A new class of shift-invariant operators


This letter proposes a class of operators with a shift invariance property. These operators are derived from two-dimensional (2-D) complex moment invariants based on the observation that there is a duality between rotation invariance and shift invariance. A general form of the shift invariants belonging to this class is presented, which shows that… (More)
DOI: 10.1109/LSP.2004.827915


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