voice chatting and video conferencing ppt

Tài liệu Voice and Video Conferencing Fundamentals pdf

... of conferencing and collaboration systems has become more complex. Voice and Video Conferencing Fundamentals provides a comprehensive view of audio and video conferencing concepts, and ... Title: Voice and videoconferencing fundamentals. HF5734.7.F57 2007 006.7 dc20 2007003879 Warning and Disclaimer This book is designed to provide information about voice and video conferencing. ... topics:■Conference types■ Voice and video conferencing components■ Voice conferencing modes■Types of endpoints■ Video controls: far-end camera control■Text overlay Components of a Conferencing System...

Video conferencing ppt

Danh mục: Hóa học - Dầu khí

Tài liệu Taking Care of Your Speaking Voice:"Tips and Exercises for Teachers " ppt

Danh mục: Kỹ năng nói tiếng Anh

... voice fast and slow o force - voice loud and soft Resources: The Storyteller's Voice- Care Toolkit by Doug Lipman, Voice Power: Using Your Voice to Captivate, Persuade, and Command Attention ... slowly and with control and support. 3. Vocal exercises ã Strengthen your voice and improve your vocal inflection and resonance. ã Monotone and coarse voices cause stress to larynx and vocal ... hidden power of your voice by Susan Berkley Speaking Clearly: Improving Voice and Diction by Jeffrey C. Hahner The Complete Voice and Speech Workout : 75 Exercises for Classroom and Studio Use by...

Tài liệu Macromedia Flash MX 2004 and Video ppt

Danh mục: Thiết kế - Đồ họa - Flash

... Macromedia Flash and Flash Video 1 Technical Overview of Video Standards 2 Video Standards—NTSC and PAL 2 Interlaced and Progressive Video 5 Introducing the Macromedia Flash MX 2004 Video Platform ... Overview of Video Standards Many people creating Flash Video projects files have a background in web design and desktop publishing, and might not have the technical understanding of video necessary ... quality for their video projects. This section explains the basic concepts and usage of video parameters and standards. If you are already familiar with these standards and the terminology,...

Tài liệu Voice and Video Enabled IPSec VPN (V3PN) Solution Reference Network Design docx

Danh mục: Quản trị mạng

... between Cisco and any other company. (0612R) Voice and Video Enabled IPSec VPN (V3PN) Solution Reference Network Deisgnâ 2007 Cisco Systems, Inc. All rights reserved. 4-10 Voice and Video Enabled ... DifferentiationV3PN provides the ability to encrypt voice and video, which is a new security feature that can be offered relative to traditional TDM networks. xi Voice and Video Enabled IPSec VPN (V3PN) SRND956529V3PN ... would be required to cause audible errors. Contentsviii Voice and Video Enabled IPSec VPN (V3PN) SRND956529 x Voice and Video Enabled IPSec VPN (V3PN) SRND956529V3PN Solution Reference...

Tài liệu IP Video Security Guide: Global Leaders in Video and Security Systems pptx

Danh mục: An ninh - Bảo mật

... today’s video security industry. H.263 - although this standard is considered primarily as a legacy design, this standard is a low bit-rate format originally designed for video conferencing and ... Detection, Window Blanking and more. Network Video Recording and Management – You’ve captured the video. Now what? While many manufacturers focus solely on the camera, Pelco understands that security ... powerful network video recording and management backbones to properly process, archive, record, access, and share the critical video you are capturing. Whether the enterprise-class Endura Video System,...

Tài liệu HOW INTERNET PROTOCOL-ENABLED SERVICES ARE CHANGING THE FACE OF COMMUNICATIONS: A LOOK AT VIDEO AND DATA SERVICES ppt

Danh mục: Quản trị mạng

... choice and competition in the video market.The era of broadband video has arrived. Verizon is eager to de-liver it to our customers. We are also excited by the opportunitieswith software and ... Video and Data Services.’’ Video and data are the second and third legs of the three-leggedIP-enabled stool. Recently, we examined Voice over IP, which is theother leg. And as we modernize our ... determining from whom orwhere to purchase voice, data, and video services.VoIP calls for a cable provider, video services through a phonecompany, and data services through a satellite provider...

Tài liệu RATE-DISTORTION ANALYSIS AND TRAFFIC MODELING OF SCALABLE VIDEO CODERS ppt

Danh mục: Tài chính - Ngân hàng

... scalable video coding techniques and address their impact on the transmission of video overthe Internet.A. Video Compression StandardsThe ﬁrst international digital video coding standard is ... considered.D. Scalable Video CodingIn an ideal video streaming system, the available network bandwidth is stable, theencoder optimally compresses the raw video at a given bandwidth, and the decoderis ... coding, and median motion vector prediction.Unlike MPEG-1/2, H.261/263 are designed for video telephony and only include video coding (no audio coding or systems multiplex). In addition, these standards...

Add Audio and Video to Your Site: The Mini Missing Manual pptx

Danh mục: Quản trị Web

... site loaded withsound and motion. That’s understandable: You, too, wantto trick out your pages with audio and video. But beforeyou can jazz up your site, you need to understand a fewbasics.Linking, ... Your Videos to YouTube”,below. You’ll also find out where you can download freemultimedia files to get you started, and learn how toprepare homegrown videos for quick, seamless playback. And ... Mahler symphony.Handling this data without trying your visitors’ patienceis a true test. In the following sections, you’ll learn howto prepare your video content for the Web, and considertwo...

Still Image and Video Compression with MATLAB pptx

Danh mục: Cơ sở dữ liệu

... processes of compressing and transmitting or storing a video source to a destination in Figure 1.1. The source of raw video may come from a video camera or from a previously stored video data. The source ... chromacomponents are lowpass ﬁltered and subsampled. In digital encoding of color video, the components used are Y, Cb, and Cr. The chroma components Cb and Cr are low-pass ﬁltered and subsampled. This gives ... vehicles, and so in Chapter 3, we willdeﬁne the unitary transforms and discuss their properties. We will then describe im-age transforms such as KLT and DCT and illustrate their merits and demerits...

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báo cáo hóa học: " A pilot study on pupillary and cardiovascular changes induced by stereoscopic video movies" pptx

Danh mục: Hóa học - Dầu khí

... rate of 1 kHz with 12 bit resolution. Data in the resttime before and after video presentation (5 min each), and those during video presentation (5 min) were ana-lyzed. Heart rate (min-1) was ... band-passfilter with the bandwidth between 0.08 Hz and 0.12 Hz toextract Mayer wave components. At time t, Hanning win-dow whose interval is [t-60, t+60] in second is used to seg-ment BP and ... consecutive three days (day 1, day 2 and day 3) during video presentation of the movie D is shown respectively. The mean and SE of ρmax obtained in the rest before and after presentation of the movies...

báo cáo hóa học: " A novel simultaneous dynamic range compression and local contrast enhancement algorithm for digital video cameras" pptx

Danh mục: Hóa học - Dầu khí

... ranges from 40 to 80 for the mean ofregional standard deviation and from 100 to 200 for the imagemean.Tsai and Chou EURASIP Journal on Image and Video Processing 2011, 2011:6http://jivp.eurasipjournals.com/content/2011/1/6Page ... two parameters mmin and mmaxset as (a) (mmin, mmax)=(100/255, 150/255), and (b) (mmin, mmax) = (10/255, 250/255).Tsai and Chou EURASIP Journal on Image and Video Processing 2011, ... contrastpreservation) and Sigma 16, the proposed method with a = -1 (local contrast enhancement) and (g) Sigma 4, (h) Sigma 8, (i) Sigma 16.Tsai and Chou EURASIP Journal on Image and Video Processing...

Báo cáo hóa học: "Research Article Joint Video Summarization and Transmission Adaptation for Energy-Efﬁcient Wireless Video Streaming" pptx

Danh mục: Hóa học - Dầu khí

... Zhai, A. K. Katsaggelos, and T. N. Pappas, “Energy-eﬃcient video summarization and transmission over a slowfading wireless channel,” in Image and Video Communications and Processing, vol. 5685 ... Cir-cuits and Systems for Video Technology, vol. 11, no. 12, pp. 1221–1236, 2001.[26] G. M. Schuster and A. K. Katsaggelos, Rate-Distortion Based Video Compression, Optimal Video Frame Compression and Object ... infrastructure systems and the emerging convergence of voice, video, and dataservices have been driving various modern multimedia applications, such as video streaming and mobile TV. However,...

Báo cáo hóa học: " Research Article Bandwidth Impacts of Localizing Peer-to-Peer IP Video Trafﬁc in Access and Aggregation Networks" ppt

Danh mục: Hóa học - Dầu khí

... true for TV shows,ﬁrst-run movies, and recently released DVD rentals. TV,movie, and video rental rating statistics were examined, and ademand model of video titles was created by matching ... amount of Internet bandwidth. IP video is now emerging, and for broadcast quality digital video, multiple megabits of data are used per stream.Combine the two, and P2P IP video could overwhelm ... (P2P) traﬃc IP video traﬃc. High-quality IPTV or Internet TV hashigh-bandwidth requirements, and P2P IP video could severely strain broadband networks. A model for the popularity of video titles...