A high-efficiency dynamic backlight dimming algorithm based on visual content analysis

Kyle Shih Huang Lo, Jia Ying Lin, Chia Hung Yeh

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

Abstract

Mobile devices have been playing an important role in our daily lives. Therefore, to extend the standby time of mobile devices has become a focal topic to both industry and academia. Based on the brightness, contrast and motion analysis, this paper proposes a new backlight dimming and pixel compensation method for display power saving when playing video. First, we calculate the brightness and contrast of the frame followed by extracting the motion vectors of the video to obtain the frame speed. Then, we determine the optimized backlight level and pixel compensation value using subjective visual model. Finally, we process pixel compensation by GPU rendering. Experimental results show that our method achieved on average 23% of power saving and preserved good visual quality through the subjective video quality assessment.

Original languageEnglish
Title of host publication2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509023332
DOIs
Publication statusPublished - 2016 Dec 27
Externally publishedYes
Event5th IEEE Global Conference on Consumer Electronics, GCCE 2016 - Kyoto, Japan
Duration: 2016 Oct 112016 Oct 14

Publication series

Name2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016

Other

Other5th IEEE Global Conference on Consumer Electronics, GCCE 2016
Country/TerritoryJapan
CityKyoto
Period2016/10/112016/10/14

Keywords

  • dynamic backlight dimming
  • liquid-crystal display
  • motion vector
  • pixel compensation
  • subjective video quality assessment

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Hardware and Architecture
  • Instrumentation

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