Many desktop videoconferencing systems are ineffective due to deficiencies in gaze awareness and sense of spatial relationship. Previous works employ special hardware to address these problems. Here, we describe a software-only approach. Heads and eyes in the video are tracked using computer-vision techniques, and the tracking information is transmitted along with the video stream. Receivers take the tracking information corresponding to the video and graphically place the head and eyes in a virtual 3D space such that gaze awareness and a sense of space are provided.

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