Bandwidth Reduction For The Transmission Of Sign Language Over Telephone Lines

Mansouria Boubekker

doi:10.1117/12.968956

25 October 1988 Bandwidth Reduction For The Transmission Of Sign Language Over Telephone Lines

Mansouria Boubekker

Proceedings Volume 1001, Visual Communications and Image Processing '88: Third in a Series; (1988) https://doi.org/10.1117/12.968956
Event: Visual Communications and Image Processing III, 1988, Cambridge, MA, United States

Abstract

This paper describes a system for the transmission of American Sign Language (ASL) over standard telephone lines. Video quality digital images require a transmission bandwidth at least 4000 times wider than that allowable by the standard voice telephone network. This study presents compression, segmentation and coding techniques that reduce the information content of visual images while preserving the meaning of the transmitted message. The resulting processed information can be transmitted at digital rates within the range of the commercially available 9600 baud modems. The simulated real-time animations of the decoded cartoon images used for the experimental data represent ASL and finger spelling with an intelligibility approximating 85%. This result is within the range of the intelligibility provided by speech communication over telephone lines.

Citation Download Citation

Mansouria Boubekker "Bandwidth Reduction For The Transmission Of Sign Language Over Telephone Lines", Proc. SPIE 1001, Visual Communications and Image Processing '88: Third in a Series, (25 October 1988); https://doi.org/10.1117/12.968956

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