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- W1992008265 abstract "Digital still cameras generally use an optical low-pass filter(OLPF) to enhance the image quality by removing high spatial frequencies causing aliasing. While eliminating the OLPF can save manufacturing costs, images captured without using an OLPF include moiré in the high spatial frequency region of the image. Therefore, to reduce the presence of moiré in a captured image, this paper presents a moiré reduction method without the use of an OLPF. First, the spatial frequency response(SFR) of the camera is analyzed and moiré regions detected using patterns related to the SFR of the camera. Using these detected regions, the moiré components represented by the inflection point between the high frequency and DC components in the frequency domain are selected and then removed. Experimental results confirm that the proposed method can achieve moiré reduction while preserving detail information." @default.
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- W1992008265 date "2014-01-08" @default.
- W1992008265 modified "2023-09-23" @default.
- W1992008265 title "Moire reduction using inflection point in frequency domain" @default.
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- W1992008265 doi "https://doi.org/10.1117/12.2040860" @default.
- W1992008265 hasPublicationYear "2014" @default.
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