A win-win camera: Quality-enhanced power-saving images on mobile OLED displays

Chih Kai Kang, Chun-Han Lin, Pi Cheng Hsiu

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

9 Citations (Scopus)

Abstract

Mobile systems will increasingly feature emerging OLED displays, whose power consumption is highly dependent on the image content. Existing OLED power-saving techniques change users' visual experience or degrade images' visual quality in exchange for power reduction, or seek a chance to also enhance image quality by employing a compound objective function. This paper presents a win-win scheme that always enhances image quality and reduces power consumption simultaneously. We define metrics to assess the profit and the cost for potential image enhancement and power reduction. Then, we propose algorithms that ensure the transformation of images into their quality-enhanced power-saving versions. Finally, the proposed scheme is realized as a practical camera application on mobile devices. The results of experiments conducted on a commercial tablet with a popular image database are very encouraging and provide valuable insights for future research and practices.

Original languageEnglish
Title of host publicationProceedings of the International Symposium on Low Power Electronics and Design, ISLPED 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages267-272
Number of pages6
ISBN (Electronic)9781467380096
DOIs
Publication statusPublished - 2015 Sep 21
Event20th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2015 - Rome, Italy
Duration: 2015 Jul 222015 Jul 24

Publication series

NameProceedings of the International Symposium on Low Power Electronics and Design
Volume2015-September
ISSN (Print)1533-4678

Other

Other20th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2015
CountryItaly
CityRome
Period15/7/2215/7/24

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Keywords

  • OLED displays
  • image enhancement
  • mobile devices
  • power saving

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kang, C. K., Lin, C-H., & Hsiu, P. C. (2015). A win-win camera: Quality-enhanced power-saving images on mobile OLED displays. In Proceedings of the International Symposium on Low Power Electronics and Design, ISLPED 2015 (pp. 267-272). [7273525] (Proceedings of the International Symposium on Low Power Electronics and Design; Vol. 2015-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISLPED.2015.7273525