Incoherent computer-generated holography

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August undefined, 2024

WebWhat is claimed is: 1. A metrology method for determining the manufacturing quality of an object under inspection, comprising: recording, using a FINCH camera controlled by a computer comprising one or more processors, an incoherent FINCH hologram of an object at a single focal position; deriving, using the one or more processors, three-dimensional … WebAug 23, 2012 · Incoherent Computer-Generated Holography for 3D Color Imaging and Display Toyohiko Yatagai , Utsunomiya University, Center for Optical Research and …

Incoherent computer-generated holography - Optica

WebApr 11, 2024 · We present a method for computer-generated holography (CGH) in which different images are reproduced on both sides of a hologram with a single illumination … WebJan 1, 2024 · Incoherent digital holography systems have come into prominence because of the several advantages they possess over their coherent counterparts, ... Efficient design of direct-binary-search computer-generated holograms. J Opt Soc Am A, 8 (4) (1991), pp. 652-660. View in Scopus Google Scholar [24] east off road

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WebUsually, a CGH is referred to as a hologram that is synthesized in the com- puter from a virtual object and that is reconstructed optically by illuminating it with a light source of a certain type (e.g., a laser). WebHolography is usually considered as the ultimate way to visually reproduce a three-dimensional scene. Computer-generated holography constitutes an important branch of holography, which enables visualization of artificially generated scenes as well as real three-dimensional scenes recorded under white-light illumination. WebMay 1, 2024 · We propose an incoherent encoding system for image encryption utilizing the coded aperture correlation holography (COACH) technique. Incoherent imaging is the core component of this proposal, in which the point spread hologram (PSH) of the imaging system serves as the main key to encode the input intensity distribution. east offshore marine plan

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WebIncoherent Computer-generated Holography for 3-D Color Imaging and Display 6. Approaches to overcome the Resolution Problem in Incoherent Digital Holography 7. Managing Digital Holograms and the Numerical Reconstruction Process for Focus Flexibility 8. Three-dimensional Particle Control by Holographic Optical Tweezers 9. WebApr 12, 2024 · Current methods to minimize cross-talk in holograms include random vector-based computer-generated holography (RV-CGH), which also introduces a random factor but does so manually, embedding random phase masks onto the wavefront modulator. USTC's scattering-medium approach produces superior depth-control, by greatly reducing … east offshore marine plan areaWebAug 23, 2012 · Incoherent Computer-Generated Holography for 3D Color Imaging and Display. Toyohiko Yatagai, Utsunomiya University, Center for Optical Research and Education, Yoto 7-1-2, Utsunomiya Tochigi 321-8585, Japan. Search for more papers by this author. Yusuke Sando, culver city official website

"Webapplied sciences Review Incoherent Digital Holography: A Review Jung-Ping Liu 1, Tatsuki Tahara 2,3, Yoshio Hayasaki 4 and Ting-Chung Poon 1,5,* 1 Department of Photonics, … " - Incoherent computer-generated holography

Incoherent computer-generated holography

Frontiers Deep-Learning Computational Holography: A Review

WebIn this study, a postprocessing approach is developed, where synthetic PSFs capable of introducing special beam characteristics when processed with the object intensity are generated using an iterative algorithm. The method is applied to generate edge-enhanced images in both CAI as well as Fresnel incoherent correlation holography methods. WebComputer-generated holograms and holographic 3D measurements (digital holography) can be realized by simulating this physical process on a computer. Computer-generated …

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WebAug 1, 2024 · Europe PMC is an archive of life sciences journal literature. WebTopic areas include interferometry, quantitative phase imaging, transport of intensity methods, 3D imaging and display systems including VR/AR, computer generated holograms, metasurface holograms, digital holography with various light sources including coherent to incoherent and X-ray to terahertz waves, polarization and dynamic holography ...

WebSep 14, 2024 · One such well-established incoherent digital holography system called Fresnel incoherent correlation holography (FINCH) 14 makes use of the digital signal processing and self-referencing... WebFresnel-type diffractive optical elements (DOEs) for general beam shaping of monochromatic, spatially incoherent light are demonstrated. Direct and indirect methods, i.e., adding a lens' phase to the designed Fraunhofer-type DOEs, are used for the design. The indirect method can reduce the calculation time by approximately half without loss of …

WebDespite recent progress in optical systems and algorithms for computer-generated holography (CGH) (3), a fundamental challenge in making holography a practical alternative to conventional display technology is the speckle created by the co- herent light sources used by virtually all holographic displays. WebSince a general flat hologram has a limited viewable area, we usually cannot see the other side of a reconstructed object. There are some holograms that can solve this problem. A cylindrical hologram is well known to be viewable in 360 deg. Most cylindrical holograms are optical holograms, but there are few reports of computer-generated cylindrical holograms.

WebJul 26, 2024 · The spatial incoherence removes speckle noise in CGH, and the temporal incoherence simplifies the optical setup, including the light source. We demonstrate two- and three-dimensional color image reproductions by a two-layer grayscale hologram …

WebOct 3, 2024 · An incoherent hologram is generated by the sum of interference intensity patterns between the two spherical waves from the two images. They are emitted from … culver city on map east of harmony island osrsWebApr 11, 2024 · Incoherent computer-generated holography. Ryutaro Suda, Makoto Naruse, and Ryoichi Horisaki. Opt. Lett. 47(15) 3844-3847 (2024) Fourier-inspired neural module for real-time and high-fidelity computer-generated holography. Zhenxing Dong, Chao Xu, Yuye Ling, Yan Li, and Yikai Su. culver city office rentalComputer-generated holography (CGH) is the method of digitally generating holographic interference patterns. A holographic image can be generated e.g. by digitally computing a holographic interference pattern and printing it onto a mask or film for subsequent illumination by suitable coherent light source. Alternatively, the holographic image can be brought to life by a holographic 3D display (a display … culver city on california mapWebSingle-shot lensless imaging with fresnel zone aperture and incoherent illumination. ... Non-iterative phase hologram generation with optimized phase modulation. ... Scaling of Three-Dimensional Computer-Generated Holograms with Layer-Based Shifted Fresnel Diffraction. east of great dividing rangeWebFeb 1, 2024 · Incoherent digital holography (IDH) is an optical technique of 3D imaging with a single sensor. 3D information of a light wave is recorded using light interference. A … culver city one medicalWebNov 12, 2024 · Computer-generated holography (CGH) holds transformative potential for a wide range of applications, including direct-view, virtual and augmented reality, and … culver city one bedroom