Holography and its applications for industry 4.0: An overview

Haleem, Abid; Javaid, Mohd; Singh, Ravi Pratap; Suman, Rajiv; Rab, Shanay

doi:10.1016/j.iotcps.2022.05.004

Cited by 17 publications

(3 citation statements)

References 53 publications

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“…1 This technique is already established in several areas, such as biology, 2 medical imaging 3 and industry. 4 Unlike traditional photography, which captures flat, two-dimensional images, digital holography records light wave intensity and phase. This information is then used to reconstruct 3D images with depth and perspective, making it a powerful tool in various applications.…”

Section: Introductionmentioning

confidence: 99%

“…Digital holography (DH) is a technique that involves digital hologram recording, numerical reconstruction, and related techniques for capturing and visualising three‐dimensional objects or scenes 1 . This technique is already established in several areas, such as biology, 2 medical imaging 3 and industry 4 . Unlike traditional photography, which captures flat, two‐dimensional images, digital holography records light wave intensity and phase.…”

Section: Introductionmentioning

confidence: 99%

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Complete holography‐based system for the identification of microparticles in water samples

Júnior,

Distante,

Gonçalves

2023

Journal of Microscopy

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Here, we present a comprehensive holography‐based system designed for detecting microparticles through microscopic holographic projections of water samples. This system is designed for researchers who may be unfamiliar with holographic technology but are engaged in microparticle research, particularly in the field of water analysis. Additionally, our innovative system can be deployed for environmental monitoring as a component of an autonomous sailboat robot. Our system's primary application is for large‐scale classification of diverse microplastics that are prevalent in water bodies worldwide. This paper provides a step‐by‐step guide for constructing our system and outlines its entire processing pipeline, including hologram acquisition for image reconstruction.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Complete holography‐based system for the identification of microparticles in water samples

Júnior,

Distante,

Gonçalves

2023

Journal of Microscopy

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“…So, holography today is a new innovative technology that can completely transform the use of digital technologies in new cybernetic systems. Holographic technologies can increase the efficiency of existing products and services in many technology sectors such as architecture, 3D modeling, robotics, healthcare and medical engineering [6,7].…”

Section: Introductionmentioning

confidence: 99%

Application of the associative recovery method in the challenges of increase informativity of distorted images and detection of minor changes in stored samples

Husak

2022

TAPR

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The object of research is optical-electronic methods and related digital information processing. One of the most problematic areas is the reconstruction of missing parts of the stored data and the inability to detect minor changes in the stored samples, as well as the reconstruction of the entire corrected template from its incomplete version. As part of the study, a correlation-optical approach to the problem of holographic associative memory was used, which made it possible to achieve highly efficient heteroassociative reconstruction of the entire corrected template from its incomplete version. The analysis of hologram models with phantom images and nonlinearly recorded holograms read in the associative mode shows a wide range of useful possibilities. It is primed not only in the tasks of reconstruction of data, but also in the case of insignificant changes in savings, highly effective heteroassociative reconstruction based on a non-interference mechanism. The analysis of the results of the correlation-optical approach to the problem of holographic associative memory shows that the described method opens up additional opportunities for solving the problems of detecting small changes in the object scene, which is important, in particular, for early registration of events and phenomena. It is related to the fact that the detection and localization of changes is carried out according to the difference in intensity across the image field (the effect of brightness inversion in the phantom image of referenceless hologram): the brightness of the image of the changed area is higher, and to a greater extent, the smaller the changes compared to the reference image. It should be especially noted that the specified properties of the nonlinear-holographic associative memory are realized not algorithmically, but physically, taking into account the fundamental nonlinearity of all natural processes, which is neglected when conducting a superficial (in the first approximation) analysis. Physical modeling of associative memory based on second-order holograms does not involve any circuit complications compared to the standard holographic procedure.

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