Are you still watching? Streaming video quality and engagement assessment in the crowd. - In: 2020 Twelfth International Conference on Quality of Multimedia Experience (Qomex), (2020), insges. 6 S.
https://doi.org/10.1109/QoMEX48832.2020.9123148
Let the music play: an automated test setup for blind subjective evaluation of music playback on mobile devices. - In: 2020 Twelfth International Conference on Quality of Multimedia Experience (Qomex), (2020), insges. 4 S.
https://doi.org/10.1109/QoMEX48832.2020.9123092
Bitstream-based model standard for 4K/UHD: ITU-T P.1204.3 - model details, evaluation, analysis and open source implementation. - In: 2020 Twelfth International Conference on Quality of Multimedia Experience (Qomex), (2020), insges. 6 S.
https://doi.org/10.1109/QoMEX48832.2020.9123110
Prenc - predict number of video encoding passes with machine learning. - In: 2020 Twelfth International Conference on Quality of Multimedia Experience (Qomex), (2020), insges. 6 S.
https://doi.org/10.1109/QoMEX48832.2020.9123108
Development and evaluation of a test setup to investigate distance differences in immersive virtual environments. - In: 2020 Twelfth International Conference on Quality of Multimedia Experience (Qomex), (2020), insges. 4 S.
https://doi.org/10.1109/QoMEX48832.2020.9123077
Comparing fixed and variable segment durations for adaptive video streaming: a holistic analysis. - In: MMSys '20, (2020), S. 38-53
https://doi.org/10.1145/3339825.3391858
SiSiMo: towards simulator sickness modeling for 360˚ videos viewed with an HMD. - In: 2020 IEEE Conference on Virtual Reality and 3D User Interfaces workshops, (2020), S. 582-583
https://doi.org/10.1109/VRW50115.2020.00142
Qualinet databases: central resource for QoE research - history, current status, and plans. - In: ACM SIGMultimedia records, ISSN 1947-4598, Bd. 11 (2019), 3, 5, S. 1
https://doi.org/10.1145/3524460.3524465
Impacts of internal HMD playback processing on subjective quality perception. - In: Electronic imaging, ISSN 2470-1173, Bd. 31 (2019), 12, art00013, S. 219-1-219-6
In this paper, we conducted two different studies. Our first study deals with measuring the flickering in HMDs using a selfdeveloped measurement tool. Therefore, we investigated several combinations of software 360˚ video players and framerates. We found out that only 90 fps - content is leading to a ideal and smooth playout without stuttering or black frame insertion. In addition, it should be avoided to playout 360˚ content at lower framerates, especially 25 and 50 fps. In our second study we investigated the influence of higher framerates of various 360˚ - videos on the perceived quality. Doing so, we conducted a subjective test using 12 expert viewers. The participants watched 30 fps native as well as interpolated 90 fps 360˚ content, whether we also rendered two contents published along with the paper. We found out that 90 fps is significantly - improving the perceived quality. Additionally, we compared the performance of three motion interpolation algorithms. From the results it is visible that motion interpolation can be used in post production to improve the perceived quality.
https://doi.org/10.2352/ISSN.2470-1173.2019.12.HVEI-219
Frequency-domain analysis based exploitation of color channels for color image demosaicking. - In: 2019 IEEE International Conference on Visual Communications and Image Processing (VCIP), (2019), insges. 4 S.
https://doi.org/10.1109/VCIP47243.2019.8966070