Power Minimization in a Backlit TFT-LCD Display by Concurrent Brightness and Contrast Scaling
Proceedings of the conference on Design, automation and test in Europe - Volume 1
DLS: dynamic backlight luminance scaling of liquid crystal display
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
HEBS: Histogram Equalization for Backlight Scaling
Proceedings of the conference on Design, Automation and Test in Europe - Volume 1
Perception-guided power minimization for color sequential displays
GLSVLSI '06 Proceedings of the 16th ACM Great Lakes symposium on VLSI
Temporal vision-guided energy minimization for portable displays
Proceedings of the 2006 international symposium on Low power electronics and design
Quality-based backlight optimization for video playback on handheld devices
Advances in Multimedia
EMSOFT '08 Proceedings of the 8th ACM international conference on Embedded software
Power Management in Mobile Devices
Power Management in Mobile Devices
Visual quality analysis for dynamic backlight scaling in LCD systems
Proceedings of the Conference on Design, Automation and Test in Europe
HVS-aware dynamic backlight scaling in TFT-LCDs
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Dynamic backlight scaling optimization for mobile streaming applications
Proceedings of the 17th IEEE/ACM international symposium on Low-power electronics and design
Object-based local dimming for LCD systems with LED BLUs
Proceedings of the 17th IEEE/ACM international symposium on Low-power electronics and design
MELOADES: Methodology for long-term online adaptation of embedded software for heterogeneous devices
Journal of Systems Architecture: the EUROMICRO Journal
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Despite the advances in Liquid Crystal Display's (LCD) technology, LCD power consumption is still one of the major limiters of battery lifetime for handheld devices. The main contribution to LCD subsystem power consumption comes from the backlight. This can be substantially reduced by dynamically adapting backlight intensity while compensating the image quality degradation through image pixel transformation. Several compensation algorithms have been recently proposed to this purpose, but none of them is really capable of ensuring a target image quality while achieving major power savings. We propose a novel on-line technique for dynamic backlight scaling. Our approach is HVS (i.e. Human Visual System) and image structure-aware. We provide a fully operational implementation of the proposed framework by which we carried out a full characterization of the overall system power consumption versus QoS.