Interactive video

Abstract: Educational videos have become an important part of higher education, providing an important content-delivery tool in many flipped, blended, and online classes Effective use of video as an educational tool is enhanced when instructors consider three elements: how to manage cognitive load of the video; how to maximize student engagement with the video; and how to promote active learning from the video This essay reviews literature relevant to each of these principles and suggests practical ways instructors can use these principles when using video as an educational tool

Abstract: An interactive video display system. A display screen is for displaying a visual image for presentation to a user. A camera is for detecting an object in an interactive area located in front of the display screen, the camera operable to capture three-dimensional information about the object. A computer system is for directing the display screen to change the visual image in response to the object.

Abstract: The three presentations in this session discuss work in the forthcoming Polity title YouTube: Online Video and Participatory Culture (2009) by Joshua Green and Jean Burgess. In this timely and comprehensive introduction to how YouTube is being used and why it matters, Burgess and Green discuss the ways that it relates to wider transformations in culture, society and the economy. The book critically examines the public debates surrounding the site, demonstrating how it is central to struggles for authority and control in the new media environment. Drawing on a range of theoretical sources and empirical research, the authors discuss how YouTube is being used by the media industries, by audiences and amateur producers, and by particular communities of interest, and the ways in which these uses challenge existing ideas about cultural 'production' and 'consumption'. Rich with concrete examples and featuring specially commissioned chapters by Henry Jenkins and John Hartley, the book is essential reading for anyone interested in the contemporary and future implications of online media. It will be particularly valuable for students and scholars in media, communication and cultural studies.

Abstract: Method and apparatus for in-band, video broadcasting of commands to interactive devices are described. Control data are encoded by subliminally modulating, prior to the remote, composite video broadcast of video program material, a selected sequence of video image fields. The resulting modulated video fields within the viewing area of a television, each having alternately, proportionately raised and lowered luminance horizontal scan lines, are monitored by a light sensitive device positioned adjacent the user's television screen. A semirigid, twisted pair cable connects the device to nearby receiver/transmitter electronics that discriminate the binary data from the program material and amplitude modulate a high frequency infrared (IR) carrier with the data. Interactive devices, e.g. educational aids or action toys, within range of the wireless IR transmission detect energy in this frequency range, decode the commands embedded in the control data, and selectively execute predetermined actions in response to the data-encoded broadcast. In a proposed modification, low radio frequency (RF) electromagnetic radiation emanating from the television's raster scan electronics is coupled by a conventional RF antenna to the receiver electronics, which identically discriminate the binary data, from the program material, for transmission to the interactive devices.