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Memory size reduction of the Novel Look-Up-Table method using Symmetry of Fresnel Zone Plate

机译:使用菲涅耳波带片对称性的新型查找表方法的内存大小减少

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Novel look-up table (N-LUT) method to dramatically reduce the number of pre-calculated interference patterns required for generation of digital holograms was proposed. In this method, the N-LUT contains only the fringe patterns of the object points with unity magnitudes located at each center of the depth-dependent image planes of the object. This principal fringe pattern (PFP) can be regarded as the Fresnel zone pattern (FZP) computed at each depth that has reflection symmetry in geometry. Therefore, if we have only half of the PFP, we can generate the computer generated holography (CGH) without the loss of image quality. But the memory size of LUT could be reduced by half.
机译:提出了一种新颖的查找表(N-LUT)方法,该方法可显着减少生成数字全息图所需的预先计算出的干涉图样。在这种方法中,N-LUT仅包含目标点的条纹图样,其单位大小位于目标的与深度相关的像平面的每个中心。该主要条纹图案(PFP)可以被视为在几何上具有反射对称性的每个深度处计算出的菲涅耳带图案(FZP)。因此,如果我们只有PFP的一半,则可以生成计算机生成的全息(CGH),而不会损失图像质量。但是LUT的内存大小可以减少一半。

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