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We describe MutualCast, a serverless peer-to-peer (P2P) multiparty real-time audio conferencing system. In MutualCast, the peers form a fully connected clique. During the conferencing session, each peer takes turn to mix and redeliver the compressed audio. The audios are split into frames, and the number of frames mixed and redelivered by a certain peer is proportional to the available resource of...
In panorama images captured by omni-directional cameras during video conferencing, the image sizes of the people around the conference table are not uniform due to the varying distances to the camera. Spatially-varying-uniform (SVU) scaling functions have been proposed to warp a panorama image smoothly such that the participants have similar sizes on the image. To generate the SVU function, one needs...
Media streaming over the best-effort public Internet has been a focus of research for over a decade. Enterprise or corporate streaming is another area of media streaming that is practically very important and has a different set of challenges and feasible solutions. For example, the quality and reliability requirements for enterprise streaming are much stricter than for typical Internet streaming...
A common problem with teleconferences is awkward turn-taking-particularly 'collisions,' whereby multiple parties inadvertently speak over each other due to communication delays. We propose a model for teleconference discussions including the effects of delays, and describe tools that can improve the quality of those interactions. We describe an interface to gently provide latency awareness, and to...
The lack of eye contact in video conference degrades the user's experience. This problem has been known and studied for many years. There are hardware-based solutions to the eye gazing problem. However, these specialized systems are not generally accessible. This paper suggests a software approach that rectifies the face and the eyes in video conference, only utilizing one camera. In the setup phase,...
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