Cylindrical angular spectrum using Fourier coefficients of point light source and its application to fast hologram calculation.
Cylindrical angular spectrum using Fourier coefficients of point light source and its application to fast hologram calculation.
复制标题
利用点光源傅里叶系数的柱面角谱及其在快速全息图计算中的应用
DOI：
10.1364/oe.23.029555
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发表时间：
2015
期刊：
影响因子：
3.8
通讯作者：
I. Jeong
中科院分区：
文献类型：
--
作者：
Seungtaik Oh;I. Jeong
我们将引入一个新的简单的点光源的三维场分布的傅立叶系数的解析公式，以产生一个圆柱形的角谱，该角谱在360°内捕获3D傅立叶空间中的物波。从概念上讲，柱面角谱可以理解为Sando等人的全向谱方法的柱面版本。我们的傅立叶系数公式基于点光在所有方向均匀辐射的直观观察。我们的公式是定义在所有的频率向量躺在整个领域的3D傅立叶空间，是更自然和计算更有效的所有周围记录的对象波比以前的全向谱方法。为了提高全息图的三维质量，本文还提出了一种适用于任意复杂物体的基于频率的广义遮挡剔除方法。作为柱面角谱的一个实际应用，给出了一个交互全息图的例子和实现细节。
We will introduce a new simple analytic formula of the Fourier coefficient of the 3D field distribution of a point light source to generate a cylindrical angular spectrum which captures the object wave in 360° in the 3D Fourier space. Conceptually, the cylindrical angular spectrum can be understood as a cylindrical version of the omnidirectional spectral approach of Sando et al. Our Fourier coefficient formula is based on an intuitive observation that a point light radiates uniformly in all directions. Our formula is defined over all frequency vectors lying on the entire sphere in the 3D Fourier space and is more natural and computationally more efficient for all around recording of the object wave than that of the previous omnidirectional spectral method. A generalized frequency-based occlusion culling method for an arbitrary complex object is also proposed to enhance the 3D quality of a hologram. As a practical application of the cylindrical angular spectrum, an interactive hologram example is presented together with implementation details.
影响因子：
3.8
作者：
B. Jackin;T. Yatagai
通讯作者：
B. Jackin;T. Yatagai