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A core issue that confronts peer-to-peer streaming media application is to efficiently schedule the propagation of data segment. This paper presents a peer-to-peer scheme based on principal-agent model (PAM) that some peers play the role of agent, to gather the information of principal peers in its local physical network, which can be used to optimizing of data scheduling. We designs and implements...
In recent years, microwave induced thermo-acoustic tomography (MITAT) has been of significant interest as a non-invasive medical imaging modality for biomedical applications. In virtue of the combination of microwave and acoustics imaging technique, it bears predominant advantages in both contrast and resolution. In this paper, three-dimensional MITAT imaging reconstruction using Time Reversal Mirror...
This paper describes a series of projects that explore a set of dynamic media applications built upon a potentially invasive sensor system - the Ubiquitous Media Portal, featuring high-resolution video and audio capture with user ID/tracking capabilities that we installed throughout our facility. In addition to sensors, the portals provide a display and loudspeaker to locally display information or...
Most visions of ubiquitous computing anticipate a world permeated by a dense sampling of sensors, many of which will be capable of capturing, analyzing, and transmitting personally relevant and potentially privacy-sensitive media, such as video, audio, and identification information. This paper describes a set of sensor platforms that we have designed to experiment with personalization, interaction,...
Looks at how MIT Media Lab's Responsive Environments Group is exploring ways to bridge networked electronic sensors and human perception through "cross reality" implementations that render and manifest phenomena between real world and virtual environments via densely embedded sensor and actuator networks.
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