基于VISIDEP的自显式兼容彩色立体电视

论述基于ＶＩＳＩＤＥＰ 技术的立体电视实现方案及其存在的问题和改进措施。指出该主案是最适合于广播电视的一种立体电视方案。     

一种超高清激光电视系统的设计方案

文章介绍一种超高清激光电视系统的设计方案,详细阐述了方案的设计原理.系统TV SOC模块将电视信号处理成像素为4M×2N@f的超高清图像信号,图像处理模块对超高清图像信号进行采样、分割和倍频处理后得到2路（√2 M×√2）N@2f的高清图像信号,DMD驱动模块对2路高清图像信号进行合并处理得到（2√2M×√2N@2f）图像信号来驱动DMD芯片,DMD芯片投射出分辨率为（2√2M×√2N）的图像光;采用振镜使DMD投射的相邻帧图像光位置微移,从而显示出4M×2N@f的合成画面.该方案可以快速应用于超高清激光电视产品,具有广泛应用价值.     

一种裸眼3D电视系统的设计方案

本文提出一种裸眼3D电视系统的设计方案,详细阐述了方案的原理及关键技术的实现.方案系统先将电视信号处理成单视点或双视点图像,然后将单视点或双视点图像转换成N个视点图像,并将N个视点图像交织成一幅合成图像来驱动裸眼3D屏发出图像光实现裸眼3D显示.该方案可快速应用于柱状透镜式和光栅屏障式裸眼3D电视产品,具有广泛的应用价值.     

Design and performance of a high-resolution image sensor for color TV applications

This article describes the design and development leading to the fabrication of a high-performance frame-transfer CCD image sensor which can be used in a wide variety of consumer imaging applications, based on file NTSC color TV standard. The sensor is built using the virtual-phase CCD technology and has 488 lines and 780 pixels per line. The antiblooming structure incorporated in the device uses an electron-hole recombination principle, and the sensor is suitable for attachment of a separate striped color filter. Device processing and design considerations derived from the two-dimensional simulations of potential profiles are discussed together with other important parameters such as dynamic range, resolution, charge transfer efficiency, reduction of hot-hole effects, and clocking requirements. Some details of the cell layouts in various regions of the device are also briefly described. The overall sensor performance and application potential are demonstrated by showing the image reproductions of several test charts.     

Biorthogonal wavelet system for high-resolution image reconstruction

High-resolution images are often desired but made impossible because of hardware limitations. For the high-resolution model proposed by Bose and Boo (see Int. J. Imaging Syst. Technol., vol.9, p.294-304, 1998), the iterative wavelet-based algorithm has been shown to perform better than the traditional least square method when the resolution ratio M is two and four. In this paper, we discuss the minimally supported biorthogonal wavelet system that comes from the mathematical model by Bose and Boo and propose a wavelet-based algorithm for arbitrary resolution ratio M/spl ges/2. The numerical results indicate that the algorithm based on our biorthogonal wavelet system performs better in high-resolution image reconstruction than the wavelet-based algorithm in the literature, as well as the common-used least square method.     

A pre‐emption framework for UMTS compatible satellite system supporting multimedia traffic

The pre‐emption procedure is an important part of the radio resource management when dealing with the emergency traffic. It allows resources to be allocated to higher priority connections by pre‐empting lower priority connections. The provision of the pre‐emption mechanism becomes much more important in the case of satellite systems such as the Inmarsat Broadband Global Area Network system, which aids in providing the communication during a catastrophe. This paper focuses on the pre‐emption framework for a Universal Mobile Telecommunications System‐based satellite systems. Three algorithms have been proposed, Greedy, SubSetSum and Fuzzy pre‐emption algorithm. Extensive simulations are carried out for the three algorithms, and their performances are compared against each other. Simulation results show that the Fuzzy pre‐emption algorithm performs better than the other two algorithms. Copyright © 2014 John Wiley & Sons, Ltd.     

多媒体网络化的电视监控系统

多媒体网络化的电视监控系统采 用先进的计算机数字化技术、网络技术、多媒体技术、视音频压缩技术,集监视与保安报警于一体,充分实现了基于计算机局域网和广域通信网的远程实时视音频及控制信息的高度集成与全功能的组合。使数据、报文、图表、视音频等多种信息交互使用,使监控走向更加广阔的范围。不受地理条件的限制,监控变得更省时、省力,准确、客观。多媒体网络化电视监控系统 １．数字视音频编码技术及比较 视音频信号数字化是计算机处理的第一步,如果对一个具有４．３ＭＨｚ带宽的模拟信号直接数字化后,每秒钟的数据量高达２…     

IP/TV VOD网络视讯系统解决方案

分析了IP／TV VoD网络视讯系统的技术(系统结构、工作原理等)、产品特点、功能特点，给出了设计方案及其设备配置选型，结合实际的工程建设对网络进行了运行分析。     

一种基于语音交互应用的全时AI电视系统设计方案

提出一种基于语音交互应用的全时AI电视系统设计方案,详细阐述了系统工作原理及AI语音交互、AI待机交互、线性阵列麦克风模块和防反射收音管道设计关键技术;系统在开机和AI待机状态时均可进行AI语音交互,实现不间断全时语音交互,同时AI待机语音交互功率低,系统语音交互准确性和识别率高.该方案已应用于创维全时AI电视产品,效...     

Multiprocessor system for high-resolution image correlation in realtime

In this work, the correlation-based image localization problem is targeted toward implementation for real-time operation on high-resolution images. The main contribution resides in a global approach to the two-dimensional correlation problem which concurrently considers the algorithm, the system architecture, and its implementation. Analyzing and studying the alternatives concerning algorithm specification, VLSI architecture, and system architecture at different levels of the design phase, a scalable multiprocessor system, based on multiple instances of identical modules, is derived which achieves a real-time image correlation performance exceeding that of currently available solutions by an order of magnitude concerning frame-rate and input image resolution. As a result, the relevance of image correlation traditionally limited to the image processing domain is now expanded into applied machine vision applications. Addressing packaging and reusability aspects, an MCM implementation of the relevant system components is presented     

实用电视监播系统

1 概述广播电视事业迅猛发展，电视节目播出质量不断提高，各电视台都在想方设法降低电视信号的停播率。电视信号停播主要由以下几方面因素造成：（1）节目源方面，如节目磁带中间断信号、磁带卡片记录时间与实际信号长度不符、转送信号（如现场直播）中断等；（2）播出及传送系统方面，如设备损坏，切换台、矩阵误动作等；（3）人为因素， 如播出值班员未装磁带，人为误操作等。解决电视信号停播问题，必须加强交播磁带管理制度，抓好播出、传送系统的设备维护，提高值班员素质。然而仍然有许多未知因素造成电视信号停播，所以说加强电视信…     

A rejection system for interference in TV reception caused bysporadic-E ionospheric propagation

A method to cancel interference waves by extracting them from TV signals through quadrature synchronous detection and then transforming the signals with a Hilbert transform method is introduced. The system eliminates interference waves at any frequency within the TV signal band. It is easily applied to rebroadcast stations, since it is possible to cancel interference waves at the intermediate-frequency stage. The system automatically eliminates a maximum of five interference waves. It suppresses interference waves by more than 40 dB at a desired-to-undesired signal ratio of 10 dB. The system will greatly contribute to eliminating abnormal interference waves caused by the sporadic-E layer as well as other undesired interference with TV signals     

Development of a stage-scanning system for high-resolution confocal STEM

A stage-scanning system is composed of a specially designed transmission electron microscopy specimen holder equipped with a piezo-driven specimen stage, power supplier and control software. This system enables the specimen to be scanned three-dimensionally, and therefore confocal scanning transmission electron microscopy (STEM) can be performed with a fixed electron-optics configuration. It is demonstrated that stage-scanning confocal STEM images can be obtained with the lateral atomic resolution and the specimen can be moved three-dimensionally with high precision.     

Integrated TV tuning system

This paper presents a frequency synthesized digital tuning system for UHF/VHF TV receivers and the integrated circuits developed to implement this scheme. The design and performance of the GHz/spl divide/248/256 programmable prescaler is described in detail.     

A flat-panel TV display system in monochrome and color

We have developed two compact flat TV sets and a full-color prototype model, using thin matrix dc gas-discharge panels of novel structure. The display panel is ¼ in thick, has a 7-in diagonal picture size, and contains 60 000 elements. The monochrome version has a peak luminance of 25 fL, a contrast ratio of 40:1, and 32 digitized gray levels, while the full-color set has a luminance of 5 fL, a 20:1 contrast ratio, and 48 levels. Luminance control is performed by varying the magnitude as well as the duration of the display current. All signals are digitized and all circuits consist of TTL IC's, with the exception of the drive transistors. We have constructed two types of experimental monochrome model sets: one for desk-top use packaged in a 300 × 350 × 80 mm housing which includes tuner, A/D converter, and all TV circuits with the exception of a power supply, the other for wall hanging. A full-color flat display panel has also been developed using a similar panel structure and circuitry.     

含有时滞的电视信号复原系统

从含有时滞的电视信号中提出原信号的复原算法,并设计了一个多功能、高速度的复原系统,实现无重影电视信号的接收。     

全无线电视监控系统设计方案

介绍了一种监视点可移动、机动性很强、视频信号和控制信号都是无线传输的电视监控系统的设计方案。对该方案从系统组成、系统功能、工程原理、软件设计等多方面进行了系统阐述。     

A pulse position modulation transmission system for remote control of a TV set

A transmitter-receiver combination for remote control of a color TV set is described. The transmitter is a 1.6/spl times/1.9 mm/SUP 2/ chip in linear bipolar technology. It generates a 5-bit PPM code for transmission of 32 commands, requires only 5 external components and an 8/spl times/4 single-pole single-throw keyboard. Standby power is zero. The receiver is a 3.1/spl times/3.5 mm/SUP 2/ p-MOS chip and allows for a 20-channel selection. It has 3 D/A converters on chip to generate the analog control signals. It also controls the TV receivers AFC and on-screen display.