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Tomoyoshi Shimobaba, Michal Makowski, Takayuki Takahashi, Yota Yamamoto, Ikuo Hoshi, Takashi Nishitsuji, Naoto Hoshikawa, Takashi Kakue and Tomoyoshi Ito
A complex amplitude hologram can reconstruct perfect light waves. However, as there are no spatial light modulators that are able to display complex amplitudes, we need to use amplitude, binary, or phase-only holograms. The images reconstructed from such...
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Lizhi Chen, Hao Zhang, Zehao He, Xiaoyu Wang, Liangcai Cao and Guofan Jin
Phase hologram and diffractive optics element optimization with effective convergence and quality reconstruction.
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Philippe Gentet, Jinbeom Joung, Yves Gentet, Kwang-Jib Kim and Seung-Hyun Lee
This paper presents the Zerotrope, an improved version of the classic phenakistiscope and zoetrope devices. This device is used to create a new 360-degree dynamic 3D display by the inclusion of a single ultra-realistic full-color hologram. The Zerotrope ...
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Hangbo Hua, Takeshi Yamaguchi and Hiroshi Yoshikawa
The volume hologram printer is useful for 3D display, because it is selective to the wavelength and be able to reconstruct with the natural illumination. There are many studies of a volume hologram printer been studied to output a volume hologram from a ...
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Peter Wai Ming Tsang, Ting-Chung Poon and Jung-Ping Liu
Optical scanning holography (OSH) is a powerful and effective method for capturing the complex hologram of a three-dimensional (3-D) scene. Such captured complex hologram is called optical scanned hologram. However, reconstructing a focused image from an...
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Sergey Pereselkov, Venedikt Kuz?kin, Matthias Ehrhardt, Sergey Tkachenko, Pavel Rybyanets and Nikolay Ladykin
In this paper, we study the variations of holograms of a moving source in an inhomogeneous ocean waveguide. It is assumed that intense internal waves (internal solitons) are the reason for the inhomogeneities of the shallow water waveguide. The results o...
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Chih-Chang Chang, Chao-Hung Kuo, Hsuan-Kan Chang, Tsung-Hsi Tu, Li-Yu Fay, Jau-Ching Wu, Henrich Cheng and Wen-Cheng Huang
Percutaneous pedicle screw instrumentation is the keystone of minimally invasive spine surgery. Percutaneous screw placement demands experience and relies greatly on intra-operative image guidance. This study aims to validate the feasibility and accuracy...
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Hao Zhang, Liangcai Cao and Guofan Jin
Holographic three-dimensional (3D) displays can reconstruct a whole wavefront of a 3D scene and provide rich depth information for the human eyes. Computer-generated holographic techniques offer an efficient way for reconstructing holograms without compl...
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Wen-Jing Zhou, Caifu Zheng and Ting-Chung Poon
We present a simple yet effective method, without the need for any additional recording of intensity maps or tremendous iterative computations, to recover reference-wave intensity resulting from the complex hologram acquired by quadrature phase-shifting ...
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Takaaki Musha
D. Pollen and M. Trachtenberg proposed the holographic brain theory to help explain the existence of photographic memories in some people. They suggested that such individuals had more vivid memories because they somehow could access a very large region ...
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Sergey Alexandrovich Shoydin and Artem Levonovich Pazoev
The results of this work can be used in the development of holographic television and 3D augmented reality systems, including the entire available range of electromagnetic radiation, acousto-optics and their multiplexing.
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Sergey A. Shoydin, Sergey B. Odinokov, Artem L. Pazoev, Ivan K. Tsyganov and Ekaterina A. Drozdova
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John Restrepo, Nelson Correa-Rojas and Jorge Herrera-Ramirez
Speckle noise is a well-documented problem on coherent imaging techniques like Digital Holography. A method to reduce the speckle noise level is presented, based on introducing a Digital Micromirror Device to phase modulate the illumination over the obje...
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Haining Yang and Daping Chu
Image quality metrics are a critical element in the iterative Fourier transform algorithms (IFTAs) for the computer generation of phase-only holograms. Conventional image quality metrics such as root-mean-squared error (RMSE) are sensitive to image conte...
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Yingjie Wang, Lianhong Zhang, Wei Ma, Yanhui Wang, Wendong Niu, Yu Song and Weimin Wang
Accurate quantitative plankton observation is significant for biogeochemistry and environmental monitoring. However, current observation equipment is mostly shipborne, and there is a lack of long-term, large-scale, and low-cost methods for plankton obser...
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Zhuoshi Li, Yuanyuan Chen, Jiasong Sun, Yanbo Jin, Qian Shen, Peng Gao, Qian Chen and Chao Zuo
Slightly off-axis digital holographic microscopy (DHM) is the extension of digital holography imaging technology toward high-throughput modern optical imaging technology. However, it is difficult for the method based on the conventional linear Fourier do...
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Huang-Ming Philip Chen, Jhou-Pu Yang, Hao-Ting Yen, Zheng-Ning Hsu, Yuge Huang and Shin-Tson Wu
Fine pixel size and high-resolution liquid crystal on silicon (LCoS) backplanes have been developed by various companies and research groups since 1973. The development of LCoS is not only beneficial for full high definition displays but also to spatial ...
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Vladimir M. Ivanov, Anton M. Krivtsov, Sergey V. Strelkov, Nikolay V. Kalakutskiy, Andrey I. Yaremenko, Marina Yu. Petropavlovskaya, Maria N. Portnova, Olga V. Lukina and Andrey P. Litvinov
The paper considers the possibilities, prospects, and drawbacks of the mixed reality (MR) technology application using mixed reality smartglasses Microsoft HoloLens 2. The main challenge was to find and develop an approach that would allow surgeons to co...
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Xianfeng Xu, Hao Wang, Hui Sheng, Weilong Luo and Xinwei Wang
A robust approach is designed to evaluate the reference tilt angle (RTA) accurately and efficiently by local Gaussian fitting (LGF) for the distribution of one frequency peak on a spatial spectrum plane (SSP). The novel method proposed can avoid enlargin...
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David Blinder and Peter Schelkens
Computer-generated holography (CGH) is a notoriously difficult computation problem, simulating numerical diffraction, where every scene point can affect every hologram pixel. To tackle this challenge, specialized software instructions and hardware soluti...
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