Low Data-Rate Video Conferencing

Michele Covell; Jae Lim

doi:10.1117/12.937250

20 November 1986 Low Data-Rate Video Conferencing

Michele Covell, Jae Lim

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

Abstract

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.

Citation Download Citation

Michele Covell and Jae Lim "Low Data-Rate Video Conferencing", Proc. SPIE 0707, Visual Communications and Image Processing, (20 November 1986); https://doi.org/10.1117/12.937250

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available