Green noise video halftoning

Video halftoning is a technology used to render a video onto a display device that can only display limited number of levels. Conventional video halftoning algorithms produce blue noise video halftones which are prone to flickering. Dedicated deflickering processes are hence required to reduce flick...

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Bibliographic Details
Published inInternational Conference on Digital Signal Processing proceedings pp. 89 - 93
Main Authors Yik-Hing Fung, Yuk-Hee Chan
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2014
Subjects
Digital signal processing
Noise
Signal processing algorithms
Stability analysis
Testing
Video sequences
Visualization
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Summary:Video halftoning is a technology used to render a video onto a display device that can only display limited number of levels. Conventional video halftoning algorithms produce blue noise video halftones which are prone to flickering. Dedicated deflickering processes are hence required to reduce flickering. These processes share a common approach in which pixels are artificially made stable subject to some quality constraints. Due to the difficulty to control the extent of stability, artifacts caused by overstability such as dirty window effect, subtle motion and residual shadow are easily found in video halftones. In this paper, we suggest producing green noise video halftones instead of blue noise video halftones. By doing so, we can effectively reduce flickering and eliminate artifacts caused by overstability from the root simultaneously.
ISSN:1546-1874
DOI:10.1109/ICDSP.2014.6900807