Video Streaming for Mobile Video Surveillance

Mobile video surveillance represents a new paradigm that encompasses, on the one side, ubiquitous video acquisition and, on the other side, ubiquitous video processing and viewing, addressing both computer-based and human-based surveillance. To this aim, systems must provide efficient video streaming with low latency and low frame skipping, even over limited bandwidth networks. This work presents MoSES (MObile Streaming for vidEo Surveillance), an effective system for mobile video surveillance for both PC and PDA clients; it relies over H.264/AVC video coding and GPRS/EDGE-GPRS network. Adaptive control algorithms are employed to achieve the best tradeoff between low latency and good video fluidity. MoSES provides a good-quality video streaming that is used as input to computer-based video surveillance applications for people segmentation and tracking. In this paper new and general-purpose methodologies for streaming performance evaluation are also proposed and used to compare MoSES with existing solutions in terms of different parameters (latency, image quality, video fluidity, and frame losses), as well as in terms of performance in people segmentation and tracking.      

应用Video for Windows进行视频捕捉的开发

本文介绍了应用Video for windows进行视频捕捉的开发程序。即,在windows操作系统中,使用摄像头或数码相机,通过视频采集卡,使用Video for Windows技术将镜头内容捕捉模拟视频信息转化为数字视频信息到计算机中,并转化为bmp或jpeg文件。     

视频通信差错恢复技术

对当前视频压缩差错恢复和可靠视频解码（Robust video coding）算法进行了较为详细地介绍和讨论,包括：关错检测和重同步、差错纠正、差错掩盖（Concealment）以及基于反馈的差错控制。其中许多技术已被ISOMPEG－4(ver2）和ITU－TH2．63＋标准所采用。     

Reviews

The Reviews department features full reviews of Jon Agar's The Government Machine: A Revolutionary History of the Computer and Andy Hertzfeld’s Revolution in the Valley: The Insanely Great Story of How the Mac was Made.     

Reviews

The Reviews department features book reviews of Mike Hally's Electronic Brains: Stories from the Dawn of the Computer Age; David Leavitt's The Man Who Knew Too Much: Alan Turing and the Invention of the Computer; and Jim Holt's New Yorker article "Code Breaker: The Life and Death of Alan Turing"; Darren Wershler-Henry's The Iron Whim: A Fragmented History of Typewriting; JoAnne Yates' Structuring the Information Age: Life Insurance and Technology in the Twentieth Century; T.F. Peterson's Nightwork: A History of Hacks and Pranks at MIT; and Irene K. Fischer's Geodesy? What's That?.     

Reviews

In this paper, we explore the role of sources of inspiration in interaction design. We identify four strategies for relating sources of inspiration to emerging ideas: selection; adaptation; translation; and combination. As our starting point, we argue that sources of inspiration are a form of knowledge crucial to creativity. Our research is based on empirical findings arising from the use of Inspiration Card Workshops, which are collaborative design events in which domain and technology insight are combined to create design concepts. In addition to the systematically introduced sources of inspiration that form part of the workshop format, a number of spontaneous sources of inspiration emerged during these workshops.