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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...
Digital elevation model (DEM) images present the elevation information of earth's surface in the form of an image in floating point or integer format. While integer type has substantial space saving capabilities, they show stair-case or ladder effect when an image is draped on DEM using 3D visualization software. Due to wide availability of DEM data in integer format, it becomes imperative to develop...
Color or spectral distortion is a serious issue in the field of Image Fusion. The problem is more prevalent in high-resolution satellite imagery due to spectral mismatching of panchromatic and MS bands. Current pixel-based techniques are not well-equipped to handle the problem. Moreover, these techniques do not consider the spatial, spectral or radiometric characteristics of various objects in the...
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