基于DM6467T的多路视频实时采集与显示系统软件设计与实现

在SEED-DVS6467T的硬件基础上,实现了8路模拟视频的实时采集并对采集到的视频分别进行标清和高清的实时显示的应用程序设计。实验结果显示,视频采集和回放性能稳定且实时性良好,高清视频回放与标清视频相比具有更高的清晰度和更广阔的视野。     

基于DM6467T多路视频实时采集与显示系统设计

在SEED-DVS6467T的硬件基础上,实现了8路模拟视频的实时采集并对采集到的视频分别进行标清和高清的实时显示的应用程序设计。实验结果显示,视频采集和回放性能稳定且实时性良好,高清视频回放与标清视频相比具有更高的清晰度和更广阔的视野。     

基于冗余存储的车载数据记录仪设计

针对传统车载数据记录仪缺少视频数据记录功能,不能实时回放视频数据,存储的数据容易丢失等问题,设计了一种基于冗余存储的车载数据记录仪。采用TMS320DM8168为主要视频处理芯片,实现记录仪的视频数据记录与回放功能;采用数据库管理两个固态硬盘,实现记录仪的冗余存储功能。结合连续工作72 h、高低温贮存实验结果,表明该记录仪运行稳定,视频记录与回放功能实用性强,数据存储的可靠性高。     

无线高清移动应急视频指挥系统具有无以比拟的便捷性和高性价比

移动高清视频终端HD601是北京紫荆视通科技有限公司自主研发设计的．最新一代具有高清双向视频通讯．视频实时高清存储和回传的3G高清视频移动终端。HD601支持语音／视频对讲．3G和WIFI网络传输能力、GPS导航和大尺寸触摸屏现场控制回放等功能。并且支持WCDMA和EVDO两种模式的3G网络．客户可以根据自己所在地区网络条件选择合适的网络模块。HD601终端支持多卡多通道绑定技术．可以提高可用的网络带宽．以满足特殊条件下实时传输对带宽的要求。HD601适用于车载移动或个人携带等多种环境．满足应急通讯、移动办公、现场验收、现场执法、应急指挥等突发和移动环境下的高清视频通讯。     

高清你的生活 亿莱科特EHP-600 MINI型高清播放器试用手记

高清数字电视、高清投影机已经走入寻常百姓家,可您有什么样高清播放设备,能让它们有用武之地吗?蓝光播放机,价格高高在上,片源难觅。HTPC,用来播高清,一是大材小用,功耗和性能都有浪费,四、五千的东西只用来放放电影,再加电费,让我们老百姓有些消受不起;二是,音、视频的回放质     

雷达视频回波信号记录与回放系统设计

介绍了一种雷达视频回波信号记录与回放系统。该系统基于FPGA和PCI总线设计。文中详细地描述了雷达数字视频信号数据帧的格式、记录与回放系统组成框图,讨论了大容量数据实时存储问题的解决方案,同时分析了视频数据记录和显示回放软件功能的设计。试验表明：该系统运行正常、稳定,满足使用要求。     

机载高清视频处理模块的设计与实现

现代飞机中各种信息传感器的使用越来越广泛,座舱显示系统需要处理的数据也越来越多。为了使飞行员能够认读更多更清晰地视频信息,研究了机载高清视频处理模块的硬件设计和逻辑软件算法。在座舱显示系统中实现了高清视频的显示,包括高清视频的缩放和叠加。满足系统对高清视频处理的要求。     

德州仪器推出业界第一款可为移动设备提供高清摄像功能的应用处理器

近日,德州仪器宣布推出OMAP3440处理器,该处理器是业界第一款可为移动设备提供全面高清摄像功能的应用处理器,从而使用户不仅能够录制高清视频,还能尽享最新智能手机与移动因特网设备（MID）的大显示屏所支持的众多新应用。该芯片解决方案充分利用TI的高性能IVA^TM多媒体加速器,能够支持720p的高清视频录制与回放。消费者可利用集成的摄像功能录制移动高清视频,其既能在家中的高清电视上播放,也能够通过移动设备快速与好友交流共享。此外,OMAP3440还同时优化组合了高性能与低功耗两大优异特性,能够为高速发展的MID市场实现高度稳定的Web浏览体验,使消费者能以全屏模式查看并欣赏各种格式的内容。     

基于FPGA的光纤与1.4标准HDMI接口转换方法

为实现高清视频的远距离传输,设计了一种基于FPGA实现高清视频在光纤和HDMI接口之间转换的方案.利用光纤通道接口控制芯片、HDMI收发处理芯片、FPGA等核心器件,通过FPGA编程对高清视频数据进行串行化处理,实现高清信号在光纤信道中的传输.方案可以有效延长高清信号传输距离并提高视频分辨率,广泛用于室外大型高清显示设备.     

基于DM8148的视频处理系统设计

设计了基于DM8148处理器的高清视频处理系统,介绍了各硬件模块的设计以及系统应用程序的编写。系统的采集模块将采集到的高清视频数据送入高清视频处理子系统。视频处理模块对视频进行去隔行、尺寸调节、添加OSD和H.264编解码算法处理,处理过的视频流经HDMI接口输出。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks