期刊文献+

基于H.263解压算法和UDP协议的多方视频会议系统 被引量:3

Research and design of VAMS based on H.263 compress method and UDP
下载PDF
导出
摘要 简要概括了视频会议系统的设计原理,重点讲述了视频会议系统的实现过程,从视音频俘获、视音频数据压缩、数据传送、数据接收、数据解压,到音频数据播放、视频数据显示的整个过程。特别是对实现过程中的模拟会议室的创建过程、命令解析、视音频同步、音频数据的混音处理、中间代理服务器转发等做了详细的讲解。并对视频会议系统的发展和应用前景进行了认真的分析。 The design principle of VAMS (video-audio meeting system) is generalized, in special, descript the realize process of VAMS, the whole process comprises VA (video-audio) data capture, VA data encode, data send, data receive, audio data play, video data display. The difficult problem is explained particularly, for instance, the create process of meeting room, command analysis, synchronization of Audio play and Video display, stereo process of audio data, the tranmit of agent server. The development of foreground of VAMS is analyzed.
出处 《计算机工程与设计》 CSCD 北大核心 2007年第7期1578-1580,1600,共4页 Computer Engineering and Design
关键词 视频会议系统 数据压缩 数据解压 H.263 混音处理 VAMS data encode date decode H.263 stereo process
  • 相关文献

参考文献3

二级参考文献14

  • 1Chen C T,Proceedings of the International Picture Coding Symposium.,1994年,83页
  • 2Wiegand T,Sullivan G.H.264 working draft number 2[EB/OL].2002-01-29. http://ftp3.itu.int/av-arch/video-site/h26L/jwd2r2.zip,.
  • 3Hussain Y, Farvardin N. Adaptive block transform coding of speech based on LPC vector quantization[J]. IEEE Trans Signal Processing, 1991, 39(12):2611-2620.
  • 4Chain W K. Development of integer cosine transforms by the principle of dyadic symmetry[J]. IEEE Proc Communications,Speech and Vision, 1989, 136(1):276-282.
  • 5Wien M,DahihoffA,Intra coding using variable block sizes[EB/OL]. 2001-11-26.ftp://standards.pictel.com/video-site/0112-Pat/VCEG-O31.doc.
  • 6Choi W I, Jeon B W. Dynamic UVLC codeword remapping with fixed re-association table for H.26L[A]. Picture coding symposium[C], Seoul, Korea, 2001.167-170.
  • 7Sullivan G. Recommended simulation common conditions for H.26L coding efficiency experiments on low-resolution progressive-scan source material[EB/OL]. 2001-09-27. ftp://standards.pictel, com/video-site/0109-San/VCEG-N81 .doc.
  • 8Bjontegaard G. Calculation of average PSNR differences between RD curves [EB/OL]. 2001-03-26,ftp://standards.pictel.com/video-site/0104-Aus/VCEG-M33.
  • 9Nathen Wallance.中文Windows 98技术内幕[M].北京:机械工业出版社,1999..
  • 10Norton Peter MeGregor Rob.MFC Windows 95/NT应用程序[M].北京:清华大学出版社,1998..

共引文献24

同被引文献12

引证文献3

二级引证文献6

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部