Mixed Mode for Group 4 Facsimile Systems.

Abstract

The purpose of this effort is to investigate the more advanced Mixed Mode coding technique which will be one service of Group 4 facsimile. In a mixed mode system the information printed on a page is divided into two parts - symbols (letters, numerals, punctuation, etc.) and graphics (logos, signatures, sketches, etc.). This study examines possible techniques for segmenting a document into graphic and symbol areas, and assemble a code that represents the entire document. Four segmentation techniques were selected for analysis as follows: SYMBOL REMOVAL/SCAN LINE; SYMBOL REMOVAL/LINE OF SYMBOLS; EXTENDED TELETEX; SYMBOL REMOVAL/HYBRID. These techniques were designed to differ from each other as much as possible, so as to display a wide variety of characteristics. For each technique, many minor modifications would be possible, but it is not expected that these modifications would alter the conclusions drawn from the study. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 07, 1983
Accession Number
ADA137592

Entities

People

  • A. Deutermann

Organizations

  • Delta Information Systems (United States)

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Artificial Intelligence
  • Coding
  • Communication Systems
  • Computer Programming
  • Computers
  • Data Compression
  • Department Of Veterans Affairs
  • Directives
  • Facsimile Equipment
  • Graphics
  • Information Systems
  • Plastic Explosives
  • Recognition
  • Standards
  • Text Processing
  • Two Dimensional
  • Word Processors

Fields of Study

  • Computer science

Readers

  • Computational Linguistics
  • Computer Networking
  • Computer Science.