Accession Number:

ADA326904

Title:

A Survey of Image Compression Techniques and their Performance in Noisy Environments.

Descriptive Note:

Final rept. May 96-Jan 97,

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• Marvel, Lisa M.
• Hartwig, George W., Jr

Report Date:

1997-06-01

Pagination or Media Count:

98.0

Abstract:

In the effort to digitize the battlefield, one of the most difficult capabilities to provide is the reliable transmission of imagery across the data links available. The most severe obstacles occur at low echelons, where the communication link is provided by combat net radios. The low-bandwidth, noisy nature of this physical channel represents the most serious challenge to implementation of the digital battlefield of the future. These channels make the compression of any imagery a requirement for timely transmission. In this paper, we explore the effects of noise on a variety of image compression techniques - namely, fractal, wavelet, DPCM, and the most recent compression standard for still imagery, JPEG version 6. Methods for minimizing the effects of the noisy channel on algorithm performance are also considered.

Descriptors:

• *IMAGE PROCESSING
• *SIGNAL TO NOISE RATIO
• *DATA COMPRESSION
• ALGORITHMS
• INFORMATION EXCHANGE
• REAL TIME
• BATTLEFIELDS
• COMMUNICATIONS NETWORKS
• DIFFERENTIAL PULSE CODE MODULATION
• DATA LINKS
• PIXELS
• DIGITAL MAPS
• TRANSMITTER RECEIVERS
• NARROWBAND
• WAVELET TRANSFORMS

Subject Categories:

• Cybernetics
• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE