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The validities of amplitude features and their extraction method suitable in high-frequency SAR image are analyzed when they are used in UWB SAR image. An extraction approach of amplitude feature based on target contour is presented, and the corresponding effective amplitude features are proposed. The old dihedral angle model is analyzed and improved. The approach of azimuthal feature extraction is proposed based on the conclusion of the improved dihedral angle model. The problems, which appear when the common change detection methods are used to extract the change feature based on ROI, are analyzed. And a robust and feasible extraction approach is presented.

分析了适于高频SAR图像的幅度特征及其提取方法用于UWB SAR图像时的有效性,提出了基于目标轮廓的幅度特征提取方法及相应的适用幅度特征;分析了已有二面角模型在建模过程中存在的问题并进行了改进建模,基于改进二面角模型结论提出了方位向特征提取方法;分析了常用变化检测方法用于提取ROI变化特征时存在的问题,提出了一种稳健可行的变化特征提取方法。

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。

Firstly, based on the observation and description of a large number of drilling cores in macroscopic and microcosmic aspects, facies marks are summarised, which supplied from the characteristics of lithology, distribution of grain size, sedimentary structvure, ichnology and logging facies.

首先,在对大量岩心宏观和微观特征描述的基础上,从岩石学特征、粒度分布特征、沉积构造特征、遗迹化石特征以及测井相特征等五方面,总结出研究区的各类沉积相的相标志,为沉积相的识别和划分提供了有力的依据。

It can result in that one feature's predictive power is weakened by others and the lost of efficiency.

目前在文本分类领域较常用到的特征选择算法中,仅仅考虑了特征与类别之间的关联性,而对特征特征之间的关联性没有予以足够的重视,这导致了特征之间预测能力的相互削弱,无法选出最有效的特征

It is also the base of structure optimization.According to main object characteristics of structural dynamics design,structuraleigenveetor sensitivity computation is,first,be studied.A Neumann series expansionmethod is proposed in accordance with the modal method and is developed to agreewith the structure with rigid body modes.A rapid Neumann series expansion methodfor eigenvector sensitivity is formed;it may greatly improve the efficiency ofcomputing eigenvector derivation.

本文根据结构动力学设计的主要目标特性,首先进行了结构特征向量灵敏度分析研究:形成了计算特征向量灵敏度的Neumann级数展开法,并将其扩展到适用于具有刚体模态的结构特征向量灵敏度分析;研究出计算特征向量灵敏度的快速Neumann级数展开法,该方法大大提高了特征向量灵敏度分析的效率;建立了无需K-1运算的结构特征向量灵敏度分析的共轭梯度迭代法。

According to gathering plentiful relative datum of of Xuer section of Yazihe structure and seismic、 well logging、 surveys、 core ect during the exploitation and exploration,the research starts with analise of slice data、 core observation and core specimens,then combines with coordination、 analyse、 concluding and the former research result.The article recognizes the tectonic feature of Xuer section of Yazihe structure and it"s tectonic evolution,analyzes the distributing feature of oik、 gas、 water、 their dominated factor、 the pressure feature of gas reservoir and especially the conservative condition of Xuer gas reservoir.At the same time,the article acquaintances the depositional feature and sedimentary environment and discusses the main genesis typeof reservoir sandstone.By analyzing the physical feature and physical relation of reservoir rock, the article first classifies and evaluates the reservoir rock simply ,then concludes it"s feature of reservoir and permeability. According to detailed core observation and fracture explanation in well logging ,the article uses single well fracture indentifying and evaluation to confirm the section where the fracture growths,putting emphases on the method to get parameter of fracture,such as fracture width and fracture porosity.Finally,combining with the principal curvature for tectonics deformation the article predicts the plane fracture of reservoir and weave the general evaluation map of crack fracture growth.

本文主要是通过大量、全面地收集鸭子河构造须二储层及气藏在油气勘探和开发过程中取得的地震、录井、测试、岩心及开采等方面的相关资料,从薄片资料、现场岩心观察和岩心样品分析资料入手,通过室内整理、分析、归纳,并结合前人的研究成果,认识鸭子河构造须二段的构造特征并分析构造的演化,浅析其油、气、水的分布特征及控制因素,气藏压力特征、重点分析须二气藏的保存条件;了解储层的沉积特征和沉积环境,从多方面讨论储层砂体的主要成因类型;分析储层的物性特征及物性间关系,并对储集岩进行简单的分类评价,归纳其储渗特征;通过详细岩心观察和测井裂缝解释,进行单井裂缝识别与评价,来确定裂缝发育层段,重点放在裂缝参数的求取,如裂缝宽度、裂缝孔隙度等,并结合构造曲率法进行储层平面裂缝的预测,编制裂缝发育综合评价图。

Taking Changling County, Zhenlai County and Da'an City of Jilin Province as researchareas, based on remote sensing data, graphics operation and spatial analysis are carried out indifferent points of views, including temporal, spatial, scale and landscapeetc; all aspects analysis of this dissertation are abstractively expressed by digital graphics andseries of curves which are not stick to one pattern to discussing multi-dimension andcomplicated attributes of the salinized process. Linking up temporal-spatial characteristicswith landscape indices while combining mathematics model and Geo-informatic TUPUmodel, this dissertation puts forward the fundamental frame: temporal-spatial evolvementpattern, spatial extension process analysis and landscape characteristics analysis of salinizedland. Temporal-spatial evolvement pattern analysis extracts the essential quantity features andtransformation modes of salinized land, and also analyzes patches spatial geometricalparameters scale feature; spatial extending process analysis discusses the change rate andecological modes; landscape feature analysis utilizes landscape graphics indices to describesalinized land microcosmic graphics features and changes.

信息图谱模型为土地盐碱化研究提供了一种谱系化、定量化与定位化相结合的研究方法,本文选取吉林省西部盐碱化典型区域长岭县、镇赉县、大安市作为研究区,以遥感影像为基础数据,在GIS技术支持下,从时空变化、尺度效应、景观特征等多个角度对盐碱化土地进行图形运算、空间分析,通过不拘一格的数字化图形、曲线系列抽象表达出不同维度上的特征与规律,探讨土地盐碱化过程的多维性与复杂性,将盐碱化土地时空特征与景观特征衔接、数学模型与图谱模型结合,以盐碱化土地时空演变基本模式、空间扩展过程和景观特征分析为框架构建盐碱化土地信息图谱模型研究体系,发挥图谱模型数据挖掘、知识发现的特长,将宏观动态变化与微观特征相联系,进一步挖掘土地盐碱化过程与人类活动影响的关系,为探索研究区盐碱化土地成因、过程,预测其未来发展变化趋势及其对环境影响提供相关科学依据。

The box-counting dimension,multi-fractal dimensions and discharge centrobaric characteristics of the PD pictures are also extracted, and the characteristic variables are classified by RBF network.

由于图谱中含有局部放电丰富的信息,因此局放特征通常从二维和三维图谱φ-q-n(放电工频相位φ、放电幅值q和放电次数n)中提取,提取的特征有:统计特征[2]、分形特征[3-5]、小波特征[6-7]、矩特征[8]等。

At first, the article elaborates the appearance of the property rights of corporation artificial person and its set-up in China, and reviews the devious development of corporation in China. Then it states the specific characters of the Chinese current corporation system, including homological character and practical character, different characters of the property rights of corporation artificial person in Limited Liability Company, Stock Company and State-owned Sole Proprietorship Company. After that, it discusses the jurally character of the property rights of corporation artificial person and the final adscription of the property of corporation artificial person.

本文首先阐释了公司法人财产权的产生及其在我国的确立,回顾了公司制度在我国一波三折的发展历程;然后阐述了我国现阶段公司法人财产权的具体特征,包括法理意义特征、实践意义特征、有限责任公司法人财产权特征、股份有限公司财产权特征和国有独资公司法人财产权特征;继而论述了公司法人财产权的法律性质和公司法人财产的最终归宿;最后重点探讨了公司法人财产权的民法保护。

Leaders\' characteristics include knowledge, capability, personality and behavior. We choose the personality and behavior of leaders to research, because personality is a basic factor of leaders and bahvior is a direct one to team members. At the same time, we synthetize different concepts of team, and finally define team by the cooperation, the influence to each other, the same goals, the duties taken on by all, and the larger performance.

领导者特征包括知识技能、能力特征、人格特征与行为特征等,本文选取处于素质结构底层的人格、对团队产生直接影响的行为两大特征作为领导者特征的研究内容;同时,在综述国内外学者关于团队的定义后,从成员互补性、相互影响性、目标共同性、责任共担性以及绩效放大性等方面界定了团队概念。

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推荐网络例句

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明:这可不是一个一般的对话框,它是用图片作为背景的对话框,非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份,帮助我,我的面具将成为我的目的。

Now, there is no effective methods for this disease, chemotheraphty and hemapoietic stem cell transplantion are often used, but complete remisson rate is not very high.

目前还没有良好的治疗方法,常采用化疗和造血干细胞移植的治疗手段,但完全缓解率并不高,而且在治疗过程中容易诱发肿瘤溶解综合征。