Virtual view synthesis using joint information from multi-view.

Immersive media has attracted widespread attention with the development of virtual reality. Three Degree of Freedom Plus media greatly enhances the user experience by allowing users' head motion and viewpoint switching within a certain range. Due to the limitation of panoramic video acquisition and transmission, it is impossible to obtain videos from any viewpoint directly. Virtual view synthesis is the general solution to this problem. However, existing algorithms do not adequately consider the pixel correlation between multiple views. Thus, we propose a virtual view synthesis algorithm using joint information from multi-view panoramic videos to further explore the pixel correlation. Specifically, sub-pixels from different reference views in the virtual view are obtained by performing multi-view three-dimensional image warping. Dedicated area division and interpolation methods are then designed to improve the synthesized quality. Experimental results show that the proposed algorithm outperforms the state-of-the-art virtual view synthesis algorithms in performance and efficiency.