Title :
Improved view synthesis by motion warping and temporal hole filling
Author :
Purica, Andrei I. ; Mora, Elie G. ; Pesquet-Popescu, Beatrice ; Cagnazzo, Marco ; Ionescu, Bogdan
Author_Institution :
Inst. Mines-Telecom, Telecom ParisTech, Paris, France
Abstract :
View synthesis received increasing attention over the last years, as it offers a wide range of practical applications like Free Viewpoint Television, 3D video, video gaming, etc. The main issues in view synthesis are the filling of disoccluded areas and the warping of real views. In this paper we propose a new hole filling method, it uses temporal correlations in the real views to extract information on disoccluded areas from different time instants in the synthetic view. We also propose a sub-pixel warping technique that takes into account depth and can be used for both the warping of the real view as well as for motion compensation. Our method is proved to bring gains of up to 0.31dB in average over several multiview test sequences.
Keywords :
image sequences; motion compensation; video coding; improved view synthesis; motion compensation; motion warping; multiview test sequences; sub-pixel warping technique; temporal correlations; temporal hole filling method; Filling; IEC standards; ISO; Paints; Video recording; depth-image-based-rendering; hole filling; multiview video; view synthesis;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2015 IEEE International Conference on
Conference_Location :
South Brisbane, QLD
DOI :
10.1109/ICASSP.2015.7178158