DocumentCode :
1707045
Title :
Quantized high resolution pursuit
Author :
Montufar-Chaveznava, R. ; Garcia-Ugalde, Francisco
Author_Institution :
Inst. de Fisiologia Celular, Univ. Nacional Autonoma de Mexico, Mexico City
fYear :
1998
Firstpage :
189
Lastpage :
192
Abstract :
Because of their properties, adaptive decomposition techniques have been hardly studied in order to apply them to different works, such as signal characterization, compact representation, feature extraction, noise subtraction, etc. High resolution pursuit is one of the techniques developed which principally provides a very good super-resolution without requiring expensive computation, compared with other super-resolution techniques such as basis pursuit. When an adaptive decomposition technique is employed for compact representation, it is necessary to consider the introduction of a quantization stage for better results. V. Goyal (see SPIE vol.3024, p.2-12) presented good result and has also studied quantization in adaptive decomposition techniques, specifically with the matching pursuit. We test quantization with the high resolution pursuit technique in order to analyze some of the results obtained
Keywords :
adaptive signal processing; data compression; iterative methods; quantisation (signal); signal reconstruction; signal representation; signal resolution; adaptive decomposition techniques; compact representation; feature extraction; high resolution pursuit; iterative algorithm; matching pursuit; noise subtraction; quantized high resolution pursuit; reconstructed signal; signal characterization; super-resolution; Atomic measurements; Circuit noise; Dictionaries; Feature extraction; Matching pursuit algorithms; Pursuit algorithms; Quantization; Signal resolution; Testing; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1998. Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-5073-1
Type :
conf
DOI :
10.1109/TFSA.1998.721393
Filename :
721393
Link To Document :
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