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Journal articles on the topic 'Holographic image'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Fan, Fan, Xiaoyu Jiang, Xingpeng Yan, Jun Wen, Song Chen, Teng Zhang, and Chao Han. "Holographic Element-Based Effective Perspective Image Segmentation and Mosaicking Holographic Stereogram Printing." Applied Sciences 9, no. 5 (March 4, 2019): 920. http://dx.doi.org/10.3390/app9050920.

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Effective perspective image segmentation and mosaicking (EPISM) method is an effective holographic stereogram printing method, but a mosaic misplacement of reconstruction image occurred when focusing away from the reconstruction image plane. In this paper, a method known as holographic element-based effective perspective image segmentation and mosaicking is proposed. Holographic element (hogel) correspondence is used in EPISM method as pixel correspondence is used in direct-writing digital holography (DWDH) method to generate effective perspective images segments. The synthetic perspective ima

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Wang, Yu Tian, Dong Sheng Wang, and Wei Wei Pan. "The Analysis and Research on Digital Holography Signal Based on Wavelet Theory." Advanced Materials Research 216 (March 2011): 414–18. http://dx.doi.org/10.4028/www.scientific.net/amr.216.414.

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When introduce the wavelet theory to filter the hologram and the reconstructed image in the digital holography, the noise of the reconstructed image is greatly reduced. In the off-axis digital holography, the zero-order wave is decreased dramatically when after a wavelet filter, at the same time, the speckle noise is also reduced, and it turns out that the resolution of the reconstruction image is improved greatly. The system launches the research thoroughly on the three-dimensional body digital holographic technology, from the theory to the application, from the simulation to the experiment,

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Gizon, Laurent, Damien Fournier, Dan Yang, Aaron C. Birch, and Hélène Barucq. "Signal and noise in helioseismic holography." Astronomy & Astrophysics 620 (December 2018): A136. http://dx.doi.org/10.1051/0004-6361/201833825.

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Context. Helioseismic holography is an imaging technique used to study heterogeneities and flows in the solar interior from observations of solar oscillations at the surface. Holographic images contain noise due to the stochastic nature of solar oscillations. Aims. We aim to provide a theoretical framework for modeling signal and noise in Porter–Bojarski helioseismic holography. Methods. The wave equation may be recast into a Helmholtz-like equation, so as to connect with the acoustics literature and define the holography Green’s function in a meaningful way. Sources of wave excitation are ass

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Khan, Aamir, Zhang Zhijiang, Yingjie Yu, Muhammad Amir Khan, Ketao Yan, and Khizar Aziz. "GAN-Holo: Generative Adversarial Networks-Based Generated Holography Using Deep Learning." Complexity 2021 (January 21, 2021): 1–7. http://dx.doi.org/10.1155/2021/6662161.

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Current development in a deep neural network (DNN) has given an opportunity to a novel framework for the reconstruction of a holographic image and a phase recovery method with real-time performance. There are many deep learning-based techniques that have been proposed for the holographic image reconstruction, but these deep learning-based methods can still lack in performance, time complexity, accuracy, and real-time performance. Due to iterative calculation, the generation of a CGH requires a long computation time. A novel deep generative adversarial network holography (GAN-Holo) framework is

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Zhang, Tong, Ichirou Yamaguchi, and Hywel Morgan. "Digital Holographic Microscopy." Microscopy and Microanalysis 5, S2 (August 1999): 362–63. http://dx.doi.org/10.1017/s1431927600015130.

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We applied phase-shifting digital holography to microscopy in this paper. At first lensless microscopy is proposed, in which no optical adjustment is necessary. Then, the method is applied to relax the limitation of focal depth in traditional optical microscopy. A theory for image formation and experimental verification using a few specimens are described.keywords: microscopy, digital holography, phase shiftingDue to the finite focal depth of an imaging lens, a limitation to normal optical microscopy-is that, only the 2-dimensional (2-D) information of an object can be obtained at one time. Be

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Tahara, Tatsuki, Reo Otani, and Yasuhiro Takaki. "Wavelength-Selective Phase-Shifting Digital Holography: Color Three-Dimensional Imaging Ability in Relation to Bit Depth of Wavelength-Multiplexed Holograms." Applied Sciences 8, no. 12 (November 28, 2018): 2410. http://dx.doi.org/10.3390/app8122410.

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The quality of reconstructed images in relation to the bit depth of holograms formed by wavelength-selective phase-shifting digital holography was investigated. Wavelength-selective phase-shifting digital holography is a technique to obtain multiwavelength three-dimensional (3D) images with a full space-bandwidth product of an image sensor from wavelength-multiplexed phase-shifted holograms and has been proposed since 2013. The bit resolution required to obtain a multiwavelength holographic image was quantitatively and experimentally evaluated, and the relationship between wavelength resolutio

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Khan, Javed I., and David Y. Y. Yun. "Holographic image archive." Computerized Medical Imaging and Graphics 20, no. 4 (July 1996): 243–57. http://dx.doi.org/10.1016/s0895-6111(96)00017-1.

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8

Semenov, Vladimir. "Registration of the dispersed composition of aerosol media by the holographic method." E3S Web of Conferences 279 (2021): 02001. http://dx.doi.org/10.1051/e3sconf/202127902001.

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The article describes a device based on the holographic method for measuring the parameters of dispersed aerosols. In the proposed device, the measured particle is irradiated with two beams perpendicular to the main radiation axis, while the resulting holographic image in each of the projections gives an increased amount of information (in contrast to existing solutions) about the parameters of the particles. The information obtained is processed layer by layer using digital holography methods to form a volumetric representation of the aerosol under study, which significantly increases the inf

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9

Crenshaw. "The Dynamic Display of Art Holography." Arts 8, no. 3 (September 19, 2019): 122. http://dx.doi.org/10.3390/arts8030122.

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Holograms have been displayed in single-artist and group exhibitions, since the late 1960’s. The content within a holographic image can be greatly compromised if the hologram is not displayed correctly. Holography exhibitions can either enhance or diminish the impact of the images depending on how the exhibit layout and lighting are designed. This paper looks at art holography from the exhibition installation perspective and offers methods for assuring dynamic displays.

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Kochańska, Paula Adrianna, and Michal Makowski. "Compression of computer-generated holograms in image projection." Photonics Letters of Poland 9, no. 2 (July 1, 2017): 60. http://dx.doi.org/10.4302/plp.v9i2.719.

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Computer-generated holography is a technique of a lossless and lens-less forming of images. Methods that use local devices to compute such holograms are very power- and time-consuming. In order to make it possible to transfer the calculations to the cloud, it is necessary to elaborate efficient algorithms of a lossless compression. In this paper two methods of compression are presented and supported by both simulation and experimental results. A lossy compression method omitting certain bit-planes of the holographic data is also presented, which allows insignificant loss of information, while

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Zong, Hua, He Zhang, and Jinghui Qiu. "Accurate Imaging of Wide Beam Active Millimeter Wave Based on Angular Spectrum Theory and Simulation Verification." Photonics 8, no. 9 (September 17, 2021): 397. http://dx.doi.org/10.3390/photonics8090397.

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Due to the fact that a millimeter-wave (MMW) has a strong ability to penetrate clothing, MMW holographic imaging technology can conduct a non-contact inspection of the human body’s surface. In recent years, personnel surveillance systems utilizing MMW holographic imaging technology has achieved rapid progress. However, limited by MMW holographic imaging’s image quality, the existing imaging technology cannot accurately detect whether the human body carries hidden objects. Additionally, real-time inspection requirements cannot be practically satisfied, and the system cost is relatively high. In

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Shoydin, S. A. "Synthesis of holograms received by a communication channel." Computer Optics 44, no. 4 (August 2020): 547–51. http://dx.doi.org/10.18287/2412-6179-co-694.

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A method for the synthesis of holograms that reconstruct a 3D image using two 2D images, including a topographic map of the surface of a 3D object and photographs of the texture of its surface obtained using coherent and incoherent radiation is proposed. The method is suitable for transmitting information about a 3D object via a communication channel at a distance and subsequent synthesis of holograms at a distance from the holography object. It can be used in augmented reality devices, when creating holographic cameras and 3D video cameras, in 3D projectors and microscopes, devices with a syn

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Miyashita, Toyokatsu, and Hiroyuki Hashiguchi. "Superresolved Image Restoration of Multifrequency Holographic Images." Japanese Journal of Applied Physics 29, S1 (January 1, 1990): 221. http://dx.doi.org/10.7567/jjaps.29s1.221.

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Ko, Kathryn. "Superimposed holographic image—guided neurosurgery." Journal of Neurosurgery 88, no. 4 (April 1998): 777–81. http://dx.doi.org/10.3171/jns.1998.88.4.0777.

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✓ Computerized tomography scanning—derived narrow band reflection holograms of patients undergoing craniofacial procedures were created to evaluate the applicability of superimposing these three-dimensional images (3-D) on the operative field during neurological surgery. These sterilized radiological holograms were positioned over the surgical site by using bone sutures as registration points between the skull and the 3-D image to serve as a visual template between the patient and surgeon. Surgeries were then performed with the surgeon looking through the radiological hologram at the patient.

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SEUBERT, A., and K. HEINZ. "ITERATIVE IMAGE RECOVERY IN HOLOGRAPHIC LEED." Surface Review and Letters 09, no. 03n04 (June 2002): 1413–23. http://dx.doi.org/10.1142/s0218625x02003949.

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We report that the quality of atomic images reconstructed directly within the framework of holographic low energy electron diffraction can suffer from considerable atomic displacements. These are due to serious disturbances of the holographic object wave which exist when the object owns the same translational symmetry as the arrangement of beam splitters, for example when the latter induce a substrate reconstruction. We propose and test an iterative procedure for reducing these disturbances by a hybrid combination of the holographic reconstruction and some data fitting procedure. A reliable at

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LAUTERBORN, W., E. SCHMITZ, and A. JUDT. "EXPERIMENTAL APPROACH TO A COMPLEX ACOUSTIC SYSTEM." International Journal of Bifurcation and Chaos 03, no. 03 (June 1993): 635–42. http://dx.doi.org/10.1142/s0218127493000532.

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A liquid is subjected to sound of high intensity to generate a cloud of cavities or bubbles. The correlation between the sound output from the bubble cloud, which follows a subharmonic route to chaos with a low-dimensional strange attractor, and its spatial dynamics is investigated. Several approaches are used. In a light transmission experiment the light modulation resulting from the spatial dynamics gives an integrated measure similar to the acoustic output from a hydrophone. High speed photographic cinematography and, in particular, methods of high speed holographic cinematography are used

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Lee, Y. J., and J. H. Kim. "A Review of Holography Applications in Multiphase Flow Visualization Study." Journal of Fluids Engineering 108, no. 3 (September 1, 1986): 279–88. http://dx.doi.org/10.1115/1.3242575.

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Holographic techniques are used in many fields of science and engineering including flow observation. The purpose of this paper is to review applications of holography to multiphase flow study with emphasis on gas-solid and gas-liquid two-phase flows. The application of holography to multiphase flow has been actively explored in the areas of particle sizing in particulate flows and nuclei population measurements in cavitation study. It is also recognized that holography holds great potential as a means of visualizing dynamic situations inherent in multiphase flows. This potential has been demo

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Ren, Haoran, Wei Shao, Yi Li, Flora Salim, and Min Gu. "Three-dimensional vectorial holography based on machine learning inverse design." Science Advances 6, no. 16 (April 2020): eaaz4261. http://dx.doi.org/10.1126/sciadv.aaz4261.

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The three-dimensional (3D) vectorial nature of electromagnetic waves of light has not only played a fundamental role in science but also driven disruptive applications in optical display, microscopy, and manipulation. However, conventional optical holography can address only the amplitude and phase information of an optical beam, leaving the 3D vectorial feature of light completely inaccessible. We demonstrate 3D vectorial holography where an arbitrary 3D vectorial field distribution on a wavefront can be precisely reconstructed using the machine learning inverse design based on multilayer per

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Hinsch, K. D. "Holographic particle image velocimetry." Measurement Science and Technology 13, no. 7 (June 20, 2002): R61—R72. http://dx.doi.org/10.1088/0957-0233/13/7/201.

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Wu, Taihui, Jianshe Ma, Chengchen Wang, Haibei Wang, and Ping Su. "Full-Color See-Through Three-Dimensional Display Method Based on Volume Holography." Sensors 21, no. 8 (April 11, 2021): 2698. http://dx.doi.org/10.3390/s21082698.

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We propose a full-color see-through three-dimensional (3D) display method based on volume holography. This method is based on real object interference, avoiding the device limitation of spatial light modulator (SLM). The volume holography has a slim and compact structure, which realizes 3D display through one single layer of photopolymer. We analyzed the recording mechanism of volume holographic gratings, diffraction characteristics, and influencing factors of refractive index modulation through Kogelnik’s coupled-wave theory and the monomer diffusion model of photopolymer. We built a multiple

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Liu, Yulong, Shan Wu, Qi Xu, and Hubin Liu. "Holographic Projection Technology in the Field of Digital Media Art." Wireless Communications and Mobile Computing 2021 (May 18, 2021): 1–12. http://dx.doi.org/10.1155/2021/9997037.

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The advent of the digital age has given new forms and new connotations to artistic creation, and more and more digital media technologies have entered the stage of artistic creation and exhibitions. At present, holographic projection technology has become a hot application technology in the field of digital media art. The purpose of this paper is to explore the technical principles of holographic projection technology and its application in the field of digital media art, so as to provide suggestions for the application and promotion of holographic projection technology and the development and

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Wang, Jian Gang, Zhan Jun Yan, and Wen Qiang Li. "Optical Design of Waveguide Holographic Binocular Display for Machine Vision." Applied Mechanics and Materials 427-429 (September 2013): 763–69. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.763.

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A binocular display can satisfy competition mechanism of biological vision system and improve display precision. A binocular optical system is designed with waveguide holography (WGH) for small size and light weight. A superimposed holographic volume grating can split the image bearing lights into two equal intensity light beams. The out-coupling waveguide holographic gratings for the left and right eyes can implement image extension and imaging display. The simulation and experimental results reveal that excellent optical performances can be achieved for little distortion of less than 0.05%(n

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Tsang, Peter W. M., Jung-Ping Liu, Hoson Lam, and Ting-Chung Poon. "Enhancing the Quality of Sampled Phase-Only Hologram (SPOH) Based on Time-Division Comb Filtering." Applied Sciences 10, no. 8 (April 15, 2020): 2732. http://dx.doi.org/10.3390/app10082732.

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Generation of digital phase-only Fresnel holograms is an important research area in digital holography, as it leads to a substantial simplification of a holographic display system. However, the quality of the reconstructed image of a hologram without the magnitude component is heavily degraded. The problem can be reduced by down-sampling the intensity of an image prior to generating the hologram. The method, referred to as “sampled phase-only hologram” (SPOH) generation, results in reconstructed images that are masked with the pattern of the down-sampling lattice. This paper reports a novel, l

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Nienałtowski, Patryk, Maria Baczewska, and Małgorzata Kujawińska. "Comparison of fixed and living biological cells parameters investigated with digital holographic microscope." Photonics Letters of Poland 12, no. 1 (March 31, 2020): 13. http://dx.doi.org/10.4302/plp.v12i1.971.

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The statistical analysis and comparison of biophysical parameters of living and fixed, mouse embryonic fibroblasts cells are presented. The parameters are calculated based on phase measurements performed by means of a digital, holographic microscope. The phases are retrieved from off-axis, image plane holograms, followed by custom image segmentation and statistical analysis of cells’ surface, phase volume and dry mass. The results indicated statistically significant differences between fixed and living cell parameters, which is an important message for setting methodology for further diagnosis

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SALDIN, D. K. "HOLOGRAPHIC CRYSTALLOGRAPHY FOR SURFACE STUDIES: A REVIEW OF THE BASIC PRINCIPLES." Surface Review and Letters 04, no. 03 (June 1997): 441–57. http://dx.doi.org/10.1142/s0218625x97000432.

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In this paper, we review the basic principles of the technique of holographic crystallography (HXT) for surface studies. We discuss the appropriateness of the use of the term "holography" in this field in the light of its relation to other branches of that subject. We compare the effects of multiple scattering and the anisotropies of the reference and object waves on the computer reconstruction of images in HXT. We note that the twin-image problem of conventional holography is a direct consequence of the fact that the hologram is recorded on a two-dimensional surface. Like optical volume holog

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Lin, Kuang Tsan, and Sheng Lih Yeh. "Hiding a Covert Digital Image by Assembling the RSA Encryption Method and the Binary Encoding Method." Mathematical Problems in Engineering 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/603659.

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The Rivest-Shamir-Adleman (RSA) encryption method and the binary encoding method are assembled to form a hybrid hiding method to hide a covert digital image into a dot-matrix holographic image. First, the RSA encryption method is used to transform the covert image to form a RSA encryption data string. Then, all the elements of the RSA encryption data string are transferred into binary data. Finally, the binary data are encoded into the dot-matrix holographic image. The pixels of the dot-matrix holographic image contain seven groups of codes used for reconstructing the covert image. The seven g

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Cheng, Yih-Shyang, and Ray-Cheng Chang. "Image-plane cylindrical holographic stereogram." Applied Optics 39, no. 23 (August 10, 2000): 4058. http://dx.doi.org/10.1364/ao.39.004058.

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Shimobaba, Tomoyoshi, Yutaka Endo, Ryuji Hirayama, Yuki Nagahama, Takayuki Takahashi, Takashi Nishitsuji, Takashi Kakue, et al. "Autoencoder-based holographic image restoration." Applied Optics 56, no. 13 (February 17, 2017): F27. http://dx.doi.org/10.1364/ao.56.000f27.

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Shen, X. A., E. Chiang, and R. Kachru. "Time-domain holographic image storage." Optics Letters 19, no. 16 (August 15, 1994): 1246. http://dx.doi.org/10.1364/ol.19.001246.

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Kou, Shan Shan, and Colin J. R. Sheppard. "Image formation in holographic tomography." Optics Letters 33, no. 20 (October 14, 2008): 2362. http://dx.doi.org/10.1364/ol.33.002362.

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Bruckstein, Alfred M., Robert J. Holt, and Arun N. Netravali. "Low discrepancy holographic image sampling." International Journal of Imaging Systems and Technology 15, no. 3 (2005): 155–67. http://dx.doi.org/10.1002/ima.20051.

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Bryanston-Cross, P. J., M. Funes-Gallanzi, C. Quan, and T. R. Judge. "Holographic particle image velocimetry (HPIV)." Optics & Laser Technology 24, no. 5 (October 1992): 251–56. http://dx.doi.org/10.1016/0030-3992(92)90066-b.

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Bruckstein, Alfred Marcel, Martianus Frederic Ezerman, Adamas Aqsa Fahreza, and San Ling. "Patch-Based Holographic Image Sensing." SIAM Journal on Imaging Sciences 14, no. 1 (January 2021): 198–223. http://dx.doi.org/10.1137/20m1324041.

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Weierstall, U., X. M. Huang, and J. C. H. Spence. "Twin Image Suppression and Field Inhomogeneity in In-Line Electron Holography." Microscopy and Microanalysis 3, S2 (August 1997): 1143–44. http://dx.doi.org/10.1017/s1431927600012605.

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Several methods have been suggested for elliminating the twin image in in-line holography, including Franhofer holography as used in our previous work, integration over focus, integration over wavelength, integration over lateral source position and recursion methods such as Gerchberg-Saxton or Fienup (see for all refs.). Fraunhofer holography requires the Fresnel number N =, with d the object size. The integration methods depend on the fact that the real and virtual images have different dependencies on some parameter such as focus, and have proved powerful in photoemission holographic diffra

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Hei Hung, Fan, and Y. Lam Edmund. "Object Alignment with Refocused Image Using Off-Axis Digital Holography." Electronic Imaging 2021, no. 6 (January 18, 2021): 335–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.6.iriacv-335.

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In the semiconductor industry, the integrated circuit density is getting higher, which leads to a smaller margin of error for the bonding process. Therefore, accurate adjustments before bonding are often necessary. An accurate image alignment under a vision system is usually required to fine-tune the bonding position. However, a considerable depth of focus is sacrificed for sufficient resolution of the object, limiting the optics operation range. Digital holographic microscopy with digital refocusing is applied as an enhancement to extend the depth of focus. The proposed algorithm merges the i

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Lee, Jonghyun, Youngrok Kim, Kihong Choi, Joonku Hahn, Sung-Wook Min, and Hwi Kim. "Digital Incoherent Compressive Holography Using a Geometric Phase Metalens." Sensors 21, no. 16 (August 20, 2021): 5624. http://dx.doi.org/10.3390/s21165624.

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We propose a compressive self-interference incoherent digital holography (SIDH) with a geometric phase metalens for section-wise holographic object reconstruction. We specify the details of the SIDH with a geometric phase metalens design that covers the visible wavelength band, analyze a spatial distortion problem in the SIDH and address a process of a compressive holographic section-wise reconstruction with analytic spatial calibration. The metalens allows us to realize a compressive SIDH system in the visible wavelength band using an image sensor with relatively low bandwidth. The operation

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SALDIN, D. K., X. CHEN, J. A. VAMVAKAS, M. OTT, H. WEDLER, K. REUTER, K. HEINZ, and P. L. DE ANDRES. "HOLOGRAPHIC LEED: A REVIEW OF RECENT PROGRESS." Surface Review and Letters 04, no. 05 (October 1997): 991–1001. http://dx.doi.org/10.1142/s0218625x97001176.

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We review the basic ideas of holographic LEED, and the latest progress in the field. We compare several proposed computer reconstruction schemes. Using experimental diffuse LEED data from O/Ni(001) and K/Ni(001) surfaces, we show that the capability now exists for filtering out the effects on the diffraction patterns of possible long-range order amongst the adsorbates, thus making holographic LEED much more analogous to photoelectron holography. Inclusion of a scattered-wave kernel to compensate for the variation of the magnitude of the reference wave at the positions of potential object-wave

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Baba, Shigeyuki, Shinichi Yoshimura, and Nobuhiro Kihara. "Inter-frame Image Processing Method for Recovering Holographic Images." Japanese Journal of Applied Physics 45, no. 2B (February 24, 2006): 1258–65. http://dx.doi.org/10.1143/jjap.45.1258.

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Zhuang, Kaige, and Zhijun Xue. "Public Information Dissemination Using Data Mining-Enabled Image Enhancement and Internet of Things." Mobile Information Systems 2021 (July 31, 2021): 1–8. http://dx.doi.org/10.1155/2021/2489313.

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With the development of the Internet of Things, the requirement of a wide range of human-centered services may now make use of as many computing resources for media technologies and holographic images. The IoT system can monitor the status of equipment in real-time with a robust infrared image recognition algorithm. However, few researchers discuss data mining on images with valuable information. In this study, we present a generic approach that is based on the mining decision tree and holographic image improvement data analysis. We employed advanced data mining techniques to achieve image sta

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Kim, Jinwoong, Yongjun Lim, Keehoon Hong, Hayan Kim, Hyun-Eui Kim, Jeho Nam, Joongki Park, Joonku Hahn, and Young-ju Kim. "Electronic Tabletop Holographic Display: Design, Implementation, and Evaluation." Applied Sciences 9, no. 4 (February 18, 2019): 705. http://dx.doi.org/10.3390/app9040705.

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Most of the previously-tried prototype systems of digital holographic display are of front viewing flat panel-type systems having narrow viewing angle, which do not meet expectations towards holographic displays having more volumetric and realistic 3-dimensional image rendering capability. We have developed a tabletop holographic display system which is capable of 360° rendering of volumetric color hologram moving image, looking much like a real object. Multiple viewers around the display can see the image and perceive very natural binocular as well as motion parallax. We have previously publi

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Takahashi, Takayuki, Tomoyoshi Shimobaba, Takashi Kakue, and Tomoyoshi Ito. "Time-Division Color Holographic Projection in Large Size Using a Digital Micromirror Device." Applied Sciences 11, no. 14 (July 7, 2021): 6277. http://dx.doi.org/10.3390/app11146277.

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Holographic projection is a simple projection as it enlarges or reduces reconstructed images without using a zoom lens. However, one major problem associated with this projection is the deterioration of image quality as the reconstructed image enlarges. In this paper, we propose a time-division holographic projection, in which the original image is divided into blocks and the holograms of each block are calculated. Using a digital micromirror device (DMD), the holograms were projected at high speed to obtain the entire reconstructed image. However, the holograms on the DMD need to be binarized

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Chenliang Chang, Chenliang Chang, Yijun Qi Yijun Qi, Jun Wu Jun Wu, Jun Xia Jun Xia, and Shouping Nie Shouping Nie. "Image magnified lensless holographic projection by convergent spherical beam illumination." Chinese Optics Letters 16, no. 10 (2018): 100901. http://dx.doi.org/10.3788/col201816.100901.

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Tiziani, H. J., and G. Pedrini. "Digital Double-Pulse Holographic Interferometry for Vibration Analysis." Shock and Vibration 3, no. 2 (1996): 117–25. http://dx.doi.org/10.1155/1996/231793.

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Different arrangements for double-pulsed holographic and speckle interferometry for vibration analysis will be described. Experimental results obtained with films (classical holographic interferometry) and CCD cameras (digital holographic interferometry) as storage materials are presented. In digital holography, two separate holograms of an object under test are recorded within a few microseconds using a CCD camera and are stored in a frame grabber. The phases of the two reconstructed wave fields are calculated from the complex amplitudes. The deformation is obtained from the phase difference.

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Sun, H., P. W. Benzie, N. Burns, D. C. Hendry, M. A. Player, and J. Watson. "Underwater digital holography for studies of marine plankton." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 366, no. 1871 (January 25, 2008): 1789–806. http://dx.doi.org/10.1098/rsta.2007.2187.

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Conventional and digital holographies are proving to be increasingly important for studies of marine zooplankton and other underwater biological applications. This paper reports on the use of a subsea digital holographic camera (eHoloCam) for the analysis and identification of marine organisms and other subsea particles. Unlike recording on a photographic film, a digital hologram (e-hologram) is recorded on an electronic sensor and reconstructed numerically in a computer by simulating the propagation of the optical field in space. By comparison with other imaging techniques, an e-hologram has

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Zhou, Hao, Ji Hua Gu, and Da Qing Chen. "Multi-Plane 3-D Holographic Image Fusion in DCT Domain." Advanced Materials Research 760-762 (September 2013): 572–76. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.572.

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An improved multi-plane imaging fusion algorithm for 3-D digital holography is presented. Multiple reconstructed images at different distances from single off-axis Fresnel digital hologram are fused using discrete cosine transform (DCT) with different blocks. The zero order term is removed using a Laplacian operator while the conjugate image and dispersed images of defocused objects are eliminated by selecting a simple rectangular window before image fusion. Compared with those fused images obtained directly from the reconstructed images, the fused images qualities are greatly improved and all

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Kelly, Damien P., David S. Monaghan, Nitesh Pandey, Tomasz Kozacki, Aneta Michałkiewicz, Grzegorz Finke, Bryan M. Hennelly, and Malgorzata Kujawinska. "Digital Holographic Capture and Optoelectronic Reconstruction for 3D Displays." International Journal of Digital Multimedia Broadcasting 2010 (2010): 1–14. http://dx.doi.org/10.1155/2010/759323.

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The application of digital holography as a viable solution to 3D capture and display technology is examined. A review of the current state of the field is presented in which some of the major challenges involved in a digital holographic solution are highlighted. These challenges include (i) the removal of the DC and conjugate image terms, which are features of the holographic recording process, (ii) the reduction of speckle noise, a characteristic of a coherent imaging process, (iii) increasing the angular range of perspective of digital holograms (iv) and replaying captured and/or processed d

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Wu, Pei-Jung, Chih-Hao Chuang, Chien-Yu Chen, Jeng-Han Wu, and Bor-Shyh Lin. "An Augmented Reality Head-Up Display System with a Wide-View Eyebox." International Journal of Optics 2020 (June 30, 2020): 1–9. http://dx.doi.org/10.1155/2020/4719268.

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This study proposes to apply the combination of two 90-degree prisms and a holographic optical element to an image-dividing element, divide an image into three through the virtual image projection system, and accurately project the images to 160 cm behind the windshield. In order to distinguish the left image, middle image, and right image at the horizontal direction, the 90-degree prism is first utilized for horizontally deflecting the light, a holographic optical element is then used for presenting the vertical deflection of the image, and finally, the images are horizontally arranged as a r

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Seo, Wontaek, Hoon Song, Jungkwuen An, Juwon Seo, Geeyoung Sung, Yun-Tae Kim, Chil-Sung Choi, et al. "Image Quality Assessment for Holographic Display." Electronic Imaging 2017, no. 12 (January 29, 2017): 186–90. http://dx.doi.org/10.2352/issn.2470-1173.2017.12.iqsp-241.

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Wang Ying-Li, Yao Bao-Li, Chen Yi, Fan Mei-Gong, Zheng Yuan, Menke Nei-Mu-Le, Lei Ming, et al. "Polarization holographic image storage with indolylfulgimide." Acta Physica Sinica 53, no. 1 (2004): 66. http://dx.doi.org/10.7498/aps.53.66.

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Huebschman, Michael L., Bala Munjuluri, and Harold R. Garner. "Dynamic holographic 3-D image projection." Optics Express 11, no. 5 (March 10, 2003): 437. http://dx.doi.org/10.1364/oe.11.000437.

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