Video Quality Metric for Streaming Service Using DASH Standard
| Autor: | Demostenes Zegarra Rodriguez, Graça Bressan, Eduardo Costa Alfaia, Renata Lopes Rosa, Julia Abrahão |
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| Rok vydání: | 2016 |
| Předmět: |
Computer science
020206 networking & telecommunications 02 engineering and technology Video processing Video quality Video compression picture types Dynamic Adaptive Streaming over HTTP Video tracking Dash 0202 electrical engineering electronic engineering information engineering Media Technology 020201 artificial intelligence & image processing Electrical and Electronic Engineering PEVQ Subjective video quality Simulation |
| Zdroj: | IEEE Transactions on Broadcasting. 62:628-639 |
| ISSN: | 1557-9611 0018-9316 |
| DOI: | 10.1109/tbc.2016.2570012 |
| Popis: | Currently, dynamic adaptive streaming over HTTP (DASH) standard is used to change the video resolution according to the network capacity of the end user’s. However, if the video resolution changes frequently, the attention of the users can be affected decreasing their quality-of-experience (QoE). In this context, this paper proposes a no-reference video quality metric that takes three impairment factors into account, initial buffering delay, temporal interruptions or pauses, and video resolution changes during a video transmission. Also, the temporal locations of pauses and resolution changes are considered. In order to perform this task, extensive subjective tests were conducted. Experimental results show that the evaluators’ QoE is highly correlated with the frequency of pauses, video resolution changes and initial delay. Based on these results a video streaming quality metric for DASH services (VsQM $_{\text {DASH}}$ ) is formulated and implemented on PC and mobile hand-held devices. Finally, the performance of VsQM $_{\text {DASH}}$ is validated with additional subjective tests reaching a person correlation coefficient of 0.99. Furthermore, experimental results demonstrated that the proposed metric has low complexity because it is based on application level parameters and its energy consumption is negligible in relation to the energy consumed by the video player; therefore, can be easily implemented in consumer electronic devices. |
| Databáze: | OpenAIRE |
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