Different sections of image have different textures , and different laws features obtained from wavelet transformation form a feature space . the points in the feature space are clustered to form different regions according to k - mean value clustering method , and then the regions are mapped to original image space to get the result of image segmentation 利用图象中不同的部分具有不同的纹理特征，采用小波变换的多尺度特性以获取多尺度、多方向上的纹理能量特征组成特征空间，利用k -均值聚类方法将特征空间的点聚类成团，然后再将它们映射回原图象空间得到图象分割的结果。
Describe fethee space with cuboid and ellipsoid and accordingly enhance the efficiency offeatur space ; 5 . define a kind of distance according to the characteristic of tobacco leaf the distance consists of the differene of two featde spaces , a normalized distance and size proportion of two featur spaces ; 6 根据烟叶的特征定义了一种距离，这种距离考虑了椭球特征空间的方向差别，待测烟叶与已知级别之间的归一化距离以及待测烟叶与已知级别特征区域的大小比例； 6
In summary , on the base of analyzing the environmental factors and characteristic design method of public open space in housing community , this thesis proposes the over all design principles and the design method of characteristic spaces ; introduces the concept of site ; and further more , how to give both consideration to the natural factor and humane factor in the public open space planning in housing community , how to create a living environment of benign development using appropriate architectural codes , to achieve the coordinated development of people and the environment 综上所述，本文在总结社区组团中外部公共空间环境设计特质的基础上，通过分析其环境的影响因素，论述了整体设计原则及特征空间的设计方法，引入了场所的意向；并进而探讨在社区组团外部公共空间环境的规划设计中如何兼顾自然因素与人文因素的双重作用，运用恰当的建筑语言创造出可以良性发展的居住环境，以实现人与环境的协调发展。
Cycle frequency - based blind beamforming shows the performance degradation due to cfe ( cyclic frequency error ) . an improved algorithm is presented in literature 6 , which adopting forgetting factor in estimation cyclic correlation matrix would largely depress the sensitivity of cab to cyclic frequency error . by using this method , the improved algorithms of the c - cab and ecab algorithms are presented in this dissertation 针对基于循环频率的盲波束形成算法对循环频率误差cfe ( cyclicfrequencyerror )很敏感而导致算法性能下降的情况，参照文献[ 6 ]提出的遗忘因子cab算法，提出了c - cab算法以及基于特征空间的盲波束形成算法( ecab )的改进算法。
The training method is very important to hmm based approaches , a new model training method based on genetic algorithm is also discussed at the end . and in chapter 5 , a fuzzy rule based recognition method is proposed . it is heavily rely on a new feature space partition algorithm , in which a modified fuzzy clustering method is used 首先，研究了一种基于模糊聚类的特征空间划分方法以及一种隶属度函数的优化算法；然后讨论了一种新的模糊规则提取算法，用于提取合理的分类规则；为了有效地构造基于模糊规则的分类器，引入了一种网络模型，使用该网络可以有效地实现一个模糊规则系统；在此基础上，构造了具有实用价值的识别系统。
A general review of recent development and application of the technology of remote - sensing in monitoring soil moisture was done with emphasis on introducing the relatively mature and extensively used feature space method and microwave remote - sensing method based on visible light and thermal infrared bands 摘要对于近年来国内外遥感监测土壤水分的理论、方法的发展和应用进行了全面的回顾，重点介绍了目前已经比较成熟和广泛应用的基于可见光与热红外波段的特征空间方法和微波遥感方法。
