Fractal digital image synthesis and application in security holograms

Hanqiang Cao; Guang-Xi Zhu; Yaoting Zhu; Zhaoqun Zhang; Yulin Cao; Hongwei Ge; Xuan Li

doi:10.1117/12.402480

3 October 2000 Fractal digital image synthesis and application in security holograms

Hanqiang Cao, Guang-Xi Zhu, Yaoting Zhu, Zhaoqun Zhang, Yulin Cao, Hongwei Ge, Xuan Li

Proceedings Volume 4149, Holography 2000; (2000) https://doi.org/10.1117/12.402480
Event: Holography 2000, 2000, St. Poelton, Austria

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.

Citation Download Citation

Hanqiang Cao, Guang-Xi Zhu, Yaoting Zhu, Zhaoqun Zhang, Yulin Cao, Hongwei Ge, and Xuan Li "Fractal digital image synthesis and application in security holograms", Proc. SPIE 4149, Holography 2000, (3 October 2000); https://doi.org/10.1117/12.402480

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