document: The canonical dual frame of a wavelet frame We show that there exist wavelet frames that have nice dual wavelet frames , but for which the canonical dual frame does not consist of wavelets , i.e. , can not be generated by the translates and dilates of a single function
doc_bio_tags: O B I I O O B I O O O O O O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: canonical dual frame wavelet frame
abstractive_keyphrases: gabor frames multiresolution hierarchy compact support