MobiSLIC

Content-aware energy saving for educational videos on mobile devices

Qiyam Tung, Maximiliano Korp, Christopher Gniady, Alon Efrat, Jacobus J Barnard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a context-aware system that simultaneously increases energy-efficiency and readability for educational videos on smartphones with OLED displays. Our system analyzes the content of each frame of the video and intelligently modifies the colors and presentations of specific regions of the frame to drastically reduce display energy consumption while retaining relevant content of the lecture video. We achieve this by leveraging the mapping between frames and electronic versions of slides used in the lecture. This enables separate manipulation of the slide area and the background. Further, since the slides can themselves be analyzed for content (e.g. text and images within) this approach provides substantive control over energy use and user experience. We evaluate the system using extensive energy measurements performed on phones using two different display technologies. Our method was able to reduce energy usage up to 59.2 % of the energy used by the display which amounts to 27 % of the total energy used by the device.

Original languageEnglish (US)
Title of host publicationLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
PublisherSpringer Verlag
Pages396-408
Number of pages13
Volume131
ISBN (Print)9783319115689
DOIs
StatePublished - 2014
Event10th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MOBIQUITOUS 2013 - Tokyo, Japan
Duration: Dec 2 2013Dec 4 2013

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume131
ISSN (Print)18678211

Other

Other10th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MOBIQUITOUS 2013
CountryJapan
CityTokyo
Period12/2/1312/4/13

Fingerprint

Mobile devices
Energy conservation
Display devices
Electric power measurement
Smartphones
Organic light emitting diodes (OLED)
Energy efficiency
Energy utilization
Color

Keywords

  • Energy-efficiency
  • Lecture videos
  • OLED
  • Smartphones

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Tung, Q., Korp, M., Gniady, C., Efrat, A., & Barnard, J. J. (2014). MobiSLIC: Content-aware energy saving for educational videos on mobile devices. In Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST (Vol. 131, pp. 396-408). (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST; Vol. 131). Springer Verlag. https://doi.org/10.1007/978-3-319-11569-6_31

MobiSLIC : Content-aware energy saving for educational videos on mobile devices. / Tung, Qiyam; Korp, Maximiliano; Gniady, Christopher; Efrat, Alon; Barnard, Jacobus J.

Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST. Vol. 131 Springer Verlag, 2014. p. 396-408 (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST; Vol. 131).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tung, Q, Korp, M, Gniady, C, Efrat, A & Barnard, JJ 2014, MobiSLIC: Content-aware energy saving for educational videos on mobile devices. in Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST. vol. 131, Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST, vol. 131, Springer Verlag, pp. 396-408, 10th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MOBIQUITOUS 2013, Tokyo, Japan, 12/2/13. https://doi.org/10.1007/978-3-319-11569-6_31
Tung Q, Korp M, Gniady C, Efrat A, Barnard JJ. MobiSLIC: Content-aware energy saving for educational videos on mobile devices. In Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST. Vol. 131. Springer Verlag. 2014. p. 396-408. (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST). https://doi.org/10.1007/978-3-319-11569-6_31
Tung, Qiyam ; Korp, Maximiliano ; Gniady, Christopher ; Efrat, Alon ; Barnard, Jacobus J. / MobiSLIC : Content-aware energy saving for educational videos on mobile devices. Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST. Vol. 131 Springer Verlag, 2014. pp. 396-408 (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST).
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