基于 Gabor 小波的人脸边缘检测算法研究

院本文提出了一种基于 Gabor 奇部滤波器的边缘检测方法,在不同的尺度下分别采用非极大值抑制,然后利用 Canny 算子在高低阈值图像中查找边缘点的方法对图像进行边缘检测,无需人为的设定任何参数.实验结果表明这种算法不但克服了 Canny 算法中人为设定阈值的缺陷,而且有效地去除了图像中的伪边缘     

改进的Harris方法在交通事故现场图像拼中的应用

为了满足交通事故现场图像拼接时效性高的要求,本文提出了一种改进了Harris算法快速提取图像角点的方法。先采用3＆#215;3的预检窗口排除大部分疑似角点,保留候选角点,然后对候选角点采用Harris算法进行进一步的角点检测,确定最后的角点。实验结果表明,改进的方法不但能合理地检测出角点,还能大大提高角点检测速度,为交通事故现场图像快速拼接提供技术支持。     

基于特征点匹配的双面碎纸片自动拼接复原

本文以2013年全国数学建模竞赛B题为背景，主要研究双面打印碎纸片的拼接复原问题。利用特征点匹配的图像拼接算法，绘出了基于特征点的图像拼接流程图：根据图像拼接流程图建立了特征点检测算法Moravec角点检测算法模型，通过计算各像素的兴趣值、选择恰当的特征点、候选点，分析运算得到了附件5的碎纸片拼接复原结果。     

一般位置上的双摄像头立体视觉测距

本文基于一般位置上的双普通摄像头通过立体视觉的方法进行测距研究。为了减少错误匹配点对的个数,先采用Harris角点检测法对双摄像头捕获的两幅图像进行角点检测,然后将检测出的角点作为候选特征点,结合SIFT立体匹配算法实现对应点的匹配,从而进一步进行测距,该方法提高了测距的精度。     

基于特征点的图像拼接算法研究

在研究图像拼接理论的基础上,改进了拼接算法中的特征点匹配问题。首先利用Harris算法进行角点检测,然后利用归一化相关法进行匹配,接着利用该文中提到的方法来去除误匹配,从而得到匹配点对。实验结果证明该方法有效地提高了图像拼接的精度和速度。     

基于Harris和SIFT的特征匹配算法

为了克服传统的局部特征匹配算法对图像的尺寸和旋转比较敏感的缺点,文章提出了一种基于Harris和SIFT的特征匹配算法。该算法首先进行Harris角点提取,利用圆的旋转不变性和多维向量来构造SIFT特征描述子,然后利用极线约束降低对匹配点的搜索空间,最后度量特征描述子之间的欧氏距离,运用双向匹配技术得到最终的匹配结果。实验结果表明,该算法能提高匹配精度,减少匹配时间。     

基于Neyman-Pearson准则和小波模极大值的边缘检测

图像边缘是对图像进行进一步处理和识别的基础,边缘都是图像上灰度不连续的点或灰度变化剧烈的地方,所以说图像的边缘就是信号的高频部分,边缘检测就是检测信号的高频部分,是图像基本特征之一。但在实际的图像中,由于噪声的存在,边缘检测成为一个难题,所以本文提出了一种基于Neyman-Pearson准则和小波模极大值的边缘检测方法,该方法能很好地检测出图像的边缘。     

角点提取算法探讨

角点特征具有计算量少，匹配简单以及旋转、平移、放缩不变的性质，因此角点在图像配准与匹配、目标识别、运动分析、目标跟踪等应用领域都起着非常重要的作用，其中角点的提取精度至关重要，文章围绕角点的提取算法，详细介绍现有的各种研究成果及其特点，为相关人员的研究提供参考。     

一种高精度特征点检测和相机标定方法

针对特征点检测和相机标定精度问题,提出了一种亚像素级的角点检测和相机标定方法。该方法对角点的提取首先运用传统的方法得到初始值,并以此为初始值从棋盘格图像中搜索边缘,然后拟合边缘数据,并将拟合得到的曲线的交点作为角点的最终值,最后以这些角点作为标定相机的特征点对相机进行标定。实验结果表明,该方法提高了特征点提取的准确度和精度,以此提高了相机标定的精度。     

一种基于边缘增强的高效图论图像分割算法

EGBIS算法能够对目标图像进行快速的分割，但EGBIS算法在某些情况下，依旧存在高变化区域过分割和低变化区域欠分割的问题。为了在分割时更好保持视觉重要区域的完整，本文提出利用增强目标图像区域边缘的方式对EGBIS算法加以辅助，结合梯度信息和非极大值抑制来获取较为精准的区域边缘位置，并有选择的对显著边缘加以增强，对增强后的图像利用EGBIS算法进行分割。本文算法可以很好的提升分割结果的全局特性，在解决高变化区域过分割问题的同时，很好保持各视觉重要区域间的边界。本文所提出的边缘增强辅助，不会引入过多的运算，保持了原EGBIS算法高效的特性。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.