BVI-SR: A Study of Subjective Video Quality at Various Spatial Resolutions

About

BVI-SR contains 24 unique video sequences at a range of spatial resolutions up to UHD-1 (3840p). These sequences were used as the basis for a large-scale subjective experiment exploring the relationship between visual quality and spatial resolution when using three distinct spatial adaptation filters (including a CNN-based super-resolution method). The results demonstrate that while spatial resolution has a significant impact on mean opinion scores (MOS), no significant reduction in visual quality between UHD-1 and HD resolutions for the superresolution method is reported. A selection of image quality metrics were benchmarked on the subjective evaluations, and analysis indicates that VIF offers the best performance.

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[DOWNLOAD] subjective data, instructions and related files

[DOWNLOAD] all videos from data.bris (University of Bristol Research Data Storage Facility)

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Citation

@inproceedings{mackin2018study,
  title={A study of subjective video quality at various spatial resolutions},
  author={Mackin, Alex and Afonso, Mariana and Zhang, Fan and Bull, David},
  booktitle={25th IEEE International Conference on Image Processing (ICIP)},
  pages={2830--2834},
  year={2018},
  organization={IEEE}
}[paper]