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Progressive band processing of constrained energy minimization for subpixel detection / Chein-I Chang in IEEE Transactions on geoscience and remote sensing, vol 53 n° 3 (March 2015)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 53 n° 3 (March 2015) . - pp 1626 - 1637 Titre : Progressive band processing of constrained energy minimization for subpixel detection Type de document : Article/Communication Auteurs : Chein-I Chang, Auteur ; Robert C. Schultz, Auteur ; Marissa C. Hobbs, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 1626 - 1637 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] analyse infrapixellaire [Termes IGN] bande spectrale [Termes IGN] détection de cible [Termes IGN] matrice [Termes IGN] méthode de réduction d'énergie [Termes IGN] optimisation (mathématiques) Résumé : (Auteur) Constrained energy minimization (CEM) has been widely used for subpixel detection. It takes advantage of inverting the global sample correlation matrix R to suppress background so as to enhance detection of targets of interest. This paper presents a progressive band processing of CEM (PBP-CEM) which can perform CEM for target detection progressively band by band according to band sequential format. In doing so, a new concept, called causal band correlation matrix (CBCM), is introduced to replace the global sample correlation matrix R. It is a global correlation matrix formed by only those bands that were already visited up to the band currently being processed while excluding bands yet to be visited in the future. The proposed PBP-CEM allows CEM to be processed whenever bands are available, without waiting for completing band collection. With such an advantage, CEM has potential in data transmission and communication, specifically in satellite data processing. Numéro de notice : A2015-135 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2014.2346479 Date de publication en ligne : 09/09/2014 En ligne : https://doi.org/10.1109/TGRS.2014.2346479 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75801 [article]

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