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Abstract
Nowadays, most content creators focus on distributing rich media at the highest possible resolution. Currently, the majority of sold consoles, media players, computer hardware, as well as displays and TVs are advertised as 4K-compatible. The same trend is observed in the case of popular online streaming services and terrestrial TV broadcasts. Generally speaking, it is assumed that higher bitrates provide higher subjective judgements. In this paper, we present the results of a user experience (UX) evaluation study on the quality of video content coded and transmitted in different resolutions in the internet protocol (IP) environment. The image resolutions include 1K (1920×1080 pixels; full-HD), 2K (2560×1440 pixels; wide-QHD), and 4K (3840×2160 pixels; ultra-HD) content that are processed in the H.265/HEVC (high-efficiency video coding) format. A subjective evaluation is carried out in a laboratory consisting of 20 iMacs with a 21.5-inch 4K Retina (4096×2304 pixels) display. The group of viewers included 28 individuals aged between 21‒35 years old, comprising people with and without visual impairments. The obtained UX results are compared with previous experiments, including both objective quality of service (QoS) and subjective quality of experience (QoE), as well as the impact of down-scaling to 1K from 2K and 4K. The outcomes of this study may be of particular interest to any party interested in video content processing and distribution, as well as consumption and storage.
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Authors (3)
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Tadeus Uhl
-
Christian Hoppe
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.17402/595
- License
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Zeszyty Naukowe Akademii Morskiej w Szczecinie
no. 149,
pages 38 - 46,
ISSN: 1733-8670 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Falkowski-Gilski P., Uhl T., Hoppe C.: User experience evaluation study on the quality of 1K, 2K, and 4K H.265/HEVC video content// Zeszyty Naukowe Akademii Morskiej w Szczecinie -Vol. 149,iss. 77 (2024), s.38-46
- DOI:
- Digital Object Identifier (open in new tab) 10.17402/595
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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