25 February 2014 Efficient digital hologram computation using difference between frames and compensated principal fringe patterns
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Abstract
In this paper, a novel approach for fast generation of video holograms of three-dimensional (3-D) moving objects using compensated principal fringe patterns (C-PFP)-based novel-look-up-table (N-LUT) method is proposed. If the object point is changed between frames, two calculations are needed in conventional temporal redundancy-based N-LUT (TRN- LUT) method, but only one calculation is needed by compensating the difference in intensity and depth values using C-PFP. That is, hologram patterns for moving 3-D object can be calculated by simply multiplying the C-PFP to hologram pattern by difference of depth value. Experimental results with test 3-D video having camera panning reveal that the average number of calculated object points and the average calculation time for one object point of the proposed method, have found to be reduced down to 47.3%, 41.7%, and 40.5%, 32.9%, respectively compared to those of the conventional N-LUT and TR-N-LUT methods.
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Seung-Cheol Kim, Seung-Cheol Kim, Eun-Soo Kim, Eun-Soo Kim, } "Efficient digital hologram computation using difference between frames and compensated principal fringe patterns", Proc. SPIE 9006, Practical Holography XXVIII: Materials and Applications, 90061M (25 February 2014); doi: 10.1117/12.2041868; https://doi.org/10.1117/12.2041868
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