基于CMOS图像传感器的视频采集系统

设计了一个基于CMOS图像传感器的视频采集系统,.详细介绍了该系统的硬件电路和时序设计,系统采用FillFactort公司的IBIS5-A-1300芯片作为图像采集芯片,通过USB2.0控制器EZ-USB FX2芯片作为数据采集芯片,实现了图像数据的实时采集.试验结果表明,该系统视频采集系统成像清晰,可靠,能够很好的完成视频采集的要求.     

双DSP的多路视频监控系统设计

采用两片TI公司的专用视频处理芯片TMS320DM642设计了一种多路视频监控系统.其中,DSPI与视频采集芯片SAA7113共同完成多路视频的采集,并拼接成一路视频图像输出;DSP2完成对DSP1输出图像的采集、压缩和视频传输.该方案结构灵活、拓展性强,可以实现4路视频的实时采集与传送.     

基于FPGA的高速图像采集系统的研究与实现

介绍了以FPGA(FieldProgrammableGateArray,现场可编程门阵列)为核心芯片的高速图像采集系统的硬件结构和工作原理,图形采集频率可以达到13.5MHz,该系统还采用了PHILIPS公司推出的视频A/D芯片SAA7111,将电视信号转换为数字信号,并由FPGA作为控制器将数字信号存入RAM。讲述了FPGA在图像采集与数据存储部分的VerilogHDL模块的设计,并给出采集同步模块的VerilogHDL源程序。     

基于USB3.0高清内窥镜摄像系统的设计

基于USB3.0高清内窥镜摄像系统具有结构简单、成本低廉、携带方便、图像质量高清、传输速度快(5 Gb/s)以及具有设备的即插即用和热插拔、免驱等优势。该系统的整体架构包括电源管理系统的设计、图像采集与图像处理系统的设计和USB3.0传输系统的设计。以CYUSB3065作为主芯片控制整个系统,以OV5640作为图像传感器芯片用来采集并处理图像数据,将处理过的图像数据经USB3.0接口传输至上位机,然后通过媒体播放器软件显示采集到的视频图像,最终输出1080p全高清视频图像。     

基于FPGA的视频图像采集系统的设计

分析了各种视频采集方案的研究现状.对如何采用CCD摄像头采集高分辨率、高质量的图像以及基于FPGA的嵌入式视频图像采集系统的实现方法进行了研究.采用了以摄像头 解码芯片模式为采集方案,针对视频解码芯片ADV7181B,实现了I2C总线配置、ITU656解码、VGA显示模块的设计.设计的视频采集控制器已经在Altera公司的CycloneⅡ系列FPGA(EP2C35)上实现.结果显示本设计具有速度高、成本低、易于集成等优点.     

基于DSP与PCI的视频采集卡设计与实现

设计了一种基于DSP和PCI的视频采集卡,以MPEG-4作为视频压缩编码,很好地解决了视频采集对实时性传输的要求;在系统硬件中采用SAA7113 H视频转换芯片,把采集的视频图像转化为数字信号,然后存入两块高速SRAM;同时由CPLD负责控制切换高速双SRAM,以便交替存储视频图像数据;然后用DSP TMS320VC5502作为视频图像处理器,完成对采集视频图像的MPEG-4压缩编码,并且在CPLD控制下将压缩完的数据通过PLX9054接口芯片传输到PC机总线;在系统的软件设计中采用了MPEG-4视频压缩编码算法;最后通过对系统的功能测试和稳定性测试,确保系统设计目标的实现;测试结果表明,系统各项功能和性能指标均符合设计要求。     

基于DSP和CPLD的视频图像采集处理的设计与实现

提出了基于DSP和CPLD的视频图像采集、处理系统的设计与实现方法,系统硬件平台主要由专用视频解码芯片、可编程逻辑器件以及数字信号处理器等组成.讨论了视频图像信号处理的基本构成、原理,采用TVP5150视频解码芯片采集视频信号、输出图像数据码流,配置XC95144 CPLD芯片进行系统逻辑控制,利用TMS320VC5416处理嚣和处理算法软件进行数字图像信号处理,实现了视频图像采集、存储、传榆、检测和锐化.系统设计是有效和可行的.     

FPGA的3D视频前端处理与显示系统设计

针对目前国内3D电视芯片的缺少而导致3D片源短缺,传统视频处理过程复杂,以及红蓝3D视频观看时出现重影、亮度降低等问题,本文设计了一款基于FPGA的3D视频前端处理与显示系统。以两路摄像头采集的信号作为输入源,采用Altera公司的Cyclone IV系列FPGA芯片为处理核心,实时地完成数据采集和图像处理,采用LCOS微显示器件作为显示单元,得到了效果逼真的3D视频图像。     

SCCB总线配置的FPGA视频采集与显示系统设计

提出了一种采用Altera公司的EP2C5Q208CN作为主控芯片,OV7670模块作为视频源输入并以SDRAM作为数据缓存的方案。通过对SCCB总线配置、图像数据采集、图像数据预处理、VGA显示等模块设计,完成了视频数据的采集与图像的输出显示。经过相关测试,本设计具有成本低、实时性强、可靠高好等优点。     

视频图像采集系统的设计与实现

介绍了视频图像采集技术的结构和原理，对视频图像采集系统设计了中的一些关键问题－数字式解码芯片，ＤＳＰ技术以及ＰＣＩ总线技术进行了讨论。     

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.     

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。     

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.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

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     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.