Subjective and objective quality assessment of omnidirectional video

Francisco Lopes; João Ascenso; António Rodrigues; Maria Paula Queluz

doi:10.1117/12.2321679

17 September 2018 Subjective and objective quality assessment of omnidirectional video

Francisco Lopes, João Ascenso, António Rodrigues, Maria Paula Queluz

Proceedings Volume 10752, Applications of Digital Image Processing XLI; 107520P (2018) https://doi.org/10.1117/12.2321679
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Omnidirectional video, also known as 360° video, is becoming quite popularsince it provides a more immersive and natural representation of the real world. However, to fulfill the expectation of an high quality-of-experience (QoE), the video content delivered to the end users must also have high quality. To automatically evaluate the video quality, objective quality assessment metrics are then required. This paper starts by presenting the results of a subjective assessment campaign that was conducted to evaluate the impact, on quality, of HEVC compression and/or spatial/temporal subsampling, when the videos are displayed in a head mounted device (HDM). The subjective assessment results are then used as ground-truth to evaluate conventional quality assessment metrics developed for 2D video, as well as some of the recently proposed metrics for omnidirectional video, namely, spherical peak-signal to noise ratio (S-PSNR), weighted to spherically uniform PSNR (WS-PSNR), and viewport PSNR (VP-PSNR); in the context of this study, the adaptation of two SSIM based metrics, to omnidirectional contents, are also proposed and evaluated.

Conference Presentation

Citation Download Citation

Francisco Lopes, João Ascenso, António Rodrigues, and Maria Paula Queluz "Subjective and objective quality assessment of omnidirectional video", Proc. SPIE 10752, Applications of Digital Image Processing XLI, 107520P (17 September 2018); https://doi.org/10.1117/12.2321679

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