A Means for Achieving a High Degree of Compaction on Scan-Digitized Printed Text

A method of video compaction based on transmitting only the first instance of each class of digitized patterns is shown to yield a compaction ratio of 16 on a short passage of text from the IEEE Spectrum. Refinements to extend the bandwidth reduction to 40 by relatively simple means are proposed but not demonstrated. Copyright © 1974 by The Institute of Electrical and Electronics Engineers, Inc.