Hojati, Esmaeil, Franche, Jean-François, Coulombe, Stéphane et Vazquez, Carlos.
2017.
« Highly parallel HEVC motion estimation based on multiple temporal predictors and nested diamond search ».
In 2017 IEEE International Conference on Image Processing (ICIP) (Beijing, China, Sept. 17-20, 2017)
pp. 2746-2750.
Compte des citations dans Scopus : 3.
Prévisualisation |
PDF
Coulombe S 2018 16805.pdf - Version acceptée Licence d'utilisation : Tous les droits réservés aux détenteurs du droit d'auteur. Télécharger (655kB) | Prévisualisation |
Résumé
Rate-constrained motion estimation (RCME) is the most computationally intensive task of H.265/HEVC encoding. Massively parallel architectures, such as graphics processing units (GPUs), used in combination with a multi-core central processing unit (CPU), provide a promising computing platform to achieve fast encoding. However, the dependencies in deriving motion vector predictors (MVPs) prevent the parallelization of prediction units (PUs) processing at a frame level. Moreover, the conditional execution structure of typical fast search algorithms is not suitable for GPUs designed for data-intensive parallel problems. In this paper, we propose a novel highly parallel RCME method based on multiple temporal motion vector (MV) predictors and a new fast nested diamond search (NDS) algorithm well-suited for a GPU. The proposed framework provides fine-grained encoding parallelism. Experimental results show that our approach provides reduced GPU load with better BD-Rate compared to prior full search parallel methods based on a single MV predictor.
Type de document: | Compte rendu de conférence |
---|---|
Professeur: | Professeur Coulombe, Stéphane Vázquez, Carlos |
Affiliation: | Génie logiciel et des technologies de l'information, Génie logiciel et des technologies de l'information |
Date de dépôt: | 04 juill. 2018 12:56 |
Dernière modification: | 13 mai 2024 15:44 |
URI: | https://espace2.etsmtl.ca/id/eprint/16805 |
Actions (Authentification requise)
![]() |
Dernière vérification avant le dépôt |