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Color computer-generated hologram generation using the random phase-free method and color space conversion

机译:使用随机无相位方法和色彩空间转换生成彩色计算机生成的全息图

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We propose two calculation methods of generating color computer-generated holograms (CGHs) with the random phase-free method and color space conversion in order to improve the image quality and accelerate the calculation. The random phase-free method improves the image quality in monochrome CGH, but it is not performed in color CGH. We first aimed to improve the image quality of color CGH using the random phase-free method and then to accelerate the color CGH generation with a combination of the random phase-free method and color space conversion method, which accelerates the color CGH calculation due to down-sampling of the color components converted by color space conversion. To overcome the problem of image quality degradation that occurs due to the down-sampling of random phases, the combination of the random phase-free method and color space conversion method improves the quality of reconstructed images and accelerates the color CGH calculation. We demonstrated the effectiveness of the proposed method in simulation, and in this paper discuss its application to lensless zoomable holographic projection. (C) 2016 Optical Society of America
机译:为了提高图像质量并加快计算速度,我们提出了两种使用随机无相位方法生成彩色计算机生成的全息图(CGH)和进行颜色空间转换的计算方法。随机无相位方法可以改善单色CGH中的图像质量,但不能在彩色CGH中执行。我们首先旨在使用随机无相位方法提高彩色CGH的图像质量,然后结合使用随机无相位方法和色彩空间转换方法来加速彩色CGH的生成,从而加速了CGH的计算。通过色彩空间转换转换后的色彩分量的下采样。为了克服由于随机相位的下采样而引起的图像质量下降的问题,随机无相位方法和色彩空间转换方法的组合提高了重建图像的质量并加快了彩色CGH的计算。我们演示了该方法在仿真中的有效性,并在本文中讨论了其在无透镜可变焦全息投影中的应用。 (C)2016美国眼镜学会

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