioning the surveillance secens according todifferent traffic road boundaries and scene locations.

通过提取简单有效的运动特征和外形特征，并对交通监控场景中不同交通方向的道路区域和不同的场景位置进行分区，以提高目标特征的可区分性。

First scanning the known handwriting materials then number them ,In pretreatment, we convert the valid part of the image into a standard size, as images carries out duotone and go throw off chirp handling in order to achieve better effect.draw features from the known handwriting materials with the Co-occurence,especially,we divided a copy of handwriting into 25 little pieces with the size of 128*128 ,drawing features from every little piecese with four directions(0 degree, 45 degrees, 90 degrees as well as 135 degrees) and calculate the four major feature values( veins and the statistical quantity of veins contrast and the statistical quantity of veins consistency Shang the statistical quantity of statistical quantity as well as the veins correlation of gray scale ), preservation all the feature value that drawn from all known ma terials to the handwriting characteristic database,then input the unknown handwriting materials, also using the method of the Co-occurence to draw those features, recycling the minimum European Distance law match the unknown writing material feature value with the handwriting characteristic feature database, export the label of the known hand writing materials which is most similar to the unknown material with minimum European Distance, and then we can confirm who is the author of the unknown material.

首先将笔迹材料作为图象扫描输入，并对其进行编号。预处理部分可将笔迹图象的有效部分规范化到一个统一尺寸，接着对其进行二值化和去除噪声的处理，以便于更好的提取图像的特征。在此我们采用了灰度共生矩阵法提取手写笔迹材料的纹理特征，与以往有所不同的是，我们将一份手写材料分割成64块大小为80*80象素的子图象，每个小块都从四个方向（0度、45度、90度以及135度）来更全面的提取特征，并计算出四个最主要的特征值（纹理一致性的统计量、纹理反差的统计量、纹理熵的统计量以及纹理灰度相关性的统计量），将从所有已知材料提取的特征值保存到纹理特征库中，对于待检手写材料，同样采用灰度共生矩阵的方法提取其纹理特征，再利用最小欧氏距离分类法将从待检手写材料中提取的特征值与纹理特征库中的特征值进行比对，与欧氏距离比对值最小的相匹配，输出匹配成功的原材料的标号，进而识别出待检材料书写者的身份。

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。

Firstly, we select features by using CHI distribution. Secondly, we cluster the selected features by using an improved method which based on density. In virtue of the sort distribution information, we reduce the number of features twice and the information lost few. Lastly, based on the sort of texts, we use the distributing of probability to express text with matrix. By using matrix norm, we realized the text categorization.

首先通过分布对特征项进行选择，然后使用一种改进的基于密度聚类方法对选择后的特征项进行聚类，借助类别分布信息，在尽量减少信息缺失的前提下先后两次对文本特征维数进行了压缩；在基于类别概率分布的模式下实现文本的矩阵表示，借助矩阵理论进行文本分类。

There are three important structural features in complex networks: small-world effect, scale- free property and network's navigability. Typical models reflecting these features, respectively, are the Watts-Strogatz's model, the Barabási-Albert's model and the Kleinberg's model. Based on the typical models, a new model of growing and navigable networks is proposed, with the generated networks possessing all these features simultaneously. The results of navigation obtained by using a greedy algorithm on networks of the model are similar to, or even better than, that of the Kleinberg's model.

复杂网络具有3种重要的结构特性：小世界性、Scale-free性和可导航性，反映它们的经典模型是：Watts-Strogatz模型、Barabási-Alhert模型和Kleinberg模型为了全面地反映出这些特性，在经典网络模型的基础上提出了一个新的增长可导航网络模型，这个模型同时具有这3种重要特征，并且在这个网络模型上使用贪婪算法时，它与Kleinberg模型具有相同的导航效果，有时甚至更加优越。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。