Version [8.0] – [IV-PSNR: Software for immersive video objective quality evaluation]

This paper describes IV-PSNR v8.0, the second major update of the IV-PSNR software package for objective quality assessment in immersive video systems. Similarly to earlier versions, the software provides robust quality estimation adapted for the unique characteristics of immersive video, such as geometric inaccuracies, view-dependent illumination, and typical multiview reconstruction artifacts. The new version introduces three improvements: (1) a new structural-similarity-based immersive quality metric: IV-MS-SSIM; (2) a significant performance optimization of all structural-similarity-based metrics based on substituting the 11 × 11 Gaussian window by an 8 × 8 square window with partial overlapping; (3) multithreading optimization.