Exploitation of the optimality of (non-exact) frames from a sparsedual point of view is presented. sparsedual frames and dualgaborfunctions of the minimal time and/or frequency supports are studied and constructed...
详细信息
Exploitation of the optimality of (non-exact) frames from a sparsedual point of view is presented. sparsedual frames and dualgaborfunctions of the minimal time and/or frequency supports are studied and constructed through the notion of sparse representations. Conditions on the sparsest dual frames and the dualgaborfunctions of the minimal time and/or frequency supports are discussed. Algorithms and examples are provided.
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