The visible differences predictor: an algorithm for the assessment of image fidelity
Digital images and human vision
An adaptive clustering algorithm for color quantization
Pattern Recognition Letters
Low-power color TFT LCD display for hand-held embedded systems
Proceedings of the 2002 international symposium on Low power electronics and design
Low Power Control Techniques For TFT LCD Displays
CASES '02 Proceedings of the 2002 international conference on Compilers, architecture, and synthesis for embedded systems
IEEE Concurrency
Comparing Images Using the Hausdorff Distance
IEEE Transactions on Pattern Analysis and Machine Intelligence
Color image quantization for frame buffer display
SIGGRAPH '82 Proceedings of the 9th annual conference on Computer graphics and interactive techniques
Memory Bus Encoding for Low Power: A Tutorial
ISQED '01 Proceedings of the 2nd International Symposium on Quality Electronic Design
Pattern Classification (2nd Edition)
Pattern Classification (2nd Edition)
A compressed frame buffer to reduce display power consumption in mobile systems
Proceedings of the 2004 Asia and South Pacific Design Automation Conference
Image Processing, Analysis, and Machine Vision
Image Processing, Analysis, and Machine Vision
Stepwise data driving method and circuits for low-power TFT-LCDs
IEEE Transactions on Consumer Electronics
Chromatic encoding: a low power encoding technique for digital visual interface
IEEE Transactions on Consumer Electronics
Energy-efficient bus encoding for LCD digital display interfaces
IEEE Transactions on Consumer Electronics
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The limited resolution capabilities of color displays, coupled with the limited perceptual resolution of the human eye has been exploited to reduce the actual number of colors that are simultaneously displayed. In this work, we propose a color approximation approach, orthogonal to traditional color simplification schemes done either in the frame buffer or in the LCD controller, that targets the reduction of the energy required for the transmission of color data on digital LCD interfaces. Our approach leverages the serial nature of the transmission so as to approximate RGB pixel values with suitable codes that minimize the number of transitions on the LCD bus, for a given tolerated image quality level. Application of this scheme on a set of images shows energy savings from 60% to 75%, depending on the image quality.