边缘

The multiple edge features are defined according to the character of the gray intensity distribution at the image edge.

该方法根据边缘点附近灰度分布特点构造了多个反映边缘特性的特征分量，并利用输入图像提取该组特征分量，组成一个反映图像边缘特征的数据集。

Oilcan is a kind of typical rigid target with big backscattering coefficient, which takes on point figure if the resolution of SAR image is not very high; these point targets to be recognized gather together, and form a target region with some distribution area; the center of the region appears as a beeline, and the speckle noise appears scattered, therefore, considering the different grey distributions between point target and speckle noise region and the space geometry distribution, these point targets can be recognized by this algorithm.

由于在高分辨率情况下，合成孔径雷达图像中油罐个体的散射分别体现为由若干高亮度点围成的椭圆，待识别油罐目标的模糊边缘呈不连续的椭圆状，因此从二值化后的SAR图像中识别出拟目标的不连续边缘，判断其是否满足目标边缘特性来识别出最终结果，采用该方法解决了这类高分辨率下椭圆状目标的识别问题。本文运用了基于Gauss核函数支持向量机的SAR图像典型目标识别方法。

Based on the gap statistic of order Wilcoxon rank sum, a multi-scale images edge detection model is established.

通过图像的边缘检测实例对模型进行了验证，比较了不同尺度下边缘检测的差别，验证并分析了噪声对边缘影响依尺度的关系。

On the whole, the orthopteran communitiesdiversity in edge zone are higher than those in the interior of adjacent communities at the similar edges.

分析各边缘地带蝗虫群落多样性发现，所有边缘类型的边缘处直翅目昆虫多样性明显高于其相邻的生态系统。

The urban fringe belt is defined by its outer and inner boundary, which separate the inner urban core, urban fringe and rural area.

城市边缘区被定义为城市内边界和外边界之间的环状区域，内边界分离城市核心区与城市边缘区，外边界分离城市边缘区与农村腹地。

According to the feature, the blurred edge of the target in the superposition region can be detected, and the target edge parallel to the motion blur direction is detected by a Canny operator.

基于该灰度变化特征检测运动模糊方向上的目标边缘，并利用Canny算子检测平行于模糊方向的边缘，两部分边缘进行求或运算并进行形态学处理，从而分割得到完整的目标模糊图像。

In chapter 4, the case of risk asset allocation with allowed sell and restricted short sell is discussed, especially in case of restricted short sell, the efficient frontier piecewise partition is determined by using duality theory in parametric quadratic programming. And the concept of tripartition is introduced, economic meaning stated and algorithm to determine efficient frontier proposed.

特别对限制卖空的证券组合，应用参数二次规划对偶性理论解决了有效边缘曲线分片划分的问题，并引入了三元分割的概念，解释其经济意义，同时给出确定有效边缘的算法；对于协方差矩阵是奇异的情况，利用矩阵分块技术，得到不同情形下有效边缘的解析表达式，并用直观的几何图形描述，克服了M-V模型在实证分析中遇到的困难。

Results:The mammographic features of 13 cases included:small tumours with smooth and sharp border in 4 cases,mean size 3.75cm×2.9cm;large tumours with phyllode border in 4 cases,mean size 8.25cm×7.12cm;Small tumours with rough border in 2 cases,mean size 2.25×2.25cm;tumour not found but with homoge...

结果 ：13例X线征象：①肿物较小、边缘光滑锐利 4例，大小约 3 。75cm× 2 。9cm ；②肿物较大、边缘呈分叶状 4例，大小约 8.2 5cm× 7.12cm ；③肿物较小、边缘粗糙 2例，大小约 2 。2 5cm× 2 。2 5cm ；④腺体密度均匀未见肿物 1例；⑤腺体结构不良 2例。

IHT is make used of to proceed line edge fitting in the actual engineering. The auto-adaptable image edge detection method is applied to detect image edge in real project, and the region of image edge detected is limited within 1 pixel. IHT is also applied to fit line edge. Comparing with MHT, the result of IHT indicates its speed quick, the accuracy high, and anti-jamming-quality strong, exactly said that the accuracy of IHT fitted line is less than 0.1 pixel for polar distance and less than 0.01deg for polar angle.

自适应边缘检测方法被应用于检测实际工程的图像边缘，检测到的边缘区域在亚像素之内；修正的Hough 变换算法也被运用于相应工程的直线拟合，与传统的Hough算法相比，结果表明其速度更快、精度更高，抗干扰能力更强，其拟合直线的极径精度可达到0.1个像素，极角精度可达0.01度。

The paper further discusses the reasons of "Marginal Man" coming into being as the following: firstly, the individual factor of Stendhal\'s growth and feeling; secondly, the background of the unrest social environment; lastly, the changed culture caused by society.

文章围绕司汤达小说中边缘人所具有的形象魅力和精神价值，借助对"边缘人"的命运和反抗精神的关注，(来源：d095A09BC论文网www.abclunwen.com)思考边缘人的社会和审美意义。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。