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Proceedings Paper

Efficient generation of 3D hologram for American Sign Language using look-up table
Author(s): Joo-Sup Park; Seung-Cheol Kim; Eun-Soo Kim
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Paper Abstract

American Sign Language (ASL) is one of the languages giving the greatest help for communication of the hearing impaired person. Current 2-D broadcasting, 2-D movies are used the ASL to give some information, help understand the situation of the scene and translate the foreign language. These ASL will not be disappeared in future three-dimensional (3-D) broadcasting or 3-D movies because the usefulness of the ASL. On the other hands, some approaches for generation of CGH patterns have been suggested like the ray-tracing method and look-up table (LUT) method. However, these methods have some drawbacks that needs much time or needs huge memory size for look-up table. Recently, a novel LUT (N-LUT) method for fast generation of CGH patterns of 3-D objects with a dramatically reduced LUT without the loss of computational speed was proposed. Therefore, we proposed the method to efficiently generate the holographic ASL in holographic 3DTV or 3-D movies using look-up table method. The proposed method is largely consisted of five steps: construction of the LUT for each ASL images, extraction of characters in scripts or situation, call the fringe patterns for characters in the LUT for each ASL, composition of hologram pattern for 3-D video and hologram pattern for ASL and reconstruct the holographic 3D video with ASL. Some simulation results confirmed the feasibility of the proposed method in efficient generation of CGH patterns for ASL.

Paper Details

Date Published: 10 February 2010
PDF: 10 pages
Proc. SPIE 7619, Practical Holography XXIV: Materials and Applications, 761912 (10 February 2010); doi: 10.1117/12.844154
Show Author Affiliations
Joo-Sup Park, Kwangwoon Univ. (Korea, Republic of)
Seung-Cheol Kim, Kwangwoon Univ. (Korea, Republic of)
Eun-Soo Kim, Kwangwoon Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7619:
Practical Holography XXIV: Materials and Applications
Hans I. Bjelkhagen; Raymond K. Kostuk, Editor(s)

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