Publications

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

Search for Publication


Year(s) from:  to 
Author:
Keywords (separated by spaces):

Multichannel compression for sequential image retrieval

D. Coltuc, M. Datcu and K. Seidel
Operational Remote Sensing for Sustainable Development, 18th EARSeL Symposium 1998, Enschede, Netherlands
1999

Abstract

The paper presents a compression method for multichannel remote sensing images. The method is basically a DPCM scheme that uses a new stochastic model adapted for sets of correlated images. The model was tested on 2 sets of data having different spectral characteristics: multispectral/multitemporal data (SPOT-XS) and hyperspectral data (AVIRIS). The compression rates are derived from the Rate Distortion function. They are compared, on the same basis, with the compression rates obtained by using the classical AR model for images. The new stochastic model is definitely superior when the image set is spectrally correlated. The compression scheme is given in 2 versions: a random order compression algorithm for data retrieval from image archives and a sequential order compression algorithm for image transmission. Both schemes are developed for lossy versions but they can easily be adapted for lossless compression too.


Download in pdf format
@InProceedings{eth_biwi_00170,
  author = {D. Coltuc and M. Datcu and K. Seidel},
  title = {Multichannel compression for sequential image retrieval},
  booktitle = {Operational Remote Sensing for Sustainable Development, 18th EARSeL Symposium 1998, Enschede, Netherlands},
  year = {1999},
  pages = {345--351},
  editor = {G.J.A. Nieuwenhuis and R.A. Vaughan and M. Molenaar},
  publisher = {A. A. Balkema Rotterdam/Brookfield},
  keywords = {remote sensing, multispectral, multitemporal, compression}
}