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In this paper, memory reduction method using the Sub-PFP is proposed. That is, two-dimensional PFPs in conventional N-LUT method can be converted by one-dimensional Sub-PFPs using trigonometric relations. Some experiments with a test 3-D object are carried out and the reduction ratio of LUT is analyzed.
In novel look-up table (N-LUT) method, the size of LUT is determined by the amount of shift of the principle fringe pattern (PFP). Thus, if the resolution of object is increased or pixel pitch of hologram is decreased, the size of LUT is increased. Therefore, in this paper, we propose the memory reduction method using the relation of pixel pitch of hologram and reconstruction distance. Some experiments...
Recently a 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, principle fringe pattern (PFP) has reflection symmetry in geometry. Thus in this paper, we proposed the memory reduction method using this reflection symmetry of PFP. From some experimental result, the memory...
In this paper, a new approach for fast computation of CGH patterns for the 3-D image by combined use of the DPCM and the N-LUT is proposed. Some experiments with test 3-D images are carried out and the results are compared to those of the conventional methods in terms of the number of the object points and computation time.
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