统计地

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

In this thesis, a series of the problems of stochastic simulation for geomagnetic field was investigated.

完整的随机模拟包含统计模型化，模拟抽样和模拟推断三个部分，本文比较系统地研究了地磁场随机模拟的若干问题。

On the basis of the minimum scale soil nutrient distribution generated randomly based on the given values of mean, standard deviation and related distance, or obtained by geostatistics analysis based on soil sampling data, the amount of fertilization, yield and fertilization use efficiency at different scales were calculated by related fertilizer models and yield models supported by geographical information system and computer simulation, then the simulation result was intuitively visualized by curve graphics and RGB primitive colors synthesized image and thematic maps.

系统通过随机数生成法或地统计分析法生成最小尺度条件下的土壤养分空间分布数据，以此为基础，采用GIS、计算机模拟技术模拟不同尺度的养分空间分布，并以肥料效应模型和产量模型计算不同尺度条件下的施肥量、产量和肥料利用效率，最后通过曲线图、三原色合成影像和GIS专题图实现形象直观地表达模拟结果。

It will automatically create an index page that lists all the files that are located in the directory.

该软件广泛的可以通过一个网络浏览器本地地和远程地浏览的统计信息。

In order to improve the quality, it is important that the factors, which effect the quality, would be found, and that time change them to the analyzable factors.The quality analysis model was built in this text basing the service product and theory of service management. After that I tried to analyze the level of the insurance service through the model, and tried to analyze the cause of our lowness of the service and the service management.

本人通过在某财产保险公司的工作实践，根据业界专家的经验，统计总结出影响保险服务质量的一些因素，并在此基础上建立了保险服务质量分析模型，粗略地将各个影响因素及财产保险综合服务质量进行了量化，并以此来分析保险公司的服务水平，与此同时又深层次地探讨了保险服务水平不高的原因。

The structure and heterogeneity of urban green space in the five districts in Fuzhou , which included the main tree species with diameter at breast height distribution, height class, health class, importance value, relation and the green space patches with areas distribution, perimeter distribution, porosity, connectivity, marginal density, dominance, the characteristics of geo-statistics and so on, were studied in quantification by the use of the principle of landscape ecology combining with the method of studying porosity and connectivity and geo-statistics.

本研究应用景观生态学的原理结合孔性、连通性研究方法和地统计方法对福州市五个行政区的绿地结构和异质性进行了量化研究，包括：城市绿地主要树种、树种的胸径分布、树高等级、健康等级、重要值和多样性、主要树种间的关联度以及绿地斑块大小分布、周长分布、斑块的孔性、连通性、边缘密度、优势度、斑块的地统计学特性等。

The system of Chinese Prepositional Phrase Identification in this thesis adopts a statistical model based Maximum Entropy.

本文实现介词短语识别的系统是基于最大熵的统计模型，最大熵模型具有简洁、通用和可移植等特点，能够灵活地选取特征，同时可以把计算模型和语言模型作为独立地模块处理，而不必关心语言内部的细节。

He acknowledges this, ruefully, but also points out how easy it now is for anyone to get online access to good statistics and find out for themselves what is happening.

他遗憾地承认了这一点，但又指出，现在任何人都可以很容易地在网上找到好的统计数据，自己搞清楚事情的真相。

Based on the test of 23-year and 10-year old slash pine,this papersystematically studied the effect of different thinning intensity and different densityof plantation on the wood qualities and properties.Many statistical means such asanalysis of variance and cluster analysis were used to analyze the difference of thewood qualities and properties among the different silvicultural measures.

本文分别以23年生、10年生的湿地松为实验材料，全面地研究了不同间伐强度、不同种植树密度对人工林湿地松材质材性的影响规律，并利用方差分析、聚类分析等统计手段，定量地分析了不同栽培措施之间材质、材性的差异。

On the other hand , how to provide vapid and high quality information service better using the system for economy construction is also mentioned in the thesis.

本文简要地介绍了水文特征值计算机统计软件的开发目标、系统设计原则、方法、主要功能特点、应用前景和如何更好地为经济建设提供优质快捷的水文信息服务。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。