Delta QP Allocation for MPEG Immersive Video

One way to experience six degrees of freedom (6DoF) immersive video in virtual reality (VR) based on natural content is by using a moving picture experts group (MPEG) immersive video (MIV). To accomplish outstanding bjøntegaard delta (BD)-rate performance, the MIV coding standard removes the inter-view correlation, detects the residuals, and outputs them into videos called atlases. This paper presents a delta quantization parameter (QP) allocation method that considers the characteristics of each atlas to achieve higher BD-rate gains. The experimental results showed that the proposed delta QP allocation method achieved higher BD-rate gains than the existing experimental configurations of the MIV.