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P‐44: Adaptive Threshold Overdriving Scheme for Improved LCD‐TV Noise Performance
Author(s) -
Oh Jaeho,
Sohn Kwanghoon,
Nam Hyoungsik,
Shin ByungHyuk,
Kim SeonKi,
Kim Namdeok,
Berkeley Brian H.,
Kim Sang Soo
Publication year - 2009
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3256522
Subject(s) - computer science , noise (video) , liquid crystal display , image noise , controller (irrigation) , scheme (mathematics) , computer vision , artificial intelligence , electronic engineering , image (mathematics) , engineering , mathematics , mathematical analysis , agronomy , biology , operating system
This paper proposes an adaptive threshold overdriving algorithm to avoid exacerbating noise problems in LCD‐TVs. In conventional LCD‐TVs, video image noise is boosted by the timing controller's overdrive function, resulting in harsh noise as perceived by the human visual system. Various gray data and noise levels have been analyzed, and the conditions which generate the boosted noise have been extracted and applied to a new algorithm to adjust overdrive threshold criteria according to the input images. The new overdriving scheme shows greatly improved noise performance compared to conventional fixed threshold schemes.