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Articoli di riviste sul tema "Art and holography"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 agosto 2024

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1

Crenshaw. "The Dynamic Display of Art Holography". Arts 8, n. 3 (19 settembre 2019): 122. http://dx.doi.org/10.3390/arts8030122.

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Abstract (sommario):

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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2

Desbiens, Jacques. "The Dispositif of Holography". Arts 8, n. 1 (26 febbraio 2019): 28. http://dx.doi.org/10.3390/arts8010028.

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The French word dispositif, applied to visual art, encompasses several components of an artwork, such as the apparatus itself as well as its display conditions and the viewers themselves. In this article, I examine the concept of dispositif in the context of holography and, in particular, synthetic holography (computer-generated holography). This analysis concentrates on the holographic space and its effects on time and colors. A few comparisons with the history of spatial representation allow us to state that the holographic dispositif breaks with the perspective tradition and opens a new field of artistic research and experimentation.

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3

Pepper, Andrew. "The Gallery as a Location for Research-Informed Practice and Critical Reflection". Arts 8, n. 4 (27 settembre 2019): 126. http://dx.doi.org/10.3390/arts8040126.

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Creative holography could still be considered a fringe medium or methodology, compared to mainstream art activities. Unsurprisingly, work using this technology continues to be shown together with other holographic works. This paper examines the merits of exhibiting such works alongside other media. It also explores how this can contribute to the development of a personal critical framework and a broader analytical discourse about creative holography. The perceived limitations of showing holograms in a “gallery ghetto” are explored using early critical art reviews about these group exhibitions. An international exhibition, which toured the United Kingdom (UK) and Australia, is used as a framework to expand the discussion. These exhibitions include examples of the author’s holographic work and those of artists working with other (non-holographic) media and approaches. The touring exhibition as a transient, research-informed process is investigated, as is its impact on the critical development of work using holography as a valid medium, approach, and methodology in the creative arts.

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4

Alonso Blanco, Angel. "El holograma como Experiencia Artística". Barcelona Investigación Arte Creación 4, n. 2 (2 giugno 2016): 168. http://dx.doi.org/10.17583/brac.2016.1700.

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Holography has been used as a way of artistic expression, but it has little presence in art events, neither in articles about holographic woks in specialized magazines are very common, although valuable creators have experienced it, since the catalán Salvador Dalí to the american Bruce Nauman.This text explorer the cause of this poor presence. It’s strange that something so attractive and visually rich (also simbolically) is not visible in our historical moment, characterized by the voracity of convert in artistic resource any possible element.After research about the development of holographyc on the field of art, I formed a hypothesis about the reasons of their limited presence: The lack of synergy between scientific institutions and those dedicated to art, the disinterest of the commissioners and the lack of information. It is not enough whit the objects that are produced by isolated artists in their studios, art is a system of relationships where the work is involved as an other element of a structure.

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5

John, Pearl. "The Silent Researcher Critique: A New Method for Obtaining a Critical Response to a Holographic Artwork". Arts 8, n. 3 (10 settembre 2019): 117. http://dx.doi.org/10.3390/arts8030117.

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The purpose of this article is to provide a plausible answer as to whether the Z-axis of holographic space can be used to depict a chronological narrative with an affective impact. This article describes a practice-based holographic arts study in which the author created interactive artworks with family photographs taken from the late 1800s to the present day, and stacked them in chronological order within the Z-axis of holographic space. The artworks were evaluated by different audiences to determine whether the viewer could perceive the new application of holographic space, and whether the artwork had an affective impact. An art critique method used both in Higher Education settings in the UK and in professional art practice, was adapted as a research tool for use in this study and termed ‘the silent researcher critique’. The findings of the project were that audiences had a new experience when interacting with the works and were impacted emotionally by them, however only a group of experts in art and holography were able to identify and comprehend the new conceptual use of the Z-axis of holographic space. This study’s value can be measured by its offering practice-based arts researchers a novel method of obtaining valuable critical feedback from peers and by its contribution to the aesthetic development of the medium of art holography.

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6

Benyon, Margaret, e John Webster. "Pulsed Holography as Art". Leonardo 19, n. 3 (1986): 185. http://dx.doi.org/10.2307/1578235.

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7

Richardson, Martin. "Mixed Media: Holography within Art". Leonardo 20, n. 3 (1987): 251. http://dx.doi.org/10.2307/1578168.

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8

Barilleaux, René Paul, e Rene Paul Barilleaux. "Holography and the Art World". Leonardo 25, n. 5 (1992): 417. http://dx.doi.org/10.2307/1575746.

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9

Murray, Kevin. "Art in Holography2 Postcard collection, edited by Patrick Boyd. International Congress on Art in Holography ." Leonardo 34, n. 1 (febbraio 2001): 83. http://dx.doi.org/10.1162/leon.2001.34.1.83a.

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10

Corda, Roberto, Daniele Giusto, Antonio Liotta, Wei Song e Cristian Perra. "Recent Advances in the Processing and Rendering Algorithms for Computer-Generated Holography". Electronics 8, n. 5 (17 maggio 2019): 556. http://dx.doi.org/10.3390/electronics8050556.

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Abstract (sommario):

Digital holography represents a novel media which promises to revolutionize the way the users interacts with content. This paper presents an in-depth review of the state-of-the-art algorithms for advanced processing and rendering of computer-generated holography. Open-access holographic data are selected and characterized as references for the experimental analysis. The design of a tool for digital hologram rendering and quality evaluation is presented and implemented as an open-source reference software, with the aim to encourage the approach to the holography research area, and simplify the rendering and quality evaluation tasks. Exploration studies focused on the reproducibility of the results are reported, showing a practical application of the proposed architecture for standardization activities. A final discussion on the results obtained is reported, also highlighting the future developments of the reconstruction software that is made publicly available with this work.

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11

Coyle, Rebecca. "'Is It Art Yet?' Art in Holography, Take 2". Convergence: The International Journal of Research into New Media Technologies 3, n. 1 (marzo 1997): 126–30. http://dx.doi.org/10.1177/135485659700300111.

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12

Pepper, Andrew. "Comments on "Pulsed Holography as Art"". Leonardo 20, n. 2 (1987): 207. http://dx.doi.org/10.2307/1578356.

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13

Murray, Rod. "Holography Course, Royal College of Art". Leonardo 24, n. 4 (1991): 481. http://dx.doi.org/10.2307/1575528.

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14

Parker, Julie Walker. "Exploring Holography through Science and Art". Leonardo 25, n. 5 (1992): 487. http://dx.doi.org/10.2307/1575761.

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15

Jeong, T. H. "Art-science, beauty-reason and holography". Journal of Physics: Conference Series 415 (22 febbraio 2013): 012062. http://dx.doi.org/10.1088/1742-6596/415/1/012062.

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16

Abbasi, Hamed, Talie Zarei, Neda Jalali Farahani e Adeleh Granmayeh Rad. "Studying the Recent Improvements in Holograms for Three-Dimensional Display". International Journal of Optics 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/519012.

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Abstract (sommario):

Displayers tend to become three-dimensional. The most advantage of holographic 3D displays is the possibility to observe 3D images without using glasses. The quality of created images by this method has surprised everyone. In this paper, the experimental steps of making a transmission hologram have been mentioned. In what follows, current advances of this science-art will be discussed. The aim of this paper is to study the recent improvements in creating three-dimensional images and videos by means of holographic techniques. In the last section we discuss the potentials of holography to be applied in future.

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17

Dinsmore, Sydney. "Reviewing the Inclusion of Artists’ Holograms in the Permanent Collections of Fine Art Museums". Arts 8, n. 4 (4 novembre 2019): 147. http://dx.doi.org/10.3390/arts8040147.

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Opening in 1976 with the exhibition, “Through the Looking Glass”, the Museum of Holography (MOH) emphasized from the beginning the importance of artistic holography with the inclusion of several holograms by artists whose primary practice was holography, articulating for the first time a distinction between artists, scientists and technicians. While the scientific and engineering principles underlying the technology could educate a public, holograms made by artists provided the visual syntax for the creative possibilities holography could offer. The MOH continued to encourage and support artists’ work throughout its history, amassing a large collection of holograms representative of the most prolific period of artistic activity from the mid 1970s to the mid 1980s. The Massachusetts Institute of Technology Museum (MIT Museum) in Boston acquired the entire archive including artistic and technical holograms as well as all related materials when the MOH closed in 1992. This paper will seek to explore whether the medium of holography within the visual arts has led to fine art museum acquisitions in the intervening decades.

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18

Jacquot, Maxime, Jesus Brito Carcano, Remo Giust e Luc Froehly. "I learned it through the hologram". Photoniques, n. 119 (2023): 31–35. http://dx.doi.org/10.1051/photon/202311931.

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Abstract (sommario):

Holography is an advanced coherent imaging technique that records and reproduces 3D images using the principles of interference and diffraction. It finds numerous applications in fields such as biomedicine, engineering, art, and microscopy. Teaching holography at university provides students with a unique opportunity to learn more about optical physics. Moreover, it fosters creativity and innovation, as students can explore the potential of Digital Holography for their own future research.

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19

Barilleaux, Rene Paul. "Comments on "Mixed Media: Holography within Art"". Leonardo 21, n. 1 (1988): 110. http://dx.doi.org/10.2307/1578453.

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20

Cvetkovich, Thomas. "Holography at the Butler Institute of American Art". Journal of Physics: Conference Series 415 (22 febbraio 2013): 012016. http://dx.doi.org/10.1088/1742-6596/415/1/012016.

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21

Hirahara, Hiroyuki. "W05-(3) The Art of Digital Holography Measurements". Reference Collection of Annual Meeting 2005.8 (2005): 310–11. http://dx.doi.org/10.1299/jsmemecjsm.2005.8.0_310.

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22

Hui, Sam C. M., e Helmut F. O. Müller. "Holography: Art and Science of light in Architecture". Architectural Science Review 44, n. 3 (settembre 2001): 221–26. http://dx.doi.org/10.1080/00038628.2001.9697476.

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23

Rosen, Joseph, Simon Alford, Vijayakumar Anand, Jonathan Art, Petr Bouchal, Zdeněk Bouchal, Munkh-Uchral Erdenebat et al. "Roadmap on Recent Progress in FINCH Technology". Journal of Imaging 7, n. 10 (29 settembre 2021): 197. http://dx.doi.org/10.3390/jimaging7100197.

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Fresnel incoherent correlation holography (FINCH) was a milestone in incoherent holography. In this roadmap, two pathways, namely the development of FINCH and applications of FINCH explored by many prominent research groups, are discussed. The current state-of-the-art FINCH technology, challenges, and future perspectives of FINCH technology as recognized by a diverse group of researchers contributing to different facets of research in FINCH have been presented.

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24

임수연. "Analyzing the space in Holography Art considering Expressional Characteristics". Journal of Digital Design 12, n. 4 (ottobre 2012): 155–63. http://dx.doi.org/10.17280/jdd.2012.12.4.015.

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25

Bainier, Claudine, e Gilbert Tribillon. "Holography and Art in a Research Laboratory: A Retrospective". Leonardo 22, n. 3/4 (1989): 349. http://dx.doi.org/10.2307/1575393.

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26

Cho, Duck Hee. "Holography and Art – Using rainbow hologram in my works". Journal of Physics: Conference Series 415 (22 febbraio 2013): 012069. http://dx.doi.org/10.1088/1742-6596/415/1/012069.

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27

Bartram, Angela. "When the Image Takes over the Real: Holography and Its Potential within Acts of Visual Documentation". Arts 9, n. 1 (15 febbraio 2020): 24. http://dx.doi.org/10.3390/arts9010024.

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Abstract (sommario):

In Camera Lucida, Roland Barthes discusses the capacity of the photographic image to represent “flat death”. Documentation of an event, happening, or time is traditionally reliant on the photographic to determine its ephemeral existence and to secure its legacy within history. However, the traditional photographic document is often unsuitable to capture the real essence and experience of the artwork in situ. The hologram, with its potential to offer a three-dimensional viewpoint, suggests a desirable solution. However, there are issues concerning how this type of photographic document successfully functions within an art context. Attitudes to methods necessary for artistic production, and holography’s place within the process, are responsible for this problem. The seductive qualities of holography may be attributable to any failure that ensues, but, if used precisely, the process can be effective to create a document for ephemeral art. The failures and successes of the hologram to be reliable as a document of experience are discussed in this article, together with a suggestion of how it might undergo a transformation and reactivation to become an artwork itself.

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28

Olivieri, Marco, Mirco Pezzoli, Fabio Antonacci e Augusto Sarti. "A Physics-Informed Neural Network Approach for Nearfield Acoustic Holography". Sensors 21, n. 23 (25 novembre 2021): 7834. http://dx.doi.org/10.3390/s21237834.

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In this manuscript, we describe a novel methodology for nearfield acoustic holography (NAH). The proposed technique is based on convolutional neural networks, with autoencoder architecture, to reconstruct the pressure and velocity fields on the surface of the vibrating structure using the sampled pressure soundfield on the holographic plane as input. The loss function used for training the network is based on a combination of two components. The first component is the error in the reconstructed velocity. The second component is the error between the sound pressure on the holographic plane and its estimate obtained from forward propagating the pressure and velocity fields on the structure through the Kirchhoff–Helmholtz integral; thus, bringing some knowledge about the physics of the process under study into the estimation algorithm. Due to the explicit presence of the Kirchhoff–Helmholtz integral in the loss function, we name the proposed technique the Kirchhoff–Helmholtz-based convolutional neural network, KHCNN. KHCNN has been tested on two large datasets of rectangular plates and violin shells. Results show that it attains very good accuracy, with a gain in the NMSE of the estimated velocity field that can top 10 dB, with respect to state-of-the-art techniques. The same trend is observed if the normalized cross correlation is used as a metric.

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29

Kac, Eduardo, e Ormeo Botelho. "Holopoetry and Fractal Holopoetry: Digital Holography as an Art Medium". Leonardo 22, n. 3/4 (1989): 397. http://dx.doi.org/10.2307/1575403.

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30

Matsushima, K., S. Nakahara, Y. Arima, H. Nishi, H. Yamashita, Y. Yoshizaki e K. Ogawa. "Computer holography: 3D digital art based on high-definition CGH". Journal of Physics: Conference Series 415 (22 febbraio 2013): 012053. http://dx.doi.org/10.1088/1742-6596/415/1/012053.

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31

Capucci, Pier Luigi. "The case of holography among Media Studies, art and science". Technoetic Arts 9, n. 2 (17 maggio 2012): 247–53. http://dx.doi.org/10.1386/tear.9.2-3.247_1.

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32

Berkhout, Rudie. "Holography: Exploring a New Art Realm: Shaping Empty Space with Light". Leonardo 22, n. 3/4 (1989): 313. http://dx.doi.org/10.2307/1575385.

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33

Linck, Martin, Bert Freitag, Stephan Kujawa, Michael Lehmann e Tore Niermann. "State of the art in atomic resolution off-axis electron holography". Ultramicroscopy 116 (maggio 2012): 13–23. http://dx.doi.org/10.1016/j.ultramic.2012.01.019.

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34

Blinder, David, e Peter Schelkens. "Fast Low-Precision Computer-Generated Holography on GPU". Applied Sciences 11, n. 13 (5 luglio 2021): 6235. http://dx.doi.org/10.3390/app11136235.

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Abstract (sommario):

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 solutions are developed to significantly reduce calculation time and power consumption. In this work, we propose a novel algorithm for high-performance point-based CGH, leveraging fixed-point integer representations, the separability of the Fresnel transform and using new look-up table free cosine representation. We report up to a 3-fold speed up over an optimized floating-point GPU implementation, as well as a 15 dB increase in quality over a state-of-the-art FPGA-based fixed-point integer solution.

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35

Lightfoot, D. Tulla. "Contemporary Art-World Bias in Regard to Display Holography: New York City". Leonardo 22, n. 3/4 (1989): 419. http://dx.doi.org/10.2307/1575409.

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36

Orlov, Sergei S., Snezhana I. Abarzhi, Se Baek Oh, George Barbastathis e Katepalli R. Sreenivasan. "High-performance holographic technologies for fluid-dynamics experiments". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 368, n. 1916 (13 aprile 2010): 1705–37. http://dx.doi.org/10.1098/rsta.2009.0285.

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Modern technologies offer new opportunities for experimentalists in a variety of research areas of fluid dynamics. Improvements are now possible in the state-of-the-art in precision, dynamic range, reproducibility, motion-control accuracy, data-acquisition rate and information capacity. These improvements are required for understanding complex turbulent flows under realistic conditions, and for allowing unambiguous comparisons to be made with new theoretical approaches and large-scale numerical simulations. One of the new technologies is high-performance digital holography. State-of-the-art motion control, electronics and optical imaging allow for the realization of turbulent flows with very high Reynolds number (more than 10 7 ) on a relatively small laboratory scale, and quantification of their properties with high space–time resolutions and bandwidth. In-line digital holographic technology can provide complete three-dimensional mapping of the flow velocity and density fields at high data rates (over 1000 frames per second) over a relatively large spatial area with high spatial (1–10 μm) and temporal (better than a few nanoseconds) resolution, and can give accurate quantitative description of the fluid flows, including those of multi-phase and unsteady conditions. This technology can be applied in a variety of problems to study fundamental properties of flow–particle interactions, rotating flows, non-canonical boundary layers and Rayleigh–Taylor mixing. Some of these examples are discussed briefly.

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37

Cooper, David, e Jean Luc Rouviere. "Strain Measurement with Nanometre Resolution by Transmission Electron Microscopy". Advanced Materials Research 996 (agosto 2014): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amr.996.3.

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Strain is routinely used in state-of-the-art semiconductor devices in order to improve their electrical performance. Here we present experimental strain measurements obtained by different transmission electron microscopy (TEM) based techniques. Dark field electron holography, nanobeam electron diffraction (NBED) and high angle annular dark field scanning electron microscopy (HAADF STEM) are demonstrated. In this paper we demonstrate the spatial resolution and sensitivity of these different techniques on a simple calibration specimen where the accuracy of the measurement can easily be assessed.

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38

Ivashov, Sergey I., Vladimir V. Razevig, Dmitriy L. Sergeev, Alexander S. Bugaev, Feng Zhou, Elena I. Prokhanova, Anastasia V. Shcherbakova, Sergey N. Dobrynin e Maxim Vasilenkov. "An Example of Microwave Holography Investigation of an Old Orthodox Russian Icon Dated to 19th Century". Heritage 5, n. 3 (19 settembre 2022): 2804–17. http://dx.doi.org/10.3390/heritage5030145.

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The study, preservation and restoration of the cultural heritage objects of mankind are not only of great cultural importance but also have a significant economic component because cultural values of past centuries attract tourists from all over the world. The use of modern technical and scientific achievements in the field of non-destructive testing makes it possible to obtain new knowledge about cultural objects regarding their origin and dating, as well as to contribute to their better restoration and preservation. An important component of their use is additional opportunities to identify high quality fakes of original cultural objects that have historical significance. The capabilities of various non-destructive testing (NDT) methods used to examine cultural objects are characterized by their penetration depth, resolution, and sensitivity to material properties. Thus, in many cases, it is necessary to perform multi-sensor non-destructive testing and creating large data sets that require an efficient evaluation. This article considers an example of using microwave (MW) holographic sensors for the examining of an old Orthodox Russian Icon dated of the late 19th century. The paper describes the technology of microwave holography, which has recently been applied to the examination of art works. Unlike the well-studied X-ray method, MW holography makes it possible to examine objects with one-sided access. Its other advantages are the relative cheapness of the equipment and the safety of use due to the low level of radiation. The article describes a MW holograms reconstruction algorithm, as well as a method for improving the quality of obtained MW images. The data collected at MW research of the Icon are compared with the results of X-ray examination and confirmed by subsequent opening and visual examination performed by professional restorers.

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Nienałtowski, Patryk, Maria Baczewska e Małgorzata Kujawińska. "Comparison of fixed and living biological cells parameters investigated with digital holographic microscope". Photonics Letters of Poland 12, n. 1 (31 marzo 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 based on quantitative phase (label-free) analysis.Full Text: PDF References:K. Alm, et al. "Cells and Holograms – Holograms and Digital Holographic Microscopy as a Tool to Study the Morphology of Living Cells", InTech, 2013. [CrossRef]Y. Rivenson, Y. Wu, A. Ozcan, Light: "Deep learning in holography and coherent imaging", Science & Applications, 8, Art. No. 85 (2019) [CrossRef]Min, et al. Optics Letters, 42, Issue 2, pp. 227-230, (2017) [CrossRef]M. Baczewska, Measurements and analysis of cells and histological skin sections based on digital holographic microscopy, WUT master thesis, 2018. [CrossRef]P. Stępień, D. Korbuszewski, M. Kujawińska, "Digital Holographic Microscopy with extended field of view using tool for generic image stitching", ETRI Journal, 41(1), 73-83, (2019). [CrossRef]S. Beucher, Serge, The Watershed Transformation Applied To Image Segmentation, Scanning microscopy. Supplement 6, (2000) [DirectLink]J. A. Hartigan, M. A. Wong, "A K-Means Clustering Algorithm", Applied Statistics, (1979) [CrossRef]J. Serra, Image Analysis and Mathematical Morphology, Academic Press, (1982) [DirectLink]P. Girshovitz, N. T. Shaked, "Generalized cell morphological parameters based on interferometric phase microscopy and their application to cell life cycle characterization", Biomedical Optics Express Vol. 3, Issue 8, pp. 1757-1773, (2012) [CrossRef]

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40

Liu, Y. J., e X. W. Sun. "Holographic Polymer-Dispersed Liquid Crystals: Materials, Formation, and Applications". Advances in OptoElectronics 2008 (27 aprile 2008): 1–52. http://dx.doi.org/10.1155/2008/684349.

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By combining polymer-dispersed liquid crystal (PDLC) and holography, holographic PDLC (H-PDLC) has emerged as a new composite material for switchable or tunable optical devices. Generally, H-PDLC structures are created in a liquid crystal cell filled with polymer-dispersed liquid crystal materials by recording the interference pattern generated by two or more coherent laser beams which is a fast and single-step fabrication. With a relatively ideal phase separation between liquid crystals and polymers, periodic refractive index profile is formed in the cell and thus light can be diffracted. Under a suitable electric field, the light diffraction behavior disappears due to the index matching between liquid crystals and polymers. H-PDLCs show a fast switching time due to the small size of the liquid crystal droplets. So far, H-PDLCs have been applied in many promising applications in photonics, such as flat panel displays, switchable gratings, switchable lasers, switchable microlenses, and switchable photonic crystals. In this paper, we review the current state-of-the-art of H-PDLCs including the materials used to date, the grating formation dynamics and simulations, the optimization of electro-optical properties, the photonic applications, and the issues existed in H-PDLCs.

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Topic, Ante, Mladen Russo, Maja Stella e Matko Saric. "Emotion Recognition Using a Reduced Set of EEG Channels Based on Holographic Feature Maps". Sensors 22, n. 9 (23 aprile 2022): 3248. http://dx.doi.org/10.3390/s22093248.

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An important function of the construction of the Brain-Computer Interface (BCI) device is the development of a model that is able to recognize emotions from electroencephalogram (EEG) signals. Research in this area is very challenging because the EEG signal is non-stationary, non-linear, and contains a lot of noise due to artifacts caused by muscle activity and poor electrode contact. EEG signals are recorded with non-invasive wearable devices using a large number of electrodes, which increase the dimensionality and, thereby, also the computational complexity of EEG data. It also reduces the level of comfort of the subjects. This paper implements our holographic features, investigates electrode selection, and uses the most relevant channels to maximize model accuracy. The ReliefF and Neighborhood Component Analysis (NCA) methods were used to select the optimal electrodes. Verification was performed on four publicly available datasets. Our holographic feature maps were constructed using computer-generated holography (CGH) based on the values of signal characteristics displayed in space. The resulting 2D maps are the input to the Convolutional Neural Network (CNN), which serves as a feature extraction method. This methodology uses a reduced set of electrodes, which are different between men and women, and obtains state-of-the-art results in a three-dimensional emotional space. The experimental results show that the channel selection methods improve emotion recognition rates significantly with an accuracy of 90.76% for valence, 92.92% for arousal, and 92.97% for dominance.

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Madsen, Andreas Erik Gejl, René Lynge Eriksen e Jesper Glückstad. "Comparison of state-of-the-art Computer Generated Holography algorithms and a machine learning approach". Optics Communications 505 (febbraio 2022): 127590. http://dx.doi.org/10.1016/j.optcom.2021.127590.

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Matteucci, Giorgio. "Holography: origin, basic principle and applications of a revolutionary communication method in art and science". Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 39 (16 novembre 2015): 11. http://dx.doi.org/10.18257/raccefyn.251.

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Dotsenko, S., e Chzhen Van. "Immersive technologies: a symbiosis of digital technologies and art". New Collegium 1, n. 110 (28 marzo 2023): 118–24. http://dx.doi.org/10.30837/nc.2023.1-2.118.

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Immersive technologies are one of the strategic vectors of modern education. Immersive in English means “immersion”. In the context of pedagogical science, it is a method of teaching with elements of relaxation, play, and immersion in an artificially modeled reality. Several concepts of immersive technologies are defined: virtual reality (VR); augmented reality (AR); mixed reality (MR); holography, TelePresence; digital twin; FPV drone flight, etc. The author has revealed the meaning of the immersive approach in education, which we interpret as a set of methods and means of organizing productive interaction of participants in the educational process in a virtual (immersive) educational environment that provides interactive learning, comprehensive and targeted professional development. An immersive learning environment is understood as a dynamic process of influencing the user by various elements of the simulated external/internal environment. The author substantiates immersive in literature, painting, and theater. Thus, immersive is primarily associated with the object-spatial modeled environment, which is designed to draw the viewer inside. The article pays special attention to the creation of an immersive learning environment, which has certain characteristic features, namely: redundancy, saturation, constructiveness; observation, autonomy; integrity; motivational; interactivity. The advantages of the immersive environment are identified: the ability to visualize complex processes and phenomena; minimization of extraneous factors; high degree of personalization of the learning process; stimulation of the accumulation of experience of independent cognitive activity, development of activity in educational activities; prompt and visual display of the results obtained; facilitation of communication between participants in the educational process, etc.

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Lichte, Hannes, Dietrich Schulze, Michael Lehmann, Holger Just, Taher Erabi, Peter Fuerst, Jaqueline Goebel, Andreas Hasenpusch e Peter Dietz. "The Triebenberg Laboratory-Designed for Highest Resolution Electron Microscopy and Holography". Microscopy and Microanalysis 7, S2 (agosto 2001): 894–95. http://dx.doi.org/10.1017/s1431927600030543.

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Very often, the performance of modern electron microscopes is limited by the poor quality of the laboratory rather than by the specifications of the microscope. Therefore, with microscopes aiming at subangstrom resolution microscopy and highest performing holography methods, special measures have to be taken to reach the needed low level of AC-stray fields, vibrations, and acoustic noise. in an ”organically“ grown institute, this is very difficult to realize, if possible at all.• The Triebenberg Lab is newly built well outside the city of Dresden, in an area essentially free from disturbances, i.e. free from power lines, away from roads, trains and airplanes; fortunately, the site is shielded from wind by means of a dense belt of trees. The lab houses six microscope units each consisting of a microscope room, a room for peripheral devices (power supply, cooling units, computers, etc), and an office for up to three scientists. in view of the nearly ideal environment, the main challenge is to avoid any self-made disturbances which might arise by the operation of the lab. Therefore, without any compromise using the best art of engineering, we designed a special lab virtually free from disturbances. in the following, the main guidelines for the construction are sketched.

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Mitamura, Shunsuke. "Holographic Holography". Leonardo 22, n. 3/4 (1989): 337. http://dx.doi.org/10.2307/1575389.

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Dombi, Péter, e Reinhard Kienberger. "A nobel prize for attosecond physics based on extreme nonlinear optics". Europhysics News 55, n. 1 (2024): 16–21. http://dx.doi.org/10.1051/epn/2024106.

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Nobel Prizes related to lasers are awarded for their application in pioneering research areas, as was the case in 2023. Lasers are closely linked to 13-14 Physics Prizes, involving new discoveries, inventions, or research methods. The list is long, including optical fibers, optical tweezers, frequency combs, femtochemistry research, and research related to trapped particles. Lasers also play a crucial role in detecting gravitational waves and in holography. The 2023 award fits into this powerful series. The Prize and the oeuvre of Pierre Agostini, Ferenc Krausz and Anne L’Huillier shows how state-of-the-art laser technology enabled the emergence of extreme nonlinear optics and attophysics and, in turn, how attosecond science triggered the development of revolutionary light sources that are now used in medical diagnostics research or the semiconductor industry.

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Kazanskiy, Nikolay L., Svetlana N. Khonina e Muhammad A. Butt. "Recent Development in Metasurfaces: A Focus on Sensing Applications". Nanomaterials 13, n. 1 (26 dicembre 2022): 118. http://dx.doi.org/10.3390/nano13010118.

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One of the fastest-expanding study areas in optics over the past decade has been metasurfaces (MSs). These subwavelength meta-atom-based ultrathin arrays have been developed for a broad range of functions, including lenses, polarization control, holography, coloring, spectroscopy, sensors, and many more. They allow exact control of the many properties of electromagnetic waves. The performance of MSs has dramatically improved because of recent developments in nanofabrication methods, and this concept has developed to the point that it may be used in commercial applications. In this review, a vital topic of sensing has been considered and an up-to-date study has been carried out. Three different kinds of MS absorber sensor formations, all-dielectric, all-metallic, and hybrid configurations, are presented for biochemical sensing applications. We believe that this review paper will provide current knowledge on state-of-the-art sensing devices based on MSs.

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MATOBA, Osamu. "Preface on Special Issue on Entitled by“ State-of-the-Art 3D Television Techniques Based on Holography and Perspectives”". Review of Laser Engineering 44, n. 7 (2016): 412. http://dx.doi.org/10.2184/lsj.44.7_412.

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Ran, W. D. "On-line reconstruction of electron holograms". Proceedings, annual meeting, Electron Microscopy Society of America 51 (1 agosto 1993): 1064–65. http://dx.doi.org/10.1017/s0424820100151155.

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Electron-off-axis holography has proven to be a most promising tool for the collection of the complete information about amplitude and phase modulation of the complex electron image wave in one single micrograph. Then amplitude and phase can be reconstructed numerically, offering almost any wave-optical possibility for the evaluation of the electron object wave at the exit surface, including the elimination of the influence of coherent aberrations of the objective lens in the image wave. Bottle-neck of the whole two step - registration and reconstruction - procedure has long been the need for highly accurate conversion of the holograms to numerical data as well as the available computational power, since the necessary Fast Fourier Transforms are time consuming numerical operations. Modern CCD slow-scan detectors and the permanently increasing computing power speed up this process and. combined with state of the art FEG microscopy, supply the reconstructed amplitude and phase of the image wave to the microscopist on-line.

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