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Proceedings Paper

Panchromatic band sharpening of multispectral image data to improve machine exploitation accuracy
Author(s): Sylvia S. Shen; John E. Lindgren; Paul Max Payton
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Paper Abstract

Due to bandwidth limitations, many remote sensing systems have strengths in either spatial or spectral resolution, an inevitable tradeoff. It is therefore important to have capabilities to merge data and take advantage of the strengths of each. In this paper, we describe a method for enhancing the spatial resolution of multispectral images using a higher resolution panchromatic image. Our method uses the local correlation between low resolution multispectral and corresponding panchromatic radiances to generate sharpened products. The resultant sharpened multispectral images not only have improved visual interpretability but also preserve radiometric fidelity for accurate machine exploitation. This is substantiated by evaluation of the quality of our band sharpening products in terms of machine exploitation accuracy. Results of a sensitivity analysis of the sharpening algorithm to noise are also presented.

Paper Details

Date Published: 30 June 1994
PDF: 8 pages
Proc. SPIE 2304, Neural and Stochastic Methods in Image and Signal Processing III, (30 June 1994); doi: 10.1117/12.179220
Show Author Affiliations
Sylvia S. Shen, Lockheed Palo Alto Research Lab. (United States)
John E. Lindgren, Lockheed Palo Alto Research Lab. (United States)
Paul Max Payton, Lockheed Palo Alto Research Lab. (United States)

Published in SPIE Proceedings Vol. 2304:
Neural and Stochastic Methods in Image and Signal Processing III
Su-Shing Chen, Editor(s)

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