Nledia space applications that promote informrd aw~eness in an organization confront an inevitable paradox: the shared video connections between offices and rooms that promote informal awareness rdso cm rob individurds of privacy. A important open problem in this area is how to foster awareness of colleagues while minimizing the accompanying 10SSof privacy. One proposrd put forward is to filter the communicated video streams rather than broadcasting clear video. Such a scheme may facilitate awareness while helping to tieviate some aspects of the privacy loss. In tis ardcle, we describe several image filtering twhniques that provide awareness in informrd group communication applications while blurring the details of an individurd's activities, thus potentially preserving more privacy. We describe studies to quantitatively and qurditatively assess tie degrees of awareness and accuracy that these filtering tmtilques provide.
To minimize the accompanying loss of privacy, REF [13] describe several image filtering techniques that fil-ter the communicated video streams rather than broadcasting clear video.
Evaluating image filtering based techniques in media space applications
CSCW '98
Computer Science