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PubMed · 15700531

Demosaicing using optimal recovery.

D Darian Muresan·Thomas W Parks
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Abstract

Color images in single-chip digital cameras are obtained by interpolating mosaiced color samples. These samples are encoded in a single-chip charge-coupled device by sampling the light after it passes through a color filter array (CFA) that contains different color filters (i.e., red, green, and blue) placed in some pattern. The resulting sparsely sampled images of the three-color planes are interpolated to obtain the complete color image. Interpolation usually introduces color artifacts due to the phase-shifted, aliased signals introduced by the sparse sampling of the CFAs. This paper introduces a nonlinear interpolation scheme based on edge information that produces high-quality visual results. The new method is especially good at reconstructing the image around edges, a place where the visual human system is most sensitive.

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AlgorithmsColorColorimetryComputer GraphicsComputer SimulationImage EnhancementImage Interpretation, Computer-AssistedInformation Storage and RetrievalModels, BiologicalModels, StatisticalNumerical Analysis, Computer-AssistedPattern Recognition, AutomatedPhotographyReproducibility of ResultsSensitivity and SpecificitySignal Processing, Computer-AssistedSubtraction TechniqueComparative StudyEvaluation StudyJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.Validation Study

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D Darian Muresan, Thomas W Parks. 2005. Demosaicing using optimal recovery.. https://doi.org/10.1109/tip.2004.838697

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