Limited intra-word transition codes: an energy-efficient bus encoding for LCD display interfaces
Proceedings of the 2004 international symposium on Low power electronics and design
DLS: dynamic backlight luminance scaling of liquid crystal display
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Power minimization in a backlit TFT-LCD display by concurrent brightness and contrast scaling
IEEE Transactions on Consumer Electronics
Chromatic encoding: a low power encoding technique for digital visual interface
IEEE Transactions on Consumer Electronics
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Image quality assessment: from error visibility to structural similarity
IEEE Transactions on Image Processing
DTM: dynamic tone mapping for backlight scaling
Proceedings of the 42nd annual Design Automation Conference
Perception-guided power minimization for color sequential displays
GLSVLSI '06 Proceedings of the 16th ACM Great Lakes symposium on VLSI
Backlight dimming in power-aware mobile displays
Proceedings of the 43rd annual Design Automation Conference
Minimization for LED-backlit TFT-LCDs
Proceedings of the 43rd annual Design Automation Conference
Temporal vision-guided energy minimization for portable displays
Proceedings of the 2006 international symposium on Low power electronics and design
Viewing direction-aware backlight scaling
Proceedings of the 17th ACM Great Lakes symposium on VLSI
Reducing display power in DVS-enabled handheld systems
ISLPED '07 Proceedings of the 2007 international symposium on Low power electronics and design
EMSOFT '08 Proceedings of the 8th ACM international conference on Embedded software
EMSOFT '09 Proceedings of the seventh ACM international conference on Embedded software
Power modeling of graphical user interfaces on OLED displays
Proceedings of the 46th Annual Design Automation Conference
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
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In this paper, a method is proposed for finding a pixel transformation function that maximizes backlight dimming while maintaining a pre-specified image distortion level for a liquid crystal display. This is achieved by finding a pixel transformation function, which maps the original image histogram to a new histogram with lower dynamic range. Next the contrast of the transformed image is enhanced so as to compensate for brightness loss that would arise from backlight dimming. The proposed approach relies on an accurate definition of the image distortion which takes into account both the pixel value differences and a model of the human visual system and is amenable to highly efficient hardware realization. Experimental results show that the histogram equalization for backlight scaling method results in about 45% power saving with an effective distortion rate of 5% and 65% power saving for a 20% distortion rate. This is significantly higher power savings compared to previously reported backlight dimming approaches.