Friday, September 25, 2009 5:19:40 PM

Pixel based fusion using IKONOS imagery

Uttam Kumar, Chiranjit Mukhopadhyay and T. V. Ramachandra*
Indian Institute of Science, Bangalore, India.
Back Email: uttam@ces.iisc.ernet.in, cm@mgmt.iisc.ernet.in, cestvr@ces.iisc.ernet.in Next

Abstract

Pixel based image fusion entails combining geometric details of a high-resolution Panchromatic (PAN) image and spectral information of a low-resolution Multispectral (MS) image to produce images with highest spatial content while preserving the spectral information. This work reviews and implements six fusion techniques – À Trous algorithm based wavelet transform (ATW), Mulitresolution Analysis based Intensity Modulation, Gram Schmidt fusion, CN Spectral, Luminance Chrominance and High pass fusion (HPF) on IKONOS imagery having 1 m PAN and 4 m MS channels. Comparative performance analysis of techniques by various methods reveals that ATW followed by HPF perform best among all the techniques.

Index Terms— Image merging, multispectral, resolution

Citation:
Uttam Kumar, Chiranjit Mukhopadhyay, T. V. Ramachandra, 2009, Pixel based fusion using IKONOS imagery, International Journal of Recent Trends in Engineering Vol 1, No. 1.		 *Corresponding author:
Centre for Ecological Sciences, Indian Institute of Science, Bangalore – 560012, India. Phone: 91-80-22933099; Fax: 91-80-23600683.