http://www.cnr.it/ontology/cnr/individuo/prodotto/ID186527
Multiresolution adaptive filtering of signal-dependent noise based on a generalized Laplacian pyramid (Contributo in atti di convegno)
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- Multiresolution adaptive filtering of signal-dependent noise based on a generalized Laplacian pyramid (Contributo in atti di convegno) (literal)
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- 1997-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1109/ICIP.1997.647786 (literal)
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Bruno Aiazzi; Stefano Baronti; Luciano Alparone (1997)
Multiresolution adaptive filtering of signal-dependent noise based on a generalized Laplacian pyramid
in IEEE ICIP-97, 1997 IEEE International Conference on Image Processing, Santa Barbara, CA, USA, 26-29 Ottobre 1997
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- Bruno Aiazzi; Stefano Baronti; Luciano Alparone (literal)
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- http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=647786 (literal)
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- Proceedings of ICIP-97: 1997 IEEE International Conference on Image Processing (literal)
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- \"Nello Carrara\" Research Institute on Electromagnetic Waves, IROE - CNR, Via Panciatichi, 64, 50127 Florence, Italy
\"Nello Carrara\" Research Institute on Electromagnetic Waves, IROE - CNR, Via Panciatichi, 64, 50127 Florence, Italy
Department of Electronic Engineering, University of Florence, Via S. Marta, 3, 50139 Firenze, Italy (literal)
- Titolo
- Multiresolution adaptive filtering of signal-dependent noise based on a generalized Laplacian pyramid (literal)
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- Abstract
- Signal-dependent noise may be described by a unique parametric model yielding additive, multiplicative, and film-grain noise. For such a model, adaptive filtering can be written as LLMMSE filtering. Multiresolution processing is exploited to achieve adaptivity also across scale, as SNR increases with the scale of the decomposition, in natural images. A Generalized Laplacian pyramid (GLP) is designed to match the signal-dependent nature of noise, thus allowing LLMMSE filtering to be carried out on its layers. Results from images affected by several types of synthetic noise are pretty superior to those achieved without multiresolution context, by 1 to 2 dB, on an average. (literal)
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