Vector Map Data Compression with Wavelets

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 (1.5:1 to 2:1) were obtained with root-mean-square errors less than 0-003 to 0-01 deg longitude/latitude for wavelet packet decompositions using selected wavelets.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2000
Accession Number
ADA495141

Entities

People

  • Juliette W. Ioup
  • Marlin L. Gendron
  • Maura Connor Lohrenz

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Amplitude
  • Change Detection
  • Coding
  • Compression
  • Computer Programming
  • Data Compression
  • Data Sets
  • Latitude
  • Longitude
  • Military Research
  • New York
  • Signal Processing
  • Space Systems
  • Test Sets
  • Transmitters
  • United States
  • Wavelet Transforms

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Computer Vision.