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Proceedings Paper

Fractal digital image synthesis and application in security holograms
Author(s): Hanqiang Cao; Guang-Xi Zhu; Yaoting Zhu; Zhaoqun Zhang; Yulin Cao; Hongwei Ge; Xuan Li
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Paper Abstract

Conventional method to generate a view angle combining rainbow hologram used a camera to record the sequence of pictures of an object. The object could be a model or a real object. It cost time and money. In recent years, computer-generated holograms have been investigated intensively because of their wide application range and their advantages in term of flexibility, accuracy, light weight and cost. In this paper, a new kind of fractal digital hologram is introduced. The fractal digital holograms are produced with the hyper-complex number model, the fractal hyper-texture model and the self-similar image model based on multi-scale Hurst parameters. The fractal digital holograms have been used in security holograms. In a security hologram, the more complex the model is, the more security the hologram has. The results indicate that fractal digital holograms have a good prospect for application in security holograms.

Paper Details

Date Published: 3 October 2000
PDF: 6 pages
Proc. SPIE 4149, Holography 2000, (3 October 2000); doi: 10.1117/12.402480
Show Author Affiliations
Hanqiang Cao, Huazhong Univ. of Science and Technology (China)
Guang-Xi Zhu, Huazhong Univ. of Science and Technology (China)
Yaoting Zhu, Huazhong Univ. of Science and Technology (China)
Zhaoqun Zhang, Huazhong Univ. of Science and Technology (China)
Yulin Cao, Huazhong Univ. of Science and Technology (China)
Hongwei Ge, Huazhong Univ. of Science and Technology (China)
Xuan Li, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4149:
Holography 2000
Tung H. Jeong; Werner K. Sobotka, Editor(s)

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