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Spatio-spectral Analysis on the Sphere Using Spatially Localized Spherical Harmonics Transform

Khalid, Zubair; Sadeghi, Parastoo; Kennedy, Rodney; Durrani, Salman


This correspondence studies a spatially localized spectral transform for signals on the unit sphere, which we call spatially localized spherical harmonics transform (SLSHT). For a systematic treatment, we explicitly express the transform in terms of rotated versions of an azimuthally symmetric window function and introduce the spatio-spectral SLSHT distribution with a succinct matrix representation. We present guidelines for the choice of the window function in the SLSHT, based on the inherent...[Show more]

CollectionsANU Research Publications
Type: Journal article
Source: IEEE Transactions on Signal Processing
DOI: 10.1109/TSP.2011.2177265


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