面向彩印标签的手机数码识别及应用

针对Android手机拍摄标签数字码实时识别的需要,以及拍摄图像具有分辨率低、亮度不均匀、背景复杂等特点,由手机拍摄直接获得灰度图像后,通过数字区域投影定位,获取只包含数字的图像;采用二值化进行灰度图像到黑白图像的变换;通过投影及归一化处理进行数字码图像分割,并对每个数字码图像进行细化获取细化数字码;基于统计学抽取数字码的特征;建立数字码模式特征后,采用最近邻域判别函数进行数字码识别,取得了良好的识别效果。     

基于iPhone手机的数字码实时识别与应用

根据苹果手机拍摄防伪标签数字实时识别的需要,针对防伪数字字号较小的因素和苹果手机因拍摄距离的原因造成的图像缩小、数字模糊、背景复杂等问题进行处理,提高识别精度。首先通过人工选取数字码区域,并进行背景数字分离,定位获取数字图像;其次采用灰度化和二值化得到黑白图像;然后通过投影对数字码图像进行分割,并对每个数字图像进行归一化、锐化和细化;基于统计学抽取数字码的特征,采用最近邻域判别函数进行数字码识别,取得很好的识别效果。     

Android平台的车辆VIN识别系统设计

为提高车辆识别码(VIN)录入的效率,设计并开发基于Android平台的车辆VIN识别系统.首先调用Android手机摄像头完成对VIN的定位及其图像获取;其次对获取的VIN原始图像进行灰度化、顶帽变换、图像增强和二值化;然后基于Google公司提供的开源Tesseract-OCR识别库[1]对预处理后的VIN图像进行字符特征提取,与训练生成的VIN字符库做匹配识别;最后为确保获得正确结果,对识别输出的VIN根据其编码规则进行校验和人工校正[2].经过各种测试证明,各项功能实现效果很好,能有效地识别出多数车辆识别码[3].     

Android系统的蓝牙远程控制研究

Android操作系统以开源、界面友好等特点在智能手机、智能手表等可穿戴设备中广泛应用.设备之间通过蓝牙通信进行信息的交互,为了实现远程控制功能,需自定义蓝牙数据结构,实现对普通数据信息和控制信息的区分.在实例中实现了Android手机之间远程控制拍摄照片以及实时预览图像的功能.采用RC4和RSA混合加密方式对蓝牙发送的数据进行加密,来保证发送数据的安全性.     

基于Android平台的NFC技术的研究与实现

本文主要研究NFC近场通信的关键技术及基于Android平台的实现途径。首先对Android系统平台和短距离无线通信进行了介绍,列出了目前主流的短距离无线通信技术;然后对NFC关键技术进行研究分析,对NFC技术的发展现状和主要特征、NFC数据交换格式、NFC标签、NFC相关规范进行了总结;最后介绍了Android平台上NFC应用的开发步骤,并介绍了基于Android平台开发的NFC标签的管理系统,该系统能够实现对NFC标签的读取、写入、格式化和查询等基本功能;除此之外,该系统还实现了通过NFC标签进行手机模式切换的创新功能。     

Android

话说Android4．0的一大亮点是增加了面部识别解锁功能,但还有很多老手机是Android2．3系统,难道我们就与面部识别解锁无缘吗？其实通过《人脸解锁》这款应用就能实现这一功能。通过拍摄至少7张常用角度的脸部照片,我们就能用自己的脸部来锁定应用程序和屏幕了!     

基于Android的通讯录实时同步功能

随着Android系统的不断发展,Android系统被应用在各种设备上面,包括将Android系统应用到有线电话上.因此需要开发一个通讯录能够在搭载了Android系统的有线电话和手机之间实现数据实时同步.通讯录的客户端和服务端是通过Socket来建立连接的,然后采用Handler机制发送数据和读取数据,实现了通讯录数据的实时同步.经过测试,通讯录实现了手机与有线电话的通话记录,增加、修改和删除联系人的实时同步功能.     

远程遥控移动机械手的可视化实时控制

采用OTG接口连接摇杆手柄的Android手机和无线视频传输方案,来实现对移动机械手的可视化实时控制。本设计以OMAP4430开发板和Android手机为核心,通过响应摇杆水平、竖直方向的移动事件和手柄按键事件来控制机械手的地表移动及机械手马达操作,同时借助车载USB摄像头拍摄720P视频,经H264编码后用无线网卡发送到Android手机,解码后显示在控制界面上。实验结果表明,可视化远程遥控机械手能够实现全方位移动、捉取地面目标等功能,同时无线视频传输帧率达到28fps,满足实时视频传输要求。     

多天线空分定位RFID阅读器的设计

RFID是近年来发展迅速的非接触式自动识别技术,为使基于RFID技术的智能管理系统具有定位识别的功能,本文提出了多天线空分定位RFID阅读器的设计方案,即采用阅读器与多个检测天线的分离式装置,使每个天线仅识别自己工作区域内的标签,天线的地址码与标签的数据共同构成传送的信息,从而使阅读器具有定位识别标签的功能。基于本文提出的RFID阅读器的智能战备药箱管理系统可以为战备药品提供安全、准确、实时的信息收集、处理和查询,该管理系统不仅可以提供定位识别,还可以节约系统的成本,具有广阔的应用前景。     

基于Android系统的人脸识别门禁系统的设计

智能门禁系统是安全防护系统中重要的组成部分 ,本文采用人脸识别技术与手机端身份识别技术,设计了一种基于Android的人脸识别门禁系统,实现了用户在Android手机端进行人脸识别身份验证获取服务器发来的二维码作为开门“软钥匙”,用获取到的二维码去智能门禁终端进行扫码开门的功能。在人脸识别方面,采用了Adaboost人脸检测算法和PCA人脸识别算法,并结合OpenCV实现了门禁系统的人脸识别。测试结果表明：本系统具有良好的易用性、安全性,并且获得较高的人脸识别率和识别速度,从而弥补传统门禁的缺陷与不足。     

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。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。