Full-Vector Gradient for Multi-spectral or Multivariate Images - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Transactions on Image Processing Année : 2018

Full-Vector Gradient for Multi-spectral or Multivariate Images

Résumé

Gradient extraction is important for a lot of met-rological applications such as Control Quality by Vision. In this work, we propose a full-vector gradient for multi-spectral sensors. The full-vector gradient extends Di Zenzo expression to take into account the non-orthogonality of the acquisition channels thanks to a Gram matrix. This expression is generic and independent from channel count. Results are provided for a color and a multi-spectral snapshot sensor. Then, we show the accuracy improvement of the gradient calculation by creating a dedicated objective test and from real images.
Fichier principal
Vignette du fichier
Colour_GradientVFinale.pdf (9.69 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02378882 , version 1 (25-11-2019)

Identifiants

Citer

Hermine Chatoux, Noël Richard, François Lecellier, Christine Fernandez-Maloigne. Full-Vector Gradient for Multi-spectral or Multivariate Images. IEEE Transactions on Image Processing, 2018, ⟨10.1109/TIP.2018.2883794⟩. ⟨hal-02378882⟩
70 Consultations
130 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More