During 1994-96, John was with the Video Communications Group at Monash University. This was supported by GIRD funding and by Siemens, Telstra and the Australian Computer and Communications Institute as industrial partners. He was leader of the Video and Multimedia Conferencing Project, supervising two Research Fellows.
The objective of the project was the development of a desktop videoconferencing terminal that could operate over a LAN, and inter-work with standard (H.320) videoconferencing terminals via a gateway to the ISDN telecommunications network. Both the terminal and the gateway were based on fast PCs running OS/2, with most of the video and audio processing being handled by software, rather than special-purpose hardware used in normal H.320 systems.
The demonstration videoconferencing system displayed reduced-size images of both the sender and recipient. Multiple program threads allowed real-time coding and decoding of both the audio and video streams, as well as the operation of a shared whiteboard.
K.K. Pang, H.G. Lim, S. Dunstan and J.M. Badcock, "Frequency domain decimation and interpolation techniques", 1996 International Picture Coding Symposium, Proceedings pp. 81-86.
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