Vector Map Data Compression with Wavelets

reportActive / Technical Report | Accession Number: ADA495141 | Open PDF

Abstract:

Wavelets and wavelet transforms can be used for vector-map data compression. The choice of wavelet, the level of decomposition, the method of thresholding, the height of the threshold, relative CPU times and file sizes, and reconstructed map appearance were investigated using the Wavelet Toolbox of MATLAB. Quantitative error measures were obtained. For two test vector-map data sets consisting of longitude and latitude points, compressions of 35 to 50 percent 1.51 to 21 were obtained with root-mean-square errors less than 0-003 to 0-01 deg longitudelatitude for wavelet packet decompositions using selected wavelets.

Author(s):
Ioup, Juliette W. ; Gendron, Marlin L. ; Lohrenz, Maura C.
Author Organization(s):
NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
Descriptive Note:
Journal article
Supplementary Note:
Pub. in Journal of Navigation, v53 n3 p437-449, Sept. 2000. Presented at Symposium on 'Advanced Moving-Map Displays' held at US Naval Research Laboratory Detachment at the NASA Stennis Space Center, Mississippi on 3rd and 4th of Aug 1999. Prepared in cooperation with University of New Orleans.
Pagination:
0014

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NRL
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_6_Net Centric; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_5_Command and Control; JCA_6.1.3_Switching and Routing; JCA_1.2.3_Educating; JCA_6.1_Information Transport; JCA_8_Building Partnerships
Modernization Areas:
Space
Communities of Interest:
Space
Descriptor(s):
*DATA COMPRESSION, *MAPS, DECOMPOSITION, WAVELET TRANSFORMS, CHARTS, VECTOR ANALYSIS, REPRINTS
Field(s)/Group(s):
Cartography and Aerial Photography, Computer Programming and Software
Report Date:
2000 Sep 01
Creation Date:
2009 Apr 01