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Computer generation of binary Fresnel holography
Applied Optics, 2011Binarization of Fresnel holograms by direct thresholding based on the polarity of the fringe pattern is studied. It is found that if the hologram is binarized (i.e., for black and white hologram pixels) in this manner, only the edges of the object are preserved in the reconstructed image. To alleviate the errors caused by binarization, the use of error
Tsang, Peter +3 more
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Holography, speckle, and computers
Optics and Lasers in Engineering, 2003Surveys are presented on automatic and quantitative deformation measurements using CCDs and computers in holographic interferometry and speckle metrology for diffusely reflecting surfaces. For delivering relationships between object deformation and observed quantities, we discuss formations of fringes and signals observed in these methods in terms of ...
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Haptic holography: a primitive computational plastic
Proceedings of the IEEE, 2003We describe our work on haptic holography, a combination of computational modeling and multimodal spatial display, which allows a person to see, feel, and interact with three-dimensional freestanding holographic images of material surfaces. In this paper, we combine various holographic displays with a force-feedback device to render multimodal images ...
Wendy Plesniak +2 more
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Overview of Computer Holography
2020Techniques in computer holography are summarized and briefly over-viewed in this chapter. Several steps are commonly required for creating a large-scale CGH to display vivid 3D images. This chapter deals with the procedure. We also survey other techniques than those explained after this chapter in this book.
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Computer generated holography for computer graphics
2011 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON), 20113D displays are now rapidly designed, enhanced and sold. It is expected that after a boom of displays based on active glasses, new display generations will appear. Those would be probably displays with passive glasses, multiview autostereoscopic displays based on parallax barrier or lenticular technology, and displays based on integral photography ...
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Computer holography meets quantum computing
Optica Imaging Congress 2025 (3D, DH, COSI, IS, pcAOP,RadIT)Hologram calculations present a significant bottleneck for future holographic displays demanding extensive fields of view and wide viewing angles. To address this challenge, this study proposes quantum computer-generated holography.
Tomoyoshi Shimobaba +4 more
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Computer Simulation of Differential Digital Holography
2009This paper presents a complete procedure of the differential digital holography process. The method is based on digital hologram construction and reconstruction. Holograms and reconstructs are calculated by applying Fourier Transformation on bitmap images. The elaborated algorithm allows amplification of small differences between two images of the same
Peko, Marina +3 more
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4K-DMDNet: Diffraction Model-Driven Network for 4K Computer-Generated Holography
Opto-Electronic Advances, 2023Zehao He, Liangcai Cao, Kexuan Liu
exaly