A novel Ray-Space interpolation method based on hierarchical prediction

Ray-Space Interpolation is one of the key technologies in the free viewpoint television system. In this paper, a novel Ray-Space interpolation method based on hierarchical prediction is proposed. Firstly, disparity is estimated and optimized by our proposed bi-direction PDE method, then hierarchical prediction structure is proposed to interpolate the virtual views. Experimental results show that both the performance and the robustness of the proposed algorithm are much higher than the traditional block matching based interpolation (BMI) and the inter-slice correlation based method.