可分割

First, a non-parametric density estimate method based on kernel function is adopted to estimate the statistic distribution of the SAR images, and then, the SAR images is segmented with Markovian contexture by maximizing a MAP estimator, taking the former estimation as its likelihood term.

该算法首先采用基于核函数的非参数方法估计SAR图像的统计分布，然后将此统计量作为图像分割的似然函数，利用马尔可夫上下文约束进行SAR图像分割。

Based on several experiments,they are researched.The results show that isoperimetric algorithm can be applied in both still image and image video.

实验结果表明：等周算法不仅可用于静止图像的分割，也可应用于图像序列的分割。

To overcome the shortcomings of present divisible e-cash scheme, for the first time, the thesis introduces group signature into divisible e-cash system and view the e-cash withdrawn by users as the group certificate issued by group administrator. As all of ancestor nodes of the payment node arc blindly transformed, the divided parts from one e-cash are no longer linkable.

针对现有可分电子现金方案存在的诸多缺陷，本文首次将适合于大群的群签名思想引人到可分电子现金中，将用户提取电子现金视为群管理员颁发给用户的群证书，通过将支付节点前的祖先节点进行盲化使得同一电子现金分割后的不同分割单元间不再有可链接性。

The optical element comprises: a plurality of rectangular prisms for dividing linear visual field, and is characterized in that the effective work area of each rectangular prism is a linear narrow slit, which can perform visual field division of the light beam from a long linear geographical object and turn the divided visual field into separate light beams for the rational space arrangement of the subsequent optical elements.

光学组件包括：用于分割线型视场的多个直角棱镜，其特征在于：各直角棱镜中的有效工作区域均为一线型窄缝，可将长线型地物目标光束按需要进行视场分割，并将各分割后的视场形成空间分离的光束，以便于后续光学组件的空间合理排布。

This research dissects two regular triangles and assembles them into a large regular triangle. Using GSP and AutoCAD to draw and analyze geometric shapes, four dissection models and nine dissection methods are constructed. The extreme values under all conditions are also discussed, as are the best and generic dissection models. There is a Three-section type "best dissection model" and a semi "generic dissection model."

本文研究两正三角形，经切割后拼成另一大正三角形；期间以GSP及AutoCAD绘制分析几何图形，并建立了4种分割模式，得到了3段式「最佳分割模式」及准「通用分割模式」，提供这方面问题一个可应用於所有条件之完善解决方案。

Video object segmentation can be divided into automatic segmentation and semiautomatic segmentation according to the user-assisted degree.

按照人工参与程度的不同，视频对象分割可分为自动分割和半自动分割。

This method consists of two steps: first, the image is divided into numbers of nonoverlapping blocks and the GMRF parameters are computed for each of these blocks, then a clustering method is used to merge these blocks, a coarse segmentation and texture types of the image are obtained. Second, a deterministic relaxation neural network is constructed, the parameters of the model estimated from the first step are used as input data, through neural network computation, a fine segmentation is obtained.

提出一种基于高斯-马尔可夫随机场和神经网络的无监督纹理分割方法，方法分为两步：第一步先将图像分为不重叠的小块，在小块中计算GMRF参数，并将此参数和该块的均值、方差作为该块的特征向量，然后进行聚类，得到原图像的一个初始分割和图像中所包含的类别数；第二步构造一个决定性松弛的神经网络，将第一步得到的结果作为初始输入，经过神经网络计算，得到一个精确的分割结果。

Based on the situation in Shanghai. this paper applys the theories of in tegration of city and countryside. agriculture in city countryside. agricultur- al modernization arid sustainable agricultural development to deal with the achiveruen t of national industrialization and modernization lie in agrieultura~ modernization ?-? integration of city and countryside -~-? urbanization of rural areas-?-? agriculture in city countryside this is the main clue of the paper. In the view cf history and reality with overall and system. this paper appl~is analysis method of combination of normative and positive. quantattve and qualitive. long-term and short-term and, internal, external arid Shang- hai to discuss relationship among agriculture in city countryside. agricultural modernization and sustainable developrncnt, the history. present and re- straint factors of sustainable development of modern agriculture in city coun- tryside in Shanghai is further analysed. So concepts. goals. index system. selective patterns, developmental strategys and measures of sustainable de- velopment of modern agriculture in city countryside are raisen.

本文立足于上海，依据城乡一体化、都市农业、农业现代化和农业可持续发展理论，围绕着实现国家工业化与现代化的出路在于把农村、农业剩余劳动力转移出来，实现农业现代化——农业剩余劳动力转移必须打破城乡分割，实现城乡一体化——打破城乡分割又必须实现农村城镇化——农村城镇化前提下的农业一定是都市农业的中心线索，全面系统地从历史与现实的角度，运用理论与实践、规范与实证、定性与定量、国内外与上海以及点面相结合的分析方法，探讨了都市农业、农业现代化与可持续发展的关系，分析了上海现代都市农业可持续发展的历史、现状和制约因素，提出了现代都市农业可持续发展的概念和目标、指标体系、选择模式以及发展战略和对策。

Regardless of the details of the partitioning scheme, though, the general idea is that an infrastructure which supports partitioning and repartitioning of data will be far more scalable than one which does not.

不过具体的分割方案如何，总的思想是支持数据分割及重分割的基础设施在可伸缩性上远比不支持的优越。

By adjusting the positions and angles of the two DVD optical pick-up heads, the relative distance of the two laser spots can be equivalent to one quarter of the grating pitch. When the grating moves, the surface profile of the grating can be measure directly, in order to obtain the two quadrature sinusoidal signals. Then by counting the zero crossing of these two quadrature sinusoidal signals and calculating the interpolation value of these two quadrature sinusoidal signals, the moving direction and moving displacement value of the grating can be obtained.

采用两个光学读取头，且两个光学读取头共用同一分光镜与同一聚焦物镜，於搭配光路的设计，可使两个光学读取头之光束打入同一聚焦物镜，藉由调整两个DVD光学读取头的位置与角度，使聚焦物镜聚焦的两相近聚焦光点的距离相等於四分之ㄧ光栅尺间距，当光栅尺移动时，可直接量测光栅尺的表面轮廓变化，以获得一组正交的弦波讯号，继而利用讯号四分割与细分割处理，计算出光栅尺之移动方向与移动量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。