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Human Visual System-Aware Optimal Power-Saving Color Transformation for Mobile OLED Devices
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  • Journal title : Journal of KIISE
  • Volume 43, Issue 1,  2016, pp.126-134
  • Publisher : Korean Institute of Information Scientists and Engineers
  • DOI : 10.5626/JOK.2016.43.1.126
 Title & Authors
Human Visual System-Aware Optimal Power-Saving Color Transformation for Mobile OLED Devices
Lee, Jae-Hyeok; Kim, Eun-Sil; Kim, Young-Jin;
Due to the merits of OLED displays such as fast responsiveness, wide view angle, and power efficiency, their use has increased. However, despite the power efficiency of OLED displays, the portion of their power consumption among the total power consumption is still high since user interaction-based applications such as instant messaging, video play, and games are frequently used. Their power consumption varies significantly depending on the display contents and thus color transformation is one of the low-power techniques used in OLED displays. Prior low-power color transformation techniques have not been rigorously studied in terms of satisfaction of the human visual system, and have not considered optimal visual satisfaction and power consumption at the same time in relation to color transformation. In this paper, we propose a novel low-power color transformation technique which strictly considers human visual system-awareness as well as optimization of both visual satisfaction and power consumption in a balanced way. Experimental results show that the proposed technique achieves better human visual satisfaction in terms of visuality and also shows on average 13.4% and 22.4% improvement over a prior one in terms of power saving.
mobile;OLED display;human visual system;visuality-awareness;low-power;color transformation;color space searching;optimal power-saving;
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