Towards a New Quality Metric for 3-D Synthesized View Assessment - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Journal of Selected Topics in Signal Processing Année : 2011

Towards a New Quality Metric for 3-D Synthesized View Assessment

Résumé

3DTV technology has brought out new challenges such as the question of synthesized view evaluation. Synthesized views are generated through a depth image-based rendering (DIBR) process. This process induces new types of artifacts whose impact on visual quality has to be identified considering various contexts of use. While visual quality assessment has been the subject of many studies in the last twenty years, there are still some unanswered questions regarding new technological improvement. DIBR brings new challenges mainly because it deals with geometric distortions. This paper considers the DIBR-based synthesized view evaluation problem. Different experiments have been carried out. They question the protocols of subjective assessment and the reliability of the objective quality metrics in the context of 3DTV, in these specific conditions (DIBR-based synthesized views). They consist in assessing seven different view synthesis algorithms through subjective and objective measurements. Results show that usual metrics are not sufficient for assessing 3-D synthesized views, since they do not correctly render human judgment. Synthesized views contain specific artifacts located around the disoccluded areas, but usual metrics seem to be unable to express the degree of annoyance perceived in the whole image. The study provides hints for a new objective measure. Two approaches are proposed: the first one is based on the analysis of the shifts of the contours of the synthesized view; the second one is based on the computation of a mean SSIM score of the disoccluded areas.
Fichier principal
Vignette du fichier
bosc.pdf (9.41 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00628070 , version 1 (30-09-2011)

Identifiants

  • HAL Id : hal-00628070 , version 1

Citer

Emilie Bosc, Romuald Pépion, Patrick Le Callet, Martin Köppel, Patrick Ndjiki-Nya, et al.. Towards a New Quality Metric for 3-D Synthesized View Assessment. IEEE Journal of Selected Topics in Signal Processing, 2011, pp.J-STSP-ETVC-00048-2011. ⟨hal-00628070⟩
1018 Consultations
449 Téléchargements

Partager

Gmail Facebook X LinkedIn More