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Pregled bibliografske jedinice broj: 748642

Časopis

Autori: Benner, Peter; Novaković, Vedran; Plaza, Antonio; Quintana- Ortí, Enrique S.; Remón, Alfredo
Naslov: Fast and Reliable Noise Estimation for Hyperspectral Subspace Identification
( Fast and Reliable Noise Estimation for Hyperspectral Subspace Identification )
Izvornik: IEEE geoscience and remote sensing letters (1545-598X) 12 (2015), 6; 1199-1203
Vrsta rada: članak
Ključne riječi: hyperspectral imaging; subspace identification; noise estimation; least square problems; multicore processors
( hyperspectral imaging; subspace identification; noise estimation; least square problems; multicore processors )
Sažetak:
In this letter, we introduce an efficient algorithm to estimate the noise correlation matrix in the initial stage of the hyperspectral signal identification by minimum error (HySime) method, commonly used for signal subspace identification in remotely sensed hyperspectral images. Compared with the current implementations of this stage, the new algorithm for noise estimation relies on the reliable QR factorization, producing correct results even when operating with single- precision arithmetic. Additionally, our algorithm exhibits a lower computational cost, and it is highly parallel. The experiments on a multicore server, using two real hyperspectral scenes, expose that these theoretical advantages carry over to the practical results.
Projekt / tema: 037-1193086-2771
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Matematika,Geologija,Računarstvo
URL Internet adrese: http://dx.doi.org/10.1109/LGRS.2014.2388133
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7038190
Broj citata:
Altmetric:
DOI: 10.1109/LGRS.2014.2388133
URL cjelovitog teksta:
Google Scholar: Fast and Reliable Noise Estimation for Hyperspectral Subspace Identification
Upisao u CROSBI: Vedran Novaković (vedran.novakovic@fsb.hr), 21. Sij. 2015. u 08:22 sati



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