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Fast Generation of 3-D Video Holograms using a Look-up Table and Temporal Redundancy of 3-D Video Image  

Kim, Seung-Cheol (광운대학교 전자공학과 차세대 3D 디스플레이 연구센터)
Kim, Eun-Soo (광운대학교 전자공학과 차세대 3D 디스플레이 연구센터)
Abstract
In this paper, a new method for efficient computation of CGH patterns for 3-D video images is proposed by combined use of temporal redundancy and look-up table techniques. In the conventional N-LT method, fringe patterns for other object points on that image plane can be obtained by simply shifting these pre-calculated PFP (Principle Fringe Patterns). But there have been many practical limitations in real-time generation of 3-D video holograms because the computation time required for the generation of 3-D video holograms must be massively increased compared to that of the static holograms. On the other hand, as ordinary 3-D moving pictures have numerous similarities between video frames, called by temporal redundancy, and this redundancy is used to compress the video image. Therefore, in this paper, we proposed the efficient hologram generation method using the temporal redundancy of 3-D video image and N-LT method. To confirm the feasibility of the proposed method, some experiments with test 3-D videos are carried out, and the results are comparatively discussed with the conventional methods in terms of the number of object points and computation time.
Keywords
3D Display; Holography; CGH(Computer Generated Holography); Look-up Table;
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Times Cited By KSCI : 1  (Citation Analysis)
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