Progressive compression of digital elevation data using meshes
Author
Köse, Kıvanç
Yılmaz, E.
Çetin, A. Enis
Date
2009-07Source Title
International Geoscience and Remote Sensing Symposium, IGARSS 2009
Publisher
IEEE
Pages
IV502 - IV505
Language
English
Type
Conference PaperItem Usage Stats
166
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133
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Abstract
In this paper a new Digital Elevation Map (DEM) image compression algorithm is proposed. DEM image can be threated as a grayscale image, whose pixel values are the elevation values of the map points. The grayscale DEM image is compressed using an adaptive wavelet based image compression algorithm. The method, which is an extension of the progressive mesh compression takes advantage of the multiresolution property of the wavelets while coding the map images. This makes it possible to decode different resolutions of the map from the encoded bit stream providing a multiresolution display of a given map. Experimental results are presented. ©2009 IEEE.
Keywords
Adaptive waveletsBit stream
Digital elevation data
Digital elevation map
Gray scale
Gray-scale images
Image compression algorithms
Map image
Multiresolution display
Multiresolution property
Pixel values
Progressive compression
Progressive Mesh
Digital image storage
Geology
Image coding
Image compression
Remote sensing
Wavelet analysis
Surveying