虚拟训练系统中大屏幕多点触摸研究与实现

研究虚拟训练中的人机交互问题,使虚拟训练系统支持多点触摸操作.针对鼠标键盘交互沉浸感不足,训练效果不佳,而专业VR设备成本太高等问题,提出利用多点触摸设备作为人机交互接口以改善用户体验.研究了几种常见的多点触摸技术,设计并实现了一种采用光学感应原理的大屏幕多点触摸系统;研究了多触点信息的传输机制,改进了虚拟现实开发软件Virtools,使其能够识别多点触摸手势并做出正确响应.应用实践表明,训练系统沉浸感强,能够准确识别并跟踪多个红外触点,响应迅速,很好地满足了虚拟训练的需求.     

基于双目视觉的触摸技术研究

设计了一种基于双目视觉技术的触摸屏实现方法,采用两个普通摄像头作为传感器实时捕捉触摸物的存在及其动作,并利用计算机视觉技术实现对普通显示屏幕的虚拟触摸功能,使其具有单击、双击、拖动以及多点触摸等功能。     

交互新方式——多点触摸技术初探

多点触摸(Multi-touch)是当前数字产品领域最灸手可热的交互技术。该文介绍了多点触摸的基本概念、市场状况,阐述了多点触摸技术的发展历史,以及各种多点触摸的实现技术。     

交互新方式——多点触摸技术初探

多点触摸（Multi—touch）是当前数字产品领域最灸手可热的交互技术。该文介绍了多点触摸的基本概念、市场状况,阐述了多点触摸技术的发展历史,以及各种多点触摸的实现技术。     

基于Android平台红外触摸屏驱动的开发

通过对Android操作系统的Input子系统架构及USB协议分析,开发了基于Android input子系统及USB的红外触摸屏驱动,实现了多点触摸数据的上报。在开发过程中,根据USB协议配置红外触摸屏触摸数据的上报格式,实现了触摸屏与Android系统之间的通信。在装有红外触摸屏的Android电视上,通过串口监视到了触摸点数据上报到Android系统的过程。     

基于AVR单片机的触摸屏人机界面系统设计与实现

该文介绍了以AVR为核心的触摸屏和LCD的应用。通过AVR单片机对触摸屏信号的采集和计算,获得触摸点在触摸屏幕上的坐标,根据不同的坐标获取液晶屏上相应的显示内容,并利用8条并行数据线将显示的内容送至LCD显示。当LCD液晶屏被刷新后会进入相应的显示界面,最终实现人机界面系统的设计。     

MTDriver:一种改进的多点触摸桌面工具包

目前多点触摸桌面广泛采用计算机视觉技术实现.触摸信息是通过手指反射的红外线在红外摄像机下成像,然后对红外相机得到灰度图像进行手指区域提取,跟踪,校正得到.由于桌面表面红外光照射不均衡,环境噪声干扰等因素,目前存在的多点触摸工具包在检测和跟踪方面效果较差,也没有考虑手指运动和摄像机畸变的影响.本文提出基于图像局部极值点检测手指触摸区域,结合手指运动和相邻帧信息进行手指跟踪,实现摄像机畸变校正的多点触摸桌面系统工具包MTDriver.实验结果表明,MTDriver 跟踪识别准确,效率高,鲁棒性强,具有实用性.     

多点触摸概述与手势实现

多点触摸随着iphone的推出风靡全球,是当今最炙手可热的人机交互方式。该文对多点触摸的原理和编程模型进行简要的介绍,并给出了一些触摸手势的C#编程实现。     

一种独立于应用程序的多点触摸交互中间件*

在对鼠标事件特性分析和触摸手势描述的基础上,设计实现了一种基于鼠标事件映射的多点触摸交互中间件,包括声明法、映射法两种实现途径。该中间件能够不进行程序改造而在传统基于鼠标交互的应用程序上实现多点触摸,具有平台无关的通用性。最后通过在多款地理信息系统软件中的应用对该中间件进行了验证和评估。     

点石成金 本本也玩多点触摸

笔记本的触摸板只能单指操作?iPhone带来的多点触摸任谁不心动,操作起来是那么方便,比单指划来划去的强多了……多点触摸我也能玩现在有部分采用Elantech触摸板的笔记本可是已经实现多点触摸功能了,这个所谓的多点触摸,究竟有多好用呢?不妨我们     

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。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

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     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

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.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.