Abstract
Video Quality Assessment (VQA) is an integral part of any video coding processes. The Versatile Video Coding (VVC) applies Peak Signal-To-Noise (PSNR) spherical objective quality metrics in the VQA of 360° videos. However, these metrics fail to display compatibility to be integrated with the rectilinear functionalities of VVC. In response, this paper proposes Weighted Craster Parabolic Projection Peak Signal-to Noise Ratio (WCPPPSNR), a novel spherical objective quality metric for 360° video that improves the existing CPPPSNR by providing rectilinear functionalities to support VVC. The subjective experiments conducted, validate the proposed metric to be a good candidate for VQA of 360° video while the use case test reports that the integration of the proposed metric with VVC can improve the coding efficiency up to 2.43% with reference to the anchor implementation of VVC Test Model (VTM) 2.2.
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