Intrinsic RGB and multispectral images recovery by independent quadratic programming.
Fiche publication
Date publication
janvier 2020
Journal
PeerJ. Computer science
Auteurs
Membres identifiés du Cancéropôle Est :
Pr MARZANI Franck
Tous les auteurs :
Krebs A, Benezeth Y, Marzani F
Lien Pubmed
Résumé
This work introduces a method to estimate reflectance, shading, and specularity from a single image. Reflectance, shading, and specularity are intrinsic images derived from the dichromatic model. Estimation of these intrinsic images has many applications in computer vision such as shape recovery, specularity removal, segmentation, or classification. The proposed method allows for recovering the dichromatic model parameters thanks to two independent quadratic programming steps. Compared to the state of the art in this domain, our approach has the advantage to address a complex inverse problem into two parallelizable optimization steps that are easy to solve and do not require learning. The proposed method is an extension of a previous algorithm that is rewritten to be numerically more stable, has better quantitative and qualitative results, and applies to multispectral images. The proposed method is assessed qualitatively and quantitatively on standard RGB and multispectral datasets.
Mots clés
Color and multispectral image processing, Dichromatic model, Intrinsic images decomposition, Quadratic Programming
Référence
PeerJ Comput Sci. 2020 ;6:e256