脱模
彩色滤光片阵列
人工智能
计算机视觉
傅里叶变换
计算机科学
彩色凝胶
极化(电化学)
滤波器(信号处理)
光学
图像处理
彩色图像
数学
图像(数学)
材料科学
物理
数学分析
化学
物理化学
图层(电子)
复合材料
薄膜晶体管
作者
Nathan Hagen,Thijs Stockmans,Yukitoshi Otani,Prathan Buranasiri
出处
期刊:Applied Optics
[The Optical Society]
日期:2024-02-26
卷期号:63 (9): 2314-2314
被引量:2
摘要
We review Fourier-domain methods for demosaicking Bayer-filter color cameras and monochrome polarization cameras, and then generalize the approach for the quad-Bayer-filter mosaic and for color-polarization cameras. For each of these four mosaic filter types, we provide theoretical expressions for the sampling functions, the Fourier-domain channels, and the linear combination of reconstructed channels (the demosaicking algorithm) needed to estimate the input (presampled) image. A useful advantage of the Fourier-domain approach is that it provides a direct means of visualizing and quantifying when aliasing is likely or unlikely to be present. For the Bayer and quad-Bayer-filter types, we provide simulated images, while for the polarization camera types we provide experimental images and videos to illustrate the algorithm and analyze crosstalk error.
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