关于VLL影像匹配的实验

VLL(Vertical Line Locus)法是一种常用的基于物方的影像匹配方法,本文以灰度数码航空影像为影像匹配的数据源,采用VLL算法进行影像匹配的实验,对VLL影像匹配算法的计算速度、算法的优势、缺陷及改进方案、匹配结果的精度等方面进行讨论。     

Development of virtual cyber‐tour in the virtual reality system

This study is to explain the importance and the necessity of virtual cyber‐tour in a virtual reality environment, and to present a way of its realization as a means to surmount the fundamental constraints in current tourism, arising mainly from the individual health, cost, leisure time, and the low perception on tourism culture. This virtual cyber‐tour using virtual reality technology will not only provide various indirect tour experiences to the existing tour resources, but also develop a new type of tour system, leading to new worlds which have not been accessible to the public because of various restrictions coming from the current technology, transportation means, and physical limits of human body. Thus, the cyber‐tour will be a new tour resource of totally different concept and also, its industrialization will result in the developments of new industries for virtual reality system, video production, and display media, creating lots of jobs and added value.     

贾宝玉与浮士德形象之比较

贾宝玉形象反映了中国早期启蒙主义者以及那些怀才不遇、壮志难踌的士大夫们的思想追求和价值取向;浮士德形象反映了西方近代人的精神追求。不同的时代精神、文化背景赋予悲剧人物形象以不同的象征内涵。     

Image transfer from malls to stores and its influence on shopping values and mall patronage: The role of self-congruity

Little research attention has been paid to the image transference from a shopping mall to its stores. The study reported in this article proposes an integrative model dealing with the image transference phenomenon from malls to stores and its implications in terms of creating value for shoppers and enticing mall patronage. Structural equation modeling is applied to data collected from shoppers in two urban North-Amercian shopping malls. The findings are broadly supportive of the proposed model. Mall image spills over the image of the stores located in the mall, and this occurs through a shopper's self-congruity mechanism. Furthermore, the mall's image dimensions influence hedonic shopping value through self-congruity. The stores’ image dimensions differentially influence utilitarian and hedonic shopping values assessments. Both types of shopping values are strong drivers of mall patronage. The study also discusses the implications of the findings as well as its limitations and directions for future research.     

On the Ethics of Product Placement in Media Entertainment

Abstract

This study examines the ethical propriety of current trends in product placement in television and film entertainment. Historical background for the product placement concept and practice is provided. Changes in the marketing climate that have provided a push for product placement are outlined. A characterization of the product placement industry as it stands today, and the ethical issues raised by the practice frame the analysis. Three distinct “genres” of contemporary product placement are analyzed: (1) Product Placement, (2) Product Integration, and (3) Video Insertion. First, the rise of Product Placement, strategic changes in use, and increased dependence on revenues in production will be discussed. The second section examines a newly mounted form of Product Integration, whereby product placement plays a key role in content development and support of production in television and film. Third, the origins of Video Insertion will be traced to the Princeton Video Image invention of its proprietary L-VIS product. The ethical efficacy ofplacing “virtual advertisements” in space and times that do not naturally exist will be examined. The article closes with summary assessments and consideration of recommendations for action. Ethical issues focused on in the assessment include deception, artists' rights, and excess commercialism. Recommendations consider the climate for full and advance disclosure of product placements in media entertainment, the prospects for a voluntary rating system, and the threat of reclassifying product placement infused media entertainment as commercial speech.     

一种用于气象雷达的AFC系统

本文根据某型气象雷达的性能要求,提出了一种分频段跟踪的AFC系统方案,有效地解决了大范围跟踪、跟踪精度与接收机镜频抑制之间的矛盾,并且用一个一阶环路模型对系统跟踪误差进行了理论分析,分析结果与工程实践均证明本方案是可行的。     

小波分形插值医学图像处理

为了得到高分辨率图像，本文利用小波变换后各方面上的高频图像具有相似性的特点，提出了小波分形插值处理医学图像的方法。仿真实验表明，这种处理方法比常用的方法（如双线性插值等）具有更好的效果。     

应用种子填充算法提取图像的形状特征

本文表述了种子填充算法原理和实现，讨论了在二值化图像处理中应用种子填充算法提取图像区域和边界的方法，并介绍了在此基础上求解图 像的几何形状参数的方法，最后介绍了几种与此相关的二值图像处理技术在实际中的应用。     

关于雷达图像三维显示的探讨

探讨了在个人计算机平台上，实现雷达图像三维显示的一种方法，并用类ＰＡＳＣＡＬ语言，描述了实现雷达图像三维显示的算法。     

基于改进的遗传算法的快速图像相关匹配技术

本文基于遗传算法在图像相关匹配中的具体应用，提出了包括新的初始种群的选择策略以及调节收敛与发散因子、防止近亲繁殖的改进遗传策略，通过对实际图像的相关匹配仿真，证明了这些措施能有效提高遗传算法寻优可信度与寻优精度。