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Graphics image coding for freeze-frame videoconferencing

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4 Author(s)
Mitchell, J.L. ; IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA ; Pennebaker, W. ; Anastassiou, D. ; Pennington, Keith S.

A technique is presented for coding images that are bilevel in nature but have been captured in continuous-tone format. Following various stages of image processing, a three-level image is generated, and compressed to about 0.1 to 0.2 b/pixel. The technique has been implemented in the IBM freeze-frame videoconferencing system

Published in:

Communications, IEEE Transactions on  (Volume:37 ,  Issue: 5 )