Eigen-Space Coding as a Means to Support Privacy in Computer Mediated Communication

摘要

The current solutions to disclosing privacy in computer-mediated communication are two-fold: either the connection is permited and an audio-video link is opened providing a full-blown percpetual view on the distant location, or the connection is denied and the distant visitor has no perceptual access to the remote site. We claim that the disclosure of aprivate data is more complex than these simplistic binary solutions. In this article. we present the concept of published observability as a system property to characterize the disclosure of private data. We propose a technical solution as an instantation of this property using an eigen-space coding for private video data. This technique has been implemented within CoMedi, a mediaspace under development.