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- W2092446438 abstract "RESUMEPour pallier au probleme du volume important des ensembles de donnees hyperspectrales et du taux de transfert eleve requis pour leur transmission, l'Agence spanale canadienne developpe des methodes de compression de donnees hyperspectrales avec perte d'information. Une de ces methodes, basee sur la technique de quantification vectorielle (VQ), a permis d'enregistrer des resultats prometteurs en termes de taux compression et de fidelite de reconstruction. Toutefois, cette technique presente une lacune significative au plan du temps de traitement qu'elle requiert. Cet article presente des strategies pour reduire le temps de traitement et quantifie l'erreur de reconstruction. L'algorithme VQ est constitue de deux etapes principales: la generation du livre de codes (entrainement) et le codage. De ces etapes, la generation du livre de codes est l'etape la plus intensive en terme de temps machine. Les besoins en temps de traitement pour cette etape peuvent etre reduit en sous-echantillonnant l'ensemble d'..." @default.
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- W2092446438 date "1998-06-01" @default.
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- W2092446438 title "Efficient Hyperspectral Data Compression Using Vector Quantization and Scene Segmentation" @default.
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- W2092446438 doi "https://doi.org/10.1080/07038992.1998.10855233" @default.
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