智能家居虚拟场景设计与实现

面向智能家居应用,以Unity 3D为虚拟现实开发平台,给出了用虚拟智能化家庭场景实现虚拟场景家电设备及环境监测设备的模型设计。平台中的虚拟人可以在虚拟场景中自由漫游,并且通过虚拟人手中的终端设备,实时家电控制并获得环境监测设备的实时数据,使得家庭控制更加生动形象,实现虚拟与现实的融合。虚拟场景的设计有助于智能家居的宣传、培训和展示,同时让用户通过远程操作,也可以体验到真实的智能家居系统,零距离展示智能家居实验室的科研成果。     

虚拟EAST系统的设计与实现

虚拟EAST系统能三维再现EAST装置,并提供360度全方位浏览EAST内部结构及点击访问相关信息的功能.交互式虚拟EAST的建立使用了3ds Max和虚拟现实建模语言(VRML)技术,3ds Max提供了良好的可视化开发环境,可以利用其产生高质量的3D模型;VRML是Web上建立三维虚拟模型的标准语言,可以构造虚拟场景并实现用户与虚拟场景的互动.初步构建了虚拟EAST系统,可以动态交互地再现EAST装置,为全面虚拟EAST的三维物理实验建立了基础.     

虚拟EAST交互式3D建模研究

交互式虚拟EAST的建立使用了3dsmax和VRML技术;3dsmax提供了良好的可视化开发环境,可以利用其产生高质量的3D模型;VRML是web上建立三维虚拟模型的标准语言,可以构造虚拟场景并实现用户与虚拟场景的互动;基于3ds max和VRML的三维建模技术以其快捷方便等优点在虚拟现实系统构建及其相关领域得到了广泛应用;本文初步构建了虚拟EAST系统,可以动态交互地再现EAST装置,为全面虚拟EAST的三维物理实验建立了基础.     

基于Unity平台的漫游交互系统的设计

随着网络及计算机技术的发展,3D实景虚拟漫游已经作为一种全新的展示在房产销售中普遍运用。本系统运用了3Dmax、Photoshop、Unity3D软件,参考现实广场小区,创建虚拟场景。为达到预期效果,通过骨骼动画及JavaScript语言实现控制角色移动转向等动作,用户可以对场景自主漫游、浏览,让用户真正沉浸在虚拟交互环境当中,实现用户与虚拟环境直接交互。     

物联网智能家居虚拟装配交互系统的设计与实现

在物联网智能家居设备装配过程中容易因误操作而造成设备损坏,甚至引起电网事故、人身伤亡事故、财产损失惨重等问题.为了解决这个问题,设计了物联网智能家居虚拟装配交互系统.该系统使用Unity3D实时渲染引擎进行三维场景展示,交互端则使用Unity3D的物理引擎模拟事件触发,选用具有行业标准的物联网数据库来控制智能家居的实时场景交互.通过多角度镜头和实时参数调节,用户在三维引擎操作端可实时查看智能家居安装的进度和交互效果.     

基于Web的虚拟校园漫游系统的开发

为实现在Web网页上进行漫游的3D体验以及校园四季场景360度实景展示,以华北理工大学(曹妃甸校区)为虚拟仿真环境,基于三维建模技术、信息技术以及虚拟现实技术等对三维场景建模与优化技术、角色与场景交互技术等进行深入研究.对系统设计方案和开发流程进行分析,在此基础上重点阐述系统实现的关键技术;集成整合并进行Interne...     

基于Web3D的虚拟场景漫游的设计与实现

介绍了Java3D与VR相结合的Web3D应用;采用了三层式的Client/Server结构和分布计算模型设计系统体系结构,提出了在Java3D中获取场景对象实例的方法,给出了在Java3D场景中实现虚拟场景中漫游的方法。采用Java3D实现与用户交互虚拟三维场景,并给出了部分实现细节。     

基于VRML的三维虚拟校园应用研究

虚拟现实技术和Web3D技术的发展,催生了对三维虚拟校园的研究与构建。基于VRML的三维虚拟校园通过数据采集、平面图制作、三维模型建立和三维地图发布等主要步骤,实现了对校园的建筑物进行了真实场景的再现。     

基于Web3D的虚拟场景漫游的设计与实现

介绍了Java3D与VR相结合的Web3D应用；采用了三层式的Client／Server结构和分布计算模型设计系统体系结构，提出了在Java3D中获取场景对象实例的方法，给出了在Java3D场景中实现虚拟场景中漫游的方法。采用Java3D实现与用户交互虚拟三维场景，并给出了部分实现细节。     

三维虚拟场景漫游技术研究与实现

虚拟漫游是虚拟现实（VR）的重要技术分支,同时实现虚拟现实系统＂沉浸性＂与＂交互性＂的关键。VRML构建虚拟场景,鼠标和键盘结合的Java3D控制实现用户与虚拟场景对象之间的虚拟三维空间的动态漫游,从而增强虚拟场景的交互性和用户可操作性。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.