Subjective Assessment of BitDetect-A Mechanism for Energy-Aware Multimedia Content Adaptation

As mobile devices are becoming more compact and powerful and as they start to be increasingly used for accessing power-hungry multimedia streaming applications, there is an increasing need for mechanisms to efficiently manage the limited battery power resources. This is especially important as the b...

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Bibliographic Details
Published in:IEEE transactions on broadcasting 2012-09, Vol.58 (3), p.480-492
Main Authors: Moldovan, Arghir-Nicolae, Muntean, Cristina Hava
Format: Article
Language:English
Subjects:
Applied sciences
Batteries
Battery power saving
Bit rate
bitrate estimation
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Information, signal and communications theory
Mobile handsets
Multimedia communication
objective assessment metrics
Quality assessment
Signal and communications theory
Signal, noise
Streaming media
subjective video quality assessment
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:As mobile devices are becoming more compact and powerful and as they start to be increasingly used for accessing power-hungry multimedia streaming applications, there is an increasing need for mechanisms to efficiently manage the limited battery power resources. This is especially important as the battery capacity has not kept up with the power requirements of an increasing number of mobile device features and "always on" connected users. Adaptive multimedia-based power-saving mechanisms often decrease the clip bitrate to increase the mobile device battery life, without considering the effect of these degradations on the user-perceived quality. This paper proposes BitDetect, a mechanism that uses objective video quality assessment metrics to detect content-specific video bitrate levels that enable saving battery power while maintaining good user perceived quality. Results from a subjective study indicate that the recommended bitrate offers good user-perceived quality across different multimedia clips. Furthermore, experimental tests indicate that significant battery power can be saved by using the recommended bitrates when streaming multimedia clips to a mobile device.
ISSN:0018-9316
1557-9611
DOI:10.1109/TBC.2012.2191688