HVS-DBS

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HVS-DBS: human visual system-aware dynamic luminance backlight scaling for video streaming applications

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International Conference on Compilers, Architecture and Synthesis for Embedded Systems archive
Proceedings of the seventh ACM international conference on Embedded software table of contents

Grenoble, France

SESSION: Energy aware design table of contents

Pages 21-28

Year of Publication: 2009

ISBN:978-1-60558-627-4

Authors

Andrea Bartolini	University of Bologna, Bologna, Italy
Martino Ruggiero	University of Bologna, Bologna, Italy
Luca Benini	University of Bologna, Bologna, Italy

Sponsors

ACM: Association for Computing Machinery
SIGBED: ACM Special Interest Group on Embedded Systems
SIGMICRO: ACM Special Interest Group on Microarchitectural Research and Processing
SIGDA: ACM Special Interest Group on Design Automation

Publisher

ACM New York, NY, USA

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ABSTRACT

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.

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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