我们选择了JVC的Digital—S：谈数字设备在视频领域的使用

在科学技术迅猛发展的今天,基于数字视频信号压缩技术的数字录像机和计算机非线性编辑系统给视频领域带来了质的飞跃。在电视节目的后期制作中使用非线性编辑系统,大家已经不象几年前那样处于观望阶段,越来越多的电视台和制作单位纷纷采用了数字多媒体用以提高节目质量。非线性编辑系统的工作过程就是把所需的视频、音频素材输入硬盘,在硬盘中经过剪辑,加上特技、效果,从而完成节目的制作。非线性编辑系统取代了传统的特技台、调音台和     

制播一体网的探讨与实践

近年来，数字多媒体技术在各级电视台得到了普遍应用，非线性编辑技术已被广泛地用于电视节目制作过程中。由于非编的高指标及多功能，许多节目的制作已开始依赖于非编系统，并正在取代传统的线性编辑设备，成为电视节目后期制作设备的主体。非编系统的使用不仅为节目包装、渲染带来了方便，同时使节目制作实现网络化、数字化成为可能。１现有系统状况采用非线性编辑设备制作一个节目，需经过上载、串编、特技过渡、上字幕、下载等多个环节，繁重的工作量与非线性单机工作的矛盾日趋明显。因此，国内一些制作非编设备的大公司相继推出网络制…     

非线性编辑视频节目制作

1概述在电视的发展过程中,视频节目的后期制作经历了物理剪辑,电子编辑和时码编辑的发展阶段,现在非线性编辑引入了磁盘记录和存储等新的技术和手段,使电视节目制作更向前迈了一大步。在非线性编辑系统中,所有的素材都以文件的形式用数字格式存储在记录媒体上像（硬?..     

如何选择非线性编辑系统

随着计算机技术的迅猛发展,以及超大规模集成电路技术、信息处理与数字视频压缩技术的突破,不但使计算机可以实时采集和重放高质量的视频图像,而且电视节目制作人员还可借助于计算机数字视频技术对电视图像进行超乎想象的创作,从而把电视节目制作带入一个数字化的新境地。这就是当前在电视节目后期制作中最具革命性的、最引人注目的、最有发展前景的非线性编辑系统。１非线性编辑系统及其工作过程和优点 非线性编辑系统是一种被各国电视机构日益广泛采用的以计算机为平台的电视节目后期制作设备。此系统不以磁带为媒体而以硬磁盘为记录…     

普通非线性编辑系统的配置

随着数字技术的发展 ,电视节目的后期制作进入了数字化时代。电视节目后期制作设备数字化 ,使庞大的模拟编辑、特技、字幕等系统简化为非线性编辑系统 ,家庭和一般的影视作品制作者都能用不同档次的非线性编辑系统 ,自己动手编辑制作电视节目。对普通非线性编辑系统的配置作系统介绍     

电视节目制作领域中的非线性编辑系统

非线性编辑系统是以计算机为操作平台的电视节目后期编辑制作设备,随着计算机技术的飞速发展,非线性编辑系统已广泛应用于电视节目的制作.介绍了非线性编辑系统的组成及其在电视节目制作中的主要功能.     

非线性编辑系统和线性编辑系统的探讨

在新型多媒体时代不论是电视节目还是互联网媒体,对于影像视频的编辑技术对于现代新型多媒体的传播和影响力起着至关重要的作用。非线性编辑系统和线性编辑系统均是现代影像视频最常用的编辑系统,如何认识两种编辑系统,如何根据其技术特点选用两种编辑系统,成为了媒体编辑人必须面对的问题。本文对线性编辑和非线性编辑的基本概念、线性编辑和非线性编辑的优缺点以及非线性编辑和线性编辑的使用选择等方面做了简单阐述。可以对利用两种系统的媒体编辑人提供一些建议。     

普通非线性编辑系统的配置

随着数字技术的发展,电视节目的后期制作进入了数字化时代.电视节目后期制作设备数字化,使庞大的模拟编辑、特技、字幕等系统简化为非线性编辑系统,家庭和一般的影视作品制作者都能用不同档次的非线性编辑系统,自己动手编辑制作电视节目.对普通非线性编辑系统的配置作系统介绍.     

普通非线性编辑系统的配置

随着数字技术的发展,电视节目的后期制作进入了数字化时代.电视节目后期制作设备数字化,使庞大的模拟编辑、特技、字幕等系统简化为非线性编辑系统,家庭和一般的影视作品制作者都能用不同档次的非线性编辑系统,自己动手编辑制作电视节目.对普通非线性编辑系统的配置作系统介绍.     

线性编辑和非线性编辑

介绍线性编辑的概念、非线性编辑的概念及其优缺点，以及二者的主要区别，非线性编辑系统的工作原理。认为两种编辑方式各有所长，应取长补短，使它们在电视节目后期编辑制作中发挥重要作用。     

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