A constrained error diffusion method to shape quantization noise in backlight dimming

Zi Xin Xu, Yuk Hee Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Backlight dimming is a powerful method to reduce power consumption of LED-LC displays. However, there remains a problem to preserve perceived quality while reducing backlight luminance. Distortion of backlight dimming can be classified to three types: clipping, leakage and quantization. The former two distortions have been widely discussed in the literature, but the quantization noise is generally ignored. This paper presents a LC compensation framework which exploits error diffusion to shape the quantization noise. Simulation results show that the proposed approach is efficient to achieve the goal.
Original languageEnglish
Title of host publication2014 19th International Conference on Digital Signal Processing, DSP 2014
PublisherIEEE
Pages909-913
Number of pages5
Volume2014-January
ISBN (Electronic)9781479946129
DOIs
Publication statusPublished - 1 Jan 2014
Event2014 19th International Conference on Digital Signal Processing, DSP 2014 - Hong Kong, Hong Kong
Duration: 20 Aug 201423 Aug 2014

Conference

Conference2014 19th International Conference on Digital Signal Processing, DSP 2014
Country/TerritoryHong Kong
CityHong Kong
Period20/08/1423/08/14

ASJC Scopus subject areas

  • Signal Processing

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