Color reproductivity improvement with additional virtual color filters for WRGB image sensor

机译：通过用于WRGB图像传感器的附加虚拟滤色器提高色彩再现性

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We have developed a high accuracy color reproduction method based on an estimated spectral reflectance of objects using additional virtual color filters for a wide dynamic range WRGB color filter CMOS image sensor. The four virtual color filters are created by multiplying the spectral sensitivity of White pixel by gauss functions which have different central wave length and standard deviation, and the virtual sensor outputs of those virtual filters are estimated from the four real output signals of the WRGB image sensor. The accuracy of color reproduction was evaluated with a Macbeth Color Checker (MCC), and the averaged value of the color difference AEab of 24 colors was 1.88 with our approach.

机译：我们已经针对物体的光谱反射率开发了一种高精度的色彩再现方法，该方法使用了适用于宽动态范围WRGB彩色滤光片CMOS图像传感器的附加虚拟彩色滤光片。通过将白色像素的光谱灵敏度乘以具有不同中心波长和标准偏差的高斯函数来创建四个虚拟滤色器，然后从WRGB图像传感器的四个实际输出信号估计这些虚拟滤镜的虚拟传感器输出。使用Macbeth色彩检查器（MCC）评估色彩再现的准确性，使用我们的方法，24种色彩的色差AEab的平均值为1.88。

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来源
《Color imaging XVIII: Displaying, processing, hardcopy, and applications》|2013年|865205.1-865205.7|共7页
会议地点 Burlingame CA(US)
作者
Shun Kawada; Rihito Kuroda; Shigetoshi Sugawa;
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作者单位

Graduate School of Engineering, Tohoku University,6-6-11-811, Aza-Aoba, Aramaki, Aoba-ku, Sendai-shi, Miyagi, Japan 980-8579;

Graduate School of Engineering, Tohoku University,6-6-11-811, Aza-Aoba, Aramaki, Aoba-ku, Sendai-shi, Miyagi, Japan 980-8579;

Graduate School of Engineering, Tohoku University,6-6-11-811, Aza-Aoba, Aramaki, Aoba-ku, Sendai-shi, Miyagi, Japan 980-8579;

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原文格式 PDF
正文语种 eng
中图分类
关键词
CMOS image sensor; LOFIC; WRGB color filter; color signal processing; spectrum estimation;

机译：CMOS图像传感器LOFIC; WRGB彩色滤光片；彩色信号处理；频谱估计;

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Color reproductivity improvement with additional virtual color filters for WRGB image sensor

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