20 November 1986 Low Data-Rate Video Conferencing
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Proceedings Volume 0707, Visual Communications and Image Processing; (1986) https://doi.org/10.1117/12.937250
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States
A feasibility study has been completed on a narrow-band video conferencing system. Gray-scale images are converted to bi-level images and further processed to remove inconsistencies within the mappings. Ordered run-length coding of difference frames is used to update the areas of the image that are most likely to change and to be perceptually important first. Sequences of 15 (128 x 120) bi-level frames/s have been successfully transmitted at rates hard-limited at 19.2 kbits/s.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michele Covell, Michele Covell, Jae Lim, Jae Lim, } "Low Data-Rate Video Conferencing", Proc. SPIE 0707, Visual Communications and Image Processing, (20 November 1986); doi: 10.1117/12.937250; https://doi.org/10.1117/12.937250

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