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Pan Sharpening for Hyper Spectral Imagery Using Spectral Mixing-Based Color Preservation Model

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Abstract

With nanometric spectral resolution and number of bands as high as 220, Hyper spectral sensors like Hyperion and AVIRIS are gaining wide appreciation. Narrow, continuous wavelength of bands upon a vast spectrum of electromagnetic wavelength enables better precision in identification of materials by distinguishing between their unique spectral signatures. However, their poor spatial resolution is a major impediment in realising the full potential of hyperspectral imaging. Efforts are being made worldwide to improve the spatial resolution of hyperspectral imagery by fusing them with registered panchromatic imagery of higher resolution. However, most of the conventional methods fail to preserve the spectral fidelity of the fused images due to severe color distortion. Here, we propose an efficient paradigm to sharpen hyperspectral imagery with high spatial information content and minimal color distortion using color normalization by Lαβ and intensity image generation using Spectral Mixture Analysis. Quantitative assessment indices have been calculated to prove that our method is superior in terms of minimization of color distortion and maximization of spatial details as compared to other methods.

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Authors and Affiliations

  1. Image Analysis Centre, Defence Electronics Applications Laboratory, Research and Development Organisation, Raipur Road, Dehradun, 248001, India

    Munmun Baisantry

  2. Graphic Era University, Clement Town, Dehradun, 248002, India

    Ayushi Khare

Authors
  1. Munmun Baisantry
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  2. Ayushi Khare
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Correspondence to Munmun Baisantry.

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Baisantry, M., Khare, A. Pan Sharpening for Hyper Spectral Imagery Using Spectral Mixing-Based Color Preservation Model. J Indian Soc Remote Sens 45, 743–748 (2017). https://doi.org/10.1007/s12524-016-0643-9

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  • DOI: https://doi.org/10.1007/s12524-016-0643-9

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