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Joint Demosaicing and Subpixel-Based Down-Sampling for Bayer Images: A Fast Frequency-Domain Analysis Approach

机译:联合去马赛克和基于亚像素的Bayer图像下采样:一种快速的频域分析方法

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摘要

A portable device such as a digital camera with a single sensor and Bayer color filter array (CFA) requires demosaicing to reconstruct a full color image. To display a high resolution image on a low resolution LCD screen of the portable device, it must be down-sampled. The two steps, demosaicing and down-sampling, influence each other. On one hand, the color artifacts introduced in demosaicing may be magnified when followed by down-sampling; on the other hand, the detail removed in the down-sampling cannot be recovered in the demosaicing. Therefore, it is very important to consider simultaneous demosaicing and down-sampling.
机译:具有单个传感器和拜耳彩色滤光片阵列(CFA)的便携式设备(如数码相机)需要去马赛克以重建全彩色图像。要在便携式设备的低分辨率LCD屏幕上显示高分辨率图像,必须对其进行下采样。去马赛克和下采样这两个步骤相互影响。一方面,去马赛克后引入的彩色伪像在进行下采样时可能会放大;另一方面,在降采样中无法恢复下采样中删除的细节。因此,考虑同时进行去马赛克和下采样非常重要。

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