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Spatially varying spectral filtering of signals on the unit sphere

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


This paper presents a general framework for spatially-varying spectral filtering of signals defined on the unit sphere, as an analogy to joint time-frequency filtering. For this purpose, we first map spherical signals from spatial domain into joint spatio-spectral domain, where a spatio-spectral signal transformation or modification is introduced. For mapping spatial signals into joint spatio-spectral domain, we use the spatially localized spherical harmonic transform (SLSHT) from the...[Show more]

CollectionsANU Research Publications
Type: Journal article
Source: IEEE Transactions on Signal Processing
DOI: 10.1109/TSP.2012.2225058


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