New Compression Scheme for Multispectral Images

  • Park, Jeong-Ho (GIS Research Team, Spatial Information Technology Center, ETRI) ;
  • Yun, Young-Bo (GIS Research Team, Spatial Information Technology Center, ETRI) ;
  • Park, Jong-Hyun (GIS Research Team, Spatial Information Technology Center, ETRI)
  • 발행 : 1998.09.01

초록

In this paper, we propose a new method for multispectral image compression that is based on highly correlated relational properly taken from a spatial image and its wavelet transform. The highly active regions, such as edges or contour, in the spatial domain are appeared as significant coefficients in the wavelet transform domain; and the low active regions like background as insignificant. These characteristics play an important role in designing the system. The simulation results have shown us that the proposed method has better performance in terms of the reconstructed image quality and the transmitted bit rakes. Practically, our system can be successfully applied to the application areas that require of progressive transmission. For some multispectral images with relatively low activity, we have obtained the more good results.

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