基于数字图像处理的图像分析的研究

图像是能在人类的中产生视觉图案的客观对象,图像包括:自然景物,相机拍摄到的图片,用数学方式描述的图形图像等,自然界中的图像都是模拟图像,在计算机使用之前,电视,电影,照相机都是使用模拟信号进行信号之间的传输。然而在计算机普遍使用之后,图像要在计算机中显示出来,必须使用数字信号,所以就产生了数字图像。因此用数字图像信息进行图像分析,能够更为方便的将图像信息呈现在人类视觉中,使图像分析变得简单化。     

有关220kV无人值守变电站监控系统探究

本文主要围绕变电站的数字化远程图像监控系统对变电站运行中的图像以及视频的智能化收集、处理和传输进行探讨论述,并结合某地区220kV变电站的计算机集中监控系统,对有关220kV变电站在无人值守情况下的监控系统的设计以及应用进行探究。     

3G无线双卡远程监控在公安应急指挥通信中的应用

针对现公安应急指挥通信中3G无线图像传输系统带宽无法有效控制的不足,提出了一种基于WDR(Wireless Dual-card Revolution)无线双卡技术的控制方法,同时插入两张SIM卡,双卡绑定传输,增加带宽,同时图像的传输可以根据当前网络带宽情况进行灵活调节,既提高了带宽复用率及图像传输稳定性,又同时具有更好实时性,较好满足了公安远程视频监控图像资源高清稳定的要求。     

计算机通信中的传输控制技术研究

计算机的使用在人们的生活中已经越来越普遍,人们可以依靠计算机进行信息的传输,为工作和生活上带来了便利和快捷。而信息数据想要成功传输,就要通过计算机检测与控制技术来完成。因此,相关技术员要高度重视计算机通信中的传输控制技术,从而保证数据传输的高效稳定性,文本针对计算机通信中的传输控制技术进行了深入研究,并对所存在的问题,提出了相关的解决措施。     

监控系统图像传输延时及优化方案

高速公路监控系统图像传输存在延时现象。图像在传输过程中经过编码、传输和解码过程，对采集的图像进行压缩、传输、解压。压缩、解压会耗用一定的时间：不同传输方式的带宽不同，也会影响数据传输的实时性。下面从编码、传输及解码三个方面，阐述图像传输方式以及在目前技术下的优化方案。     

综合步线系统应列入未来办公大楼建筑标准化内容

随着信息技术的飞速发展，办公大楼智能化也越来越受到人们的重视。综合布线系统好像是大楼中的中枢神经，它把人工智能计算机网络技术大量引入楼宇中，是语音，数据，文字，图像结合一体的传输网络，做到了一次投资长期受益，实现了办公大楼自动化。     

关于监控的抗干扰技术分析

视频基带传输是指视频信号不经过频率变换等任何处理由图像摄取端通过同轴电缆直接传输到监视端的传输方式,图像在传输时直接利用同轴电缆的0～6MHz来传输,非常容易受到干扰,使图像出现网纹、横纹和噪点影响监视效果.对于基带传输视频干扰,从干扰源角度分为交流声干扰和空间电磁波干扰,从干扰切入方式分为传导式干扰和辐射式干扰.     

关于监控的抗干扰技术分析

视频基带传输是指视频信号不经过频率变换等任何处理由图像摄取端通过同轴电缆直接传输到监视端的传输方式，图像在传输时直接利用同轴电缆的0—6MHz来传输，非常容易受到干扰，使图像出现网纹、横纹和噪点影口匈监视效果。对于基带传输视频干扰，从干扰源角度分为交流声干扰和空间电磁波干扰，从干扰切入方式分为传导式干扰和辐射式干扰。     

利用3G网络实现图像传输

3G使图像的传输和接收在任意点都可以进行。文章主要论述在3G无线网络上提供图像传输的质量。综合考虑视频编码特性和时变无线信道状况,实现了基于最小失真的信道编码和联合信源。     

通信小波分析在图像压缩中的应用

随着计算机、传感器和微电子技术的高速发展,图像信息的记录存储和传输正朝着数字化方向发展,人们在交换图像信息方面的需求也越来越大,图像信息已经成为通信和计算机系统的一种重要的处理对象.但是图像经数字化后形成的数据量非常大.直接存储和传输这些数据不但开销很大,而且有时设备也承受不了如此大的负荷.为了能够利用有限的空间和带宽自检存储与传递大幅图像,并且根据实际需要,获得不同分辨率或质量的重构图像,这就需要图像压缩技术不仅要有良好的压缩率而且还可以灵活处理压缩码率.小波分析作为一种崭新的信号分析和处理方法,得到了越来越多的重视和研究.这种方法在时域和频域同时具有良好的局部化特性,能够精细地呈现信号时变的频谱,成为继傅立叶分析之后最重要的信号分析工具之一.本文共分四个大部分.第-部分绪论,论述了图像压缩的必要性及可能性,并论述了小波分析的优势.第二部分介绍图像压缩技术,主要包括图像压缩基本理论的起源以及图像压缩编码的方法.第三部分介绍将小波图像压缩算法.     

Incumplimiento del salario mínimo en Europa central y oriental

En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.     

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.     

Cultural Economy Planning in Creative Cities: Discourse and Practice

While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.     

Input/output ranges and performance: an examination of US machine tool producers

Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.     

Sixty years of discrimination and diversity research in human resource management: A review with suggestions for future research directions

This article reviews discrimination and diversity research published in Human Resource Management (HRM) over the past 60 years. While discrimination and diversity are very different constructs, it is often informative to study them together, because when people recognize each other's diversity, this can result in bias, stereotyping, and discrimination. We conducted bibliographic searches for terms related to discrimination and diversity as well as a manual search through every title and abstract published in HRM over the last 60 years to assess article relevance. The search resulted in 135 research articles with 136 unique studies (i.e., samples) which are reviewed in this article. Sex and race are the demographics that have been examined the most in HRM, while religion has been examined the least. Moreover, the number of studies examining lesbian, gay, bisexual, transgender, and queer (LGBTQ) employees in the workplace in HRM has grown quickly within the past 10 years, culminating in a recent meta‐analysis. Our review looks at some of the earliest research published, the most recent research published, and the overall trends we identified in the research over the years for both discrimination and diversity articles. We then make future research suggestions and recommendations to advance the study of discrimination and diversity in the coming years.     

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 Early History of the Cumulants and the Gram-Charlier Series

The early history of the Gram-Charlier series is discussed from three points of view: (1) a generalization of Laplace's central limit theorem, (2) a least squares approximation to a continuous function by means of Chebyshev-Hermite polynomials, (3) a generalization of Gauss's normal distribution to a system of skew distributions. Thiele defined the cumulants in terms of the moments, first by a recursion formula and later by an expansion of the logarithm of the moment generating function. He devised a differential operator which adjusts any cumulant to a desired value. His little known 1899 paper in Danish on the properties of the cumulants is translated into English in the Appendix.     

Capturing the Implications of Services Trade Liberalization

This paper evaluates the impact of service sector trade liberalization on the world economy by a ten-region, eleven-sector CGE model with import embodied technology transfer from developed countries to developing countries. Simulation results show that service sector trade liberalization not only directly affects world service production and trade, but also has significant implications for other sectors in the economy. The major channel of the impact is through inter-industry input-output relations and TFP growth induced from services imported by developing countries from developed countries, which may be embodied with new information and advanced technology.