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首页> 外文期刊>Journal of Computers >Simultaneous CFA Demosaicking of Three Color Planes for Improved Color Accuracy
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Simultaneous CFA Demosaicking of Three Color Planes for Improved Color Accuracy

机译：同时进行CFA三种色彩平面的脱模处理，以提高色彩精度

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Color Filter Array (CFA) demosaicking is an interpolation process of reconstructing a full color image from a single image sensor. Conventionally, color planes are demosaicked sequentially. The green color plane is usually demosaicked first due to the fact that it contains twice the information of the other color planes for the Bayer pattern, and then followed by the demosaicking of red and blue color planes. However, this sequential process of demosaicking will produce color artifacts which cannot be recognized until all the color planes have been demosaicked. In our paper, we propose a novel technique to demosaic the three color planes simultaneously so as to avoid the selection of artifact pixels. Based on the interpolation in different directions to estimate a full color pixel for edge preservation, multiple combinations of RGB color values for a pixel location are generated. Among those RGB combinations, some are good estimates while others are color artifacts. Using the color–line property to discriminate those color artifact pixels, an optimum RGB color value from those good estimates will be selected. It has been shown that our proposed algorithm outperforms the other benchmarking algorithms and produces minimal color artifacts. The experimental results have shown consistency in performance in both perceptual and objective evaluation for various types of image datasets.
机译：彩色滤光片阵列（CFA）去马赛克是一种从单个图像传感器重建全彩色图像的插值过程。传统上，色平面是顺序去马赛克的。通常，绿色平面先去马赛克，这是因为绿色平面包含拜耳图案的其他颜色平面的两倍信息，然后是红色和蓝色平面的去马赛克。但是，去马赛克的这种顺序过程将产生颜色伪影，直到所有颜色平面都被去马赛克后才能识别。在我们的论文中，我们提出了一种同时对三个颜色平面进行去马赛克的新颖技术，从而避免了人工像素的选择。基于不同方向的插值以估计用于边缘保留的全色像素，将生成像素位置的RGB颜色值的多个组合。在这些RGB组合中，一些是好的估计，而另一些是颜色伪影。使用色线属性来区分那些颜色伪影像素，将从这些良好的估计中选择最佳的RGB颜色值。已经表明，我们提出的算法优于其他基准测试算法，并且产生最少的颜色伪影。实验结果表明，在各种类型的图像数据集的感知和客观评估中，性能均具有一致性。

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