Scene based Non-uniformity Correction for Optical Remote Sensing Imagery

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Author(s)

Lolith Gopan 1,* E.Venkateswarlu 2 Thara Nair 2 G.P.Swamy 2 B. Gopala Krishna 2

1. Department of Computer Science and Engineering, Amrita School of Engineering, Amrita University, Coimbatore, India.

2. National Remote Sensing Center, ISRO, Hyderabad, India.

* Corresponding author.

DOI: https://doi.org/10.5815/ijigsp.2017.12.06

Received: 16 Jun. 2017 / Revised: 30 Jun. 2017 / Accepted: 13 Jul. 2017 / Published: 8 Dec. 2017

Index Terms

Non-uniformity Correction, gain, bias, mean ratio, median ratio, entropy, radiometric quality

Abstract

In this work, we propose and evaluate different scene based methods for non-uniformity corrections for optical remote sensing data sets. These methods can be used to correct or refine the existing radiometric calibrations, thereby improving the image quality. The performance of each algorithm against different datasets are analyzed and a quantitative comparison of different quality parameters viz. entropy, correlation coefficient, signal to noise ratio, peak signal to noise ratio and structural similarity index are carried out to recommend the best method for each scene.  For a given data set, the selected method depends on the severity, type of terrain it covered, etc.

Cite This Paper

Lolith Gopan, E.Venkateswarlu, Thara Nair, G.P.Swamy, B.Gopala Krishna," Scene based Non-uniformity Correction for Optical Remote Sensing Imagery", International Journal of Image, Graphics and Signal Processing(IJIGSP), Vol.9, No.12, pp. 50-57, 2017. DOI: 10.5815/ijigsp.2017.12.06

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