Median Filtering of Speckle Noise.

reportActive / Technical Report | Accession Number: ADA119964 | Open PDF

Abstract:

A digital model was developed which simulates the physical process of speckle noise generation in coherent imagery. This was used to determine the effectiveness of two-dimensional digital filters for the reduction of speckle noise. Median filters, ranked order filters, and separable combinations of these were evaluated and found to yield good improvement in image signal-to-noise ratios. Author

Author(s):
Gallagher, N. C. ; Sweeney, D. W. ; Christensen, C. R.
Author Organization(s):
ARMY MISSILE COMMAND REDSTONE ARSENAL AL RESEARCH DIRECTORATE
Descriptive Note:
Technical rept.,
Pagination:
0023

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DRSMI/RR-82-6-TR, SBI-AD-E950 297
Monitor Series:
AD-E950 297
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.4.5_Intuit; JCA_5.4_Decide; JCA_5.2_Understand; JCA_5.5_Direct; JCA_1_Force Support; JCA_5.5.1_Communicate Intent and Guidance; JCA_1.2_Force Preparation; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_2_Battlespace Awareness; JCA_2.2.2_Imagery Collection; JCA_2.2_Collection; JCA_1.2.3_Educating
Modernization Areas:
Space
Communities of Interest:
Weapons Technologies
Descriptor(s):
*Digital filters, *Signal processing, *Noise reduction, *Image processing, Signal to noise ratio, Noise, Two dimensional, Images, Coherent radiation, One dimensional, Nonlinear analysis, Digital simulation, Infrared images, Microwaves, Microwave filters, Filters, Sampling
Field(s)/Group(s):
Electrical and Electronic Equipment, Test Facilities, Equipment and Methods, Infrared Detection and Detectors
Keyword(s):
Speckle noise, Filtering theory, Speckle patterns, Median filtering
Report Date:
1982 Feb 08