Accession Number:

AD0689859

Title:

A SURVEY OF PICTORIAL DATA-COMPRESSION TECHNIQUES

Descriptive Note:

Technical rept.

Corporate Author:

MICHIGAN UNIV ANN ARBOR

Personal Author(s):

• DiGiuseppe, Jack

Report Date:

1969-03-01

Pagination or Media Count:

64.0

Abstract:

The results of a survey of pictorial data-compression techniques are summarized in this report. The survey was motivated by a study of half-time graphics communication over voice grade lines. The principal compression techniques surveyed include the following the optimization of the parameters of ordinary pulse coded modulation, pulse coded modulation using added pseudo- random noise, differential pulse coded modulation, predictive differential pulse coded modulation, run-length encoding, brightness edge detection and the use of synthetic highs, brightness contour detection and encoding, area encoding, picture compression in the Fourier domain.

Descriptors:

• *DATA TRANSMISSION SYSTEMS
• *INFORMATION RETRIEVAL
• SCANNING
• DATA STORAGE SYSTEMS
• PULSE CODE MODULATION
• DIGITAL RECORDING SYSTEMS
• GRAPHICS
• CODING

Subject Categories:

• Computer Hardware
• Cybernetics
• Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE